Remove.

ok deraadt@ & many others.

45 files changed, 0 insertions, 12431 deletions

diff --git a/sys/gnu/arch/i386/fpemul/Changelog b/sys/gnu/arch/i386/fpemul/Changelog
deleted file mode 100644
index 2585537d27f..00000000000
--- a/sys/gnu/arch/i386/fpemul/Changelog
+++ /dev/null
@@ -1,38 +0,0 @@
-$OpenBSD: Changelog,v 1.1 1996/08/27 10:32:38 downsj Exp $
-
-This file contains the changes made to W. Metzenthem's 387 FPU
-emulator to make it work under NetBSD.
-
-a, Changes to make it compile:
-	
-	1 - Changed the #include's to get the appropriate .h files.
-	2 - Renamed .S to .s, to satisfy the kernel Makefile.
-	3 - Changed the C++ style // comments to /* */
-	4 - Changed the FPU_ORIG_EIP macro. A letter from bde included
-		in the package suggested using tf_isp for using instead
-		of the linux __orig_eip. This later turned out to interfere
-		with the user stack, so i created a separate variable, stored
-		in the i387_union.
-	5 - Changed the get_fs_.. put_fs_.. fns to fubyte,fuword,subyte,
-		suword.
-	6 - Removed the verify_area fns. I don't really know what they do,
-		i suppose they verify access to memory. The sufu routines
-		should do this.
-
-b, Changes to make it work:
-	
-	1 - Made math_emulate() to return 0 when successful, so trap() won't
-		try to generate a signal.
-	2 - Changed the size of the save87 struct in /sys/arch/i387/include/
-		npx.h to accomodate the i387_union.
-	
-d, Other changes:
-
-	1 - Removed obsolate and/or linux specific stuff.
-	2 - Changed the RE_ENTRANT_CHECK_[ON|OFF] macro to
-		REENTRANT_CHECK([ON|OFF]) so indent can grok it.
-	3 - Re-indented to Berkeley style.
-	4 - Limited max no of lookaheads. LOOKAHEAD_LIMIT in fpu_entry.c
-
-
-	Szabolcs Szigeti (pink@fsz.bme.hu)
diff --git a/sys/gnu/arch/i386/fpemul/README b/sys/gnu/arch/i386/fpemul/README
deleted file mode 100644
index a477cbe0ff5..00000000000
--- a/sys/gnu/arch/i386/fpemul/README
+++ /dev/null
@@ -1,278 +0,0 @@
-$OpenBSD: README,v 1.1 1996/08/27 10:32:39 downsj Exp $
-/*
- *  wm-FPU-emu   an FPU emulator for 80386 and 80486SX microprocessors.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- */
-
-wm-FPU-emu is an FPU emulator for Linux. It is derived from wm-emu387
-which is my 80387 emulator for djgpp (gcc under msdos); wm-emu387 was
-in turn based upon emu387 which was written by DJ Delorie for djgpp.
-The interface to the Linux kernel is based upon the original Linux
-math emulator by Linus Torvalds.
-
-My target FPU for wm-FPU-emu is that described in the Intel486
-Programmer's Reference Manual (1992 edition). Numerous facets of the
-functioning of the FPU are not well covered in the Reference Manual;
-in the absence of clear details I have made guesses about the most
-reasonable behaviour. Recently, this situation has improved because
-I now have some access to the results produced by a real 80486 FPU.
-
-wm-FPU-emu does not implement all of the behaviour of the 80486 FPU. 
-See "Limitations" later in this file for a partial list of some
-differences.  I believe that the missing features are never used by
-normal C or FORTRAN programs. 
-
-
-Please report bugs, etc to me at:
-       apm233m@vaxc.cc.monash.edu.au
-
-
---Bill Metzenthen
-  May 1993
-
-
------------------------ Internals of wm-FPU-emu -----------------------
-
-Numeric algorithms:
-(1) Add, subtract, and multiply. Nothing remarkable in these.
-(2) Divide has been tuned to get reasonable performance. The algorithm
-    is not the obvious one which most people seem to use, but is designed
-    to take advantage of the characteristics of the 80386. I expect that
-    it has been invented many times before I discovered it, but I have not
-    seen it. It is based upon one of those ideas which one carries around
-    for years without ever bothering to check it out.
-(3) The sqrt function has been tuned to get good performance. It is based
-    upon Newton's classic method. Performance was improved by capitalizing
-    upon the properties of Newton's method, and the code is once again
-    structured taking account of the 80386 characteristics.
-(4) The trig, log, and exp functions are based in each case upon quasi-
-    "optimal" polynomial approximations. My definition of "optimal" was
-    based upon getting good accuracy with reasonable speed.
-
-The code of the emulator is complicated slightly by the need to
-account for a limited form of re-entrancy. Normally, the emulator will
-emulate each FPU instruction to completion without interruption.
-However, it may happen that when the emulator is accessing the user
-memory space, swapping may be needed. In this case the emulator may be
-temporarily suspended while disk i/o takes place. During this time
-another process may use the emulator, thereby changing some static
-variables (eg FPU_st0_ptr, etc). The code which accesses user memory
-is confined to five files:
-    fpu_entry.c
-    reg_ld_str.c
-    load_store.c
-    get_address.c
-    errors.c
-
------------------------ Limitations of wm-FPU-emu -----------------------
-
-There are a number of differences between the current wm-FPU-emu
-(version beta 1.4) and the 80486 FPU (apart from bugs). Some of the
-more important differences are listed below:
-
-All internal computations are performed at 64 bit or higher precision
-and rounded etc as required by the PC bits of the FPU control word.
-Under the crt0 version for Linux current at March 1993, the FPU PC
-bits specify 53 bits precision.
-
-The precision flag (PE of the FPU status word) and the Roundup flag
-(C1 of the status word) are now partially implemented. Does anyone
-write code which uses these features?
-
-The functions which load/store the FPU state are partially implemented,
-but the implementation should be sufficient for handling FPU errors etc
-in 32 bit protected mode.
-
-The implementation of the exception mechanism is flawed for unmasked
-interrupts.
-
-Detection of certain conditions, such as denormal operands, is not yet
-complete.
-
------------------------ Performance of wm-FPU-emu -----------------------
-
-Speed.
------
-
-The speed of floating point computation with the emulator will depend
-upon instruction mix. Relative performance is best for the instructions
-which require most computation. The simple instructions are adversely
-affected by the fpu instruction trap overhead.
-
-
-Timing: Some simple timing tests have been made on the emulator functions.
-The times include load/store instructions. All times are in microseconds
-measured on a 33MHz 386 with 64k cache. The Turbo C tests were under
-ms-dos, the next two columns are for emulators running with the djgpp
-ms-dos extender. The final column is for wm-FPU-emu in Linux 0.97,
-using libm4.0 (hard).
-
-function      Turbo C        djgpp 1.06        WM-emu387     wm-FPU-emu
-
-   +          60.5           154.8              76.5          139.4
-   -          61.1-65.5      157.3-160.8        76.2-79.5     142.9-144.7
-   *          71.0           190.8              79.6          146.6
-   /          61.2-75.0      261.4-266.9        75.3-91.6     142.2-158.1
-
- sin()        310.8          4692.0            319.0          398.5
- cos()        284.4          4855.2            308.0          388.7
- tan()        495.0          8807.1            394.9          504.7
- atan()       328.9          4866.4            601.1          419.5-491.9
-
- sqrt()       128.7          crashed           145.2          227.0
- log()        413.1-419.1    5103.4-5354.21    254.7-282.2    409.4-437.1
- exp()        479.1          6619.2            469.1          850.8
-
-
-The performance under Linux is improved by the use of look-ahead code.
-The following results show the improvement which is obtained under
-Linux due to the look-ahead code. Also given are the times for the
-original Linux emulator with the 4.1 'soft' lib.
-
- [ Linus' note: I changed look-ahead to be the default under linux, as
-   there was no reason not to use it after I had edited it to be
-   disabled during tracing ]
-
-            wm-FPU-emu w     original w
-            look-ahead       'soft' lib
-   +         106.4             190.2
-   -         108.6-111.6      192.4-216.2
-   *         113.4             193.1
-   /         108.8-124.4      700.1-706.2
-
- sin()       390.5            2642.0
- cos()       381.5            2767.4
- tan()       496.5            3153.3
- atan()      367.2-435.5     2439.4-3396.8
-
- sqrt()      195.1            4732.5
- log()       358.0-387.5     3359.2-3390.3
- exp()       619.3            4046.4
-
-
-These figures are now somewhat out-of-date. The emulator has become
-progressively slower for most functions as more of the 80486 features
-have been implemented.
-
-
------------------------ Accuracy of wm-FPU-emu -----------------------
-
-
-Accuracy: The following table gives the accuracy of the sqrt(), trig
-and log functions. Each function was tested at about 400 points. Ideal
-results would be 64 bits. The reduced accuracy of cos() and tan() for
-arguments greater than pi/4 can be thought of as being due to the
-precision of the argument x; e.g. an argument of pi/2-(1e-10) which is
-accurate to 64 bits can result in a relative accuracy in cos() of about
-64 + log2(cos(x)) = 31 bits. Results for the Turbo C emulator are given
-in the last column.
-
-
-Function      Tested x range            Worst result (bits)         Turbo C
-
-sqrt(x)       1 .. 2                    64.1                         63.2
-atan(x)       1e-10 .. 200              62.6                         62.8
-cos(x)        0 .. pi/2-(1e-10)         63.2 (x <= pi/4)             62.4
-                                        35.2 (x = pi/2-(1e-10))      31.9
-sin(x)        1e-10 .. pi/2             63.0                         62.8
-tan(x)        1e-10 .. pi/2-(1e-10)     62.4 (x <= pi/4)             62.1
-                                        35.2 (x = pi/2-(1e-10))      31.9
-exp(x)        0 .. 1                    63.1                         62.9
-log(x)        1+1e-6 .. 2               62.4                         62.1
-
-
-As of version 1.3 of the emulator, the accuracy of the basic
-arithmetic has been improved (by a small fraction of a bit). Care has
-been taken to ensure full accuracy of the rounding of the basic
-arithmetic functions (+,-,*,/,and fsqrt), and they all now produce
-results which are exact to the 64th bit (unless there are any bugs
-left). To ensure this, it was necessary to effectively get information
-of up to about 128 bits precision. The emulator now passes the
-"paranoia" tests (compiled with gcc 2.3.3) for 'float' variables (24
-bit precision numbers) when precision control is set to 24, 53 or 64
-bits, and for 'double' variables (53 bit precision numbers) when
-precision control is set to 53 bits (a properly performing FPU cannot
-pass the 'paranoia' tests for 'double' variables when precision
-control is set to 64 bits).
-
-------------------------- Contributors -------------------------------
-
-A number of people have contributed to the development of the
-emulator, often by just reporting bugs, sometimes with a suggested
-fix, and a few kind people have provided me with access in one way or
-another to an 80486 machine. Contributors include (to those people who
-I have forgotten, please excuse me):
-
-Linus Torvalds
-Tommy.Thorn@daimi.aau.dk
-Andrew.Tridgell@anu.edu.au
-Nick Holloway alfie@dcs.warwick.ac.uk
-Hermano Moura moura@dcs.gla.ac.uk
-Jon Jagger J.Jagger@scp.ac.uk
-Lennart Benschop
-Brian Gallew geek+@CMU.EDU
-Thomas Staniszewski ts3v+@andrew.cmu.edu
-Martin Howell mph@plasma.apana.org.au
-M Saggaf alsaggaf@athena.mit.edu
-Peter Barker PETER@socpsy.sci.fau.edu
-tom@vlsivie.tuwien.ac.at
-Dan Russel russed@rpi.edu
-Daniel Carosone danielce@ee.mu.oz.au
-cae@jpmorgan.com
-Hamish Coleman t933093@minyos.xx.rmit.oz.au
-
-...and numerous others who responded to my request for help with
-a real 80486.
-
diff --git a/sys/gnu/arch/i386/fpemul/README.OpenBSD b/sys/gnu/arch/i386/fpemul/README.OpenBSD
deleted file mode 100644
index 1347ea0a16a..00000000000
--- a/sys/gnu/arch/i386/fpemul/README.OpenBSD
+++ /dev/null
@@ -1,23 +0,0 @@
-$OpenBSD: README.OpenBSD,v 1.1 1996/08/27 10:32:40 downsj Exp $
-
-    OpenBSD distributes this module under the terms of GNU General Public
-    License, version 2.
-    
-    Copyright (C) 1992,1993,1994
-                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
-                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
-    All rights reserved.
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
diff --git a/sys/gnu/arch/i386/fpemul/control_w.h b/sys/gnu/arch/i386/fpemul/control_w.h
deleted file mode 100644
index a9eb8790f52..00000000000
--- a/sys/gnu/arch/i386/fpemul/control_w.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/*	$OpenBSD: control_w.h,v 1.1 1996/08/27 10:32:40 downsj Exp $	*/
-/*
- *  control_w.h
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *        $FreeBSD: control_w.h,v 1.4 1995/05/30 07:57:41 rgrimes Exp $
- *
- */
-
-#ifndef _CONTROLW_H_
-#define _CONTROLW_H_
-
-#ifdef _LOCORE
-#define	_Const_(x)	$/**/x
-#else
-#define	_Const_(x)	x
-#endif
-
-#define CW_RC		_Const_(0x0C00)	/* rounding control */
-#define CW_PC		_Const_(0x0300)	/* precision control */
-
-#define CW_Precision	Const_(0x0020)	/* loss of precision mask */
-#define CW_Underflow	Const_(0x0010)	/* underflow mask */
-#define CW_Overflow	Const_(0x0008)	/* overflow mask */
-#define CW_ZeroDiv	Const_(0x0004)	/* divide by zero mask */
-#define CW_Denormal	Const_(0x0002)	/* denormalized operand mask */
-#define CW_Invalid	Const_(0x0001)	/* invalid operation mask */
-
-#define CW_Exceptions  	_Const_(0x003f)	/* all masks */
-
-#define RC_RND		_Const_(0x0000)
-#define RC_DOWN		_Const_(0x0400)
-#define RC_UP		_Const_(0x0800)
-#define RC_CHOP		_Const_(0x0C00)
-
-/* p 15-5: Precision control bits affect only the following:
-   ADD, SUB(R), MUL, DIV(R), and SQRT */
-#define PR_24_BITS      _Const_(0x000)
-#define PR_53_BITS      _Const_(0x200)
-#define PR_64_BITS      _Const_(0x300)
-/* FULL_PRECISION simulates all exceptions masked */
-#define FULL_PRECISION  (PR_64_BITS | RC_RND | 0x3f)
-
-#endif				/* _CONTROLW_H_ */
diff --git a/sys/gnu/arch/i386/fpemul/div_small.s b/sys/gnu/arch/i386/fpemul/div_small.s
deleted file mode 100644
index ae93cfd435e..00000000000
--- a/sys/gnu/arch/i386/fpemul/div_small.s
+++ /dev/null
@@ -1,108 +0,0 @@
-	.file	"div_small.S"
-/*	$OpenBSD: div_small.s,v 1.2 2002/10/12 07:12:58 pvalchev Exp $	*/
-/*
- *  div_small.S
- *
- * Divide a 64 bit integer by a 32 bit integer & return remainder.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- * 
- *     $FreeBSD: div_small.s,v 1.3 1994/06/10 07:44:08 rich Exp $
- *
- */
-
-/*---------------------------------------------------------------------------+
- |    unsigned long div_small(unsigned long long *x, unsigned long y)        |
- +---------------------------------------------------------------------------*/
-
-#include <machine/asm.h>
-
-#include <gnu/arch/i386/fpemul/fpu_asm.h>
-
-.text
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-
-.globl _C_LABEL(div_small)
-
-_C_LABEL(div_small):
-	pushl	%ebp
-	movl	%esp,%ebp
-
-	pushl	%esi
-
-	movl	PARAM1,%esi	/* pointer to num */
-	movl	PARAM2,%ecx	/* The denominator */
-
-	movl	4(%esi),%eax	/* Get the current num msw */
-	xorl	%edx,%edx
-	divl	%ecx
-
-	movl	%eax,4(%esi)
-
-	movl	(%esi),%eax	/* Get the num lsw */
-	divl	%ecx
-
-	movl	%eax,(%esi)
-
-	movl	%edx,%eax	/* Return the remainder in eax */
-
-	popl	%esi
-
-	leave
-	ret
-
diff --git a/sys/gnu/arch/i386/fpemul/errors.c b/sys/gnu/arch/i386/fpemul/errors.c
deleted file mode 100644
index 391018508c0..00000000000
--- a/sys/gnu/arch/i386/fpemul/errors.c
+++ /dev/null
@@ -1,617 +0,0 @@
-/*	$OpenBSD: errors.c,v 1.4 2003/08/08 04:21:44 jason Exp $	*/
-/*
- *  errors.c
- *
- *  The error handling functions for wm-FPU-emu
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *    $FreeBSD: errors.c,v 1.4 1995/03/16 18:11:10 bde Exp $
- *
- */
-
-/*---------------------------------------------------------------------------+
- | Note:                                                                     |
- |    The file contains code which accesses user memory.                     |
- |    Emulator static data may change when user memory is accessed, due to   |
- |    other processes using the emulator while swapping is in progress.      |
- +---------------------------------------------------------------------------*/
-
-
-
-
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/proc.h>
-#include <sys/user.h>
-#include <machine/cpu.h>
-#include <machine/pcb.h>
-
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/fpu_system.h>
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/status_w.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-#include <gnu/arch/i386/fpemul/reg_constant.h>
-#include <gnu/arch/i386/fpemul/version.h>
-
-/* */
-#undef PRINT_MESSAGES
-/* */
-
-
-void
-Un_impl(void)
-{
-	unsigned char byte1, FPU_modrm;
-
-	REENTRANT_CHECK(OFF);
-	copyin((u_char *)FPU_ORIG_EIP, &byte1, sizeof(u_char));
-	copyin((u_char *)FPU_ORIG_EIP + 1, &FPU_modrm, sizeof(u_char));
-
-	printf("Unimplemented FPU Opcode at eip=%p : %02x ",
-	    FPU_ORIG_EIP, byte1);
-
-	if (FPU_modrm >= 0300)
-		printf("%02x (%02x+%d)\n", FPU_modrm, FPU_modrm & 0xf8, FPU_modrm & 7);
-	else
-		printf("/%d\n", (FPU_modrm >> 3) & 7);
-	REENTRANT_CHECK(ON);
-
-	EXCEPTION(EX_Invalid);
-
-}
-
-
-#ifdef DEBUG
-void
-emu_printall()
-{
-	int     i;
-	static char *tag_desc[] = {"Valid", "Zero", "ERROR", "ERROR",
-	"DeNorm", "Inf", "NaN", "Empty"};
-	unsigned char byte1, FPU_modrm;
-
-	REENTRANT_CHECK(OFF);
-	copyin((u_char *)FPU_ORIG_EIP, &byte1, sizeof(u_char));
-	copyin((u_char *)FPU_ORIG_EIP + 1, &FPU_modrm, sizeof(u_char));
-
-#ifdef DEBUGGING
-	if (status_word & SW_Backward)
-		printf("SW: backward compatibility\n");
-	if (status_word & SW_C3)
-		printf("SW: condition bit 3\n");
-	if (status_word & SW_C2)
-		printf("SW: condition bit 2\n");
-	if (status_word & SW_C1)
-		printf("SW: condition bit 1\n");
-	if (status_word & SW_C0)
-		printf("SW: condition bit 0\n");
-	if (status_word & SW_Summary)
-		printf("SW: exception summary\n");
-	if (status_word & SW_Stack_Fault)
-		printf("SW: stack fault\n");
-	if (status_word & SW_Precision)
-		printf("SW: loss of precision\n");
-	if (status_word & SW_Underflow)
-		printf("SW: underflow\n");
-	if (status_word & SW_Overflow)
-		printf("SW: overflow\n");
-	if (status_word & SW_Zero_Div)
-		printf("SW: divide by zero\n");
-	if (status_word & SW_Denorm_Op)
-		printf("SW: denormalized operand\n");
-	if (status_word & SW_Invalid)
-		printf("SW: invalid operation\n");
-#endif				/* DEBUGGING */
-
-	status_word = status_word & ~SW_Top;
-	status_word |= (top & 7) << SW_Top_Shift;
-
-	printf("At %p: %02x ", FPU_ORIG_EIP, byte1);
-	if (FPU_modrm >= 0300)
-		printf("%02x (%02x+%d)\n", FPU_modrm, FPU_modrm & 0xf8, FPU_modrm & 7);
-	else
-		printf("/%d, mod=%d rm=%d\n",
-		    (FPU_modrm >> 3) & 7, (FPU_modrm >> 6) & 3, FPU_modrm & 7);
-
-	printf(" SW: b=%d st=%d es=%d sf=%d cc=%d%d%d%d ef=%d%d%d%d%d%d\n",
-	    status_word & 0x8000 ? 1 : 0,	/* busy */
-	    (status_word & 0x3800) >> 11,	/* stack top pointer */
-	    status_word & 0x80 ? 1 : 0,	/* Error summary status */
-	    status_word & 0x40 ? 1 : 0,	/* Stack flag */
-	    status_word & SW_C3 ? 1 : 0, status_word & SW_C2 ? 1 : 0,	/* cc */
-	    status_word & SW_C1 ? 1 : 0, status_word & SW_C0 ? 1 : 0,	/* cc */
-	    status_word & SW_Precision ? 1 : 0, status_word & SW_Underflow ? 1 : 0,
-	    status_word & SW_Overflow ? 1 : 0, status_word & SW_Zero_Div ? 1 : 0,
-	    status_word & SW_Denorm_Op ? 1 : 0, status_word & SW_Invalid ? 1 : 0);
-
-	printf(" CW: ic=%d rc=%d%d pc=%d%d iem=%d     ef=%d%d%d%d%d%d\n",
-	    control_word & 0x1000 ? 1 : 0,
-	    (control_word & 0x800) >> 11, (control_word & 0x400) >> 10,
-	    (control_word & 0x200) >> 9, (control_word & 0x100) >> 8,
-	    control_word & 0x80 ? 1 : 0,
-	    control_word & SW_Precision ? 1 : 0, control_word & SW_Underflow ? 1 : 0,
-	    control_word & SW_Overflow ? 1 : 0, control_word & SW_Zero_Div ? 1 : 0,
-	    control_word & SW_Denorm_Op ? 1 : 0, control_word & SW_Invalid ? 1 : 0);
-
-	for (i = 0; i < 8; i++) {
-		FPU_REG *r = &st(i);
-		switch (r->tag) {
-		case TW_Empty:
-			continue;
-			break;
-		case TW_Zero:
-			printf("st(%d)  %c .0000 0000 0000 0000         ",
-			    i, r->sign ? '-' : '+');
-			break;
-		case TW_Valid:
-		case TW_NaN:
-		case TW_Denormal:
-		case TW_Infinity:
-			printf("st(%d)  %c .%04x %04x %04x %04x e%+-6d ", i,
-			    r->sign ? '-' : '+',
-			    (long) (r->sigh >> 16),
-			    (long) (r->sigh & 0xFFFF),
-			    (long) (r->sigl >> 16),
-			    (long) (r->sigl & 0xFFFF),
-			    r->exp - EXP_BIAS + 1);
-			break;
-		default:
-			printf("Whoops! Error in errors.c      ");
-			break;
-		}
-		printf("%s\n", tag_desc[(int) (unsigned) r->tag]);
-	}
-
-	printf("[data] %c .%04x %04x %04x %04x e%+-6d ",
-	    FPU_loaded_data.sign ? '-' : '+',
-	    (long) (FPU_loaded_data.sigh >> 16),
-	    (long) (FPU_loaded_data.sigh & 0xFFFF),
-	    (long) (FPU_loaded_data.sigl >> 16),
-	    (long) (FPU_loaded_data.sigl & 0xFFFF),
-	    FPU_loaded_data.exp - EXP_BIAS + 1);
-	printf("%s\n", tag_desc[(int) (unsigned) FPU_loaded_data.tag]);
-	REENTRANT_CHECK(ON);
-
-}
-#endif
-
-static struct {
-	int     type;
-	char   *name;
-}       exception_names[] = {
-	{
-		EX_StackOver, "stack overflow"
-	},
-	{
-		EX_StackUnder, "stack underflow"
-	},
-	{
-		EX_Precision, "loss of precision"
-	},
-	{
-		EX_Underflow, "underflow"
-	},
-	{
-		EX_Overflow, "overflow"
-	},
-	{
-		EX_ZeroDiv, "divide by zero"
-	},
-	{
-		EX_Denormal, "denormalized operand"
-	},
-	{
-		EX_Invalid, "invalid operation"
-	},
-	{
-		EX_INTERNAL, "INTERNAL BUG in " FPU_VERSION
-	},
-	{
-		0, NULL
-	}
-};
-/*
- EX_INTERNAL is always given with a code which indicates where the
- error was detected.
-
- Internal error types:
-       0x14   in e14.c
-       0x1nn  in a *.c file:
-              0x101  in reg_add_sub.c
-              0x102  in reg_mul.c
-              0x103  in poly_sin.c
-              0x104  in poly_tan.c
-              0x105  in reg_mul.c
-	      0x106  in reg_mov.c
-              0x107  in fpu_trig.c
-	      0x108  in reg_compare.c
-	      0x109  in reg_compare.c
-	      0x110  in reg_add_sub.c
-	      0x111  in interface.c
-	      0x112  in fpu_trig.c
-	      0x113  in reg_add_sub.c
-	      0x114  in reg_ld_str.c
-	      0x115  in fpu_trig.c
-	      0x116  in fpu_trig.c
-	      0x117  in fpu_trig.c
-	      0x118  in fpu_trig.c
-	      0x119  in fpu_trig.c
-	      0x120  in poly_atan.c
-	      0x121  in reg_compare.c
-	      0x122  in reg_compare.c
-	      0x123  in reg_compare.c
-       0x2nn  in an *.s file:
-              0x201  in reg_u_add.S
-              0x202  in reg_u_div.S
-              0x203  in reg_u_div.S
-              0x204  in reg_u_div.S
-              0x205  in reg_u_mul.S
-              0x206  in reg_u_sub.S
-              0x207  in wm_sqrt.S
-	      0x208  in reg_div.S
-              0x209  in reg_u_sub.S
-              0x210  in reg_u_sub.S
-              0x211  in reg_u_sub.S
-              0x212  in reg_u_sub.S
-	      0x213  in wm_sqrt.S
-	      0x214  in wm_sqrt.S
-	      0x215  in wm_sqrt.S
-	      0x216  in reg_round.S
-	      0x217  in reg_round.S
-	      0x218  in reg_round.S
- */
-
-void
-exception(int n)
-{
-	int     i, int_type;
-
-	int_type = 0;		/* Needed only to stop compiler warnings */
-	if (n & EX_INTERNAL) {
-		int_type = n - EX_INTERNAL;
-		n = EX_INTERNAL;
-		/* Set lots of exception bits! */
-		status_word |= (SW_Exc_Mask | SW_Summary | FPU_BUSY);
-	} else {
-		/* Extract only the bits which we use to set the status word */
-		n &= (SW_Exc_Mask);
-		/* Set the corresponding exception bit */
-		status_word |= n;
-		if (status_word & ~control_word & CW_Exceptions)
-			status_word |= SW_Summary;
-		if (n & (SW_Stack_Fault | EX_Precision)) {
-			if (!(n & SW_C1))
-				/* This bit distinguishes over- from underflow
-				 * for a stack fault, and roundup from
-				 * round-down for precision loss. */
-				status_word &= ~SW_C1;
-		}
-	}
-
-	REENTRANT_CHECK(OFF);
-	if ((~control_word & n & CW_Exceptions) || (n == EX_INTERNAL)) {
-#ifdef PRINT_MESSAGES
-		/* My message from the sponsor */
-		printf(FPU_VERSION " " __DATE__ " (C) W. Metzenthen.\n");
-#endif				/* PRINT_MESSAGES */
-
-		/* Get a name string for error reporting */
-		for (i = 0; exception_names[i].type; i++)
-			if ((exception_names[i].type & n) == exception_names[i].type)
-				break;
-
-		if (exception_names[i].type) {
-#ifdef PRINT_MESSAGES
-			printf("FP Exception: %s!\n", exception_names[i].name);
-#endif				/* PRINT_MESSAGES */
-		} else
-			printf("FP emulator: Unknown Exception: 0x%04x!\n", n);
-
-		if (n == EX_INTERNAL) {
-			printf("FP emulator: Internal error type 0x%04x\n", int_type);
-#ifdef DEBUG
-			emu_printall();
-#endif
-		}
-#ifdef PRINT_MESSAGES
-		else
-			emu_printall();
-#endif				/* PRINT_MESSAGES */
-
-		/* The 80486 generates an interrupt on the next non-control
-		 * FPU instruction. So we need some means of flagging it. We
-		 * use the ES (Error Summary) bit for this, assuming that this
-		 * is the way a real FPU does it (until I can check it out),
-		 * if not, then some method such as the following kludge might
-		 * be needed. */
-/*      regs[0].tag |= TW_FPU_Interrupt; */
-	}
-	REENTRANT_CHECK(ON);
-
-#ifdef __DEBUG__
-	math_abort(SIGFPE);
-#endif				/* __DEBUG__ */
-
-}
-
-
-/* Real operation attempted on two operands, one a NaN */
-void
-real_2op_NaN(FPU_REG * a, FPU_REG * b, FPU_REG * dest)
-{
-	FPU_REG *x;
-	int     signalling;
-
-	x = a;
-	if (a->tag == TW_NaN) {
-		if (b->tag == TW_NaN) {
-			signalling = !(a->sigh & b->sigh & 0x40000000);
-			/* find the "larger" */
-			if (*(long long *) &(a->sigl) < *(long long *) &(b->sigl))
-				x = b;
-		} else {
-			/* return the quiet version of the NaN in a */
-			signalling = !(a->sigh & 0x40000000);
-		}
-	} else
-#ifdef PARANOID
-		if (b->tag == TW_NaN)
-#endif				/* PARANOID */
-		{
-			signalling = !(b->sigh & 0x40000000);
-			x = b;
-		}
-#ifdef PARANOID
-		else {
-			signalling = 0;
-			EXCEPTION(EX_INTERNAL | 0x113);
-			x = &CONST_QNaN;
-		}
-#endif				/* PARANOID */
-
-	if (!signalling) {
-		if (!(x->sigh & 0x80000000))	/* pseudo-NaN ? */
-			x = &CONST_QNaN;
-		reg_move(x, dest);
-		return;
-	}
-	if (control_word & CW_Invalid) {
-		/* The masked response */
-		if (!(x->sigh & 0x80000000))	/* pseudo-NaN ? */
-			x = &CONST_QNaN;
-		reg_move(x, dest);
-		/* ensure a Quiet NaN */
-		dest->sigh |= 0x40000000;
-	}
-	EXCEPTION(EX_Invalid);
-
-	return;
-}
-/* Invalid arith operation on Valid registers */
-void
-arith_invalid(FPU_REG * dest)
-{
-
-	if (control_word & CW_Invalid) {
-		/* The masked response */
-		reg_move(&CONST_QNaN, dest);
-	}
-	EXCEPTION(EX_Invalid);
-
-	return;
-
-}
-
-
-/* Divide a finite number by zero */
-void
-divide_by_zero(int sign, FPU_REG * dest)
-{
-
-	if (control_word & CW_ZeroDiv) {
-		/* The masked response */
-		reg_move(&CONST_INF, dest);
-		dest->sign = (unsigned char) sign;
-	}
-	EXCEPTION(EX_ZeroDiv);
-
-	return;
-
-}
-
-
-/* This may be called often, so keep it lean */
-void
-set_precision_flag_up(void)
-{
-	if (control_word & CW_Precision)
-		status_word |= (SW_Precision | SW_C1);	/* The masked response */
-	else
-		exception(EX_Precision | SW_C1);
-
-}
-
-
-/* This may be called often, so keep it lean */
-void
-set_precision_flag_down(void)
-{
-	if (control_word & CW_Precision) {	/* The masked response */
-		status_word &= ~SW_C1;
-		status_word |= SW_Precision;
-	} else
-		exception(EX_Precision);
-}
-
-
-int
-denormal_operand(void)
-{
-	if (control_word & CW_Denormal) {	/* The masked response */
-		status_word |= SW_Denorm_Op;
-		return 0;
-	} else {
-		exception(EX_Denormal);
-		return 1;
-	}
-}
-
-
-void
-arith_overflow(FPU_REG * dest)
-{
-
-	if (control_word & CW_Overflow) {
-		char    sign;
-		/* The masked response */
-/* **** The response here depends upon the rounding mode */
-		sign = dest->sign;
-		reg_move(&CONST_INF, dest);
-		dest->sign = sign;
-	} else {
-		/* Subtract the magic number from the exponent */
-		dest->exp -= (3 * (1 << 13));
-	}
-
-	/* By definition, precision is lost. It appears that the roundup bit
-	 * (C1) is also set by convention. */
-	EXCEPTION(EX_Overflow | EX_Precision | SW_C1);
-
-	return;
-
-}
-
-
-void
-arith_underflow(FPU_REG * dest)
-{
-
-	if (control_word & CW_Underflow) {
-		/* The masked response */
-		if (dest->exp <= EXP_UNDER - 63)
-			reg_move(&CONST_Z, dest);
-	} else {
-		/* Add the magic number to the exponent */
-		dest->exp += (3 * (1 << 13));
-	}
-
-	EXCEPTION(EX_Underflow);
-
-	return;
-}
-
-
-void
-stack_overflow(void)
-{
-
-	if (control_word & CW_Invalid) {
-		/* The masked response */
-		top--;
-		reg_move(&CONST_QNaN, FPU_st0_ptr = &st(0));
-	}
-	EXCEPTION(EX_StackOver);
-
-	return;
-
-}
-
-
-void
-stack_underflow(void)
-{
-
-	if (control_word & CW_Invalid) {
-		/* The masked response */
-		reg_move(&CONST_QNaN, FPU_st0_ptr);
-	}
-	EXCEPTION(EX_StackUnder);
-
-	return;
-
-}
-
-
-void
-stack_underflow_i(int i)
-{
-
-	if (control_word & CW_Invalid) {
-		/* The masked response */
-		reg_move(&CONST_QNaN, &(st(i)));
-	}
-	EXCEPTION(EX_StackUnder);
-
-	return;
-
-}
-
-
-void
-stack_underflow_pop(int i)
-{
-
-	if (control_word & CW_Invalid) {
-		/* The masked response */
-		reg_move(&CONST_QNaN, &(st(i)));
-		pop();
-	}
-	EXCEPTION(EX_StackUnder);
-
-	return;
-
-}
diff --git a/sys/gnu/arch/i386/fpemul/exception.h b/sys/gnu/arch/i386/fpemul/exception.h
deleted file mode 100644
index d96bd7a7d17..00000000000
--- a/sys/gnu/arch/i386/fpemul/exception.h
+++ /dev/null
@@ -1,109 +0,0 @@
-/*	$OpenBSD: exception.h,v 1.1 1996/08/27 10:32:43 downsj Exp $	*/
-/*
- *  exception.h
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *    $FreeBSD: exception.h,v 1.4 1995/12/22 16:53:48 bde Exp $
- *
- *
- */
-
-#ifndef _EXCEPTION_H_
-#define _EXCEPTION_H_
-
-
-#ifdef _LOCORE
-#define	Const_(x)	$/**/x
-#else
-#define	Const_(x)	x
-#endif
-
-#ifndef SW_C1
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#endif				/* SW_C1 */
-
-#define FPU_BUSY        Const_(0x8000)	/* FPU busy bit (8087 compatibility) */
-#define EX_ErrorSummary Const_(0x0080)	/* Error summary status */
-/* Special exceptions: */
-#define	EX_INTERNAL	Const_(0x8000)	/* Internal error in wm-FPU-emu */
-#define EX_StackOver	Const_(0x0041|SW_C1)	/* stack overflow */
-#define EX_StackUnder	Const_(0x0041)	/* stack underflow */
-/* Exception flags: */
-#define EX_Precision	Const_(0x0020)	/* loss of precision */
-#define EX_Underflow	Const_(0x0010)	/* underflow */
-#define EX_Overflow	Const_(0x0008)	/* overflow */
-#define EX_ZeroDiv	Const_(0x0004)	/* divide by zero */
-#define EX_Denormal	Const_(0x0002)	/* denormalized operand */
-#define EX_Invalid	Const_(0x0001)	/* invalid operation */
-
-
-#ifndef _LOCORE
-
-#ifdef DEBUG
-#include <sys/param.h>
-#include <sys/systm.h>
-
-#define	EXCEPTION(x)							    \
-	do {								    \
-		printf("exception in %s at line %d\n", __FILE__, __LINE__); \
-		exception(x);						    \
-	} while (0)
-#else
-#define	EXCEPTION(x)	exception(x)
-#endif
-
-#endif				/* _LOCORE */
-
-#endif				/* _EXCEPTION_H_ */
diff --git a/sys/gnu/arch/i386/fpemul/files.fpemul b/sys/gnu/arch/i386/fpemul/files.fpemul
deleted file mode 100644
index 4fa58f1db00..00000000000
--- a/sys/gnu/arch/i386/fpemul/files.fpemul
+++ /dev/null
@@ -1,33 +0,0 @@
-#	$OpenBSD: files.fpemul,v 1.1 1996/08/27 10:32:43 downsj Exp $
-
-file	gnu/arch/i386/fpemul/div_small.s	gpl_math_emulate
-file	gnu/arch/i386/fpemul/errors.c		gpl_math_emulate
-file	gnu/arch/i386/fpemul/fpu_arith.c	gpl_math_emulate
-file	gnu/arch/i386/fpemul/fpu_aux.c		gpl_math_emulate
-file	gnu/arch/i386/fpemul/fpu_entry.c	gpl_math_emulate
-file	gnu/arch/i386/fpemul/fpu_etc.c		gpl_math_emulate
-file	gnu/arch/i386/fpemul/fpu_trig.c		gpl_math_emulate
-file	gnu/arch/i386/fpemul/get_address.c	gpl_math_emulate
-file	gnu/arch/i386/fpemul/load_store.c	gpl_math_emulate
-file	gnu/arch/i386/fpemul/poly_2xm1.c	gpl_math_emulate
-file	gnu/arch/i386/fpemul/poly_atan.c	gpl_math_emulate
-file	gnu/arch/i386/fpemul/poly_div.s		gpl_math_emulate
-file	gnu/arch/i386/fpemul/poly_l2.c		gpl_math_emulate
-file	gnu/arch/i386/fpemul/poly_mul64.s	gpl_math_emulate
-file	gnu/arch/i386/fpemul/poly_sin.c		gpl_math_emulate
-file	gnu/arch/i386/fpemul/poly_tan.c		gpl_math_emulate
-file	gnu/arch/i386/fpemul/polynomial.s	gpl_math_emulate
-file	gnu/arch/i386/fpemul/reg_add_sub.c	gpl_math_emulate
-file	gnu/arch/i386/fpemul/reg_compare.c	gpl_math_emulate
-file	gnu/arch/i386/fpemul/reg_constant.c	gpl_math_emulate
-file	gnu/arch/i386/fpemul/reg_div.s		gpl_math_emulate
-file	gnu/arch/i386/fpemul/reg_ld_str.c	gpl_math_emulate
-file	gnu/arch/i386/fpemul/reg_mul.c		gpl_math_emulate
-file	gnu/arch/i386/fpemul/reg_norm.s		gpl_math_emulate
-file	gnu/arch/i386/fpemul/reg_round.s	gpl_math_emulate
-file	gnu/arch/i386/fpemul/reg_u_add.s	gpl_math_emulate
-file	gnu/arch/i386/fpemul/reg_u_div.s	gpl_math_emulate
-file	gnu/arch/i386/fpemul/reg_u_mul.s	gpl_math_emulate
-file	gnu/arch/i386/fpemul/reg_u_sub.s	gpl_math_emulate
-file	gnu/arch/i386/fpemul/wm_shrx.s		gpl_math_emulate
-file	gnu/arch/i386/fpemul/wm_sqrt.s		gpl_math_emulate
diff --git a/sys/gnu/arch/i386/fpemul/fpu_arith.c b/sys/gnu/arch/i386/fpemul/fpu_arith.c
deleted file mode 100644
index 90f64c61236..00000000000
--- a/sys/gnu/arch/i386/fpemul/fpu_arith.c
+++ /dev/null
@@ -1,237 +0,0 @@
-/*	$OpenBSD: fpu_arith.c,v 1.2 2003/07/30 21:30:31 jason Exp $	*/
-/*
- *  fpu_arith.c
- *
- * Code to implement the FPU register/register arithmetic instructions
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: fpu_arith.c,v 1.4 1995/05/30 07:57:43 rgrimes Exp $
- *
- */
-
-
-
-
-#include <sys/param.h>
-#include <sys/proc.h>
-#include <sys/user.h>
-#include <machine/cpu.h>
-#include <machine/pcb.h>
-
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/fpu_system.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-
-
-void
-fadd__()
-{
-	/* fadd st,st(i) */
-	reg_add(FPU_st0_ptr, &st(FPU_rm), FPU_st0_ptr, control_word);
-}
-
-
-void
-fmul__()
-{
-	/* fmul st,st(i) */
-	reg_mul(FPU_st0_ptr, &st(FPU_rm), FPU_st0_ptr, control_word);
-}
-
-
-
-void
-fsub__()
-{
-	/* fsub st,st(i) */
-	reg_sub(FPU_st0_ptr, &st(FPU_rm), FPU_st0_ptr, control_word);
-}
-
-
-void
-fsubr_()
-{
-	/* fsubr st,st(i) */
-	reg_sub(&st(FPU_rm), FPU_st0_ptr, FPU_st0_ptr, control_word);
-}
-
-
-void
-fdiv__()
-{
-	/* fdiv st,st(i) */
-	reg_div(FPU_st0_ptr, &st(FPU_rm), FPU_st0_ptr, control_word);
-}
-
-
-void
-fdivr_()
-{
-	/* fdivr st,st(i) */
-	reg_div(&st(FPU_rm), FPU_st0_ptr, FPU_st0_ptr, control_word);
-}
-
-
-
-void
-fadd_i()
-{
-	/* fadd st(i),st */
-	reg_add(FPU_st0_ptr, &st(FPU_rm), &st(FPU_rm), control_word);
-}
-
-
-void
-fmul_i()
-{
-	/* fmul st(i),st */
-	reg_mul(&st(FPU_rm), FPU_st0_ptr, &st(FPU_rm), control_word);
-}
-
-
-void
-fsubri()
-{
-	/* fsubr st(i),st */
-	/* This is the sense of the 80486 manual reg_sub(&st(FPU_rm),
-	 * FPU_st0_ptr, &st(FPU_rm), control_word); */
-	reg_sub(FPU_st0_ptr, &st(FPU_rm), &st(FPU_rm), control_word);
-}
-
-
-void
-fsub_i()
-{
-	/* fsub st(i),st */
-	/* This is the sense of the 80486 manual reg_sub(FPU_st0_ptr,
-	 * &st(FPU_rm), &st(FPU_rm), control_word); */
-	reg_sub(&st(FPU_rm), FPU_st0_ptr, &st(FPU_rm), control_word);
-}
-
-
-void
-fdivri()
-{
-	/* fdivr st(i),st */
-	reg_div(FPU_st0_ptr, &st(FPU_rm), &st(FPU_rm), control_word);
-}
-
-
-void
-fdiv_i()
-{
-	/* fdiv st(i),st */
-	reg_div(&st(FPU_rm), FPU_st0_ptr, &st(FPU_rm), control_word);
-}
-
-
-
-void
-faddp_()
-{
-	/* faddp st(i),st */
-	reg_add(FPU_st0_ptr, &st(FPU_rm), &st(FPU_rm), control_word);
-	pop();
-}
-
-
-void
-fmulp_()
-{
-	/* fmulp st(i),st */
-	reg_mul(&st(FPU_rm), FPU_st0_ptr, &st(FPU_rm), control_word);
-	pop();
-}
-
-
-
-void
-fsubrp()
-{
-	/* fsubrp st(i),st */
-	/* This is the sense of the 80486 manual reg_sub(&st(FPU_rm),
-	 * FPU_st0_ptr, &st(FPU_rm), control_word); */
-	reg_sub(FPU_st0_ptr, &st(FPU_rm), &st(FPU_rm), control_word);
-	pop();
-}
-
-
-void
-fsubp_()
-{
-	/* fsubp st(i),st */
-	/* This is the sense of the 80486 manual reg_sub(FPU_st0_ptr,
-	 * &st(FPU_rm), &st(FPU_rm), control_word); */
-	reg_sub(&st(FPU_rm), FPU_st0_ptr, &st(FPU_rm), control_word);
-	pop();
-}
-
-
-void
-fdivrp()
-{
-	/* fdivrp st(i),st */
-	reg_div(FPU_st0_ptr, &st(FPU_rm), &st(FPU_rm), control_word);
-	pop();
-}
-
-
-void
-fdivp_()
-{
-	/* fdivp st(i),st */
-	reg_div(&st(FPU_rm), FPU_st0_ptr, &st(FPU_rm), control_word);
-	pop();
-}
diff --git a/sys/gnu/arch/i386/fpemul/fpu_asm.h b/sys/gnu/arch/i386/fpemul/fpu_asm.h
deleted file mode 100644
index 5d3559e66f6..00000000000
--- a/sys/gnu/arch/i386/fpemul/fpu_asm.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/*	$OpenBSD: fpu_asm.h,v 1.2 2002/10/12 07:12:58 pvalchev Exp $	*/
-/*
- *  fpu_asm.h
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *    $FreeBSD: fpu_asm.h,v 1.3 1994/06/10 07:44:16 rich Exp $
- *
- */
-
-#ifndef _FPU_ASM_H_
-#define _FPU_ASM_H_
-
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-
-#define	EXCEPTION	_C_LABEL(exception)
-
-
-#define PARAM1	8(%ebp)
-#define	PARAM2	12(%ebp)
-#define	PARAM3	16(%ebp)
-#define	PARAM4	20(%ebp)
-
-#define SIGL_OFFSET 8
-#define SIGN(x)	(x)
-#define	TAG(x)	1(x)
-#define	EXP(x)	4(x)
-#define SIG(x)	SIGL_OFFSET/**/(x)
-#define	SIGL(x)	SIGL_OFFSET/**/(x)
-#define	SIGH(x)	12(x)
-
-#endif				/* _FPU_ASM_H_ */
diff --git a/sys/gnu/arch/i386/fpemul/fpu_aux.c b/sys/gnu/arch/i386/fpemul/fpu_aux.c
deleted file mode 100644
index 7f216eff194..00000000000
--- a/sys/gnu/arch/i386/fpemul/fpu_aux.c
+++ /dev/null
@@ -1,234 +0,0 @@
-/*	$OpenBSD: fpu_aux.c,v 1.2 2003/07/30 21:30:31 jason Exp $	*/
-/*
- *  fpu_aux.c
- *
- * Code to implement some of the FPU auxiliary instructions.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: fpu_aux.c,v 1.4 1995/12/14 09:50:21 phk Exp $
- *
- */
-
-
-#include <sys/param.h>
-#include <sys/proc.h>
-#include <sys/user.h>
-#include <machine/cpu.h>
-#include <machine/pcb.h>
-
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/fpu_system.h>
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/status_w.h>
-
-
-static void
-fclex(void)
-{
-	status_word &= ~(SW_Backward | SW_Summary | SW_Stack_Fault | SW_Precision |
-	    SW_Underflow | SW_Overflow | SW_Zero_Div | SW_Denorm_Op |
-	    SW_Invalid);
-	FPU_entry_eip = ip_offset;	/* We want no net effect */
-}
-/* Needs to be externally visible */
-void
-finit()
-{
-	int     r;
-	control_word = 0x037f;
-	status_word = 0;
-	top = 0;		/* We don't keep top in the status word
-				 * internally. */
-	for (r = 0; r < 8; r++) {
-		regs[r].tag = TW_Empty;
-	}
-	FPU_entry_eip = ip_offset = 0;
-}
-
-static FUNC finit_table[] = {
-	Un_impl, Un_impl, fclex, finit, Un_impl, Un_impl, Un_impl, Un_impl
-};
-
-void
-finit_()
-{
-	(finit_table[FPU_rm]) ();
-}
-
-
-static void
-fstsw_ax(void)
-{
-
-	status_word &= ~SW_Top;
-	status_word |= (top & 7) << SW_Top_Shift;
-
-	*(short *) &FPU_EAX = status_word;
-
-}
-
-static FUNC fstsw_table[] = {
-	fstsw_ax, Un_impl, Un_impl, Un_impl, Un_impl, Un_impl, Un_impl, Un_impl
-};
-
-void
-fstsw_()
-{
-	(fstsw_table[FPU_rm]) ();
-}
-
-
-
-static void
-fnop(void)
-{
-}
-
-static FUNC    fp_nop_table[] = {
-	fnop, Un_impl, Un_impl, Un_impl, Un_impl, Un_impl, Un_impl, Un_impl
-};
-
-void
-fp_nop()
-{
-	(fp_nop_table[FPU_rm]) ();
-}
-
-
-void
-fld_i_()
-{
-	FPU_REG *st_new_ptr;
-
-	if (STACK_OVERFLOW) {
-		stack_overflow();
-		return;
-	}
-	/* fld st(i) */
-	if (NOT_EMPTY(FPU_rm)) {
-		reg_move(&st(FPU_rm), st_new_ptr);
-		push();
-	} else {
-		if (control_word & EX_Invalid) {
-			/* The masked response */
-			push();
-			stack_underflow();
-		} else
-			EXCEPTION(EX_StackUnder);
-	}
-
-}
-
-
-void
-fxch_i()
-{
-	/* fxch st(i) */
-	FPU_REG t;
-	register FPU_REG *sti_ptr = &st(FPU_rm);
-
-	if (FPU_st0_tag == TW_Empty) {
-		if (sti_ptr->tag == TW_Empty) {
-			stack_underflow();
-			stack_underflow_i(FPU_rm);
-			return;
-		}
-		reg_move(sti_ptr, FPU_st0_ptr);
-		stack_underflow_i(FPU_rm);
-		return;
-	}
-	if (sti_ptr->tag == TW_Empty) {
-		reg_move(FPU_st0_ptr, sti_ptr);
-		stack_underflow();
-		return;
-	}
-	reg_move(FPU_st0_ptr, &t);
-	reg_move(sti_ptr, FPU_st0_ptr);
-	reg_move(&t, sti_ptr);
-}
-
-
-void
-ffree_()
-{
-	/* ffree st(i) */
-	st(FPU_rm).tag = TW_Empty;
-}
-
-
-void
-ffreep()
-{
-	/* ffree st(i) + pop - unofficial code */
-	st(FPU_rm).tag = TW_Empty;
-	pop();
-}
-
-
-void
-fst_i_()
-{
-	/* fst st(i) */
-	reg_move(FPU_st0_ptr, &st(FPU_rm));
-}
-
-
-void
-fstp_i()
-{
-	/* fstp st(i) */
-	reg_move(FPU_st0_ptr, &st(FPU_rm));
-	pop();
-}
diff --git a/sys/gnu/arch/i386/fpemul/fpu_emu.h b/sys/gnu/arch/i386/fpemul/fpu_emu.h
deleted file mode 100644
index e6e0890a99d..00000000000
--- a/sys/gnu/arch/i386/fpemul/fpu_emu.h
+++ /dev/null
@@ -1,189 +0,0 @@
-/*	$OpenBSD: fpu_emu.h,v 1.1 1996/08/27 10:32:46 downsj Exp $	*/
-/*
- *  fpu_emu.h
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: fpu_emu.h,v 1.3 1994/06/10 07:44:19 rich Exp $
- *
- */
-
-
-#ifndef _FPU_EMU_H_
-#define _FPU_EMU_H_
-
-/*
- * Define DENORM_OPERAND to make the emulator detect denormals
- * and use the denormal flag of the status word. Note: this only
- * affects the flag and corresponding interrupt, the emulator
- * will always generate denormals and operate upon them as required.
- */
-#define DENORM_OPERAND
-
-/*
- * Define PECULIAR_486 to get a closer approximation to 80486 behaviour,
- * rather than behaviour which appears to be cleaner.
- * This is a matter of opinion: for all I know, the 80486 may simply
- * be complying with the IEEE spec. Maybe one day I'll get to see the
- * spec...
- */
-#define PECULIAR_486
-
-#ifdef _LOCORE
-#include <gnu/arch/i386/fpemul/fpu_asm.h>
-#define	Const(x)	$/**/x
-#else
-#define	Const(x)	x
-#endif
-
-#define EXP_BIAS	Const(0)
-#define EXP_OVER	Const(0x4000)	/* smallest invalid large exponent */
-#define	EXP_UNDER	Const(-0x3fff)	/* largest invalid small exponent */
-
-#define SIGN_POS	Const(0)
-#define SIGN_NEG	Const(1)
-
-/* Keep the order TW_Valid, TW_Zero, TW_Denormal */
-#define TW_Valid	Const(0)/* valid */
-#define TW_Zero		Const(1)/* zero */
-/* The following fold to 2 (Special) in the Tag Word */
-#define TW_Denormal     Const(4)/* De-normal */
-#define TW_Infinity	Const(5)/* + or - infinity */
-#define	TW_NaN		Const(6)/* Not a Number */
-
-#define TW_Empty	Const(7)/* empty */
-
- /* #define TW_FPU_Interrupt Const(0x80) *//* Signals an interrupt */
-
-
-#ifndef _LOCORE
-
-#include <sys/types.h>
-#include <gnu/arch/i386/fpemul/math_emu.h>
-
-#ifdef PARANOID
-extern char emulating;
-#define REENTRANT_CHECK(state) emulating = (state)
-#define ON 1
-#define OFF 0
-#else
-#define REENTRANT_CHECK(state)
-#endif				/* PARANOID */
-
-typedef void (*FUNC) (void);
-typedef struct fpu_reg FPU_REG;
-
-#define	st(x)	( regs[((top+x) &7 )] )
-
-#define	STACK_OVERFLOW	(st_new_ptr = &st(-1), st_new_ptr->tag != TW_Empty)
-#define	NOT_EMPTY(i)	(st(i).tag != TW_Empty)
-#define	NOT_EMPTY_0	(FPU_st0_tag ^ TW_Empty)
-
-extern unsigned char FPU_rm;
-
-extern char FPU_st0_tag;
-extern FPU_REG *FPU_st0_ptr;
-
-extern void *FPU_data_address;
-
-extern FPU_REG FPU_loaded_data;
-
-#define pop()	{ FPU_st0_ptr->tag = TW_Empty; top++; }
-
-/* push() does not affect the tags */
-#define push()	{ top--; FPU_st0_ptr = st_new_ptr; }
-
-
-#define reg_move(x, y) { \
-		 *(short *)&((y)->sign) = *(short *)&((x)->sign); \
-		 *(long *)&((y)->exp) = *(long *)&((x)->exp); \
-		 *(long long *)&((y)->sigl) = *(long long *)&((x)->sigl); }
-
-
-/*----- Prototypes for functions written in assembler -----*/
-/* extern void reg_move(FPU_REG *a, FPU_REG *b); */
-
-extern void mul64(long long *a, long long *b, long long *result);
-extern void poly_div2(long long *x);
-extern void poly_div4(long long *x);
-extern void poly_div16(long long *x);
-extern void
-polynomial(unsigned accum[], unsigned x[],
-    unsigned short terms[][4], int n);
-	extern void normalize(FPU_REG * x);
-	extern void normalize_nuo(FPU_REG * x);
-	extern void reg_div(FPU_REG * arg1, FPU_REG * arg2, FPU_REG * answ,
-            unsigned int control_w);
-	extern void reg_u_sub(FPU_REG * arg1, FPU_REG * arg2, FPU_REG * answ,
-            unsigned int control_w);
-	extern void reg_u_mul(FPU_REG * arg1, FPU_REG * arg2, FPU_REG * answ,
-            unsigned int control_w);
-	extern void reg_u_div(FPU_REG * arg1, FPU_REG * arg2, FPU_REG * answ,
-            unsigned int control_w);
-	extern void reg_u_add(FPU_REG * arg1, FPU_REG * arg2, FPU_REG * answ,
-            unsigned int control_w);
-	extern void wm_sqrt(FPU_REG * n, unsigned int control_w);
-	extern unsigned shrx(void *l, unsigned x);
-	extern unsigned shrxs(void *v, unsigned x);
-	extern unsigned long div_small(unsigned long long *x, unsigned long y);
-	extern void round_reg(FPU_REG * arg, unsigned int extent,
-            unsigned int control_w);
-
-#ifndef MAKING_PROTO
-#include <gnu/arch/i386/fpemul/fpu_proto.h>
-#endif
-
-#endif				/* _LOCORE */
-
-#endif				/* _FPU_EMU_H_ */
diff --git a/sys/gnu/arch/i386/fpemul/fpu_entry.c b/sys/gnu/arch/i386/fpemul/fpu_entry.c
deleted file mode 100644
index 51f3c5e68e4..00000000000
--- a/sys/gnu/arch/i386/fpemul/fpu_entry.c
+++ /dev/null
@@ -1,479 +0,0 @@
-/*	$OpenBSD: fpu_entry.c,v 1.5 2003/07/31 17:41:56 jason Exp $	*/
-/*
- *  fpu_entry.c
- *
- * The entry function for wm-FPU-emu
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *  $FreeBSD: fpu_entry.c,v 1.8 1995/12/14 20:21:49 bde Exp $
- *
- */
-
-/*---------------------------------------------------------------------------+
- | Note:                                                                     |
- |    The file contains code which accesses user memory.                     |
- |    Emulator static data may change when user memory is accessed, due to   |
- |    other processes using the emulator while swapping is in progress.      |
- +---------------------------------------------------------------------------*/
-
-/*---------------------------------------------------------------------------+
- | math_emulate() is the sole entry point for wm-FPU-emu                     |
- +---------------------------------------------------------------------------*/
-
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/proc.h>
-#include <sys/kernel.h>
-#include <sys/user.h>
-
-#include <machine/cpu.h>
-#include <machine/pcb.h>
-
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/fpu_system.h>
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-#include <gnu/arch/i386/fpemul/status_w.h>
-
-
-#define __BAD__ Un_impl		/* Not implemented */
-
-#define FPU_LOOKAHEAD   1       /* For performance boost */
-
-#if FPU_LOOKAHEAD != 0          /* I think thet we have to limit the */
-#define LOOKAHEAD_LIMIT	7	/* Max number of lookahead instructions*/
-#endif                          /* Or else a prog consisting of a million */
-                                /* fnops will spend all its time in kernel*/
-
-#ifndef NO_UNDOC_CODE		/* Un-documented FPU op-codes supported by
-				 * default. */
-
-/* WARNING: These codes are not documented by Intel in their 80486 manual
-   and may not work on FPU clones or later Intel FPUs. */
-
-/* Changes to support the un-doc codes provided by Linus Torvalds. */
-
-#define _d9_d8_ fstp_i		/* unofficial code (19) */
-#define _dc_d0_ fcom_st		/* unofficial code (14) */
-#define _dc_d8_ fcompst		/* unofficial code (1c) */
-#define _dd_c8_ fxch_i		/* unofficial code (0d) */
-#define _de_d0_ fcompst		/* unofficial code (16) */
-#define _df_c0_ ffreep		/* unofficial code (07) ffree + pop */
-#define _df_c8_ fxch_i		/* unofficial code (0f) */
-#define _df_d0_ fstp_i		/* unofficial code (17) */
-#define _df_d8_ fstp_i		/* unofficial code (1f) */
-
-static FUNC st_instr_table[64] = {
-	fadd__, fld_i_, __BAD__, __BAD__, fadd_i, ffree_, faddp_, _df_c0_,
-	fmul__, fxch_i, __BAD__, __BAD__, fmul_i, _dd_c8_, fmulp_, _df_c8_,
-	fcom_st, fp_nop, __BAD__, __BAD__, _dc_d0_, fst_i_, _de_d0_, _df_d0_,
-	fcompst, _d9_d8_, __BAD__, __BAD__, _dc_d8_, fstp_i, fcompp, _df_d8_,
-	fsub__, fp_etc, __BAD__, finit_, fsubri, fucom_, fsubrp, fstsw_,
-	fsubr_, fconst, fucompp, __BAD__, fsub_i, fucomp, fsubp_, __BAD__,
-	fdiv__, trig_a, __BAD__, __BAD__, fdivri, __BAD__, fdivrp, __BAD__,
-	fdivr_, trig_b, __BAD__, __BAD__, fdiv_i, __BAD__, fdivp_, __BAD__,
-};
-#else				/* Support only documented FPU op-codes */
-
-static FUNC st_instr_table[64] = {
-	fadd__, fld_i_, __BAD__, __BAD__, fadd_i, ffree_, faddp_, __BAD__,
-	fmul__, fxch_i, __BAD__, __BAD__, fmul_i, __BAD__, fmulp_, __BAD__,
-	fcom_st, fp_nop, __BAD__, __BAD__, __BAD__, fst_i_, __BAD__, __BAD__,
-	fcompst, __BAD__, __BAD__, __BAD__, __BAD__, fstp_i, fcompp, __BAD__,
-	fsub__, fp_etc, __BAD__, finit_, fsubri, fucom_, fsubrp, fstsw_,
-	fsubr_, fconst, fucompp, __BAD__, fsub_i, fucomp, fsubp_, __BAD__,
-	fdiv__, trig_a, __BAD__, __BAD__, fdivri, __BAD__, fdivrp, __BAD__,
-	fdivr_, trig_b, __BAD__, __BAD__, fdiv_i, __BAD__, fdivp_, __BAD__,
-};
-#endif				/* NO_UNDOC_CODE */
-
-
-#define _NONE_ 0		/* Take no special action */
-#define _REG0_ 1		/* Need to check for not empty st(0) */
-#define _REGI_ 2		/* Need to check for not empty st(0) and
-				 * st(rm) */
-#define _REGi_ 0		/* Uses st(rm) */
-#define _PUSH_ 3		/* Need to check for space to push onto stack */
-#define _null_ 4		/* Function illegal or not implemented */
-#define _REGIi 5		/* Uses st(0) and st(rm), result to st(rm) */
-#define _REGIp 6		/* Uses st(0) and st(rm), result to st(rm)
-				 * then pop */
-#define _REGIc 0		/* Compare st(0) and st(rm) */
-#define _REGIn 0		/* Uses st(0) and st(rm), but handle checks
-				 * later */
-
-#ifndef NO_UNDOC_CODE
-
-/* Un-documented FPU op-codes supported by default. (see above) */
-
-static unsigned char type_table[64] = {
-	_REGI_, _NONE_, _null_, _null_, _REGIi, _REGi_, _REGIp, _REGi_,
-	_REGI_, _REGIn, _null_, _null_, _REGIi, _REGI_, _REGIp, _REGI_,
-	_REGIc, _NONE_, _null_, _null_, _REGIc, _REG0_, _REGIc, _REG0_,
-	_REGIc, _REG0_, _null_, _null_, _REGIc, _REG0_, _REGIc, _REG0_,
-	_REGI_, _NONE_, _null_, _NONE_, _REGIi, _REGIc, _REGIp, _NONE_,
-	_REGI_, _NONE_, _REGIc, _null_, _REGIi, _REGIc, _REGIp, _null_,
-	_REGI_, _NONE_, _null_, _null_, _REGIi, _null_, _REGIp, _null_,
-	_REGI_, _NONE_, _null_, _null_, _REGIi, _null_, _REGIp, _null_
-};
-#else				/* Support only documented FPU op-codes */
-
-static unsigned char type_table[64] = {
-	_REGI_, _NONE_, _null_, _null_, _REGIi, _REGi_, _REGIp, _null_,
-	_REGI_, _REGIn, _null_, _null_, _REGIi, _null_, _REGIp, _null_,
-	_REGIc, _NONE_, _null_, _null_, _null_, _REG0_, _null_, _null_,
-	_REGIc, _null_, _null_, _null_, _null_, _REG0_, _REGIc, _null_,
-	_REGI_, _NONE_, _null_, _NONE_, _REGIi, _REGIc, _REGIp, _NONE_,
-	_REGI_, _NONE_, _REGIc, _null_, _REGIi, _REGIc, _REGIp, _null_,
-	_REGI_, _NONE_, _null_, _null_, _REGIi, _null_, _REGIp, _null_,
-	_REGI_, _NONE_, _null_, _null_, _REGIi, _null_, _REGIp, _null_
-};
-#endif				/* NO_UNDOC_CODE */
-
-/* Be careful when using any of these global variables...
-   they might change if swapping is triggered */
-unsigned char FPU_rm;
-char    FPU_st0_tag;
-FPU_REG *FPU_st0_ptr;
-
-#ifdef PARANOID
-char    emulating = 0;
-#endif				/* PARANOID */
-
-int
-math_emulate(struct trapframe * tframe)
-{
-
-	unsigned char FPU_modrm;
-	unsigned short code;
-#ifdef LOOKAHEAD_LIMIT
-	int lookahead_limit = LOOKAHEAD_LIMIT;
-#endif
-
-#ifdef PARANOID
-	if (emulating) {
-		printf("ERROR: wm-FPU-emu is not RE-ENTRANT!\n");
-	}
-	REENTRANT_CHECK(ON);
-#endif				/* PARANOID */
-
-	if (!USERMODE(tframe->tf_cs, tframe->tf_eflags))
-		panic("math emulator called from supervisor mode");
-
-	/* ever used fp? */
-	if ((curproc->p_md.md_flags & MDP_USEDFPU) == 0) {
-		curproc->p_md.md_flags |= MDP_USEDFPU;
-		finit();
-		control_word = __INITIAL_NPXCW__;
-	}
-
-	FPU_info = tframe;
-	FPU_ORIG_EIP = FPU_EIP;	/* --pink-- */
-
-	FPU_lookahead = FPU_LOOKAHEAD;
-	if (curproc->p_flag & P_TRACED)
-		FPU_lookahead = 0;
-
-do_another_FPU_instruction:
-
-	REENTRANT_CHECK(OFF);
-	copyin((u_short *)FPU_EIP, &code, sizeof(code));
-	REENTRANT_CHECK(ON);
-	if ((code & 0xff) == 0x9b) {	/* fwait */
-		if (status_word & SW_Summary)
-			goto do_the_FPU_interrupt;
-		else {
-			FPU_EIP++;
-			goto FPU_instruction_done;
-		}
-	}
-	if (status_word & SW_Summary) {
-		/* Ignore the error for now if the current instruction is a
-		 * no-wait control instruction */
-		/* The 80486 manual contradicts itself on this topic, so I use
-		 * the following list of such instructions until I can check
-		 * on a real 80486: fninit, fnstenv, fnsave, fnstsw, fnstenv,
-		 * fnclex. */
-		if (!((((code & 0xf803) == 0xe003) ||	/* fnclex, fninit,
-							 * fnstsw */
-			    (((code & 0x3003) == 0x3001) &&	/* fnsave, fnstcw,
-								 * fnstenv, fnstsw */
-				((code & 0xc000) != 0xc000))))) {
-			/* This is a guess about what a real FPU might do to
-			 * this bit: */
-/*	  status_word &= ~SW_Summary; ****/
-
-			/* We need to simulate the action of the kernel to FPU
-			 * interrupts here. Currently, the "real FPU" part of
-			 * the kernel (0.99.10) clears the exception flags,
-			 * sets the registers to empty, and passes information
-			 * back to the interrupted process via the cs selector
-			 * and operand selector, so we do the same. */
-	do_the_FPU_interrupt:
-			cs_selector &= 0xffff0000;
-			cs_selector |= (status_word & ~SW_Top) | ((top & 7) << SW_Top_Shift);
-			operand_selector = tag_word();
-			status_word = 0;
-			top = 0;
-			{
-				int     r;
-				for (r = 0; r < 8; r++) {
-					regs[r].tag = TW_Empty;
-				}
-			}
-			FPU_EIP = FPU_ORIG_EIP;
-			REENTRANT_CHECK(OFF);
-			return (SIGFPE);
-		}
-	}
-	FPU_entry_eip = FPU_ORIG_EIP = FPU_EIP;
-
-	if ((code & 0xff) == 0x66) {	/* size prefix */
-		FPU_EIP++;
-		REENTRANT_CHECK(OFF);
-		copyin((u_short *)FPU_EIP, &code, sizeof(code));
-		REENTRANT_CHECK(ON);
-	}
-	FPU_EIP += 2;
-
-	FPU_modrm = code >> 8;
-	FPU_rm = FPU_modrm & 7;
-
-	if (FPU_modrm < 0300) {
-		/* All of these instructions use the mod/rm byte to get a data
-		 * address */
-		get_address(FPU_modrm);
-		if (!(code & 1)) {
-			unsigned short status1 = status_word;
-			FPU_st0_ptr = &st(0);
-			FPU_st0_tag = FPU_st0_ptr->tag;
-
-			/* Stack underflow has priority */
-			if (NOT_EMPTY_0) {
-				switch ((code >> 1) & 3) {
-				case 0:
-					reg_load_single();
-					break;
-				case 1:
-					reg_load_int32();
-					break;
-				case 2:
-					reg_load_double();
-					break;
-				case 3:
-					reg_load_int16();
-					break;
-				}
-
-				/* No more access to user memory, it is safe
-				 * to use static data now */
-				FPU_st0_ptr = &st(0);
-				FPU_st0_tag = FPU_st0_ptr->tag;
-
-				/* NaN operands have the next priority. */
-				/* We have to delay looking at st(0) until
-				 * after loading the data, because that data
-				 * might contain an SNaN */
-				if ((FPU_st0_tag == TW_NaN) ||
-				    (FPU_loaded_data.tag == TW_NaN)) {
-					/* Restore the status word; we might
-					 * have loaded a denormal. */
-					status_word = status1;
-					if ((FPU_modrm & 0x30) == 0x10) {
-						/* fcom or fcomp */
-						EXCEPTION(EX_Invalid);
-						setcc(SW_C3 | SW_C2 | SW_C0);
-						if (FPU_modrm & 0x08)
-							pop();	/* fcomp, so we pop. */
-					} else
-						real_2op_NaN(FPU_st0_ptr, &FPU_loaded_data, FPU_st0_ptr);
-					goto reg_mem_instr_done;
-				}
-				switch ((FPU_modrm >> 3) & 7) {
-				case 0:	/* fadd */
-					reg_add(FPU_st0_ptr, &FPU_loaded_data, FPU_st0_ptr, control_word);
-					break;
-				case 1:	/* fmul */
-					reg_mul(FPU_st0_ptr, &FPU_loaded_data, FPU_st0_ptr, control_word);
-					break;
-				case 2:	/* fcom */
-					compare_st_data();
-					break;
-				case 3:	/* fcomp */
-					compare_st_data();
-					pop();
-					break;
-				case 4:	/* fsub */
-					reg_sub(FPU_st0_ptr, &FPU_loaded_data, FPU_st0_ptr, control_word);
-					break;
-				case 5:	/* fsubr */
-					reg_sub(&FPU_loaded_data, FPU_st0_ptr, FPU_st0_ptr, control_word);
-					break;
-				case 6:	/* fdiv */
-					reg_div(FPU_st0_ptr, &FPU_loaded_data, FPU_st0_ptr, control_word);
-					break;
-				case 7:	/* fdivr */
-					if (FPU_st0_tag == TW_Zero)
-						status_word = status1;	/* Undo any denorm tag,
-									 * zero-divide has
-									 * priority. */
-					reg_div(&FPU_loaded_data, FPU_st0_ptr, FPU_st0_ptr, control_word);
-					break;
-				}
-			} else {
-				if ((FPU_modrm & 0x30) == 0x10) {
-					/* The instruction is fcom or fcomp */
-					EXCEPTION(EX_StackUnder);
-					setcc(SW_C3 | SW_C2 | SW_C0);
-					if (FPU_modrm & 0x08)
-						pop();	/* fcomp, Empty or not,
-							 * we pop. */
-				} else
-					stack_underflow();
-			}
-		} else {
-			load_store_instr(((FPU_modrm & 0x38) | (code & 6)) >> 1);
-		}
-
-reg_mem_instr_done:
-
-		data_operand_offset = (unsigned long) FPU_data_address;
-	} else {
-		/* None of these instructions access user memory */
-		unsigned char instr_index = (FPU_modrm & 0x38) | (code & 7);
-
-		FPU_st0_ptr = &st(0);
-		FPU_st0_tag = FPU_st0_ptr->tag;
-		switch (type_table[(int) instr_index]) {
-		case _NONE_:	/* also _REGIc: _REGIn */
-			break;
-		case _REG0_:
-			if (!NOT_EMPTY_0) {
-				stack_underflow();
-				goto FPU_instruction_done;
-			}
-			break;
-		case _REGIi:
-			if (!NOT_EMPTY_0 || !NOT_EMPTY(FPU_rm)) {
-				stack_underflow_i(FPU_rm);
-				goto FPU_instruction_done;
-			}
-			break;
-		case _REGIp:
-			if (!NOT_EMPTY_0 || !NOT_EMPTY(FPU_rm)) {
-				stack_underflow_i(FPU_rm);
-				pop();
-				goto FPU_instruction_done;
-			}
-			break;
-		case _REGI_:
-			if (!NOT_EMPTY_0 || !NOT_EMPTY(FPU_rm)) {
-				stack_underflow();
-				goto FPU_instruction_done;
-			}
-			break;
-		case _PUSH_:	/* Only used by the fld st(i) instruction */
-			break;
-		case _null_:
-			Un_impl();
-			goto FPU_instruction_done;
-		default:
-			EXCEPTION(EX_INTERNAL | 0x111);
-			goto FPU_instruction_done;
-		}
-		(*st_instr_table[(int) instr_index]) ();
-	}
-
-FPU_instruction_done:
-
-	ip_offset = FPU_entry_eip;
-	code = swap16(code);
-	*(1 + (unsigned short *) &cs_selector) = code & 0x7ff;
-
-#ifdef DEBUG
-	REENTRANT_CHECK(OFF);
-	emu_printall();
-	REENTRANT_CHECK(ON);
-#endif				/* DEBUG */
-#ifdef LOOKAHEAD_LIMIT
-if (--lookahead_limit)
-#endif
-	if (FPU_lookahead) {
-		unsigned char next;
-
-		/* (This test should generate no machine code) */
-		while (1) {
-			REENTRANT_CHECK(OFF);
-			copyin((u_char *)FPU_EIP, &next, sizeof(u_char));
-			REENTRANT_CHECK(ON);
-			if (((next & 0xf8) == 0xd8) || (next == 0x9b)) {	/* fwait */
-				goto do_another_FPU_instruction;
-			} else
-				if (next == 0x66) {	/* size prefix */
-					REENTRANT_CHECK(OFF);
-					copyin((u_char *)FPU_EIP + 1, &next,
-					    sizeof(u_char));
-					REENTRANT_CHECK(ON);
-					if ((next & 0xf8) == 0xd8) {
-						FPU_EIP++;
-						goto do_another_FPU_instruction;
-					}
-				}
-			break;
-		}
-	}
-	REENTRANT_CHECK(OFF);
-	return (0);		/* --pink-- */
-}
diff --git a/sys/gnu/arch/i386/fpemul/fpu_etc.c b/sys/gnu/arch/i386/fpemul/fpu_etc.c
deleted file mode 100644
index 442553411af..00000000000
--- a/sys/gnu/arch/i386/fpemul/fpu_etc.c
+++ /dev/null
@@ -1,177 +0,0 @@
-/*	$OpenBSD: fpu_etc.c,v 1.2 2003/07/30 21:30:31 jason Exp $	*/
-/*
- *  fpu_etc.c
- *
- * Implement a few FPU instructions.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *    $FreeBSD: fpu_etc.c,v 1.3 1994/06/10 07:44:24 rich Exp $
- *
- */
-
-#include <sys/param.h>
-#include <sys/proc.h>
-#include <sys/user.h>
-#include <machine/cpu.h>
-#include <machine/pcb.h>
-
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/fpu_system.h>
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/status_w.h>
-#include <gnu/arch/i386/fpemul/reg_constant.h>
-
-
-static void
-fchs(void)
-{
-	if (NOT_EMPTY_0) {
-		FPU_st0_ptr->sign ^= SIGN_POS ^ SIGN_NEG;
-		status_word &= ~SW_C1;
-	} else
-		stack_underflow();
-}
-
-static void
-fabs(void)
-{
-	if (FPU_st0_tag ^ TW_Empty) {
-		FPU_st0_ptr->sign = SIGN_POS;
-		status_word &= ~SW_C1;
-	} else
-		stack_underflow();
-}
-
-
-static void
-ftst_(void)
-{
-	switch (FPU_st0_tag) {
-		case TW_Zero:
-		setcc(SW_C3);
-		break;
-	case TW_Valid:
-
-#ifdef DENORM_OPERAND
-		if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-			return;
-#endif				/* DENORM_OPERAND */
-
-		if (FPU_st0_ptr->sign == SIGN_POS)
-			setcc(0);
-		else
-			setcc(SW_C0);
-		break;
-	case TW_NaN:
-		setcc(SW_C0 | SW_C2 | SW_C3);	/* Operand is not comparable */
-		EXCEPTION(EX_Invalid);
-		break;
-	case TW_Infinity:
-		if (FPU_st0_ptr->sign == SIGN_POS)
-			setcc(0);
-		else
-			setcc(SW_C0);
-		EXCEPTION(EX_Invalid);
-		break;
-	case TW_Empty:
-		setcc(SW_C0 | SW_C2 | SW_C3);
-		EXCEPTION(EX_StackUnder);
-		break;
-	default:
-		setcc(SW_C0 | SW_C2 | SW_C3);	/* Operand is not comparable */
-		EXCEPTION(EX_INTERNAL | 0x14);
-		break;
-	}
-}
-
-static void
-fxam(void)
-{
-	int     c = 0;
-	switch (FPU_st0_tag) {
-	case TW_Empty:
-		c = SW_C3 | SW_C0;
-		break;
-	case TW_Zero:
-		c = SW_C3;
-		break;
-	case TW_Valid:
-		/* This will need to be changed if TW_Denormal is ever used. */
-		if (FPU_st0_ptr->exp <= EXP_UNDER)
-			c = SW_C2 | SW_C3;	/* Denormal */
-		else
-			c = SW_C3;
-		break;
-	case TW_NaN:
-		c = SW_C0;
-		break;
-	case TW_Infinity:
-		c = SW_C2 | SW_C0;
-		break;
-	}
-	if (FPU_st0_ptr->sign == SIGN_NEG)
-		c |= SW_C1;
-	setcc(c);
-}
-
-static FUNC fp_etc_table[] = {
-	fchs, fabs, Un_impl, Un_impl, ftst_, fxam, Un_impl, Un_impl
-};
-
-void
-fp_etc()
-{
-	(fp_etc_table[FPU_rm]) ();
-}
diff --git a/sys/gnu/arch/i386/fpemul/fpu_proto.h b/sys/gnu/arch/i386/fpemul/fpu_proto.h
deleted file mode 100644
index 3109271debc..00000000000
--- a/sys/gnu/arch/i386/fpemul/fpu_proto.h
+++ /dev/null
@@ -1,115 +0,0 @@
-/*	$OpenBSD: fpu_proto.h,v 1.1 1996/08/27 10:32:49 downsj Exp $	*/
-/*
- *
- *    $FreeBSD: fpu_proto.h,v 1.5 1995/12/17 21:13:51 phk Exp $
- *
- */
-
-
-/* errors.c */
-extern void Un_impl(void);
-extern void emu_printall(void);
-extern void exception(int n);
-extern void real_2op_NaN(FPU_REG * a, FPU_REG * b, FPU_REG * dest);
-extern void arith_invalid(FPU_REG * dest);
-extern void divide_by_zero(int sign, FPU_REG * dest);
-extern void set_precision_flag_up(void);
-extern void set_precision_flag_down(void);
-extern int denormal_operand(void);
-extern void arith_overflow(FPU_REG * dest);
-extern void arith_underflow(FPU_REG * dest);
-extern void stack_overflow(void);
-extern void stack_underflow(void);
-extern void stack_underflow_i(int i);
-extern void stack_underflow_pop(int i);
-/* fpu_arith.c */
-extern void fadd__(void);
-extern void fmul__(void);
-extern void fsub__(void);
-extern void fsubr_(void);
-extern void fdiv__(void);
-extern void fdivr_(void);
-extern void fadd_i(void);
-extern void fmul_i(void);
-extern void fsubri(void);
-extern void fsub_i(void);
-extern void fdivri(void);
-extern void fdiv_i(void);
-extern void faddp_(void);
-extern void fmulp_(void);
-extern void fsubrp(void);
-extern void fsubp_(void);
-extern void fdivrp(void);
-extern void fdivp_(void);
-/* fpu_aux.c */
-extern void finit(void);
-extern void finit_(void);
-extern void fstsw_(void);
-extern void fp_nop(void);
-extern void fld_i_(void);
-extern void fxch_i(void);
-extern void ffree_(void);
-extern void ffreep(void);
-extern void fst_i_(void);
-extern void fstp_i(void);
-/* fpu_entry.c */
-#if 0
-extern int math_emulate(struct trapframe * info);
-#endif
-/* fpu_etc.c */
-extern void fp_etc(void);
-/* fpu_trig.c */
-extern void trig_a(void);
-extern void trig_b(void);
-/* get_address.c */
-extern void get_address(unsigned char FPU_modrm);
-/* load_store.c */
-extern void load_store_instr(char type);
-/* poly_2xm1.c */
-extern int poly_2xm1(FPU_REG * arg, FPU_REG * result);
-/* poly_atan.c */
-extern void poly_atan(FPU_REG * arg);
-/* poly_l2.c */
-extern void poly_l2(FPU_REG * arg, FPU_REG * result);
-extern int poly_l2p1(FPU_REG * arg, FPU_REG * result);
-/* poly_sin.c */
-extern void poly_sine(FPU_REG * arg, FPU_REG * result);
-/* poly_tan.c */
-extern void poly_tan(FPU_REG * arg, FPU_REG * y_reg);
-/* reg_add_sub.c */
-extern void reg_add(FPU_REG * a, FPU_REG * b, FPU_REG * dest, int control_w);
-extern void reg_sub(FPU_REG * a, FPU_REG * b, FPU_REG * dest, int control_w);
-/* reg_compare.c */
-extern int compare(FPU_REG * b);
-extern int compare_st_data(void);
-extern void fcom_st(void);
-extern void fcompst(void);
-extern void fcompp(void);
-extern void fucom_(void);
-extern void fucomp(void);
-extern void fucompp(void);
-/* reg_constant.c */
-extern void fconst(void);
-/* reg_ld_str.c */
-extern void reg_load_extended(void);
-extern void reg_load_double(void);
-extern void reg_load_single(void);
-extern void reg_load_int64(void);
-extern void reg_load_int32(void);
-extern void reg_load_int16(void);
-extern void reg_load_bcd(void);
-extern int reg_store_extended(void);
-extern int reg_store_double(void);
-extern int reg_store_single(void);
-extern int reg_store_int64(void);
-extern int reg_store_int32(void);
-extern int reg_store_int16(void);
-extern int reg_store_bcd(void);
-extern int round_to_int(FPU_REG * r);
-extern char *fldenv(void);
-extern void frstor(void);
-extern unsigned short tag_word(void);
-extern char *fstenv(void);
-extern void fsave(void);
-/* reg_mul.c */
-extern void reg_mul(FPU_REG * a, FPU_REG * b, FPU_REG * dest, unsigned int control_w);
diff --git a/sys/gnu/arch/i386/fpemul/fpu_system.h b/sys/gnu/arch/i386/fpemul/fpu_system.h
deleted file mode 100644
index eee4a299ee5..00000000000
--- a/sys/gnu/arch/i386/fpemul/fpu_system.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/*	$OpenBSD: fpu_system.h,v 1.3 2003/07/30 21:30:31 jason Exp $	*/
-/*
- *  fpu_system.h
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *    $FreeBSD: fpu_system.h,v 1.4 1995/05/30 07:57:51 rgrimes Exp $
- *
- */
-
-
-#ifndef _FPU_SYSTEM_H
-#define _FPU_SYSTEM_H
-
-/* system dependent definitions */
-
-/*
-#include <linux/sched.h>
-#include <linux/kernel.h>
-*/
-
-#define	I387			(curproc->p_addr->u_pcb.pcb_savefpu.gplemu)
-
-#define FPU_info		(I387.soft.frame)
-
-#define FPU_CS			(*(unsigned short *) &(FPU_info->tf_cs))
-#define FPU_DS			(*(unsigned short *) &(FPU_info->tf_ds))
-#define FPU_EAX			(FPU_info->tf_eax)
-#define FPU_EFLAGS		(FPU_info->tf_eflags)
-#define FPU_EIP			(FPU_info->tf_eip)
-/*#define FPU_ORIG_EIP		(FPU_info->___orig_eip) */
-/*#define FPU_ORIG_EIP		(FPU_info->tf_isp)*/
-#define FPU_ORIG_EIP		(I387.soft.orig_eip)
-
-#define FPU_lookahead           (I387.soft.lookahead)
-#define FPU_entry_eip           (I387.soft.entry_eip)
-
-#define status_word		(I387.soft.swd)
-#define control_word		(I387.soft.cwd)
-#define regs			(I387.soft.regs)
-#define top			(I387.soft.top)
-
-#define ip_offset		(I387.soft.fip)
-#define cs_selector		(I387.soft.fcs)
-#define data_operand_offset	(I387.soft.foo)
-#define operand_selector	(I387.soft.fos)
-
-#endif
diff --git a/sys/gnu/arch/i386/fpemul/fpu_trig.c b/sys/gnu/arch/i386/fpemul/fpu_trig.c
deleted file mode 100644
index bbb72a06c7f..00000000000
--- a/sys/gnu/arch/i386/fpemul/fpu_trig.c
+++ /dev/null
@@ -1,1371 +0,0 @@
-/*	$OpenBSD: fpu_trig.c,v 1.3 2005/11/19 01:59:37 aaron Exp $	*/
-/*
- *  fpu_trig.c
- *
- * Implementation of the FPU "transcendental" functions.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *    $FreeBSD: fpu_trig.c,v 1.5 1995/12/17 21:13:58 phk Exp $
- *
- */
-
-
-#include <sys/param.h>
-#include <sys/proc.h>
-#include <sys/user.h>
-#include <machine/cpu.h>
-#include <machine/pcb.h>
-
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/fpu_system.h>
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/status_w.h>
-#include <gnu/arch/i386/fpemul/reg_constant.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-
-static void convert_l2reg(long *arg, FPU_REG * dest);
-
-static int
-trig_arg(FPU_REG * X)
-{
-	FPU_REG tmp, quot;
-	int     rv;
-	long long q;
-	int     old_cw = control_word;
-
-	control_word &= ~CW_RC;
-	control_word |= RC_CHOP;
-
-	reg_move(X, &quot);
-	reg_div(&quot, &CONST_PI2, &quot, FULL_PRECISION);
-
-	reg_move(&quot, &tmp);
-	round_to_int(&tmp);
-	if (tmp.sigh & 0x80000000)
-		return -1;	/* |Arg| is >= 2^63 */
-	tmp.exp = EXP_BIAS + 63;
-	q = *(long long *) &(tmp.sigl);
-	normalize(&tmp);
-
-	reg_sub(&quot, &tmp, X, FULL_PRECISION);
-	rv = q & 7;
-
-	control_word = old_cw;
-	return rv;
-}
-
-
-/* Convert a long to register */
-static void
-convert_l2reg(long *arg, FPU_REG * dest)
-{
-	long    num = *arg;
-
-	if (num == 0) {
-		reg_move(&CONST_Z, dest);
-		return;
-	}
-	if (num > 0)
-		dest->sign = SIGN_POS;
-	else {
-		num = -num;
-		dest->sign = SIGN_NEG;
-	}
-
-	dest->sigh = num;
-	dest->sigl = 0;
-	dest->exp = EXP_BIAS + 31;
-	dest->tag = TW_Valid;
-	normalize(dest);
-}
-
-
-static void
-single_arg_error(void)
-{
-	switch (FPU_st0_tag) {
-		case TW_NaN:
-		if (!(FPU_st0_ptr->sigh & 0x40000000)) {	/* Signaling ? */
-			EXCEPTION(EX_Invalid);
-			/* Convert to a QNaN */
-			FPU_st0_ptr->sigh |= 0x40000000;
-		}
-		break;		/* return with a NaN in st(0) */
-	case TW_Empty:
-		stack_underflow();	/* Puts a QNaN in st(0) */
-		break;
-#ifdef PARANOID
-	default:
-		EXCEPTION(EX_INTERNAL | 0x0112);
-#endif				/* PARANOID */
-	}
-}
-
-
-/*---------------------------------------------------------------------------*/
-
-static void
-f2xm1(void)
-{
-	switch (FPU_st0_tag) {
-		case TW_Valid:
-		{
-			FPU_REG rv, tmp;
-
-#ifdef DENORM_OPERAND
-			if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-				return;
-#endif				/* DENORM_OPERAND */
-
-			if (FPU_st0_ptr->sign == SIGN_POS) {
-				/* poly_2xm1(x) requires 0 < x < 1. */
-				if (poly_2xm1(FPU_st0_ptr, &rv))
-					return;	/* error */
-				reg_mul(&rv, FPU_st0_ptr, FPU_st0_ptr, FULL_PRECISION);
-			} else {
-/* **** Should change poly_2xm1() to at least handle numbers near 0 */
-				/* poly_2xm1(x) doesn't handle negative
-				 * numbers. */
-				/* So we compute (poly_2xm1(x+1)-1)/2, for -1
-				 * < x < 0 */
-				reg_add(FPU_st0_ptr, &CONST_1, &tmp, FULL_PRECISION);
-				poly_2xm1(&tmp, &rv);
-				reg_mul(&rv, &tmp, &tmp, FULL_PRECISION);
-				reg_sub(&tmp, &CONST_1, FPU_st0_ptr, FULL_PRECISION);
-				FPU_st0_ptr->exp--;
-				if (FPU_st0_ptr->exp <= EXP_UNDER)
-					arith_underflow(FPU_st0_ptr);
-			}
-			return;
-		}
-	case TW_Zero:
-		return;
-	case TW_Infinity:
-		if (FPU_st0_ptr->sign == SIGN_NEG) {
-			/* -infinity gives -1 (p16-10) */
-			reg_move(&CONST_1, FPU_st0_ptr);
-			FPU_st0_ptr->sign = SIGN_NEG;
-		}
-		return;
-	default:
-		single_arg_error();
-	}
-}
-
-static void
-fptan(void)
-{
-	FPU_REG *st_new_ptr;
-	int     q;
-	char    arg_sign = FPU_st0_ptr->sign;
-
-	if (STACK_OVERFLOW) {
-		stack_overflow();
-		return;
-	}
-	switch (FPU_st0_tag) {
-	case TW_Valid:
-
-#ifdef DENORM_OPERAND
-		if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-			return;
-#endif				/* DENORM_OPERAND */
-
-		FPU_st0_ptr->sign = SIGN_POS;
-		if ((q = trig_arg(FPU_st0_ptr)) != -1) {
-			if (q & 1)
-				reg_sub(&CONST_1, FPU_st0_ptr, FPU_st0_ptr, FULL_PRECISION);
-
-			poly_tan(FPU_st0_ptr, FPU_st0_ptr);
-
-			FPU_st0_ptr->sign = (q & 1) ^ arg_sign;
-
-			if (FPU_st0_ptr->exp <= EXP_UNDER)
-				arith_underflow(FPU_st0_ptr);
-
-			push();
-			reg_move(&CONST_1, FPU_st0_ptr);
-			setcc(0);
-		} else {
-			/* Operand is out of range */
-			setcc(SW_C2);
-			FPU_st0_ptr->sign = arg_sign;	/* restore st(0) */
-			return;
-		}
-		break;
-	case TW_Infinity:
-		/* Operand is out of range */
-		setcc(SW_C2);
-		FPU_st0_ptr->sign = arg_sign;	/* restore st(0) */
-		return;
-	case TW_Zero:
-		push();
-		reg_move(&CONST_1, FPU_st0_ptr);
-		setcc(0);
-		break;
-	default:
-		single_arg_error();
-		break;
-	}
-}
-
-
-static void
-fxtract(void)
-{
-	FPU_REG *st_new_ptr;
-	register FPU_REG *st1_ptr = FPU_st0_ptr;	/* anticipate */
-
-	if (STACK_OVERFLOW) {
-		stack_overflow();
-		return;
-	}
-	if (!(FPU_st0_tag ^ TW_Valid)) {
-		long    e;
-
-#ifdef DENORM_OPERAND
-		if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-			return;
-#endif				/* DENORM_OPERAND */
-
-		push();
-		reg_move(st1_ptr, FPU_st0_ptr);
-		FPU_st0_ptr->exp = EXP_BIAS;
-		e = st1_ptr->exp - EXP_BIAS;
-		convert_l2reg(&e, st1_ptr);
-		return;
-	} else
-		if (FPU_st0_tag == TW_Zero) {
-			char    sign = FPU_st0_ptr->sign;
-			divide_by_zero(SIGN_NEG, FPU_st0_ptr);
-			push();
-			reg_move(&CONST_Z, FPU_st0_ptr);
-			FPU_st0_ptr->sign = sign;
-			return;
-		} else
-			if (FPU_st0_tag == TW_Infinity) {
-				char    sign = FPU_st0_ptr->sign;
-				FPU_st0_ptr->sign = SIGN_POS;
-				push();
-				reg_move(&CONST_INF, FPU_st0_ptr);
-				FPU_st0_ptr->sign = sign;
-				return;
-			} else
-				if (FPU_st0_tag == TW_NaN) {
-					if (!(FPU_st0_ptr->sigh & 0x40000000)) {	/* Signaling ? */
-						EXCEPTION(EX_Invalid);
-						/* Convert to a QNaN */
-						FPU_st0_ptr->sigh |= 0x40000000;
-					}
-					push();
-					reg_move(st1_ptr, FPU_st0_ptr);
-					return;
-				} else
-					if (FPU_st0_tag == TW_Empty) {
-						/* Is this the correct
-						 * behaviour? */
-						if (control_word & EX_Invalid) {
-							stack_underflow();
-							push();
-							stack_underflow();
-						} else
-							EXCEPTION(EX_StackUnder);
-					}
-#ifdef PARANOID
-					else
-						EXCEPTION(EX_INTERNAL | 0x119);
-#endif				/* PARANOID */
-}
-
-
-static void
-fdecstp(void)
-{
-	top--;			/* FPU_st0_ptr will be fixed in math_emulate()
-				 * before the next instr */
-}
-
-static void
-fincstp(void)
-{
-	top++;			/* FPU_st0_ptr will be fixed in math_emulate()
-				 * before the next instr */
-}
-
-
-static void
-fsqrt_(void)
-{
-	if (!(FPU_st0_tag ^ TW_Valid)) {
-		int     expon;
-
-		if (FPU_st0_ptr->sign == SIGN_NEG) {
-			arith_invalid(FPU_st0_ptr);	/* sqrt(negative) is
-							 * invalid */
-			return;
-		}
-#ifdef DENORM_OPERAND
-		if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-			return;
-#endif				/* DENORM_OPERAND */
-
-		expon = FPU_st0_ptr->exp - EXP_BIAS;
-		FPU_st0_ptr->exp = EXP_BIAS + (expon & 1);	/* make st(0) in  [1.0
-								 * .. 4.0) */
-
-		wm_sqrt(FPU_st0_ptr, control_word);	/* Do the computation */
-
-		FPU_st0_ptr->exp += expon >> 1;
-		FPU_st0_ptr->sign = SIGN_POS;
-	} else
-		if (FPU_st0_tag == TW_Zero)
-			return;
-		else
-			if (FPU_st0_tag == TW_Infinity) {
-				if (FPU_st0_ptr->sign == SIGN_NEG)
-					arith_invalid(FPU_st0_ptr);	/* sqrt(-Infinity) is
-									 * invalid */
-				return;
-			} else {
-				single_arg_error();
-				return;
-			}
-
-}
-
-
-static void
-frndint_(void)
-{
-	if (!(FPU_st0_tag ^ TW_Valid)) {
-		if (FPU_st0_ptr->exp > EXP_BIAS + 63)
-			return;
-
-#ifdef DENORM_OPERAND
-		if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-			return;
-#endif				/* DENORM_OPERAND */
-
-		round_to_int(FPU_st0_ptr);	/* Fortunately, this can't
-						 * overflow to 2^64 */
-		FPU_st0_ptr->exp = EXP_BIAS + 63;
-		normalize(FPU_st0_ptr);
-		return;
-	} else
-		if ((FPU_st0_tag == TW_Zero) || (FPU_st0_tag == TW_Infinity))
-			return;
-		else
-			single_arg_error();
-}
-
-
-static void
-fsin(void)
-{
-	char    arg_sign = FPU_st0_ptr->sign;
-
-	if (FPU_st0_tag == TW_Valid) {
-		int     q;
-		FPU_st0_ptr->sign = SIGN_POS;
-
-#ifdef DENORM_OPERAND
-		if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-			return;
-#endif				/* DENORM_OPERAND */
-
-		if ((q = trig_arg(FPU_st0_ptr)) != -1) {
-			FPU_REG rv;
-
-			if (q & 1)
-				reg_sub(&CONST_1, FPU_st0_ptr, FPU_st0_ptr, FULL_PRECISION);
-
-			poly_sine(FPU_st0_ptr, &rv);
-
-			setcc(0);
-			if (q & 2)
-				rv.sign ^= SIGN_POS ^ SIGN_NEG;
-			rv.sign ^= arg_sign;
-			reg_move(&rv, FPU_st0_ptr);
-
-			if (FPU_st0_ptr->exp <= EXP_UNDER)
-				arith_underflow(FPU_st0_ptr);
-
-			set_precision_flag_up();	/* We do not really know
-							 * if up or down */
-
-			return;
-		} else {
-			/* Operand is out of range */
-			setcc(SW_C2);
-			FPU_st0_ptr->sign = arg_sign;	/* restore st(0) */
-			return;
-		}
-	} else
-		if (FPU_st0_tag == TW_Zero) {
-			setcc(0);
-			return;
-		} else
-			if (FPU_st0_tag == TW_Infinity) {
-				/* Operand is out of range */
-				setcc(SW_C2);
-				FPU_st0_ptr->sign = arg_sign;	/* restore st(0) */
-				return;
-			} else
-				single_arg_error();
-}
-
-
-static int
-f_cos(FPU_REG * arg)
-{
-	char    arg_sign = arg->sign;
-
-	if (arg->tag == TW_Valid) {
-		int     q;
-
-#ifdef DENORM_OPERAND
-		if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-			return 1;
-#endif				/* DENORM_OPERAND */
-
-		arg->sign = SIGN_POS;
-		if ((q = trig_arg(arg)) != -1) {
-			FPU_REG rv;
-
-			if (!(q & 1))
-				reg_sub(&CONST_1, arg, arg, FULL_PRECISION);
-
-			poly_sine(arg, &rv);
-
-			setcc(0);
-			if ((q + 1) & 2)
-				rv.sign ^= SIGN_POS ^ SIGN_NEG;
-			reg_move(&rv, arg);
-
-			set_precision_flag_up();	/* We do not really know
-							 * if up or down */
-
-			return 0;
-		} else {
-			/* Operand is out of range */
-			setcc(SW_C2);
-			arg->sign = arg_sign;	/* restore st(0) */
-			return 1;
-		}
-	} else
-		if (arg->tag == TW_Zero) {
-			reg_move(&CONST_1, arg);
-			setcc(0);
-			return 0;
-		} else
-			if (FPU_st0_tag == TW_Infinity) {
-				/* Operand is out of range */
-				setcc(SW_C2);
-				arg->sign = arg_sign;	/* restore st(0) */
-				return 1;
-			} else {
-				single_arg_error();	/* requires arg ==
-							 * &st(0) */
-				return 1;
-			}
-}
-
-
-static void
-fcos(void)
-{
-	f_cos(FPU_st0_ptr);
-}
-
-
-static void
-fsincos(void)
-{
-	FPU_REG *st_new_ptr;
-	FPU_REG arg;
-
-	if (STACK_OVERFLOW) {
-		stack_overflow();
-		return;
-	}
-	reg_move(FPU_st0_ptr, &arg);
-	if (!f_cos(&arg)) {
-		fsin();
-		push();
-		reg_move(&arg, FPU_st0_ptr);
-	}
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* The following all require two arguments: st(0) and st(1) */
-
-/* remainder of st(0) / st(1) */
-/* Assumes that st(0) and st(1) are both TW_Valid */
-static void
-fprem_kernel(int round)
-{
-	FPU_REG *st1_ptr = &st(1);
-	char    st1_tag = st1_ptr->tag;
-
-	if (!((FPU_st0_tag ^ TW_Valid) | (st1_tag ^ TW_Valid))) {
-		FPU_REG tmp;
-		int     old_cw = control_word;
-		int     expdif = FPU_st0_ptr->exp - (st1_ptr)->exp;
-
-#ifdef DENORM_OPERAND
-		if (((FPU_st0_ptr->exp <= EXP_UNDER) ||
-			(st1_ptr->exp <= EXP_UNDER)) && (denormal_operand()))
-			return;
-#endif				/* DENORM_OPERAND */
-
-		control_word &= ~CW_RC;
-		control_word |= round;
-
-		if (expdif < 64) {
-			/* This should be the most common case */
-			long long q;
-			int     c = 0;
-
-			reg_div(FPU_st0_ptr, st1_ptr, &tmp, FULL_PRECISION);
-
-			round_to_int(&tmp);	/* Fortunately, this can't
-						 * overflow to 2^64 */
-			tmp.exp = EXP_BIAS + 63;
-			q = *(long long *) &(tmp.sigl);
-			normalize(&tmp);
-
-			reg_mul(st1_ptr, &tmp, &tmp, FULL_PRECISION);
-			reg_sub(FPU_st0_ptr, &tmp, FPU_st0_ptr, FULL_PRECISION);
-
-			if (q & 4)
-				c |= SW_C3;
-			if (q & 2)
-				c |= SW_C1;
-			if (q & 1)
-				c |= SW_C0;
-
-			setcc(c);
-		} else {
-			/* There is a large exponent difference ( >= 64 ) */
-			int     N_exp;
-
-			reg_div(FPU_st0_ptr, st1_ptr, &tmp, FULL_PRECISION);
-			/* N is 'a number between 32 and 63' (p26-113) */
-			N_exp = (tmp.exp & 31) + 32;
-			tmp.exp = EXP_BIAS + N_exp;
-
-			round_to_int(&tmp);	/* Fortunately, this can't
-						 * overflow to 2^64 */
-			tmp.exp = EXP_BIAS + 63;
-			normalize(&tmp);
-
-			tmp.exp = EXP_BIAS + expdif - N_exp;
-
-			reg_mul(st1_ptr, &tmp, &tmp, FULL_PRECISION);
-			reg_sub(FPU_st0_ptr, &tmp, FPU_st0_ptr, FULL_PRECISION);
-
-			setcc(SW_C2);
-		}
-		control_word = old_cw;
-
-		if (FPU_st0_ptr->exp <= EXP_UNDER)
-			arith_underflow(FPU_st0_ptr);
-		return;
-	} else
-		if ((FPU_st0_tag == TW_Empty) | (st1_tag == TW_Empty)) {
-			stack_underflow();
-			return;
-		} else
-			if (FPU_st0_tag == TW_Zero) {
-				if (st1_tag == TW_Valid) {
-
-#ifdef DENORM_OPERAND
-					if ((st1_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-						return;
-#endif				/* DENORM_OPERAND */
-
-					setcc(0);
-					return;
-				} else
-					if (st1_tag == TW_Zero) {
-						arith_invalid(FPU_st0_ptr);
-						return;
-					}
-				/* fprem(?,0) always invalid */
-					else
-						if (st1_tag == TW_Infinity) {
-							setcc(0);
-							return;
-						}
-			} else
-				if (FPU_st0_tag == TW_Valid) {
-					if (st1_tag == TW_Zero) {
-						arith_invalid(FPU_st0_ptr);	/* fprem(Valid,Zero) is
-										 * invalid */
-						return;
-					} else
-						if (st1_tag != TW_NaN) {
-#ifdef DENORM_OPERAND
-							if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-								return;
-#endif				/* DENORM_OPERAND */
-
-							if (st1_tag == TW_Infinity) {
-								/* fprem(Valid,
-								 * Infinity)
-								 * is o.k. */
-								setcc(0);
-								return;
-							}
-						}
-				} else
-					if (FPU_st0_tag == TW_Infinity) {
-						if (st1_tag != TW_NaN) {
-							arith_invalid(FPU_st0_ptr);	/* fprem(Infinity,?) is
-											 * invalid */
-							return;
-						}
-					}
-	/* One of the registers must contain a NaN is we got here. */
-
-#ifdef PARANOID
-	if ((FPU_st0_tag != TW_NaN) && (st1_tag != TW_NaN))
-		EXCEPTION(EX_INTERNAL | 0x118);
-#endif				/* PARANOID */
-
-	real_2op_NaN(FPU_st0_ptr, st1_ptr, FPU_st0_ptr);
-
-}
-
-
-/* ST(1) <- ST(1) * log ST;  pop ST */
-static void
-fyl2x(void)
-{
-	FPU_REG *st1_ptr = &st(1);
-	char    st1_tag = st1_ptr->tag;
-
-	if (!((FPU_st0_tag ^ TW_Valid) | (st1_tag ^ TW_Valid))) {
-		if (FPU_st0_ptr->sign == SIGN_POS) {
-			int     saved_control, saved_status;
-
-#ifdef DENORM_OPERAND
-			if (((FPU_st0_ptr->exp <= EXP_UNDER) ||
-				(st1_ptr->exp <= EXP_UNDER)) && (denormal_operand()))
-				return;
-#endif				/* DENORM_OPERAND */
-
-			/* We use the general purpose arithmetic, so we need
-			 * to save these. */
-			saved_status = status_word;
-			saved_control = control_word;
-			control_word = FULL_PRECISION;
-
-			poly_l2(FPU_st0_ptr, FPU_st0_ptr);
-
-			/* Enough of the basic arithmetic is done now */
-			control_word = saved_control;
-			status_word = saved_status;
-
-			/* Let the multiply set the flags */
-			reg_mul(FPU_st0_ptr, st1_ptr, st1_ptr, FULL_PRECISION);
-
-			pop();
-			FPU_st0_ptr = &st(0);
-		} else {
-			/* negative	 */
-			pop();
-			FPU_st0_ptr = &st(0);
-			arith_invalid(FPU_st0_ptr);	/* st(0) cannot be
-							 * negative */
-			return;
-		}
-	} else
-		if ((FPU_st0_tag == TW_Empty) || (st1_tag == TW_Empty)) {
-			stack_underflow_pop(1);
-			return;
-		} else
-			if ((FPU_st0_tag == TW_NaN) || (st1_tag == TW_NaN)) {
-				real_2op_NaN(FPU_st0_ptr, st1_ptr, st1_ptr);
-				pop();
-				return;
-			} else
-				if ((FPU_st0_tag <= TW_Zero) && (st1_tag <= TW_Zero)) {
-					/* one of the args is zero, the other
-					 * valid, or both zero */
-					if (FPU_st0_tag == TW_Zero) {
-						pop();
-						FPU_st0_ptr = &st(0);
-						if (FPU_st0_ptr->tag == TW_Zero)
-							arith_invalid(FPU_st0_ptr);	/* Both args zero is
-											 * invalid */
-#ifdef PECULIAR_486
-						/* This case is not
-						 * specifically covered in the
-						 * manual, but divide-by-zero
-						 * would seem to be the best
-						 * response. However, a real
-						 * 80486 does it this way... */
-						else
-							if (FPU_st0_ptr->tag == TW_Infinity) {
-								reg_move(&CONST_INF, FPU_st0_ptr);
-								return;
-							}
-#endif				/* PECULIAR_486 */
-							else
-								divide_by_zero(st1_ptr->sign ^ SIGN_NEG ^ SIGN_POS, FPU_st0_ptr);
-						return;
-					} else {
-						/* st(1) contains zero, st(0)
-						 * valid <> 0 */
-						/* Zero is the valid answer */
-						char    sign = st1_ptr->sign;
-
-#ifdef DENORM_OPERAND
-						if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-							return;
-#endif				/* DENORM_OPERAND */
-						if (FPU_st0_ptr->sign == SIGN_NEG) {
-							pop();
-							FPU_st0_ptr = &st(0);
-							arith_invalid(FPU_st0_ptr);	/* log(negative) */
-							return;
-						}
-						if (FPU_st0_ptr->exp < EXP_BIAS)
-							sign ^= SIGN_NEG ^ SIGN_POS;
-						pop();
-						FPU_st0_ptr = &st(0);
-						reg_move(&CONST_Z, FPU_st0_ptr);
-						FPU_st0_ptr->sign = sign;
-						return;
-					}
-				}
-	/* One or both arg must be an infinity */
-				else
-					if (FPU_st0_tag == TW_Infinity) {
-						if ((FPU_st0_ptr->sign == SIGN_NEG) || (st1_tag == TW_Zero)) {
-							pop();
-							FPU_st0_ptr = &st(0);
-							arith_invalid(FPU_st0_ptr);	/* log(-infinity) or
-											 * 0*log(infinity) */
-							return;
-						} else {
-							char    sign = st1_ptr->sign;
-
-#ifdef DENORM_OPERAND
-							if ((st1_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-								return;
-#endif				/* DENORM_OPERAND */
-
-							pop();
-							FPU_st0_ptr = &st(0);
-							reg_move(&CONST_INF, FPU_st0_ptr);
-							FPU_st0_ptr->sign = sign;
-							return;
-						}
-					}
-	/* st(1) must be infinity here */
-					else
-						if ((FPU_st0_tag == TW_Valid) && (FPU_st0_ptr->sign == SIGN_POS)) {
-							if (FPU_st0_ptr->exp >= EXP_BIAS) {
-								if ((FPU_st0_ptr->exp == EXP_BIAS) &&
-								    (FPU_st0_ptr->sigh == 0x80000000) &&
-								    (FPU_st0_ptr->sigl == 0)) {
-									/* st(0
-									 * )
-									 * hold
-									 * s
-									 * 1.0 */
-									pop();
-									FPU_st0_ptr = &st(0);
-									arith_invalid(FPU_st0_ptr);	/* infinity*log(1) */
-									return;
-								}
-								/* st(0) is
-								 * positive
-								 * and > 1.0 */
-								pop();
-							} else {
-								/* st(0) is
-								 * positive
-								 * and < 1.0 */
-
-#ifdef DENORM_OPERAND
-								if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-									return;
-#endif				/* DENORM_OPERAND */
-
-								st1_ptr->sign ^= SIGN_NEG;
-								pop();
-							}
-							return;
-						} else {
-							/* st(0) must be zero
-							 * or negative */
-							if (FPU_st0_ptr->tag == TW_Zero) {
-								pop();
-								FPU_st0_ptr = st1_ptr;
-								st1_ptr->sign ^= SIGN_NEG ^ SIGN_POS;
-								/* This should
-								 * be invalid,
-								 * but a real
-								 * 80486 is
-								 * happy with
-								 * it. */
-#ifndef PECULIAR_486
-								divide_by_zero(st1_ptr->sign, FPU_st0_ptr);
-#endif				/* PECULIAR_486 */
-							} else {
-								pop();
-								FPU_st0_ptr = st1_ptr;
-								arith_invalid(FPU_st0_ptr);	/* log(negative) */
-							}
-							return;
-						}
-}
-
-
-static void
-fpatan(void)
-{
-	FPU_REG *st1_ptr = &st(1);
-	char    st1_tag = st1_ptr->tag;
-
-	if (!((FPU_st0_tag ^ TW_Valid) | (st1_tag ^ TW_Valid))) {
-		int     saved_control, saved_status;
-		FPU_REG sum;
-		int     quadrant = st1_ptr->sign | ((FPU_st0_ptr->sign) << 1);
-
-#ifdef DENORM_OPERAND
-		if (((FPU_st0_ptr->exp <= EXP_UNDER) ||
-			(st1_ptr->exp <= EXP_UNDER)) && (denormal_operand()))
-			return;
-#endif				/* DENORM_OPERAND */
-
-		/* We use the general purpose arithmetic so we need to save
-		 * these. */
-		saved_status = status_word;
-		saved_control = control_word;
-		control_word = FULL_PRECISION;
-
-		st1_ptr->sign = FPU_st0_ptr->sign = SIGN_POS;
-		if (compare(st1_ptr) == COMP_A_lt_B) {
-			quadrant |= 4;
-			reg_div(FPU_st0_ptr, st1_ptr, &sum, FULL_PRECISION);
-		} else
-			reg_div(st1_ptr, FPU_st0_ptr, &sum, FULL_PRECISION);
-
-		poly_atan(&sum);
-
-		if (quadrant & 4) {
-			reg_sub(&CONST_PI2, &sum, &sum, FULL_PRECISION);
-		}
-		if (quadrant & 2) {
-			reg_sub(&CONST_PI, &sum, &sum, FULL_PRECISION);
-		}
-		if (quadrant & 1)
-			sum.sign ^= SIGN_POS ^ SIGN_NEG;
-
-		/* All of the basic arithmetic is done now */
-		control_word = saved_control;
-		status_word = saved_status;
-
-		reg_move(&sum, st1_ptr);
-	} else
-		if ((FPU_st0_tag == TW_Empty) || (st1_tag == TW_Empty)) {
-			stack_underflow_pop(1);
-			return;
-		} else
-			if ((FPU_st0_tag == TW_NaN) || (st1_tag == TW_NaN)) {
-				real_2op_NaN(FPU_st0_ptr, st1_ptr, st1_ptr);
-				pop();
-				return;
-			} else
-				if ((FPU_st0_tag == TW_Infinity) || (st1_tag == TW_Infinity)) {
-					char    sign = st1_ptr->sign;
-					if (FPU_st0_tag == TW_Infinity) {
-						if (st1_tag == TW_Infinity) {
-							if (FPU_st0_ptr->sign == SIGN_POS) {
-								reg_move(&CONST_PI4, st1_ptr);
-							} else
-								reg_add(&CONST_PI4, &CONST_PI2, st1_ptr, FULL_PRECISION);
-						} else {
-
-#ifdef DENORM_OPERAND
-							if ((st1_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-								return;
-#endif				/* DENORM_OPERAND */
-
-							if (FPU_st0_ptr->sign == SIGN_POS) {
-								reg_move(&CONST_Z, st1_ptr);
-								pop();
-								return;
-							} else
-								reg_move(&CONST_PI, st1_ptr);
-						}
-					} else {
-						/* st(1) is infinity, st(0)
-						 * not infinity */
-#ifdef DENORM_OPERAND
-						if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-							return;
-#endif				/* DENORM_OPERAND */
-
-						reg_move(&CONST_PI2, st1_ptr);
-					}
-					st1_ptr->sign = sign;
-				} else
-					if (st1_tag == TW_Zero) {
-						/* st(0) must be valid or zero */
-						char    sign = st1_ptr->sign;
-
-#ifdef DENORM_OPERAND
-						if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-							return;
-#endif				/* DENORM_OPERAND */
-
-						if (FPU_st0_ptr->sign == SIGN_POS) {
-							reg_move(&CONST_Z, st1_ptr);
-							pop();
-							return;
-						} else
-							reg_move(&CONST_PI, st1_ptr);
-						st1_ptr->sign = sign;
-					} else
-						if (FPU_st0_tag == TW_Zero) {
-							/* st(1) must be
-							 * TW_Valid here */
-							char    sign = st1_ptr->sign;
-
-#ifdef DENORM_OPERAND
-							if ((st1_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-								return;
-#endif				/* DENORM_OPERAND */
-
-							reg_move(&CONST_PI2, st1_ptr);
-							st1_ptr->sign = sign;
-						}
-#ifdef PARANOID
-						else
-							EXCEPTION(EX_INTERNAL | 0x220);
-#endif				/* PARANOID */
-
-	pop();
-	set_precision_flag_up();/* We do not really know if up or down */
-}
-
-
-static void
-fprem(void)
-{
-	fprem_kernel(RC_CHOP);
-}
-
-
-static void
-fprem1(void)
-{
-	fprem_kernel(RC_RND);
-}
-
-
-static void
-fyl2xp1(void)
-{
-	FPU_REG *st1_ptr = &st(1);
-	char    st1_tag = st1_ptr->tag;
-
-	if (!((FPU_st0_tag ^ TW_Valid) | (st1_tag ^ TW_Valid))) {
-		int     saved_control, saved_status;
-
-#ifdef DENORM_OPERAND
-		if (((FPU_st0_ptr->exp <= EXP_UNDER) ||
-			(st1_ptr->exp <= EXP_UNDER)) && (denormal_operand()))
-			return;
-#endif				/* DENORM_OPERAND */
-
-		/* We use the general purpose arithmetic so we need to save
-		 * these. */
-		saved_status = status_word;
-		saved_control = control_word;
-		control_word = FULL_PRECISION;
-
-		if (poly_l2p1(FPU_st0_ptr, FPU_st0_ptr)) {
-			arith_invalid(st1_ptr);	/* poly_l2p1() returned
-						 * invalid */
-			pop();
-			return;
-		}
-		/* Enough of the basic arithmetic is done now */
-		control_word = saved_control;
-		status_word = saved_status;
-
-		/* Let the multiply set the flags */
-		reg_mul(FPU_st0_ptr, st1_ptr, st1_ptr, FULL_PRECISION);
-
-		pop();
-	} else
-		if ((FPU_st0_tag == TW_Empty) | (st1_tag == TW_Empty)) {
-			stack_underflow_pop(1);
-			return;
-		} else
-			if (FPU_st0_tag == TW_Zero) {
-				if (st1_tag <= TW_Zero) {
-
-#ifdef DENORM_OPERAND
-					if ((st1_tag == TW_Valid) && (st1_ptr->exp <= EXP_UNDER) &&
-					    (denormal_operand()))
-						return;
-#endif				/* DENORM_OPERAND */
-
-					st1_ptr->sign ^= FPU_st0_ptr->sign;
-					reg_move(FPU_st0_ptr, st1_ptr);
-				} else
-					if (st1_tag == TW_Infinity) {
-						arith_invalid(st1_ptr);	/* Infinity*log(1) */
-						pop();
-						return;
-					} else
-						if (st1_tag == TW_NaN) {
-							real_2op_NaN(FPU_st0_ptr, st1_ptr, st1_ptr);
-							pop();
-							return;
-						}
-#ifdef PARANOID
-						else {
-							EXCEPTION(EX_INTERNAL | 0x116);
-							return;
-						}
-#endif				/* PARANOID */
-				pop();
-				return;
-			} else
-				if (FPU_st0_tag == TW_Valid) {
-					if (st1_tag == TW_Zero) {
-						if (FPU_st0_ptr->sign == SIGN_NEG) {
-							if (FPU_st0_ptr->exp >= EXP_BIAS) {
-								/* st(0) holds
-								 * <= -1.0 */
-								arith_invalid(st1_ptr);	/* infinity*log(1) */
-								pop();
-								return;
-							}
-#ifdef DENORM_OPERAND
-							if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-								return;
-#endif				/* DENORM_OPERAND */
-							st1_ptr->sign ^= SIGN_POS ^ SIGN_NEG;
-							pop();
-							return;
-						}
-#ifdef DENORM_OPERAND
-						if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-							return;
-#endif				/* DENORM_OPERAND */
-						pop();
-						return;
-					}
-					if (st1_tag == TW_Infinity) {
-						if (FPU_st0_ptr->sign == SIGN_NEG) {
-							if ((FPU_st0_ptr->exp >= EXP_BIAS) &&
-							    !((FPU_st0_ptr->sigh == 0x80000000) &&
-								(FPU_st0_ptr->sigl == 0))) {
-								/* st(0) holds
-								 * < -1.0 */
-								arith_invalid(st1_ptr);
-								pop();
-								return;
-							}
-#ifdef DENORM_OPERAND
-							if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-								return;
-#endif				/* DENORM_OPERAND */
-							st1_ptr->sign ^= SIGN_POS ^ SIGN_NEG;
-							pop();
-							return;
-						}
-#ifdef DENORM_OPERAND
-						if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-							return;
-#endif				/* DENORM_OPERAND */
-						pop();
-						return;
-					}
-					if (st1_tag == TW_NaN) {
-						real_2op_NaN(FPU_st0_ptr, st1_ptr, st1_ptr);
-						pop();
-						return;
-					}
-				} else
-					if (FPU_st0_tag == TW_NaN) {
-						real_2op_NaN(FPU_st0_ptr, st1_ptr, st1_ptr);
-						pop();
-						return;
-					} else
-						if (FPU_st0_tag == TW_Infinity) {
-							if (st1_tag == TW_NaN) {
-								real_2op_NaN(FPU_st0_ptr, st1_ptr, st1_ptr);
-								pop();
-								return;
-							} else
-								if ((FPU_st0_ptr->sign == SIGN_NEG) ||
-								    (st1_tag == TW_Zero)) {
-									arith_invalid(st1_ptr);	/* log(infinity) */
-									pop();
-									return;
-								}
-							/* st(1) must be valid
-							 * here. */
-
-#ifdef DENORM_OPERAND
-							if ((st1_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-								return;
-#endif				/* DENORM_OPERAND */
-
-							/* The Manual says
-							 * that log(Infinity)
-							 * is invalid, but a
-							 * real 80486 sensibly
-							 * says that it is
-							 * o.k. */
-							{
-								char    sign = st1_ptr->sign;
-								reg_move(&CONST_INF, st1_ptr);
-								st1_ptr->sign = sign;
-							}
-							pop();
-							return;
-						}
-#ifdef PARANOID
-						else {
-							EXCEPTION(EX_INTERNAL | 0x117);
-						}
-#endif				/* PARANOID */
-}
-
-
-static void
-emu_fscale(void)
-{
-	FPU_REG *st1_ptr = &st(1);
-	char    st1_tag = st1_ptr->tag;
-	int     old_cw = control_word;
-
-	if (!((FPU_st0_tag ^ TW_Valid) | (st1_tag ^ TW_Valid))) {
-		long    scale;
-		FPU_REG tmp;
-
-#ifdef DENORM_OPERAND
-		if (((FPU_st0_ptr->exp <= EXP_UNDER) ||
-			(st1_ptr->exp <= EXP_UNDER)) && (denormal_operand()))
-			return;
-#endif				/* DENORM_OPERAND */
-
-		if (st1_ptr->exp > EXP_BIAS + 30) {
-			/* 2^31 is far too large, would require 2^(2^30) or
-			 * 2^(-2^30) */
-			char    sign;
-
-			if (st1_ptr->sign == SIGN_POS) {
-				EXCEPTION(EX_Overflow);
-				sign = FPU_st0_ptr->sign;
-				reg_move(&CONST_INF, FPU_st0_ptr);
-				FPU_st0_ptr->sign = sign;
-			} else {
-				EXCEPTION(EX_Underflow);
-				sign = FPU_st0_ptr->sign;
-				reg_move(&CONST_Z, FPU_st0_ptr);
-				FPU_st0_ptr->sign = sign;
-			}
-			return;
-		}
-		control_word &= ~CW_RC;
-		control_word |= RC_CHOP;
-		reg_move(st1_ptr, &tmp);
-		round_to_int(&tmp);	/* This can never overflow here */
-		control_word = old_cw;
-		scale = st1_ptr->sign ? -tmp.sigl : tmp.sigl;
-		scale += FPU_st0_ptr->exp;
-		FPU_st0_ptr->exp = scale;
-
-		/* Use round_reg() to properly detect under/overflow etc */
-		round_reg(FPU_st0_ptr, 0, control_word);
-
-		return;
-	} else
-		if (FPU_st0_tag == TW_Valid) {
-			if (st1_tag == TW_Zero) {
-
-#ifdef DENORM_OPERAND
-				if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-					return;
-#endif				/* DENORM_OPERAND */
-
-				return;
-			}
-			if (st1_tag == TW_Infinity) {
-				char    sign = st1_ptr->sign;
-
-#ifdef DENORM_OPERAND
-				if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-					return;
-#endif				/* DENORM_OPERAND */
-
-				if (sign == SIGN_POS) {
-					reg_move(&CONST_INF, FPU_st0_ptr);
-				} else
-					reg_move(&CONST_Z, FPU_st0_ptr);
-				FPU_st0_ptr->sign = sign;
-				return;
-			}
-			if (st1_tag == TW_NaN) {
-				real_2op_NaN(FPU_st0_ptr, st1_ptr, FPU_st0_ptr);
-				return;
-			}
-		} else
-			if (FPU_st0_tag == TW_Zero) {
-				if (st1_tag == TW_Valid) {
-
-#ifdef DENORM_OPERAND
-					if ((st1_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-						return;
-#endif				/* DENORM_OPERAND */
-
-					return;
-				} else
-					if (st1_tag == TW_Zero) {
-						return;
-					} else
-						if (st1_tag == TW_Infinity) {
-							if (st1_ptr->sign == SIGN_NEG)
-								return;
-							else {
-								arith_invalid(FPU_st0_ptr);	/* Zero scaled by
-												 * +Infinity */
-								return;
-							}
-						} else
-							if (st1_tag == TW_NaN) {
-								real_2op_NaN(FPU_st0_ptr, st1_ptr, FPU_st0_ptr);
-								return;
-							}
-			} else
-				if (FPU_st0_tag == TW_Infinity) {
-					if (st1_tag == TW_Valid) {
-
-#ifdef DENORM_OPERAND
-						if ((st1_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-							return;
-#endif				/* DENORM_OPERAND */
-
-						return;
-					}
-					if (((st1_tag == TW_Infinity) && (st1_ptr->sign == SIGN_POS))
-					    || (st1_tag == TW_Zero))
-						return;
-					else
-						if (st1_tag == TW_Infinity) {
-							arith_invalid(FPU_st0_ptr);	/* Infinity scaled by
-											 * -Infinity */
-							return;
-						} else
-							if (st1_tag == TW_NaN) {
-								real_2op_NaN(FPU_st0_ptr, st1_ptr, FPU_st0_ptr);
-								return;
-							}
-				} else
-					if (FPU_st0_tag == TW_NaN) {
-						if (st1_tag != TW_Empty) {
-							real_2op_NaN(FPU_st0_ptr, st1_ptr, FPU_st0_ptr);
-							return;
-						}
-					}
-#ifdef PARANOID
-	if (!((FPU_st0_tag == TW_Empty) || (st1_tag == TW_Empty))) {
-		EXCEPTION(EX_INTERNAL | 0x115);
-		return;
-	}
-#endif
-
-	/* At least one of st(0), st(1) must be empty */
-	stack_underflow();
-
-}
-
-
-/*---------------------------------------------------------------------------*/
-
-static FUNC trig_table_a[] = {
-	f2xm1, fyl2x, fptan, fpatan, fxtract, fprem1, fdecstp, fincstp
-};
-
-void
-trig_a(void)
-{
-	(trig_table_a[FPU_rm]) ();
-}
-
-
-static FUNC trig_table_b[] =
-{
-	fprem, fyl2xp1, fsqrt_, fsincos, frndint_, emu_fscale, fsin, fcos
-};
-
-void
-trig_b(void)
-{
-	(trig_table_b[FPU_rm]) ();
-}
diff --git a/sys/gnu/arch/i386/fpemul/get_address.c b/sys/gnu/arch/i386/fpemul/get_address.c
deleted file mode 100644
index edf13af7854..00000000000
--- a/sys/gnu/arch/i386/fpemul/get_address.c
+++ /dev/null
@@ -1,210 +0,0 @@
-/*	$OpenBSD: get_address.c,v 1.4 2003/07/30 21:30:31 jason Exp $	*/
-/*
- *  get_address.c
- *
- * Get the effective address from an FPU instruction.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: get_address.c,v 1.3 1994/06/10 07:44:29 rich Exp $
- *
- */
-
-/*---------------------------------------------------------------------------+
- | Note:                                                                     |
- |    The file contains code which accesses user memory.                     |
- |    Emulator static data may change when user memory is accessed, due to   |
- |    other processes using the emulator while swapping is in progress.      |
- +---------------------------------------------------------------------------*/
-
-#include <sys/param.h>
-#include <sys/proc.h>
-#include <sys/systm.h>
-#include <sys/user.h>
-#include <machine/cpu.h>
-#include <machine/pcb.h>
-#include <machine/reg.h>
-
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/fpu_system.h>
-#include <gnu/arch/i386/fpemul/exception.h>
-
-static int reg_offset[] = {
-tEAX, tECX, tEDX, tEBX, tESP, tEBP, tESI, tEDI};
-#define REG_(x) (*(((int *)FPU_info) + reg_offset[(x)]))
-
-void   *FPU_data_address;
-
-
-/* Decode the SIB byte. This function assumes mod != 0 */
-static void *
-sib(int mod)
-{
-	unsigned char ss, index, base;
-	long    tmp, offset;
-
-	REENTRANT_CHECK(OFF);
-	copyin((char *)FPU_EIP, &base, sizeof(u_char));	/* The SIB byte */
-	REENTRANT_CHECK(ON);
-	FPU_EIP++;
-	ss = base >> 6;
-	index = (base >> 3) & 7;
-	base &= 7;
-
-	if ((mod == 0) && (base == 5))
-		offset = 0;	/* No base register */
-	else
-		offset = REG_(base);
-
-	if (index == 4) {
-		/* No index register */
-		/* A non-zero ss is illegal */
-		if (ss)
-			EXCEPTION(EX_Invalid);
-	} else {
-		offset += (REG_(index)) << ss;
-	}
-
-	if (mod == 1) {
-		/* 8 bit signed displacement */
-		REENTRANT_CHECK(OFF);
-		copyin((char *)FPU_EIP, &tmp, sizeof(u_char));
-		offset += (signed char)tmp;
-		REENTRANT_CHECK(ON);
-		FPU_EIP++;
-	} else
-		if (mod == 2 || base == 5) {	/* The second condition also
-						 * has mod==0 */
-			/* 32 bit displacment */
-			REENTRANT_CHECK(OFF);
-			copyin((u_long *)FPU_EIP, &tmp, sizeof(u_long));
-			REENTRANT_CHECK(ON);
-			offset += (signed)tmp;
-			FPU_EIP += 4;
-		}
-	return (void *) offset;
-}
-
-
-/*
-       MOD R/M byte:  MOD == 3 has a special use for the FPU
-                      SIB byte used iff R/M = 100b
-
-       7   6   5   4   3   2   1   0
-       .....   .........   .........
-        MOD    OPCODE(2)     R/M
-
-
-       SIB byte
-
-       7   6   5   4   3   2   1   0
-       .....   .........   .........
-        SS      INDEX        BASE
-
-*/
-
-void
-get_address(unsigned char FPU_modrm)
-{
-	unsigned char mod;
-	long   *cpu_reg_ptr;
-	int     tmp = 0;
-	int	offset = 0;	/* Initialized just to stop compiler warnings. */
-
-	mod = (FPU_modrm >> 6) & 3;
-
-	if (FPU_rm == 4 && mod != 3) {
-		FPU_data_address = sib(mod);
-		return;
-	}
-	cpu_reg_ptr = (long *) &REG_(FPU_rm);
-	switch (mod) {
-	case 0:
-		if (FPU_rm == 5) {
-			/* Special case: disp32 */
-			REENTRANT_CHECK(OFF);
-			copyin((u_long *)FPU_EIP, &offset, sizeof(u_long));
-			REENTRANT_CHECK(ON);
-			FPU_EIP += 4;
-			FPU_data_address = (void *) offset;
-			return;
-		} else {
-			FPU_data_address = (void *) *cpu_reg_ptr;	/* Just return the
-									 * contents of the cpu
-									 * register */
-			return;
-		}
-	case 1:
-		/* 8 bit signed displacement */
-		REENTRANT_CHECK(OFF);
-		copyin((char *)FPU_EIP, &tmp, sizeof(char));
-		REENTRANT_CHECK(ON);
-		offset = (signed char)tmp;
-		FPU_EIP++;
-		break;
-	case 2:
-		/* 32 bit displacement */
-		REENTRANT_CHECK(OFF);
-		copyin((u_long *)FPU_EIP, &offset, sizeof(u_long));
-		REENTRANT_CHECK(ON);
-		offset = (signed)tmp;
-		FPU_EIP += 4;
-		break;
-	case 3:
-		/* Not legal for the FPU */
-		EXCEPTION(EX_Invalid);
-	}
-
-	FPU_data_address = offset + (char *) *cpu_reg_ptr;
-}
diff --git a/sys/gnu/arch/i386/fpemul/load_store.c b/sys/gnu/arch/i386/fpemul/load_store.c
deleted file mode 100644
index cb77b1e5d68..00000000000
--- a/sys/gnu/arch/i386/fpemul/load_store.c
+++ /dev/null
@@ -1,274 +0,0 @@
-/*	$OpenBSD: load_store.c,v 1.4 2003/07/30 21:30:31 jason Exp $	*/
-/*
- *  load_store.c
- *
- * This file contains most of the code to interpret the FPU instructions
- * which load and store from user memory.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *    $FreeBSD: load_store.c,v 1.5 1996/06/25 20:29:21 bde Exp $
- *
- */
-
-/*---------------------------------------------------------------------------+
- | Note:                                                                     |
- |    The file contains code which accesses user memory.                     |
- |    Emulator static data may change when user memory is accessed, due to   |
- |    other processes using the emulator while swapping is in progress.      |
- +---------------------------------------------------------------------------*/
-
-#include <sys/param.h>
-#include <sys/proc.h>
-#include <sys/systm.h>
-#include <sys/user.h>
-#include <machine/cpu.h>
-#include <machine/pcb.h>
-
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/fpu_system.h>
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/status_w.h>
-
-
-#define _NONE_ 0		/* FPU_st0_ptr etc not needed */
-#define _REG0_ 1		/* Will be storing st(0) */
-#define _PUSH_ 3		/* Need to check for space to push onto stack */
-#define _null_ 4		/* Function illegal or not implemented */
-
-#define pop_0()	{ pop_ptr->tag = TW_Empty; top++; }
-
-
-static unsigned char type_table[32] = {
-	_PUSH_, _PUSH_, _PUSH_, _PUSH_,
-	_null_, _null_, _null_, _null_,
-	_REG0_, _REG0_, _REG0_, _REG0_,
-	_REG0_, _REG0_, _REG0_, _REG0_,
-	_NONE_, _null_, _NONE_, _PUSH_,
-	_NONE_, _PUSH_, _null_, _PUSH_,
-	_NONE_, _null_, _NONE_, _REG0_,
-	_NONE_, _REG0_, _NONE_, _REG0_
-};
-
-void
-load_store_instr(char type)
-{
-	FPU_REG *pop_ptr;	/* We need a version of FPU_st0_ptr which
-				 * won't change. */
-
-	pop_ptr = NULL;		/* Initialized just to stop compiler warnings. */
-
-
-	switch (type_table[(int) (unsigned) type]) {
-	case _NONE_:
-		break;
-	case _REG0_:
-		pop_ptr = &st(0);	/* Some of these instructions pop
-					 * after storing */
-
-		FPU_st0_ptr = pop_ptr;	/* Set the global variables. */
-		FPU_st0_tag = FPU_st0_ptr->tag;
-		break;
-	case _PUSH_:
-		{
-			pop_ptr = &st(-1);
-			if (pop_ptr->tag != TW_Empty) {
-				stack_overflow();
-				return;
-			}
-			top--;
-		}
-		break;
-	case _null_:
-		return Un_impl();
-#ifdef PARANOID
-	default:
-		return EXCEPTION(EX_INTERNAL);
-#endif				/* PARANOID */
-	}
-
-	switch (type) {
-	case 000:		/* fld m32real */
-		reg_load_single();
-		setcc(0);	/* Clear the SW_C1 bit, "other bits undefined" */
-		reg_move(&FPU_loaded_data, pop_ptr);
-		break;
-	case 001:		/* fild m32int */
-		reg_load_int32();
-		setcc(0);	/* Clear the SW_C1 bit, "other bits undefined" */
-		reg_move(&FPU_loaded_data, pop_ptr);
-		break;
-	case 002:		/* fld m64real */
-		reg_load_double();
-		setcc(0);	/* Clear the SW_C1 bit, "other bits undefined" */
-		reg_move(&FPU_loaded_data, pop_ptr);
-		break;
-	case 003:		/* fild m16int */
-		reg_load_int16();
-		setcc(0);	/* Clear the SW_C1 bit, "other bits undefined" */
-		reg_move(&FPU_loaded_data, pop_ptr);
-		break;
-	case 010:		/* fst m32real */
-		reg_store_single();
-		break;
-	case 011:		/* fist m32int */
-		reg_store_int32();
-		break;
-	case 012:		/* fst m64real */
-		reg_store_double();
-		break;
-	case 013:		/* fist m16int */
-		reg_store_int16();
-		break;
-	case 014:		/* fstp m32real */
-		if (reg_store_single())
-			pop_0();/* pop only if the number was actually stored
-				 * (see the 80486 manual p16-28) */
-		break;
-	case 015:		/* fistp m32int */
-		if (reg_store_int32())
-			pop_0();/* pop only if the number was actually stored
-				 * (see the 80486 manual p16-28) */
-		break;
-	case 016:		/* fstp m64real */
-		if (reg_store_double())
-			pop_0();/* pop only if the number was actually stored
-				 * (see the 80486 manual p16-28) */
-		break;
-	case 017:		/* fistp m16int */
-		if (reg_store_int16())
-			pop_0();/* pop only if the number was actually stored
-				 * (see the 80486 manual p16-28) */
-		break;
-	case 020:		/* fldenv  m14/28byte */
-		fldenv();
-		break;
-	case 022:		/* frstor m94/108byte */
-		frstor();
-		break;
-	case 023:		/* fbld m80dec */
-		reg_load_bcd();
-		setcc(0);	/* Clear the SW_C1 bit, "other bits undefined" */
-		reg_move(&FPU_loaded_data, pop_ptr);
-		break;
-	case 024:		/* fldcw */
-		REENTRANT_CHECK(OFF);
-		copyin((u_long *)FPU_data_address, &control_word,
-		    sizeof(u_long));
-		REENTRANT_CHECK(ON);
-#ifdef NO_UNDERFLOW_TRAP
-		if (!(control_word & EX_Underflow)) {
-			control_word |= EX_Underflow;
-		}
-#endif
-		FPU_data_address = (void *) data_operand_offset;	/* We want no net effect */
-		FPU_entry_eip = ip_offset;	/* We want no net effect */
-		break;
-	case 025:		/* fld m80real */
-		reg_load_extended();
-		setcc(0);	/* Clear the SW_C1 bit, "other bits undefined" */
-		reg_move(&FPU_loaded_data, pop_ptr);
-		break;
-	case 027:		/* fild m64int */
-		reg_load_int64();
-		setcc(0);	/* Clear the SW_C1 bit, "other bits undefined" */
-		reg_move(&FPU_loaded_data, pop_ptr);
-		break;
-	case 030:		/* fstenv  m14/28byte */
-		fstenv();
-		FPU_data_address = (void *) data_operand_offset;	/* We want no net effect */
-		FPU_entry_eip = ip_offset;	/* We want no net effect */
-		break;
-	case 032:		/* fsave */
-		fsave();
-		FPU_data_address = (void *) data_operand_offset;	/* We want no net effect */
-		FPU_entry_eip = ip_offset;	/* We want no net effect */
-		break;
-	case 033:		/* fbstp m80dec */
-		if (reg_store_bcd())
-			pop_0();/* pop only if the number was actually stored
-				 * (see the 80486 manual p16-28) */
-		break;
-	case 034:		/* fstcw m16int */
-		REENTRANT_CHECK(OFF);
-/*		    verify_area(VERIFY_WRITE, FPU_data_address, 2);*/
-		copyout(&control_word, (short *)FPU_data_address,
-		    sizeof(int16_t));
-		REENTRANT_CHECK(ON);
-		FPU_data_address = (void *) data_operand_offset;	/* We want no net effect */
-		FPU_entry_eip = ip_offset;	/* We want no net effect */
-		break;
-	case 035:		/* fstp m80real */
-		if (reg_store_extended())
-			pop_0();/* pop only if the number was actually stored
-				 * (see the 80486 manual p16-28) */
-		break;
-	case 036:		/* fstsw m2byte */
-		status_word &= ~SW_Top;
-		status_word |= (top & 7) << SW_Top_Shift;
-		REENTRANT_CHECK(OFF);
-/*		    verify_area(VERIFY_WRITE, FPU_data_address, 2);*/
-		copyout(&status_word, (short *)FPU_data_address,
-		    sizeof(int16_t));
-		REENTRANT_CHECK(ON);
-		FPU_data_address = (void *) data_operand_offset;	/* We want no net effect */
-		FPU_entry_eip = ip_offset;	/* We want no net effect */
-		break;
-	case 037:		/* fistp m64int */
-		if (reg_store_int64())
-			pop_0();/* pop only if the number was actually stored
-				 * (see the 80486 manual p16-28) */
-		break;
-	}
-}
diff --git a/sys/gnu/arch/i386/fpemul/math_emu.h b/sys/gnu/arch/i386/fpemul/math_emu.h
deleted file mode 100644
index 9709e3aa270..00000000000
--- a/sys/gnu/arch/i386/fpemul/math_emu.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*	$OpenBSD: math_emu.h,v 1.1 1996/08/27 10:32:52 downsj Exp $	*/
-/*
- *
- *    $FreeBSD: math_emu.h,v 1.2 1994/04/29 21:23:24 gclarkii Exp $
- *
- */
-
-#ifndef _MATH_EMU_H
-#define _MATH_EMU_H
-
-struct fpu_reg {
-	char    sign;
-	char    tag;
-	long    exp;
-	u_long  sigl;
-	u_long  sigh;
-};
-
-union i387_union {
-	struct i387_hard_struct {
-		long    cwd;
-		long    swd;
-		long    twd;
-		long    fip;
-		long    fcs;
-		long    foo;
-		long    fos;
-		long    st_space[20];	/* 8*10 bytes for each FP-reg = 80
-					 * bytes */
-	}       hard;
-	struct i387_soft_struct {
-		long    cwd;
-		long    swd;
-		long    twd;
-		long    fip;
-		long    fcs;
-		long    foo;
-		long    fos;
-		long    top;
-		struct fpu_reg regs[8];	/* 8*16 bytes for each FP-reg = 128
-					 * bytes */
-		unsigned char lookahead;
-		struct trapframe *frame;
-		unsigned long entry_eip;
-		int     orig_eip;
-	}       soft;
-};
-#endif
diff --git a/sys/gnu/arch/i386/fpemul/poly_2xm1.c b/sys/gnu/arch/i386/fpemul/poly_2xm1.c
deleted file mode 100644
index 7a668ac4a9e..00000000000
--- a/sys/gnu/arch/i386/fpemul/poly_2xm1.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/*	$OpenBSD: poly_2xm1.c,v 1.1 1996/08/27 10:32:52 downsj Exp $	*/
-/*
- *  poly_2xm1.c
- *
- * Function to compute 2^x-1 by a polynomial approximation.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *   $FreeBSD: poly_2xm1.c,v 1.3 1994/06/10 07:44:32 rich Exp $
- *
- */
-
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/reg_constant.h>
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-
-
-
-#define	HIPOWER	13
-static unsigned short lterms[HIPOWER][4] =
-{
-	{0x79b5, 0xd1cf, 0x17f7, 0xb172},
-	{0x1b56, 0x058b, 0x7bff, 0x3d7f},
-	{0x8bb0, 0x8250, 0x846b, 0x0e35},
-	{0xbc65, 0xf747, 0x556d, 0x0276},
-	{0x17cb, 0x9e39, 0x61ff, 0x0057},
-	{0xe018, 0x9776, 0x1848, 0x000a},
-	{0x66f2, 0xff30, 0xffe5, 0x0000},
-	{0x682f, 0xffb6, 0x162b, 0x0000},
-	{0xb7ca, 0x2956, 0x01b5, 0x0000},
-	{0xcd3e, 0x4817, 0x001e, 0x0000},
-	{0xb7e2, 0xecbe, 0x0001, 0x0000},
-	{0x0ed5, 0x1a27, 0x0000, 0x0000},
-	{0x101d, 0x0222, 0x0000, 0x0000},
-};
-
-
-/*--- poly_2xm1() -----------------------------------------------------------+
- |                                                                           |
- +---------------------------------------------------------------------------*/
-int
-poly_2xm1(FPU_REG * arg, FPU_REG * result)
-{
-	short   exponent;
-	long long Xll;
-	FPU_REG accum;
-
-
-	exponent = arg->exp - EXP_BIAS;
-
-	if (arg->tag == TW_Zero) {
-		/* Return 0.0 */
-		reg_move(&CONST_Z, result);
-		return 0;
-	}
-	if (exponent >= 0) {	/* Can't hack a number >= 1.0 */
-		arith_invalid(result);	/* Number too large */
-		return 1;
-	}
-	if (arg->sign != SIGN_POS) {	/* Can't hack a number < 0.0 */
-		arith_invalid(result);	/* Number negative */
-		return 1;
-	}
-	if (exponent < -64) {
-		reg_move(&CONST_LN2, result);
-		return 0;
-	}
-	*(unsigned *) &Xll = arg->sigl;
-	*(((unsigned *) &Xll) + 1) = arg->sigh;
-	if (exponent < -1) {
-		/* shift the argument right by the required places */
-		if (shrx(&Xll, -1 - exponent) >= (unsigned)0x80000000)
-			Xll++;	/* round up */
-	}
-	*(short *) &(accum.sign) = 0;	/* will be a valid positive nr with
-					 * expon = 0 */
-	accum.exp = 0;
-
-	/* Do the basic fixed point polynomial evaluation */
-	polynomial((unsigned *) &accum.sigl, (unsigned *) &Xll, lterms, HIPOWER - 1);
-
-	/* Convert to 64 bit signed-compatible */
-	accum.exp += EXP_BIAS - 1;
-
-	reg_move(&accum, result);
-
-	normalize(result);
-
-	return 0;
-
-}
diff --git a/sys/gnu/arch/i386/fpemul/poly_atan.c b/sys/gnu/arch/i386/fpemul/poly_atan.c
deleted file mode 100644
index 5d8fc2d8ff5..00000000000
--- a/sys/gnu/arch/i386/fpemul/poly_atan.c
+++ /dev/null
@@ -1,254 +0,0 @@
-/*	$OpenBSD: poly_atan.c,v 1.1 1996/08/27 10:32:53 downsj Exp $	*/
-/*
- *  p_atan.c
- *
- * Compute the tan of a FPU_REG, using a polynomial approximation.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *    $FreeBSD: poly_atan.c,v 1.5 1995/12/14 09:50:24 phk Exp $
- *
- */
-
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/reg_constant.h>
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-
-
-#define	HIPOWERon	6	/* odd poly, negative terms */
-static unsigned oddnegterms[HIPOWERon][2] =
-{
-	{0x00000000, 0x00000000},	/* for + 1.0 */
-	{0x763b6f3d, 0x1adc4428},
-	{0x20f0630b, 0x0502909d},
-	{0x4e825578, 0x0198ce38},
-	{0x22b7cb87, 0x008da6e3},
-	{0x9b30ca03, 0x00239c79}
-};
-#define	HIPOWERop	6	/* odd poly, positive terms */
-static unsigned oddplterms[HIPOWERop][2] =
-{
-	{0xa6f67cb8, 0x94d910bd},
-	{0xa02ffab4, 0x0a43cb45},
-	{0x04265e6b, 0x02bf5655},
-	{0x0a728914, 0x00f280f7},
-	{0x6d640e01, 0x004d6556},
-	{0xf1dd2dbf, 0x000a530a}
-};
-
-
-static unsigned denomterm[2] =
-{0xfc4bd208, 0xea2e6612};
-
-
-static void poly_add_1(FPU_REG * src);
-
-/*--- poly_atan() -----------------------------------------------------------+
- |                                                                           |
- +---------------------------------------------------------------------------*/
-void
-poly_atan(FPU_REG * arg)
-{
-	char    recursions = 0;
-	short   exponent;
-	FPU_REG odd_poly, even_poly, pos_poly, neg_poly;
-	FPU_REG argSq;
-	long long arg_signif, argSqSq;
-
-
-#ifdef PARANOID
-	if (arg->sign != 0) {	/* Can't hack a number < 0.0 */
-		arith_invalid(arg);
-		return;
-	}			/* Need a positive number */
-#endif				/* PARANOID */
-
-	exponent = arg->exp - EXP_BIAS;
-
-	if (arg->tag == TW_Zero) {
-		/* Return 0.0 */
-		reg_move(&CONST_Z, arg);
-		return;
-	}
-	if (exponent >= -2) {
-		/* argument is in the range  [0.25 .. 1.0] */
-		if (exponent >= 0) {
-#ifdef PARANOID
-			if ((exponent == 0) &&
-			    (arg->sigl == 0) && (arg->sigh == 0x80000000))
-#endif				/* PARANOID */
-			{
-				reg_move(&CONST_PI4, arg);
-				return;
-			}
-#ifdef PARANOID
-			EXCEPTION(EX_INTERNAL | 0x104);	/* There must be a logic
-							 * error */
-#endif				/* PARANOID */
-		}
-		/* If the argument is greater than sqrt(2)-1 (=0.414213562...) */
-		/* convert the argument by an identity for atan */
-		if ((exponent >= -1) || (arg->sigh > 0xd413ccd0)) {
-			FPU_REG numerator, denom;
-
-			recursions++;
-
-			arg_signif = *(long long *) &(arg->sigl);
-			if (exponent < -1) {
-				if (shrx(&arg_signif, -1 - exponent) >= (unsigned)0x80000000)
-					arg_signif++;	/* round up */
-			}
-			*(long long *) &(numerator.sigl) = -arg_signif;
-			numerator.exp = EXP_BIAS - 1;
-			normalize(&numerator);	/* 1 - arg */
-
-			arg_signif = *(long long *) &(arg->sigl);
-			if (shrx(&arg_signif, -exponent) >= (unsigned)0x80000000)
-				arg_signif++;	/* round up */
-			*(long long *) &(denom.sigl) = arg_signif;
-			denom.sigh |= 0x80000000;	/* 1 + arg */
-
-			arg->exp = numerator.exp;
-			reg_u_div(&numerator, &denom, arg, FULL_PRECISION);
-
-			exponent = arg->exp - EXP_BIAS;
-		}
-	}
-	*(long long *) &arg_signif = *(long long *) &(arg->sigl);
-
-#ifdef PARANOID
-	/* This must always be true */
-	if (exponent >= -1) {
-		EXCEPTION(EX_INTERNAL | 0x120);	/* There must be a logic error */
-	}
-#endif				/* PARANOID */
-
-	/* shift the argument right by the required places */
-	if (shrx(&arg_signif, -1 - exponent) >= (unsigned)0x80000000)
-		arg_signif++;	/* round up */
-
-	/* Now have arg_signif with binary point at the left .1xxxxxxxx */
-	mul64(&arg_signif, &arg_signif, (long long *) (&argSq.sigl));
-	mul64((long long *) (&argSq.sigl), (long long *) (&argSq.sigl), &argSqSq);
-
-	/* will be a valid positive nr with expon = 0 */
-	*(short *) &(pos_poly.sign) = 0;
-	pos_poly.exp = EXP_BIAS;
-
-	/* Do the basic fixed point polynomial evaluation */
-	polynomial((u_int *) &pos_poly.sigl, (unsigned *) &argSqSq,
-	    (unsigned short (*)[4]) oddplterms, HIPOWERop - 1);
-	mul64((long long *) (&argSq.sigl), (long long *) (&pos_poly.sigl),
-	    (long long *) (&pos_poly.sigl));
-
-	/* will be a valid positive nr with expon = 0 */
-	*(short *) &(neg_poly.sign) = 0;
-	neg_poly.exp = EXP_BIAS;
-
-	/* Do the basic fixed point polynomial evaluation */
-	polynomial((u_int *) &neg_poly.sigl, (unsigned *) &argSqSq,
-	    (unsigned short (*)[4]) oddnegterms, HIPOWERon - 1);
-
-	/* Subtract the mantissas */
-	*((long long *) (&pos_poly.sigl)) -= *((long long *) (&neg_poly.sigl));
-
-	reg_move(&pos_poly, &odd_poly);
-	poly_add_1(&odd_poly);
-
-	/* The complete odd polynomial */
-	reg_u_mul(&odd_poly, arg, &odd_poly, FULL_PRECISION);
-
-	/* will be a valid positive nr with expon = 0 */
-	*(short *) &(even_poly.sign) = 0;
-
-	mul64((long long *) (&argSq.sigl),
-	    (long long *) (&denomterm), (long long *) (&even_poly.sigl));
-
-	poly_add_1(&even_poly);
-
-	reg_div(&odd_poly, &even_poly, arg, FULL_PRECISION);
-
-	if (recursions)
-		reg_sub(&CONST_PI4, arg, arg, FULL_PRECISION);
-}
-
-
-/* The argument to this function must be polynomial() compatible,
-   i.e. have an exponent (not checked) of EXP_BIAS-1 but need not
-   be normalized.
-   This function adds 1.0 to the (assumed positive) argument. */
-static void
-poly_add_1(FPU_REG * src)
-{
-/* Rounding in a consistent direction produces better results
-   for the use of this function in poly_atan. Simple truncation
-   is used here instead of round-to-nearest. */
-
-#ifdef OBSOLETE
-	char    round = (src->sigl & 3) == 3;
-#endif				/* OBSOLETE */
-
-	shrx(&src->sigl, 1);
-
-#ifdef OBSOLETE
-	if (round)
-		(*(long long *) &src->sigl)++;	/* Round to even */
-#endif				/* OBSOLETE */
-
-	src->sigh |= 0x80000000;
-
-	src->exp = EXP_BIAS;
-
-}
diff --git a/sys/gnu/arch/i386/fpemul/poly_div.s b/sys/gnu/arch/i386/fpemul/poly_div.s
deleted file mode 100644
index e88b884e249..00000000000
--- a/sys/gnu/arch/i386/fpemul/poly_div.s
+++ /dev/null
@@ -1,159 +0,0 @@
-	.file	"poly_div.S"
-/*	$OpenBSD: poly_div.s,v 1.2 2002/10/12 07:12:58 pvalchev Exp $	*/
-/*
- *  poly_div.S
- *
- * A set of functions to divide 64 bit integers by fixed numbers.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: poly_div.s,v 1.3 1994/06/10 07:44:36 rich Exp $
- *
- */
-
-#include <machine/asm.h>
-
-#include <gnu/arch/i386/fpemul/fpu_asm.h>
-
-.text
-
-/*---------------------------------------------------------------------------*/
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-.globl _C_LABEL(poly_div2)
-_C_LABEL(poly_div2):
-	pushl %ebp
-	movl %esp,%ebp
-
-	movl PARAM1,%ecx
-	movw (%ecx),%ax
-
-	shrl $1,4(%ecx)
-	rcrl $1,(%ecx)
-
-	testw $1,%ax
-	je poly_div2_exit
-
-	addl $1,(%ecx)
-	adcl $0,4(%ecx)
-poly_div2_exit:
-
-	leave
-	ret
-/*---------------------------------------------------------------------------*/
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-.globl _C_LABEL(poly_div4)
-_C_LABEL(poly_div4):
-	pushl %ebp
-	movl %esp,%ebp
-
-	movl PARAM1,%ecx
-	movw (%ecx),%ax
-
-	movl 4(%ecx),%edx
-	shll $30,%edx
-
-	shrl $2,4(%ecx)
-	shrl $2,(%ecx)
-
-	orl %edx,(%ecx)
-
-	testw $2,%ax
-	je poly_div4_exit
-
-	addl $1,(%ecx)
-	adcl $0,4(%ecx)
-poly_div4_exit:
-
-	leave
-	ret
-/*---------------------------------------------------------------------------*/
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-.globl _C_LABEL(poly_div16)
-_C_LABEL(poly_div16):
-	pushl %ebp
-	movl %esp,%ebp
-
-	movl PARAM1,%ecx
-	movw (%ecx),%ax
-
-	movl 4(%ecx),%edx
-	shll $28,%edx
-
-	shrl $4,4(%ecx)
-	shrl $4,(%ecx)
-
-	orl %edx,(%ecx)
-
-	testw $8,%ax
-	je poly_div16_exit
-
-	addl $1,(%ecx)
-	adcl $0,4(%ecx)
-poly_div16_exit:
-
-	leave
-	ret
-/*---------------------------------------------------------------------------*/
diff --git a/sys/gnu/arch/i386/fpemul/poly_l2.c b/sys/gnu/arch/i386/fpemul/poly_l2.c
deleted file mode 100644
index e50a9e59df3..00000000000
--- a/sys/gnu/arch/i386/fpemul/poly_l2.c
+++ /dev/null
@@ -1,319 +0,0 @@
-/*	$OpenBSD: poly_l2.c,v 1.1 1996/08/27 10:32:54 downsj Exp $	*/
-/*
- *  poly_l2.c
- *
- * Compute the base 2 log of a FPU_REG, using a polynomial approximation.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: poly_l2.c,v 1.5 1994/06/10 07:44:38 rich Exp $
- *
- */
-
-
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/reg_constant.h>
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-
-
-
-#define	HIPOWER	9
-static unsigned short lterms[HIPOWER][4] =
-{
-	/* Ideal computation with these coeffs gives about 64.6 bit rel
-	 * accuracy. */
-	{0xe177, 0xb82f, 0x7652, 0x7154},
-	{0xee0f, 0xe80f, 0x2770, 0x7b1c},
-	{0x0fc0, 0xbe87, 0xb143, 0x49dd},
-	{0x78b9, 0xdadd, 0xec54, 0x34c2},
-	{0x003a, 0x5de9, 0x628b, 0x2909},
-	{0x5588, 0xed16, 0x4abf, 0x2193},
-	{0xb461, 0x85f7, 0x347a, 0x1c6a},
-	{0x0975, 0x87b3, 0xd5bf, 0x1876},
-	{0xe85c, 0xcec9, 0x84e7, 0x187d}
-};
-
-
-
-
-/*--- poly_l2() -------------------------------------------------------------+
- |   Base 2 logarithm by a polynomial approximation.                         |
- +---------------------------------------------------------------------------*/
-void
-poly_l2(FPU_REG * arg, FPU_REG * result)
-{
-	short   exponent;
-	char    zero;		/* flag for an Xx == 0 */
-	unsigned short bits, shift;
-	long long Xsq;
-	FPU_REG accum, denom, num, Xx;
-
-
-	exponent = arg->exp - EXP_BIAS;
-
-	accum.tag = TW_Valid;	/* set the tags to Valid */
-
-	if (arg->sigh > (unsigned) 0xb504f334) {
-		/* This is good enough for the computation of the polynomial
-		 * sum, but actually results in a loss of precision for the
-		 * computation of Xx. This will matter only if exponent
-		 * becomes zero. */
-		exponent++;
-		accum.sign = 1;	/* sign to negative */
-		num.exp = EXP_BIAS;	/* needed to prevent errors in div
-					 * routine */
-		reg_u_div(&CONST_1, arg, &num, FULL_PRECISION);
-	} else {
-		accum.sign = 0;	/* set the sign to positive */
-		num.sigl = arg->sigl;	/* copy the mantissa */
-		num.sigh = arg->sigh;
-	}
-
-
-	/* shift num left, lose the ms bit */
-	num.sigh <<= 1;
-	if (num.sigl & 0x80000000)
-		num.sigh |= 1;
-	num.sigl <<= 1;
-
-	denom.sigl = num.sigl;
-	denom.sigh = num.sigh;
-	poly_div4((long long *) &(denom.sigl));
-	denom.sigh += 0x80000000;	/* set the msb */
-	Xx.exp = EXP_BIAS;	/* needed to prevent errors in div routine */
-	reg_u_div(&num, &denom, &Xx, FULL_PRECISION);
-
-	zero = !(Xx.sigh | Xx.sigl);
-
-	mul64((long long *) &Xx.sigl, (long long *) &Xx.sigl, &Xsq);
-	poly_div16(&Xsq);
-
-	accum.exp = -1;		/* exponent of accum */
-
-	/* Do the basic fixed point polynomial evaluation */
-	polynomial((unsigned *) &accum.sigl, (unsigned *) &Xsq, lterms, HIPOWER - 1);
-
-	if (!exponent) {
-		/* If the exponent is zero, then we would lose precision by
-		 * sticking to fixed point computation here */
-		/* We need to re-compute Xx because of loss of precision. */
-		FPU_REG lXx;
-		char    sign;
-
-		sign = accum.sign;
-		accum.sign = 0;
-
-		/* make accum compatible and normalize */
-		accum.exp = EXP_BIAS + accum.exp;
-		normalize(&accum);
-
-		if (zero) {
-			reg_move(&CONST_Z, result);
-		} else {
-			/* we need to re-compute lXx to better accuracy */
-			num.tag = TW_Valid;	/* set the tags to Vaild */
-			num.sign = 0;	/* set the sign to positive */
-			num.exp = EXP_BIAS - 1;
-			if (sign) {
-				/* The argument is of the form 1-x */
-				/* Use  1-1/(1-x) = x/(1-x) */
-				*((long long *) &num.sigl) = -*((long long *) &(arg->sigl));
-				normalize(&num);
-				reg_div(&num, arg, &num, FULL_PRECISION);
-			} else {
-				normalize(&num);
-			}
-
-			denom.tag = TW_Valid;	/* set the tags to Valid */
-			denom.sign = SIGN_POS;	/* set the sign to positive */
-			denom.exp = EXP_BIAS;
-
-			reg_div(&num, &denom, &lXx, FULL_PRECISION);
-
-			reg_u_mul(&lXx, &accum, &accum, FULL_PRECISION);
-
-			reg_u_add(&lXx, &accum, result, FULL_PRECISION);
-
-			normalize(result);
-		}
-
-		result->sign = sign;
-		return;
-	}
-	mul64((long long *) &accum.sigl,
-	    (long long *) &Xx.sigl, (long long *) &accum.sigl);
-
-	*((long long *) (&accum.sigl)) += *((long long *) (&Xx.sigl));
-
-	if (Xx.sigh > accum.sigh) {
-		/* There was an overflow */
-
-		poly_div2((long long *) &accum.sigl);
-		accum.sigh |= 0x80000000;
-		accum.exp++;
-	}
-	/* When we add the exponent to the accum result later, we will require
-	 * that their signs are the same. Here we ensure that this is so. */
-	if (exponent && ((exponent < 0) ^ (accum.sign))) {
-		/* signs are different */
-
-		accum.sign = !accum.sign;
-
-		/* An exceptional case is when accum is zero */
-		if (accum.sigl | accum.sigh) {
-			/* find 1-accum */
-			/* Shift to get exponent == 0 */
-			if (accum.exp < 0) {
-				poly_div2((long long *) &accum.sigl);
-				accum.exp++;
-			}
-			/* Just negate, but throw away the sign */
-			*((long long *) &(accum.sigl)) = -*((long long *) &(accum.sigl));
-			if (exponent < 0)
-				exponent++;
-			else
-				exponent--;
-		}
-	}
-	shift = exponent >= 0 ? exponent : -exponent;
-	bits = 0;
-	if (shift) {
-		if (accum.exp) {
-			accum.exp++;
-			poly_div2((long long *) &accum.sigl);
-		}
-		while (shift) {
-			poly_div2((long long *) &accum.sigl);
-			if (shift & 1)
-				accum.sigh |= 0x80000000;
-			shift >>= 1;
-			bits++;
-		}
-	}
-	/* Convert to 64 bit signed-compatible */
-	accum.exp += bits + EXP_BIAS - 1;
-
-	reg_move(&accum, result);
-	normalize(result);
-
-	return;
-}
-
-
-/*--- poly_l2p1() -----------------------------------------------------------+
- |   Base 2 logarithm by a polynomial approximation.                         |
- |   log2(x+1)                                                               |
- +---------------------------------------------------------------------------*/
-int
-poly_l2p1(FPU_REG * arg, FPU_REG * result)
-{
-	char    sign = 0;
-	long long Xsq;
-	FPU_REG arg_pl1, denom, accum, local_arg, poly_arg;
-
-
-	sign = arg->sign;
-
-	reg_add(arg, &CONST_1, &arg_pl1, FULL_PRECISION);
-
-	if ((arg_pl1.sign) | (arg_pl1.tag)) {	/* We need a valid positive
-						 * number! */
-		return 1;
-	}
-	reg_add(&CONST_1, &arg_pl1, &denom, FULL_PRECISION);
-	reg_div(arg, &denom, &local_arg, FULL_PRECISION);
-	local_arg.sign = 0;	/* Make the sign positive */
-
-	/* Now we need to check that  |local_arg| is less than 3-2*sqrt(2) =
-	 * 0.17157.. = .0xafb0ccc0 * 2^-2 */
-
-	if (local_arg.exp >= EXP_BIAS - 3) {
-		if ((local_arg.exp > EXP_BIAS - 3) ||
-		    (local_arg.sigh > (unsigned) 0xafb0ccc0)) {
-			/* The argument is large */
-			poly_l2(&arg_pl1, result);
-			return 0;
-		}
-	}
-	/* Make a copy of local_arg */
-	reg_move(&local_arg, &poly_arg);
-
-	/* Get poly_arg bits aligned as required */
-	shrx((unsigned *) &(poly_arg.sigl), -(poly_arg.exp - EXP_BIAS + 3));
-
-	mul64((long long *) &(poly_arg.sigl), (long long *) &(poly_arg.sigl), &Xsq);
-	poly_div16(&Xsq);
-
-	/* Do the basic fixed point polynomial evaluation */
-	polynomial((u_int *) &accum.sigl, (unsigned *) &Xsq, lterms, HIPOWER - 1);
-
-	accum.tag = TW_Valid;	/* set the tags to Valid */
-	accum.sign = SIGN_POS;	/* and make accum positive */
-
-	/* make accum compatible and normalize */
-	accum.exp = EXP_BIAS - 1;
-	normalize(&accum);
-
-	reg_u_mul(&local_arg, &accum, &accum, FULL_PRECISION);
-
-	reg_u_add(&local_arg, &accum, result, FULL_PRECISION);
-
-	/* Multiply the result by 2 */
-	result->exp++;
-
-	result->sign = sign;
-
-	return 0;
-}
diff --git a/sys/gnu/arch/i386/fpemul/poly_mul64.s b/sys/gnu/arch/i386/fpemul/poly_mul64.s
deleted file mode 100644
index 231840554d1..00000000000
--- a/sys/gnu/arch/i386/fpemul/poly_mul64.s
+++ /dev/null
@@ -1,131 +0,0 @@
-/*	$OpenBSD: poly_mul64.s,v 1.2 2002/10/12 07:12:58 pvalchev Exp $	*/
-/*
- *  poly_mul64.S
- *
- * Multiply two 64 bit integers.
- *
- * Call from C as:
- *   void mul64(long long *a, long long *b, long long *result)
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *    $FreeBSD: poly_mul64.s,v 1.3 1994/06/10 07:44:39 rich Exp $
- *
- */
-
-
-#include <machine/asm.h>
-
-#include <gnu/arch/i386/fpemul/fpu_asm.h>
-
-.text
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-.globl _C_LABEL(mul64)
-_C_LABEL(mul64):
-	pushl %ebp
-	movl %esp,%ebp
-	subl $16,%esp
-	pushl %esi
-	pushl %ebx
-
-	movl PARAM1,%esi
-	movl PARAM2,%ecx
-	movl PARAM3,%ebx
-
-	xor %eax,%eax
-	movl %eax,-4(%ebp)
-	movl %eax,-8(%ebp)
-
-	movl (%esi),%eax
-	mull (%ecx)
-	movl %eax,-16(%ebp)	/* Not used */
-	movl %edx,-12(%ebp)
-
-	movl (%esi),%eax
-	mull 4(%ecx)
-	addl %eax,-12(%ebp)
-	adcl %edx,-8(%ebp)
-	adcl $0,-4(%ebp)
-
-	movl 4(%esi),%eax
-	mull (%ecx)
-	addl %eax,-12(%ebp)
-	adcl %edx,-8(%ebp)
-	adcl $0,-4(%ebp)
-
-	movl 4(%esi),%eax
-	mull 4(%ecx)
-	addl %eax,-8(%ebp)
-	adcl %edx,-4(%ebp)
-
-	testb $128,-9(%ebp)
-	je L_no_round
-
-	addl $1,-8(%ebp)
-	adcl $0,-4(%ebp)
-
-L_no_round:
-	movl -8(%ebp),%esi
-	movl %esi,(%ebx)
-	movl -4(%ebp),%esi
-	movl %esi,4(%ebx)
-
-	popl %ebx
-	popl %esi
-	leave
-	ret
diff --git a/sys/gnu/arch/i386/fpemul/poly_sin.c b/sys/gnu/arch/i386/fpemul/poly_sin.c
deleted file mode 100644
index 1d52b1b1e46..00000000000
--- a/sys/gnu/arch/i386/fpemul/poly_sin.c
+++ /dev/null
@@ -1,193 +0,0 @@
-/*	$OpenBSD: poly_sin.c,v 1.1 1996/08/27 10:32:55 downsj Exp $	*/
-/*
- *  poly_sin.c
- *
- *  Computation of an approximation of the sin function by a polynomial
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: poly_sin.c,v 1.5 1994/08/31 04:45:22 davidg Exp $
- *
- */
-
-
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/reg_constant.h>
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-
-
-#define	HIPOWER	5
-static unsigned short lterms[HIPOWER][4] =
-{
-	{0x846a, 0x42d1, 0xb544, 0x921f},
-	{0xe110, 0x75aa, 0xbc67, 0x1466},
-	{0x503d, 0xa43f, 0x83c1, 0x000a},
-	{0x8f9d, 0x7a19, 0x00f4, 0x0000},
-	{0xda03, 0x06aa, 0x0000, 0x0000},
-};
-
-static unsigned short negterms[HIPOWER][4] =
-{
-	{0x95ed, 0x2df2, 0xe731, 0xa55d},
-	{0xd159, 0xe62b, 0xd2cc, 0x0132},
-	{0x6342, 0xe9fb, 0x3c60, 0x0000},
-	{0x6256, 0xdf5a, 0x0002, 0x0000},
-	{0xf279, 0x000b, 0x0000, 0x0000},
-};
-
-
-/*--- poly_sine() -----------------------------------------------------------+
- |                                                                           |
- +---------------------------------------------------------------------------*/
-void
-poly_sine(FPU_REG * arg, FPU_REG * result)
-{
-	short   exponent;
-	FPU_REG Xx, Xx2, Xx4, accum, negaccum;
-
-
-	exponent = arg->exp - EXP_BIAS;
-
-	if (arg->tag == TW_Zero) {
-		/* Return 0.0 */
-		reg_move(&CONST_Z, result);
-		return;
-	}
-#ifdef PARANOID
-	if (arg->sign != 0) {	/* Can't hack a number < 0.0 */
-		EXCEPTION(EX_Invalid);
-		reg_move(&CONST_QNaN, result);
-		return;
-	}
-	if (exponent >= 0) {	/* Can't hack a number > 1.0 */
-		if ((exponent == 0) && (arg->sigl == 0) && (arg->sigh == 0x80000000)) {
-			reg_move(&CONST_1, result);
-			return;
-		}
-		EXCEPTION(EX_Invalid);
-		reg_move(&CONST_QNaN, result);
-		return;
-	}
-#endif				/* PARANOID */
-
-	Xx.sigl = arg->sigl;
-	Xx.sigh = arg->sigh;
-	if (exponent < -1) {
-		/* shift the argument right by the required places */
-		if (shrx(&(Xx.sigl), -1 - exponent) >= (unsigned)0x80000000)
-			(*((long long *) (&(Xx.sigl))))++;	/* round up */
-	}
-	mul64((long long *) &(Xx.sigl), (long long *) &(Xx.sigl),
-	    (long long *) &(Xx2.sigl));
-	mul64((long long *) &(Xx2.sigl), (long long *) &(Xx2.sigl),
-	    (long long *) &(Xx4.sigl));
-
-	/* will be a valid positive nr with expon = 0 */
-	*(short *) &(accum.sign) = 0;
-	accum.exp = 0;
-
-	/* Do the basic fixed point polynomial evaluation */
-	polynomial((u_int *) &(accum.sigl), (u_int *)&(Xx4.sigl), lterms, HIPOWER - 1);
-
-	/* will be a valid positive nr with expon = 0 */
-	*(short *) &(negaccum.sign) = 0;
-	negaccum.exp = 0;
-
-	/* Do the basic fixed point polynomial evaluation */
-	polynomial((u_int *) &(negaccum.sigl), (u_int *)&(Xx4.sigl), negterms, HIPOWER - 1);
-	mul64((long long *) &(Xx2.sigl), (long long *) &(negaccum.sigl),
-	    (long long *) &(negaccum.sigl));
-
-	/* Subtract the mantissas */
-	*((long long *) (&(accum.sigl))) -= *((long long *) (&(negaccum.sigl)));
-
-	/* Convert to 64 bit signed-compatible */
-	accum.exp = EXP_BIAS - 1 + accum.exp;
-
-	*(short *) &(result->sign) = *(short *) &(accum.sign);
-	result->exp = accum.exp;
-	result->sigl = accum.sigl;
-	result->sigh = accum.sigh;
-
-	normalize(result);
-
-	reg_mul(result, arg, result, FULL_PRECISION);
-	reg_u_add(result, arg, result, FULL_PRECISION);
-
-	/* A small overflow may be possible... but an illegal result. */
-	if (result->exp >= EXP_BIAS) {
-		if ((result->exp > EXP_BIAS)	/* Larger or equal 2.0 */
-		    ||(result->sigl > 1)	/* Larger than 1.0+msb */
-		    ||(result->sigh != 0x80000000)	/* Much > 1.0 */
-		    ) {
-#ifdef DEBUGGING
-			RE_ENTRANT_CHECK_OFF
-			    printk("\nEXP=%d, MS=%08x, LS=%08x\n", result->exp,
-			    result->sigh, result->sigl);
-			RE_ENTRANT_CHECK_ON
-#endif				/* DEBUGGING */
-			    EXCEPTION(EX_INTERNAL | 0x103);
-		}
-#ifdef DEBUGGING
-		RE_ENTRANT_CHECK_OFF
-		    printk("\n***CORRECTING ILLEGAL RESULT*** in poly_sin() computation\n");
-		printk("EXP=%d, MS=%08x, LS=%08x\n", result->exp,
-		    result->sigh, result->sigl);
-		RE_ENTRANT_CHECK_ON
-#endif				/* DEBUGGING */
-
-		    result->sigl = 0;	/* Truncate the result to 1.00 */
-	}
-}
diff --git a/sys/gnu/arch/i386/fpemul/poly_tan.c b/sys/gnu/arch/i386/fpemul/poly_tan.c
deleted file mode 100644
index 038dc04535f..00000000000
--- a/sys/gnu/arch/i386/fpemul/poly_tan.c
+++ /dev/null
@@ -1,230 +0,0 @@
-/*	$OpenBSD: poly_tan.c,v 1.1 1996/08/27 10:32:55 downsj Exp $	*/
-/*
- *  poly_tan.c
- *
- * Compute the tan of a FPU_REG, using a polynomial approximation.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *      $FreeBSD: poly_tan.c,v 1.5 1995/05/30 07:57:52 rgrimes Exp $
- *
- */
-
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/reg_constant.h>
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-
-
-#define	HIPOWERop	3	/* odd poly, positive terms */
-static unsigned short oddplterms[HIPOWERop][4] =
-{
-	{0x846a, 0x42d1, 0xb544, 0x921f},
-	{0x6fb2, 0x0215, 0x95c0, 0x099c},
-	{0xfce6, 0x0cc8, 0x1c9a, 0x0000}
-};
-#define	HIPOWERon	2	/* odd poly, negative terms */
-static unsigned short oddnegterms[HIPOWERon][4] =
-{
-	{0x6906, 0xe205, 0x25c8, 0x8838},
-	{0x1dd7, 0x3fe3, 0x944e, 0x002c}
-};
-#define	HIPOWERep	2	/* even poly, positive terms */
-static unsigned short evenplterms[HIPOWERep][4] =
-{
-	{0xdb8f, 0x3761, 0x1432, 0x2acf},
-	{0x16eb, 0x13c1, 0x3099, 0x0003}
-};
-#define	HIPOWERen	2	/* even poly, negative terms */
-static unsigned short evennegterms[HIPOWERen][4] =
-{
-	{0x3a7c, 0xe4c5, 0x7f87, 0x2945},
-	{0x572b, 0x664c, 0xc543, 0x018c}
-};
-
-
-/*--- poly_tan() ------------------------------------------------------------+
- |                                                                           |
- +---------------------------------------------------------------------------*/
-void
-poly_tan(FPU_REG * arg, FPU_REG * y_reg)
-{
-	char    invert = 0;
-	short   exponent;
-	FPU_REG odd_poly, even_poly, pos_poly, neg_poly;
-	FPU_REG argSq;
-	long long arg_signif, argSqSq;
-
-
-	exponent = arg->exp - EXP_BIAS;
-
-	if (arg->tag == TW_Zero) {
-		/* Return 0.0 */
-		reg_move(&CONST_Z, y_reg);
-		return;
-	}
-	if (exponent >= -1) {
-		/* argument is in the range  [0.5 .. 1.0] */
-		if (exponent >= 0) {
-#ifdef PARANOID
-			if ((exponent == 0) &&
-			    (arg->sigl == 0) && (arg->sigh == 0x80000000))
-#endif				/* PARANOID */
-			{
-				arith_overflow(y_reg);
-				return;
-			}
-#ifdef PARANOID
-			EXCEPTION(EX_INTERNAL | 0x104);	/* There must be a logic
-							 * error */
-			return;
-#endif				/* PARANOID */
-		}
-		/* The argument is in the range  [0.5 .. 1.0) */
-		/* Convert the argument to a number in the range  (0.0 .. 0.5] */
-		*((long long *) (&arg->sigl)) = -*((long long *) (&arg->sigl));
-		normalize(arg);	/* Needed later */
-		exponent = arg->exp - EXP_BIAS;
-		invert = 1;
-	}
-#ifdef PARANOID
-	if (arg->sign != 0) {	/* Can't hack a number < 0.0 */
-		arith_invalid(y_reg);
-		return;
-	}			/* Need a positive number */
-#endif				/* PARANOID */
-
-	*(long long *) &arg_signif = *(long long *) &(arg->sigl);
-	if (exponent < -1) {
-		/* shift the argument right by the required places */
-		if (shrx(&arg_signif, -1 - exponent) >= (unsigned)0x80000000)
-			arg_signif++;	/* round up */
-	}
-	mul64(&arg_signif, &arg_signif, (long long *) (&argSq.sigl));
-	mul64((long long *) (&argSq.sigl), (long long *) (&argSq.sigl), &argSqSq);
-
-	/* will be a valid positive nr with expon = 0 */
-	*(short *) &(pos_poly.sign) = 0;
-	pos_poly.exp = EXP_BIAS;
-
-	/* Do the basic fixed point polynomial evaluation */
-	polynomial((u_int *) &pos_poly.sigl, (unsigned *) &argSqSq, oddplterms, HIPOWERop - 1);
-
-	/* will be a valid positive nr with expon = 0 */
-	*(short *) &(neg_poly.sign) = 0;
-	neg_poly.exp = EXP_BIAS;
-
-	/* Do the basic fixed point polynomial evaluation */
-	polynomial((u_int *) &neg_poly.sigl, (unsigned *) &argSqSq, oddnegterms, HIPOWERon - 1);
-	mul64((long long *) (&argSq.sigl), (long long *) (&neg_poly.sigl),
-	    (long long *) (&neg_poly.sigl));
-
-	/* Subtract the mantissas */
-	*((long long *) (&pos_poly.sigl)) -= *((long long *) (&neg_poly.sigl));
-
-	/* Convert to 64 bit signed-compatible */
-	pos_poly.exp -= 1;
-
-	reg_move(&pos_poly, &odd_poly);
-	normalize(&odd_poly);
-
-	reg_mul(&odd_poly, arg, &odd_poly, FULL_PRECISION);
-	reg_u_add(&odd_poly, arg, &odd_poly, FULL_PRECISION);	/* This is just the odd
-								 * polynomial */
-
-
-	/* will be a valid positive nr with expon = 0 */
-	*(short *) &(pos_poly.sign) = 0;
-	pos_poly.exp = EXP_BIAS;
-
-	/* Do the basic fixed point polynomial evaluation */
-	polynomial((u_int *) &pos_poly.sigl, (unsigned *) &argSqSq, evenplterms, HIPOWERep - 1);
-	mul64((long long *) (&argSq.sigl),
-	    (long long *) (&pos_poly.sigl), (long long *) (&pos_poly.sigl));
-
-	/* will be a valid positive nr with expon = 0 */
-	*(short *) &(neg_poly.sign) = 0;
-	neg_poly.exp = EXP_BIAS;
-
-	/* Do the basic fixed point polynomial evaluation */
-	polynomial((u_int *) &neg_poly.sigl, (unsigned *) &argSqSq, evennegterms, HIPOWERen - 1);
-
-	/* Subtract the mantissas */
-	*((long long *) (&neg_poly.sigl)) -= *((long long *) (&pos_poly.sigl));
-	/* and multiply by argSq */
-
-	/* Convert argSq to a valid reg number */
-	*(short *) &(argSq.sign) = 0;
-	argSq.exp = EXP_BIAS - 1;
-	normalize(&argSq);
-
-	/* Convert to 64 bit signed-compatible */
-	neg_poly.exp -= 1;
-
-	reg_move(&neg_poly, &even_poly);
-	normalize(&even_poly);
-
-	reg_mul(&even_poly, &argSq, &even_poly, FULL_PRECISION);
-	reg_add(&even_poly, &argSq, &even_poly, FULL_PRECISION);
-	reg_sub(&CONST_1, &even_poly, &even_poly, FULL_PRECISION);	/* This is just the even
-									 * polynomial */
-
-	/* Now ready to copy the results */
-	if (invert) {
-		reg_div(&even_poly, &odd_poly, y_reg, FULL_PRECISION);
-	} else {
-		reg_div(&odd_poly, &even_poly, y_reg, FULL_PRECISION);
-	}
-
-}
diff --git a/sys/gnu/arch/i386/fpemul/polynomial.s b/sys/gnu/arch/i386/fpemul/polynomial.s
deleted file mode 100644
index e6a289bb012..00000000000
--- a/sys/gnu/arch/i386/fpemul/polynomial.s
+++ /dev/null
@@ -1,199 +0,0 @@
-/*	$OpenBSD: polynomial.s,v 1.3 2004/01/13 18:08:48 espie Exp $	*/
-/*
- *  polynomial.S
- *
- * Fixed point arithmetic polynomial evaluation.
- *
- * Call from C as:
- *   void polynomial(unsigned accum[], unsigned x[], unsigned terms[][2],
- *                   int n)
- *
- * Computes:
- * terms[0] + (terms[1] + (terms[2] + ... + (terms[n-1]*x)*x)*x)*x) ... )*x
- * The result is returned in accum.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: polynomial.s,v 1.3 1994/06/10 07:44:43 rich Exp $
- *
- */
-
-	.file	"fpolynom.s"
-
-#include <machine/asm.h>
-
-#include <gnu/arch/i386/fpemul/fpu_asm.h>
-
-
-/*	#define	EXTRA_PRECISE*/
-
-#define	TERM_SIZE	$8
-
-
-.text
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-.globl _C_LABEL(polynomial)
-_C_LABEL(polynomial):
-	pushl	%ebp
-	movl	%esp,%ebp
-	subl	$32,%esp
-	pushl	%esi
-	pushl	%edi
-	pushl	%ebx
-
-	movl	PARAM1,%esi		/* accum */
-	movl	PARAM2,%edi		/* x */
-	movl	PARAM3,%ebx		/* terms */
-	movl	PARAM4,%ecx		/* n */
-
-	movl	TERM_SIZE,%eax
-	mull	%ecx
-	movl	%eax,%ecx
-
-	movl	4(%ebx,%ecx,1),%edx	/* terms[n] */
-	movl	%edx,-20(%ebp)
-	movl	(%ebx,%ecx,1),%edx	/* terms[n] */
-	movl	%edx,-24(%ebp)		
-	xor	%eax,%eax
-	movl	%eax,-28(%ebp)
-
-	subl	TERM_SIZE,%ecx
-	js	L_accum_done
-
-L_accum_loop:
-	xor	%eax,%eax
-	movl	%eax,-4(%ebp)
-	movl	%eax,-8(%ebp)
-
-#ifdef EXTRA_PRECISE
-	movl	-28(%ebp),%eax
-	mull	4(%edi)			/* x ms long */
-	movl	%edx,-12(%ebp)
-#endif /* EXTRA_PRECISE */
-
-	movl	-24(%ebp),%eax
-	mull	(%edi)			/* x ls long */
-/*	movl	%eax,-16(%ebp)	*/	/* Not needed */
-	addl	%edx,-12(%ebp)
-	adcl	$0,-8(%ebp)
-
-	movl	-24(%ebp),%eax
-	mull	4(%edi)			/* x ms long */
-	addl	%eax,-12(%ebp)
-	adcl	%edx,-8(%ebp)
-	adcl	$0,-4(%ebp)
-
-	movl	-20(%ebp),%eax
-	mull	(%edi)
-	addl	%eax,-12(%ebp)
-	adcl	%edx,-8(%ebp)
-	adcl	$0,-4(%ebp)
-
-	movl	-20(%ebp),%eax
-	mull	4(%edi)
-	addl	%eax,-8(%ebp)
-	adcl	%edx,-4(%ebp)
-
-/* Now add the next term */
-	movl	(%ebx,%ecx,1),%eax
-	addl	%eax,-8(%ebp)
-	movl	4(%ebx,%ecx,1),%eax
-	adcl	%eax,-4(%ebp)
-
-/* And put into the second register */
-	movl	-4(%ebp),%eax
-	movl	%eax,-20(%ebp)
-	movl	-8(%ebp),%eax
-	movl	%eax,-24(%ebp)
-
-#ifdef EXTRA_PRECISE
-	movl	-12(%ebp),%eax
-	movl	%eax,-28(%ebp)
-#else
-	testb	$128,-25(%ebp)
-	je	L_no_poly_round
-
-	addl	$1,-24(%ebp)
-	adcl	$0,-20(%ebp)
-L_no_poly_round:
-#endif /* EXTRA_PRECISE */
-
-	subl	TERM_SIZE,%ecx
-	jns	L_accum_loop
-
-L_accum_done:
-#ifdef EXTRA_PRECISE
-/* And round the result */
-	testb	$128,-25(%ebp)
-	je	L_poly_done
-
-	addl	$1,-24(%ebp)
-	adcl	$0,-20(%ebp)
-#endif /* EXTRA_PRECISE */
-
-L_poly_done:
-	movl	-24(%ebp),%eax
-	movl	%eax,(%esi)
-	movl	-20(%ebp),%eax
-	movl	%eax,4(%esi)
-
-	popl	%ebx
-	popl	%edi
-	popl	%esi
-	leave
-	ret
diff --git a/sys/gnu/arch/i386/fpemul/reg_add_sub.c b/sys/gnu/arch/i386/fpemul/reg_add_sub.c
deleted file mode 100644
index fce16348be6..00000000000
--- a/sys/gnu/arch/i386/fpemul/reg_add_sub.c
+++ /dev/null
@@ -1,304 +0,0 @@
-/*	$OpenBSD: reg_add_sub.c,v 1.1 1996/08/27 10:32:56 downsj Exp $	*/
-/*
- *  reg_add_sub.c
- *
- * Functions to add or subtract two registers and put the result in a third.
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: reg_add_sub.c,v 1.3 1994/06/10 07:44:44 rich Exp $
- *
- */
-
-/*---------------------------------------------------------------------------+
- | For each function, the destination may be any FPU_REG, including one of   |
- | the source FPU_REGs.                                                      |
- +---------------------------------------------------------------------------*/
-
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/reg_constant.h>
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-#include <gnu/arch/i386/fpemul/fpu_system.h>
-
-
-void
-reg_add(FPU_REG * a, FPU_REG * b, FPU_REG * dest, int control_w)
-{
-	int     diff;
-
-	if (!(a->tag | b->tag)) {
-		/* Both registers are valid */
-		if (!(a->sign ^ b->sign)) {
-			/* signs are the same */
-			reg_u_add(a, b, dest, control_w);
-			dest->sign = a->sign;
-			return;
-		}
-		/* The signs are different, so do a subtraction */
-		diff = a->exp - b->exp;
-		if (!diff) {
-			diff = a->sigh - b->sigh;	/* Works only if ms bits
-							 * are identical */
-			if (!diff) {
-				diff = a->sigl > b->sigl;
-				if (!diff)
-					diff = -(a->sigl < b->sigl);
-			}
-		}
-		if (diff > 0) {
-			reg_u_sub(a, b, dest, control_w);
-			dest->sign = a->sign;
-		} else
-			if (diff == 0) {
-				reg_move(&CONST_Z, dest);
-				/* sign depends upon rounding mode */
-				dest->sign = ((control_w & CW_RC) != RC_DOWN)
-				    ? SIGN_POS : SIGN_NEG;
-			} else {
-				reg_u_sub(b, a, dest, control_w);
-				dest->sign = b->sign;
-			}
-		return;
-	} else {
-		if ((a->tag == TW_NaN) || (b->tag == TW_NaN)) {
-			real_2op_NaN(a, b, dest);
-			return;
-		} else
-			if (a->tag == TW_Zero) {
-				if (b->tag == TW_Zero) {
-					char    different_signs = a->sign ^ b->sign;
-					/* Both are zero, result will be zero. */
-					reg_move(a, dest);
-					if (different_signs) {
-						/* Signs are different. */
-						/* Sign of answer depends upon
-						 * rounding mode. */
-						dest->sign = ((control_w & CW_RC) != RC_DOWN)
-						    ? SIGN_POS : SIGN_NEG;
-					}
-				} else {
-#ifdef DENORM_OPERAND
-					if ((b->tag == TW_Valid) && (b->exp <= EXP_UNDER) &&
-					    denormal_operand())
-						return;
-#endif				/* DENORM_OPERAND */
-					reg_move(b, dest);
-				}
-				return;
-			} else
-				if (b->tag == TW_Zero) {
-#ifdef DENORM_OPERAND
-					if ((a->tag == TW_Valid) && (a->exp <= EXP_UNDER) &&
-					    denormal_operand())
-						return;
-#endif				/* DENORM_OPERAND */
-					reg_move(a, dest);
-					return;
-				} else
-					if (a->tag == TW_Infinity) {
-						if (b->tag != TW_Infinity) {
-#ifdef DENORM_OPERAND
-							if ((b->tag == TW_Valid) && (b->exp <= EXP_UNDER) &&
-							    denormal_operand())
-								return;
-#endif				/* DENORM_OPERAND */
-							reg_move(a, dest);
-							return;
-						}
-						if (a->sign == b->sign) {
-							/* They are both + or
-							 * - infinity */
-							reg_move(a, dest);
-							return;
-						}
-						arith_invalid(dest);	/* Infinity-Infinity is
-									 * undefined. */
-						return;
-					} else
-						if (b->tag == TW_Infinity) {
-#ifdef DENORM_OPERAND
-							if ((a->tag == TW_Valid) && (a->exp <= EXP_UNDER) &&
-							    denormal_operand())
-								return;
-#endif				/* DENORM_OPERAND */
-							reg_move(b, dest);
-							return;
-						}
-	}
-#ifdef PARANOID
-	EXCEPTION(EX_INTERNAL | 0x101);
-#endif
-}
-
-
-/* Subtract b from a.  (a-b) -> dest */
-void
-reg_sub(FPU_REG * a, FPU_REG * b, FPU_REG * dest, int control_w)
-{
-	int     diff;
-
-	if (!(a->tag | b->tag)) {
-		/* Both registers are valid */
-		diff = a->exp - b->exp;
-		if (!diff) {
-			diff = a->sigh - b->sigh;	/* Works only if ms bits
-							 * are identical */
-			if (!diff) {
-				diff = a->sigl > b->sigl;
-				if (!diff)
-					diff = -(a->sigl < b->sigl);
-			}
-		}
-		switch (a->sign * 2 + b->sign) {
-		case 0:	/* P - P */
-		case 3:	/* N - N */
-			if (diff > 0) {
-				reg_u_sub(a, b, dest, control_w);
-				dest->sign = a->sign;
-			} else
-				if (diff == 0) {
-#ifdef DENORM_OPERAND
-					if ((b->tag == TW_Valid) && (b->exp <= EXP_UNDER) &&
-					    denormal_operand())
-						return;
-#endif				/* DENORM_OPERAND */
-					reg_move(&CONST_Z, dest);
-					/* sign depends upon rounding mode */
-					dest->sign = ((control_w & CW_RC) != RC_DOWN)
-					    ? SIGN_POS : SIGN_NEG;
-				} else {
-					reg_u_sub(b, a, dest, control_w);
-					dest->sign = a->sign ^ SIGN_POS ^ SIGN_NEG;
-				}
-			return;
-		case 1:	/* P - N */
-			reg_u_add(a, b, dest, control_w);
-			dest->sign = SIGN_POS;
-			return;
-		case 2:	/* N - P */
-			reg_u_add(a, b, dest, control_w);
-			dest->sign = SIGN_NEG;
-			return;
-		}
-	} else {
-		if ((a->tag == TW_NaN) || (b->tag == TW_NaN)) {
-			real_2op_NaN(a, b, dest);
-			return;
-		} else
-			if (b->tag == TW_Zero) {
-				if (a->tag == TW_Zero) {
-					char    same_signs = !(a->sign ^ b->sign);
-					/* Both are zero, result will be zero. */
-					reg_move(a, dest);	/* Answer for different
-								 * signs. */
-					if (same_signs) {
-						/* Sign depends upon rounding
-						 * mode */
-						dest->sign = ((control_w & CW_RC) != RC_DOWN)
-						    ? SIGN_POS : SIGN_NEG;
-					}
-				} else {
-#ifdef DENORM_OPERAND
-					if ((a->tag == TW_Valid) && (a->exp <= EXP_UNDER) &&
-					    denormal_operand())
-						return;
-#endif				/* DENORM_OPERAND */
-					reg_move(a, dest);
-				}
-				return;
-			} else
-				if (a->tag == TW_Zero) {
-#ifdef DENORM_OPERAND
-					if ((b->tag == TW_Valid) && (b->exp <= EXP_UNDER) &&
-					    denormal_operand())
-						return;
-#endif				/* DENORM_OPERAND */
-					reg_move(b, dest);
-					dest->sign ^= SIGN_POS ^ SIGN_NEG;
-					return;
-				} else
-					if (a->tag == TW_Infinity) {
-						if (b->tag != TW_Infinity) {
-#ifdef DENORM_OPERAND
-							if ((b->tag == TW_Valid) && (b->exp <= EXP_UNDER) &&
-							    denormal_operand())
-								return;
-#endif				/* DENORM_OPERAND */
-							reg_move(a, dest);
-							return;
-						}
-						/* Both args are Infinity */
-						if (a->sign == b->sign) {
-							arith_invalid(dest);	/* Infinity-Infinity is
-										 * undefined. */
-							return;
-						}
-						reg_move(a, dest);
-						return;
-					} else
-						if (b->tag == TW_Infinity) {
-#ifdef DENORM_OPERAND
-							if ((a->tag == TW_Valid) && (a->exp <= EXP_UNDER) &&
-							    denormal_operand())
-								return;
-#endif				/* DENORM_OPERAND */
-							reg_move(b, dest);
-							dest->sign ^= SIGN_POS ^ SIGN_NEG;
-							return;
-						}
-	}
-#ifdef PARANOID
-	EXCEPTION(EX_INTERNAL | 0x110);
-#endif
-}
diff --git a/sys/gnu/arch/i386/fpemul/reg_compare.c b/sys/gnu/arch/i386/fpemul/reg_compare.c
deleted file mode 100644
index 1130326ca2c..00000000000
--- a/sys/gnu/arch/i386/fpemul/reg_compare.c
+++ /dev/null
@@ -1,386 +0,0 @@
-/*	$OpenBSD: reg_compare.c,v 1.2 2003/07/30 21:30:31 jason Exp $	*/
-/*
- *  reg_compare.c
- *
- * Compare two floating point registers
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: reg_compare.c,v 1.5 1995/05/30 07:57:54 rgrimes Exp $
- *
- */
-
-/*---------------------------------------------------------------------------+
- | compare() is the core FPU_REG comparison function                         |
- +---------------------------------------------------------------------------*/
-#include <sys/param.h>
-#include <sys/proc.h>
-#include <sys/systm.h>
-#include <sys/user.h>
-#include <machine/cpu.h>
-#include <machine/pcb.h>
-
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/fpu_system.h>
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-#include <gnu/arch/i386/fpemul/status_w.h>
-
-
-int
-compare(FPU_REG * b)
-{
-	int     diff;
-
-	if (FPU_st0_ptr->tag | b->tag) {
-		if (FPU_st0_ptr->tag == TW_Zero) {
-			if (b->tag == TW_Zero)
-				return COMP_A_eq_B;
-			if (b->tag == TW_Valid) {
-#ifdef DENORM_OPERAND
-				if ((b->exp <= EXP_UNDER) && (denormal_operand()))
-					return COMP_Denormal;
-#endif				/* DENORM_OPERAND */
-				return (b->sign == SIGN_POS) ? COMP_A_lt_B : COMP_A_gt_B;
-			}
-		} else
-			if (b->tag == TW_Zero) {
-				if (FPU_st0_ptr->tag == TW_Valid) {
-#ifdef DENORM_OPERAND
-					if ((FPU_st0_ptr->exp <= EXP_UNDER) && (denormal_operand()))
-						return COMP_Denormal;
-#endif				/* DENORM_OPERAND */
-					return (FPU_st0_ptr->sign == SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B;
-				}
-			}
-		if (FPU_st0_ptr->tag == TW_Infinity) {
-			if ((b->tag == TW_Valid) || (b->tag == TW_Zero)) {
-#ifdef DENORM_OPERAND
-				if ((b->tag == TW_Valid) && (b->exp <= EXP_UNDER)
-				    && (denormal_operand()))
-					return COMP_Denormal;
-#endif				/* DENORM_OPERAND */
-				return (FPU_st0_ptr->sign == SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B;
-			} else
-				if (b->tag == TW_Infinity) {
-					/* The 80486 book says that infinities
-					 * can be equal! */
-					return (FPU_st0_ptr->sign == b->sign) ? COMP_A_eq_B :
-					    ((FPU_st0_ptr->sign == SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B);
-				}
-			/* Fall through to the NaN code */
-		} else
-			if (b->tag == TW_Infinity) {
-				if ((FPU_st0_ptr->tag == TW_Valid) || (FPU_st0_ptr->tag == TW_Zero)) {
-#ifdef DENORM_OPERAND
-					if ((FPU_st0_ptr->tag == TW_Valid)
-					    && (FPU_st0_ptr->exp <= EXP_UNDER)
-					    && (denormal_operand()))
-						return COMP_Denormal;
-#endif				/* DENORM_OPERAND */
-					return (b->sign == SIGN_POS) ? COMP_A_lt_B : COMP_A_gt_B;
-				}
-				/* Fall through to the NaN code */
-			}
-		/* The only possibility now should be that one of the
-		 * arguments is a NaN */
-		if ((FPU_st0_ptr->tag == TW_NaN) || (b->tag == TW_NaN)) {
-			if (((FPU_st0_ptr->tag == TW_NaN) && !(FPU_st0_ptr->sigh & 0x40000000))
-			    || ((b->tag == TW_NaN) && !(b->sigh & 0x40000000)))
-				/* At least one arg is a signaling NaN */
-				return COMP_No_Comp | COMP_SNaN | COMP_NaN;
-			else
-				/* Neither is a signaling NaN */
-				return COMP_No_Comp | COMP_NaN;
-		}
-		EXCEPTION(EX_Invalid);
-	}
-#ifdef PARANOID
-	if (!(FPU_st0_ptr->sigh & 0x80000000))
-		EXCEPTION(EX_Invalid);
-	if (!(b->sigh & 0x80000000))
-		EXCEPTION(EX_Invalid);
-#endif				/* PARANOID */
-
-#ifdef DENORM_OPERAND
-	if (((FPU_st0_ptr->exp <= EXP_UNDER) ||
-		(b->exp <= EXP_UNDER)) && (denormal_operand()))
-		return COMP_Denormal;
-#endif				/* DENORM_OPERAND */
-
-	if (FPU_st0_ptr->sign != b->sign)
-		return (FPU_st0_ptr->sign == SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B;
-
-	diff = FPU_st0_ptr->exp - b->exp;
-	if (diff == 0) {
-		diff = FPU_st0_ptr->sigh - b->sigh;	/* Works only if ms bits
-							 * are identical */
-		if (diff == 0) {
-			diff = FPU_st0_ptr->sigl > b->sigl;
-			if (diff == 0)
-				diff = -(FPU_st0_ptr->sigl < b->sigl);
-		}
-	}
-	if (diff > 0)
-		return (FPU_st0_ptr->sign == SIGN_POS) ? COMP_A_gt_B : COMP_A_lt_B;
-	if (diff < 0)
-		return (FPU_st0_ptr->sign == SIGN_POS) ? COMP_A_lt_B : COMP_A_gt_B;
-	return COMP_A_eq_B;
-
-}
-
-
-/* This function requires that st(0) is not empty */
-int
-compare_st_data(void)
-{
-	int     f = 0, c;
-
-	c = compare(&FPU_loaded_data);
-
-	if (c & (COMP_NaN | COMP_Denormal)) {
-		if (c & COMP_NaN) {
-			EXCEPTION(EX_Invalid);
-			f = SW_C3 | SW_C2 | SW_C0;
-		} else {
-			/* One of the operands is a de-normal */
-			return 0;
-		}
-	} else
-		switch (c) {
-		case COMP_A_lt_B:
-			f = SW_C0;
-			break;
-		case COMP_A_eq_B:
-			f = SW_C3;
-			break;
-		case COMP_A_gt_B:
-			f = 0;
-			break;
-		case COMP_No_Comp:
-			f = SW_C3 | SW_C2 | SW_C0;
-			break;
-#ifdef PARANOID
-		default:
-			EXCEPTION(EX_INTERNAL | 0x121);
-			f = SW_C3 | SW_C2 | SW_C0;
-			break;
-#endif				/* PARANOID */
-		}
-	setcc(f);
-	return 1;
-}
-
-
-static int
-compare_st_st(int nr)
-{
-	int     f = 0, c;
-
-	if (!NOT_EMPTY_0 || !NOT_EMPTY(nr)) {
-		setcc(SW_C3 | SW_C2 | SW_C0);
-		/* Stack fault */
-		EXCEPTION(EX_StackUnder);
-		return control_word & CW_Invalid;
-	}
-	c = compare(&st(nr));
-	if (c & (COMP_NaN | COMP_Denormal)) {
-		if (c & COMP_NaN) {
-			setcc(SW_C3 | SW_C2 | SW_C0);
-			EXCEPTION(EX_Invalid);
-			return control_word & CW_Invalid;
-		} else {
-			/* One of the operands is a de-normal */
-			return control_word & CW_Denormal;
-		}
-	} else
-		switch (c) {
-		case COMP_A_lt_B:
-			f = SW_C0;
-			break;
-		case COMP_A_eq_B:
-			f = SW_C3;
-			break;
-		case COMP_A_gt_B:
-			f = 0;
-			break;
-		case COMP_No_Comp:
-			f = SW_C3 | SW_C2 | SW_C0;
-			break;
-#ifdef PARANOID
-		default:
-			EXCEPTION(EX_INTERNAL | 0x122);
-			f = SW_C3 | SW_C2 | SW_C0;
-			break;
-#endif				/* PARANOID */
-		}
-	setcc(f);
-	return 1;
-}
-
-
-static int
-compare_u_st_st(int nr)
-{
-	int     f = 0, c;
-
-	if (!NOT_EMPTY_0 || !NOT_EMPTY(nr)) {
-		setcc(SW_C3 | SW_C2 | SW_C0);
-		/* Stack fault */
-		EXCEPTION(EX_StackUnder);
-		return control_word & CW_Invalid;
-	}
-	c = compare(&st(nr));
-	if (c & (COMP_NaN | COMP_Denormal)) {
-		if (c & COMP_NaN) {
-			setcc(SW_C3 | SW_C2 | SW_C0);
-			if (c & COMP_SNaN) {	/* This is the only difference
-						 * between un-ordered and
-						 * ordinary comparisons */
-				EXCEPTION(EX_Invalid);
-				return control_word & CW_Invalid;
-			}
-			return 1;
-		} else {
-			/* One of the operands is a de-normal */
-			return control_word & CW_Denormal;
-		}
-	} else
-		switch (c) {
-		case COMP_A_lt_B:
-			f = SW_C0;
-			break;
-		case COMP_A_eq_B:
-			f = SW_C3;
-			break;
-		case COMP_A_gt_B:
-			f = 0;
-			break;
-		case COMP_No_Comp:
-			f = SW_C3 | SW_C2 | SW_C0;
-			break;
-#ifdef PARANOID
-		default:
-			EXCEPTION(EX_INTERNAL | 0x123);
-			f = SW_C3 | SW_C2 | SW_C0;
-			break;
-#endif				/* PARANOID */
-		}
-	setcc(f);
-	return 1;
-}
-/*---------------------------------------------------------------------------*/
-
-void
-fcom_st()
-{
-	/* fcom st(i) */
-	compare_st_st(FPU_rm);
-}
-
-
-void
-fcompst()
-{
-	/* fcomp st(i) */
-	if (compare_st_st(FPU_rm))
-		pop();
-}
-
-
-void
-fcompp()
-{
-	/* fcompp */
-	if (FPU_rm != 1)
-		return Un_impl();
-	if (compare_st_st(1)) {
-		pop();
-		FPU_st0_ptr = &st(0);
-		pop();
-	}
-}
-
-
-void
-fucom_()
-{
-	/* fucom st(i) */
-	compare_u_st_st(FPU_rm);
-
-}
-
-
-void
-fucomp()
-{
-	/* fucomp st(i) */
-	if (compare_u_st_st(FPU_rm))
-		pop();
-}
-
-
-void
-fucompp()
-{
-	/* fucompp */
-	if (FPU_rm == 1) {
-		if (compare_u_st_st(1)) {
-			pop();
-			FPU_st0_ptr = &st(0);
-			pop();
-		}
-	} else
-		Un_impl();
-}
diff --git a/sys/gnu/arch/i386/fpemul/reg_constant.c b/sys/gnu/arch/i386/fpemul/reg_constant.c
deleted file mode 100644
index 0e18481e5e5..00000000000
--- a/sys/gnu/arch/i386/fpemul/reg_constant.c
+++ /dev/null
@@ -1,173 +0,0 @@
-/*	$OpenBSD: reg_constant.c,v 1.2 2003/07/30 21:30:31 jason Exp $	*/
-/*
- *  reg_constant.c
- *
- * All of the constant FPU_REGs
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $id:$
- *
- */
-
-
-
-#include <sys/param.h>
-#include <sys/proc.h>
-#include <sys/systm.h>
-#include <sys/user.h>
-#include <machine/cpu.h>
-#include <machine/pcb.h>
-
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/fpu_system.h>
-#include <gnu/arch/i386/fpemul/status_w.h>
-#include <gnu/arch/i386/fpemul/reg_constant.h>
-
-
-FPU_REG CONST_1 = {SIGN_POS, TW_Valid, EXP_BIAS,
-0x00000000, 0x80000000};
-static FPU_REG CONST_L2T = {SIGN_POS, TW_Valid, EXP_BIAS + 1,
-0xcd1b8afe, 0xd49a784b};
-static FPU_REG CONST_L2E = {SIGN_POS, TW_Valid, EXP_BIAS,
-0x5c17f0bc, 0xb8aa3b29};
-FPU_REG CONST_PI = {SIGN_POS, TW_Valid, EXP_BIAS + 1,
-0x2168c235, 0xc90fdaa2};
-FPU_REG CONST_PI2 = {SIGN_POS, TW_Valid, EXP_BIAS,
-0x2168c235, 0xc90fdaa2};
-FPU_REG CONST_PI4 = {SIGN_POS, TW_Valid, EXP_BIAS - 1,
-0x2168c235, 0xc90fdaa2};
-static FPU_REG CONST_LG2 = {SIGN_POS, TW_Valid, EXP_BIAS - 2,
-0xfbcff799, 0x9a209a84};
-FPU_REG CONST_LN2 = {SIGN_POS, TW_Valid, EXP_BIAS - 1,
-0xd1cf79ac, 0xb17217f7};
-/* Only the sign (and tag) is used in internal zeroes */
-FPU_REG CONST_Z = {SIGN_POS, TW_Zero, 0, 0x0, 0x0};
-/* Only the sign and significand (and tag) are used in internal NaNs */
-/* The 80486 never generates one of these
-FPU_REG CONST_SNAN = { SIGN_POS, TW_NaN, EXP_OVER, 0x00000001, 0x80000000 };
- */
-/* This is the real indefinite QNaN */
-FPU_REG CONST_QNaN = {SIGN_NEG, TW_NaN, EXP_OVER, 0x00000000, 0xC0000000};
-/* Only the sign (and tag) is used in internal infinities */
-FPU_REG CONST_INF = {SIGN_POS, TW_Infinity, EXP_OVER, 0x00000000, 0x80000000};
-
-
-
-static void
-fld_const(FPU_REG * c)
-{
-	FPU_REG *st_new_ptr;
-
-	if (STACK_OVERFLOW) {
-		stack_overflow();
-		return;
-	}
-	push();
-	reg_move(c, FPU_st0_ptr);
-	status_word &= ~SW_C1;
-}
-
-
-static void
-fld1(void)
-{
-	fld_const(&CONST_1);
-}
-
-static void
-fldl2t(void)
-{
-	fld_const(&CONST_L2T);
-}
-
-static void
-fldl2e(void)
-{
-	fld_const(&CONST_L2E);
-}
-
-static void
-fldpi(void)
-{
-	fld_const(&CONST_PI);
-}
-
-static void
-fldlg2(void)
-{
-	fld_const(&CONST_LG2);
-}
-
-static void
-fldln2(void)
-{
-	fld_const(&CONST_LN2);
-}
-
-static void
-fldz(void)
-{
-	fld_const(&CONST_Z);
-}
-
-static FUNC constants_table[] = {
-	fld1, fldl2t, fldl2e, fldpi, fldlg2, fldln2, fldz, Un_impl
-};
-
-void
-fconst(void)
-{
-	(constants_table[FPU_rm]) ();
-}
diff --git a/sys/gnu/arch/i386/fpemul/reg_constant.h b/sys/gnu/arch/i386/fpemul/reg_constant.h
deleted file mode 100644
index bf0a155df99..00000000000
--- a/sys/gnu/arch/i386/fpemul/reg_constant.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/*	$OpenBSD: reg_constant.h,v 1.1 1996/08/27 10:32:58 downsj Exp $	*/
-/*
- *  reg_constant.h
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *    $FreeBSD: reg_constant.h,v 1.3 1994/06/10 07:44:49 rich Exp $
- *
- */
-
-#ifndef _REG_CONSTANT_H_
-#define _REG_CONSTANT_H_
-
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-
-extern FPU_REG CONST_1;
-extern FPU_REG CONST_2;
-extern FPU_REG CONST_HALF;
-extern FPU_REG CONST_L2T;
-extern FPU_REG CONST_L2E;
-extern FPU_REG CONST_PI;
-extern FPU_REG CONST_PI2;
-extern FPU_REG CONST_PI4;
-extern FPU_REG CONST_LG2;
-extern FPU_REG CONST_LN2;
-extern FPU_REG CONST_Z;
-extern FPU_REG CONST_PINF;
-extern FPU_REG CONST_INF;
-extern FPU_REG CONST_MINF;
-extern FPU_REG CONST_QNaN;
-
-#endif				/* _REG_CONSTANT_H_ */
diff --git a/sys/gnu/arch/i386/fpemul/reg_div.s b/sys/gnu/arch/i386/fpemul/reg_div.s
deleted file mode 100644
index bb2729af697..00000000000
--- a/sys/gnu/arch/i386/fpemul/reg_div.s
+++ /dev/null
@@ -1,302 +0,0 @@
-	.file	"reg_div.S"
-/*	$OpenBSD: reg_div.s,v 1.5 2004/01/13 18:08:48 espie Exp $	*/
-/*
- *  reg_div.S
- *
- * Divide one FPU_REG by another and put the result in a destination FPU_REG.
- *
- * Call from C as:
- *   void reg_div(FPU_REG *a, FPU_REG *b, FPU_REG *dest,
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- * 
- *      $FreeBSD: reg_div.s,v 1.3 1994/06/10 07:44:50 rich Exp $
- *
- */
-
-#include <machine/asm.h>
-
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/fpu_asm.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-
-.text
-#ifdef __ELF__
-	.align 4
-#else
-	.align 2
-#endif
-
-.globl	_C_LABEL(reg_div)
-_C_LABEL(reg_div):
-	pushl	%ebp
-	movl	%esp,%ebp
-
-	pushl	%esi
-	pushl	%edi
-	pushl	%ebx
-
-	movl	PARAM1,%esi
-	movl	PARAM2,%ebx
-	movl	PARAM3,%edi
-
-	movb	TAG(%esi),%al
-	orb	TAG(%ebx),%al
-
-	jne	L_div_special		/* Not (both numbers TW_Valid) */
-
-#ifdef DENORM_OPERAND
-/* Check for denormals */
-	cmpl	EXP_UNDER,EXP(%esi)
-	jg	xL_arg1_not_denormal
-
-	call	_C_LABEL(denormal_operand)
-	orl	%eax,%eax
-	jnz	FPU_Arith_exit
-
-xL_arg1_not_denormal:
-	cmpl	EXP_UNDER,EXP(%ebx)
-	jg	xL_arg2_not_denormal
-
-	call	_C_LABEL(denormal_operand)
-	orl	%eax,%eax
-	jnz	FPU_Arith_exit
-
-xL_arg2_not_denormal:
-#endif /* DENORM_OPERAND */
-
-/* Both arguments are TW_Valid */
-	movb	TW_Valid,TAG(%edi)
-
-	movb	SIGN(%esi),%cl
-	cmpb	%cl,SIGN(%ebx)
-	setne	(%edi)	   /* Set the sign, requires SIGN_NEG=1, SIGN_POS=0 */
-
-	movl	EXP(%esi),%edx
-	movl	EXP(%ebx),%eax
-	subl	%eax,%edx
-	addl	EXP_BIAS,%edx
-	movl	%edx,EXP(%edi)
-
-	jmp	_C_LABEL(divide_kernel)
-
-
-/*-----------------------------------------------------------------------*/
-L_div_special:
-	cmpb	TW_NaN,TAG(%esi)	/* A NaN with anything to give NaN */
-	je	L_arg1_NaN
-
-	cmpb	TW_NaN,TAG(%ebx)	/* A NaN with anything to give NaN */
-	jne	L_no_NaN_arg
-
-/*  Operations on NaNs */
-L_arg1_NaN:
-L_arg2_NaN:
-	pushl	%edi			/* Destination */
-	pushl	%ebx
-	pushl	%esi
-	call	_C_LABEL(real_2op_NaN)
-	jmp	LDiv_exit
-
-/* Invalid operations */
-L_zero_zero:
-L_inf_inf:
-	pushl	%edi			/* Destination */
-	call	_C_LABEL(arith_invalid)		/* 0/0 or Infinity/Infinity */
-	jmp	LDiv_exit
-
-L_no_NaN_arg:
-	cmpb	TW_Infinity,TAG(%esi)
-	jne	L_arg1_not_inf
-
-	cmpb	TW_Infinity,TAG(%ebx)
-	je	L_inf_inf		/* invalid operation */
-
-	cmpb	TW_Valid,TAG(%ebx)
-	je	L_inf_valid
-
-#ifdef PARANOID
-	/* arg2 must be zero or valid */
-	cmpb	TW_Zero,TAG(%ebx)
-	ja	L_unknown_tags
-#endif /* PARANOID */
-
-	/* Note that p16-9 says that infinity/0 returns infinity */
-	jmp	L_copy_arg1		/* Answer is Inf */
-
-L_inf_valid:
-#ifdef DENORM_OPERAND
-	cmpl	EXP_UNDER,EXP(%ebx)
-	jg	L_copy_arg1		/* Answer is Inf */
-
-	call	_C_LABEL(denormal_operand)
-	orl	%eax,%eax
-	jnz	FPU_Arith_exit
-#endif /* DENORM_OPERAND */
-
-	jmp	L_copy_arg1		/* Answer is Inf */
-
-L_arg1_not_inf:
-	cmpb	TW_Zero,TAG(%ebx)	/* Priority to div-by-zero error */
-	jne	L_arg2_not_zero
-
-	cmpb	TW_Zero,TAG(%esi)
-	je	L_zero_zero		/* invalid operation */
-
-#ifdef PARANOID
-	/* arg1 must be valid */
-	cmpb	TW_Valid,TAG(%esi)
-	ja	L_unknown_tags
-#endif /* PARANOID */
-
-/* Division by zero error */
-	pushl	%edi			/* destination */
-	movb	SIGN(%esi),%al
-	xorb	SIGN(%ebx),%al
-	pushl	%eax			/* lower 8 bits have the sign */
-	call	_C_LABEL(divide_by_zero)
-	jmp	LDiv_exit
-
-L_arg2_not_zero:
-	cmpb	TW_Infinity,TAG(%ebx)
-	jne	L_arg2_not_inf
-
-#ifdef DENORM_OPERAND
-	cmpb	TW_Valid,TAG(%esi)
-	jne	L_return_zero
-
-	cmpl	EXP_UNDER,EXP(%esi)
-	jg	L_return_zero		/* Answer is zero */
-
-	call	_C_LABEL(denormal_operand)
-	orl	%eax,%eax
-	jnz	FPU_Arith_exit
-#endif /* DENORM_OPERAND */
-
-	jmp	L_return_zero		/* Answer is zero */
-
-L_arg2_not_inf:
-
-#ifdef PARANOID
-	cmpb	TW_Zero,TAG(%esi)
-	jne	L_unknown_tags
-#endif /* PARANOID */
-
-	/* arg1 is zero, arg2 is not Infinity or a NaN */
-
-#ifdef DENORM_OPERAND
-	cmpl	EXP_UNDER,EXP(%ebx)
-	jg	L_copy_arg1		/* Answer is zero */
-
-	call	_C_LABEL(denormal_operand)
-	orl	%eax,%eax
-	jnz	FPU_Arith_exit
-#endif /* DENORM_OPERAND */
-
-L_copy_arg1:
-	movb	TAG(%esi),%al
-	movb	%al,TAG(%edi)
-	movl	EXP(%esi),%eax
-	movl	%eax,EXP(%edi)
-	movl	SIGL(%esi),%eax
-	movl	%eax,SIGL(%edi)
-	movl	SIGH(%esi),%eax
-	movl	%eax,SIGH(%edi)
-
-	movb	SIGN(%esi),%cl
-	cmpb	%cl,SIGN(%ebx)
-	jne	LDiv_negative_result
-
-	movb	SIGN_POS,SIGN(%edi)
-	jmp	LDiv_exit
-
-LDiv_set_result_sign:
-	movb	SIGN(%esi),%cl
-	cmpb	%cl,SIGN(%edi)
-	jne	LDiv_negative_result
-
-	movb	SIGN_POS,SIGN(%ebx)
-	jmp	LDiv_exit
-
-LDiv_negative_result:
-	movb	SIGN_NEG,SIGN(%edi)
-
-LDiv_exit:
-	leal	-12(%ebp),%esp
-
-	popl	%ebx
-	popl	%edi
-	popl	%esi
-	leave
-	ret
-
-
-L_return_zero:
-	movb	TW_Zero,TAG(%edi)
-	jmp	LDiv_set_result_sign
-
-#ifdef PARANOID
-L_unknown_tags:
-	push	EX_INTERNAL | 0x208
-	call	EXCEPTION
-
-	/* Generate a NaN for unknown tags */
-	movl	_CONST_QNaN,%eax
-	movl	%eax,(%edi)
-	movl	_CONST_QNaN+4,%eax
-	movl	%eax,SIGL(%edi)
-	movl	_CONST_QNaN+8,%eax
-	movl	%eax,SIGH(%edi)
-	jmp	LDiv_exit
-#endif /* PARANOID */
diff --git a/sys/gnu/arch/i386/fpemul/reg_ld_str.c b/sys/gnu/arch/i386/fpemul/reg_ld_str.c
deleted file mode 100644
index 989f5feba13..00000000000
--- a/sys/gnu/arch/i386/fpemul/reg_ld_str.c
+++ /dev/null
@@ -1,1431 +0,0 @@
-/*	$OpenBSD: reg_ld_str.c,v 1.4 2003/07/30 21:30:31 jason Exp $	*/
-/*
- *  reg_ld_str.c
- *
- * All of the functions which transfer data between user memory and FPU_REGs.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: reg_ld_str.c,v 1.6 1996/06/25 20:29:26 bde Exp $
- *
- */
-
-
-/*---------------------------------------------------------------------------+
- | Note:                                                                     |
- |    The file contains code which accesses user memory.                     |
- |    Emulator static data may change when user memory is accessed, due to   |
- |    other processes using the emulator while swapping is in progress.      |
- +---------------------------------------------------------------------------*/
-#include <sys/param.h>
-#include <sys/proc.h>
-#include <sys/systm.h>
-#include <sys/user.h>
-#include <machine/cpu.h>
-#include <machine/pcb.h>
-
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/fpu_system.h>
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/reg_constant.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-#include <gnu/arch/i386/fpemul/status_w.h>
-
-
-#define EXTENDED_Emax 0x3fff	/* largest valid exponent */
-#define EXTENDED_Ebias 0x3fff
-#define EXTENDED_Emin (-0x3ffe)	/* smallest valid exponent */
-
-#define DOUBLE_Emax 1023	/* largest valid exponent */
-#define DOUBLE_Ebias 1023
-#define DOUBLE_Emin (-1022)	/* smallest valid exponent */
-
-#define SINGLE_Emax 127		/* largest valid exponent */
-#define SINGLE_Ebias 127
-#define SINGLE_Emin (-126)	/* smallest valid exponent */
-
-#define LOST_UP    (EX_Precision | SW_C1)
-#define LOST_DOWN  EX_Precision
-
-FPU_REG FPU_loaded_data;
-
-
-/* Get a long double from user memory */
-void
-reg_load_extended(void)
-{
-	long double *s = (long double *) FPU_data_address;
-	unsigned long sigl, sigh, exp;
-
-	REENTRANT_CHECK(OFF);
-	/* Use temporary variables here because FPU_loaded data is static and
-	 * hence re-entrancy problems can arise */
-	copyin((unsigned long *)s, &sigl, sizeof(unsigned long));
-	copyin(1 + (unsigned long *)s, &sigh, sizeof(unsigned long));
-	copyin(4 + (unsigned short *)s, &exp, sizeof(unsigned short));
-	REENTRANT_CHECK(ON);
-
-	FPU_loaded_data.sigl = sigl;
-	FPU_loaded_data.sigh = sigh;
-	FPU_loaded_data.exp = exp;
-
-	if (FPU_loaded_data.exp & 0x8000)
-		FPU_loaded_data.sign = SIGN_NEG;
-	else
-		FPU_loaded_data.sign = SIGN_POS;
-	if ((FPU_loaded_data.exp &= 0x7fff) == 0) {
-		if (!(FPU_loaded_data.sigl | FPU_loaded_data.sigh)) {
-			FPU_loaded_data.tag = TW_Zero;
-			return;
-		}
-		/* The number is a de-normal or pseudodenormal. */
-		/* The 80486 doesn't regard pseudodenormals as denormals here. */
-		if (!(FPU_loaded_data.sigh & 0x80000000))
-			EXCEPTION(EX_Denormal);
-		FPU_loaded_data.exp++;
-
-		/* The default behaviour will now take care of it. */
-	} else
-		if (FPU_loaded_data.exp == 0x7fff) {
-			FPU_loaded_data.exp = EXTENDED_Emax;
-			if ((FPU_loaded_data.sigh == 0x80000000)
-			    && (FPU_loaded_data.sigl == 0)) {
-				FPU_loaded_data.tag = TW_Infinity;
-				return;
-			} else
-				if (!(FPU_loaded_data.sigh & 0x80000000)) {
-					/* Unsupported NaN data type */
-					EXCEPTION(EX_Invalid);
-					FPU_loaded_data.tag = TW_NaN;
-					return;
-				}
-			FPU_loaded_data.tag = TW_NaN;
-			return;
-		}
-	FPU_loaded_data.exp = (FPU_loaded_data.exp & 0x7fff) - EXTENDED_Ebias
-	    + EXP_BIAS;
-	FPU_loaded_data.tag = TW_Valid;
-
-	if (!(sigh & 0x80000000)) {
-		/* Unsupported data type */
-		EXCEPTION(EX_Invalid);
-		normalize_nuo(&FPU_loaded_data);
-	}
-}
-
-
-/* Get a double from user memory */
-void
-reg_load_double(void)
-{
-	double *dfloat = (double *) FPU_data_address;
-	int     exp;
-	unsigned m64, l64;
-
-	REENTRANT_CHECK(OFF);
-	copyin(1 + (unsigned long *)dfloat, &m64, sizeof(unsigned));
-	copyin((unsigned long *)dfloat, &l64, sizeof(unsigned));
-	REENTRANT_CHECK(ON);
-
-	if (m64 & 0x80000000)
-		FPU_loaded_data.sign = SIGN_NEG;
-	else
-		FPU_loaded_data.sign = SIGN_POS;
-	exp = ((m64 & 0x7ff00000) >> 20) - DOUBLE_Ebias;
-	m64 &= 0xfffff;
-	if (exp > DOUBLE_Emax) {
-		/* Infinity or NaN */
-		if ((m64 == 0) && (l64 == 0)) {
-			/* +- infinity */
-			FPU_loaded_data.exp = EXTENDED_Emax;
-			FPU_loaded_data.tag = TW_Infinity;
-			return;
-		} else {
-			/* Must be a signaling or quiet NaN */
-			FPU_loaded_data.exp = EXTENDED_Emax;
-			FPU_loaded_data.tag = TW_NaN;
-			FPU_loaded_data.sigh = (m64 << 11) | 0x80000000;
-			FPU_loaded_data.sigh |= l64 >> 21;
-			FPU_loaded_data.sigl = l64 << 11;
-			return;
-		}
-	} else
-		if (exp < DOUBLE_Emin) {
-			/* Zero or de-normal */
-			if ((m64 == 0) && (l64 == 0)) {
-				/* Zero */
-				int     c = FPU_loaded_data.sign;
-				reg_move(&CONST_Z, &FPU_loaded_data);
-				FPU_loaded_data.sign = c;
-				return;
-			} else {
-				/* De-normal */
-				EXCEPTION(EX_Denormal);
-				FPU_loaded_data.exp = DOUBLE_Emin + EXP_BIAS;
-				FPU_loaded_data.tag = TW_Valid;
-				FPU_loaded_data.sigh = m64 << 11;
-				FPU_loaded_data.sigh |= l64 >> 21;
-				FPU_loaded_data.sigl = l64 << 11;
-				normalize_nuo(&FPU_loaded_data);
-				return;
-			}
-		} else {
-			FPU_loaded_data.exp = exp + EXP_BIAS;
-			FPU_loaded_data.tag = TW_Valid;
-			FPU_loaded_data.sigh = (m64 << 11) | 0x80000000;
-			FPU_loaded_data.sigh |= l64 >> 21;
-			FPU_loaded_data.sigl = l64 << 11;
-
-			return;
-		}
-}
-
-
-/* Get a float from user memory */
-void
-reg_load_single(void)
-{
-	float  *single = (float *) FPU_data_address;
-	unsigned m32;
-	int     exp;
-
-	REENTRANT_CHECK(OFF);
-	copyin((unsigned long *)single, &m32, sizeof(unsigned));
-	REENTRANT_CHECK(ON);
-
-	if (m32 & 0x80000000)
-		FPU_loaded_data.sign = SIGN_NEG;
-	else
-		FPU_loaded_data.sign = SIGN_POS;
-	if (!(m32 & 0x7fffffff)) {
-		/* Zero */
-		int     c = FPU_loaded_data.sign;
-		reg_move(&CONST_Z, &FPU_loaded_data);
-		FPU_loaded_data.sign = c;
-		return;
-	}
-	exp = ((m32 & 0x7f800000) >> 23) - SINGLE_Ebias;
-	m32 = (m32 & 0x7fffff) << 8;
-	if (exp < SINGLE_Emin) {
-		/* De-normals */
-		EXCEPTION(EX_Denormal);
-		FPU_loaded_data.exp = SINGLE_Emin + EXP_BIAS;
-		FPU_loaded_data.tag = TW_Valid;
-		FPU_loaded_data.sigh = m32;
-		FPU_loaded_data.sigl = 0;
-		normalize_nuo(&FPU_loaded_data);
-		return;
-	} else
-		if (exp > SINGLE_Emax) {
-			/* Infinity or NaN */
-			if (m32 == 0) {
-				/* +- infinity */
-				FPU_loaded_data.exp = EXTENDED_Emax;
-				FPU_loaded_data.tag = TW_Infinity;
-				return;
-			} else {
-				/* Must be a signaling or quiet NaN */
-				FPU_loaded_data.exp = EXTENDED_Emax;
-				FPU_loaded_data.tag = TW_NaN;
-				FPU_loaded_data.sigh = m32 | 0x80000000;
-				FPU_loaded_data.sigl = 0;
-				return;
-			}
-		} else {
-			FPU_loaded_data.exp = exp + EXP_BIAS;
-			FPU_loaded_data.sigh = m32 | 0x80000000;
-			FPU_loaded_data.sigl = 0;
-			FPU_loaded_data.tag = TW_Valid;
-		}
-}
-
-
-/* Get a long long from user memory */
-void
-reg_load_int64(void)
-{
-	long long *_s = (long long *) FPU_data_address;
-	int     e;
-	long long s;
-
-	REENTRANT_CHECK(OFF);
-	copyin((unsigned long *)_s, &(((unsigned long *)&s)[0]),
-	    sizeof(unsigned long));
-	copyin(1 + (unsigned long *)_s, &(((unsigned long *)&s)[1]),
-	    sizeof(unsigned long));
-	REENTRANT_CHECK(ON);
-
-	if (s == 0) {
-		reg_move(&CONST_Z, &FPU_loaded_data);
-		return;
-	}
-	if (s > 0)
-		FPU_loaded_data.sign = SIGN_POS;
-	else {
-		s = -s;
-		FPU_loaded_data.sign = SIGN_NEG;
-	}
-
-	e = EXP_BIAS + 63;
-	*((long long *) &FPU_loaded_data.sigl) = s;
-	FPU_loaded_data.exp = e;
-	FPU_loaded_data.tag = TW_Valid;
-	normalize_nuo(&FPU_loaded_data);
-}
-
-
-/* Get a long from user memory */
-void
-reg_load_int32(void)
-{
-	long    s;
-	int     e;
-
-	REENTRANT_CHECK(OFF);
-	copyin((long *)FPU_data_address, &s, sizeof(long));
-	REENTRANT_CHECK(ON);
-
-	if (s == 0) {
-		reg_move(&CONST_Z, &FPU_loaded_data);
-		return;
-	}
-	if (s > 0)
-		FPU_loaded_data.sign = SIGN_POS;
-	else {
-		s = -s;
-		FPU_loaded_data.sign = SIGN_NEG;
-	}
-
-	e = EXP_BIAS + 31;
-	FPU_loaded_data.sigh = s;
-	FPU_loaded_data.sigl = 0;
-	FPU_loaded_data.exp = e;
-	FPU_loaded_data.tag = TW_Valid;
-	normalize_nuo(&FPU_loaded_data);
-}
-
-
-/* Get a short from user memory */
-void
-reg_load_int16(void)
-{
-	short	tmp;
-	int     s, e;
-
-	REENTRANT_CHECK(OFF);
-	copyin((short *)FPU_data_address, &tmp, sizeof(short));
-	REENTRANT_CHECK(ON);
-	/* Cast as short to get the sign extended. */
-	s = (short)tmp;
-
-	if (s == 0) {
-		reg_move(&CONST_Z, &FPU_loaded_data);
-		return;
-	}
-	if (s > 0)
-		FPU_loaded_data.sign = SIGN_POS;
-	else {
-		s = -s;
-		FPU_loaded_data.sign = SIGN_NEG;
-	}
-
-	e = EXP_BIAS + 15;
-	FPU_loaded_data.sigh = s << 16;
-
-	FPU_loaded_data.sigl = 0;
-	FPU_loaded_data.exp = e;
-	FPU_loaded_data.tag = TW_Valid;
-	normalize_nuo(&FPU_loaded_data);
-}
-
-
-/* Get a packed bcd array from user memory */
-void
-reg_load_bcd(void)
-{
-	char   *s = (char *) FPU_data_address;
-	int     pos;
-	unsigned char bcd, tmp;
-	long long l = 0;
-
-	for (pos = 8; pos >= 0; pos--) {
-		l *= 10;
-		REENTRANT_CHECK(OFF);
-		copyin(s + pos, &bcd, sizeof(u_char));
-		REENTRANT_CHECK(ON);
-		l += bcd >> 4;
-		l *= 10;
-		l += bcd & 0x0f;
-	}
-
-	/* Finish all access to user memory before putting stuff into the
-	 * static FPU_loaded_data */
-	REENTRANT_CHECK(OFF);
-	copyin(s + 9, &tmp, sizeof(u_char));
-	REENTRANT_CHECK(ON);
-	FPU_loaded_data.sign = tmp & 0x80 ? SIGN_NEG : SIGN_POS;
-
-	if (l == 0) {
-		char    sign = FPU_loaded_data.sign;
-		reg_move(&CONST_Z, &FPU_loaded_data);
-		FPU_loaded_data.sign = sign;
-	} else {
-		*((long long *) &FPU_loaded_data.sigl) = l;
-		FPU_loaded_data.exp = EXP_BIAS + 63;
-		FPU_loaded_data.tag = TW_Valid;
-		normalize_nuo(&FPU_loaded_data);
-	}
-}
-/*===========================================================================*/
-
-/* Put a long double into user memory */
-int
-reg_store_extended(void)
-{
-	long double *d = (long double *) FPU_data_address;
-	long    e = FPU_st0_ptr->exp - EXP_BIAS + EXTENDED_Ebias;
-	unsigned short sign = FPU_st0_ptr->sign * 0x8000;
-	unsigned long ls, ms;
-
-
-	if (FPU_st0_tag == TW_Valid) {
-		if (e >= 0x7fff) {
-			EXCEPTION(EX_Overflow);	/* Overflow */
-			/* This is a special case: see sec 16.2.5.1 of the
-			 * 80486 book */
-			if (control_word & EX_Overflow) {
-				/* Overflow to infinity */
-				ls = 0;
-				ms = 0x80000000;
-				e = 0x7fff;
-			} else
-				return 0;
-		} else
-			if (e <= 0) {
-				if (e > -63) {
-					/* Correctly format the de-normal */
-					int     precision_loss;
-					FPU_REG tmp;
-
-					EXCEPTION(EX_Denormal);
-					reg_move(FPU_st0_ptr, &tmp);
-					tmp.exp += -EXTENDED_Emin + 63;	/* largest exp to be 62 */
-					if ((precision_loss = round_to_int(&tmp))) {
-						EXCEPTION(EX_Underflow | precision_loss);
-						/* This is a special case: see
-						 * sec 16.2.5.1 of the 80486
-						 * book */
-						if (!(control_word & EX_Underflow))
-							return 0;
-					}
-					e = 0;
-					ls = tmp.sigl;
-					ms = tmp.sigh;
-				} else {
-					/* ****** ??? This should not be
-					 * possible */
-					EXCEPTION(EX_Underflow);	/* Underflow */
-					/* This is a special case: see sec
-					 * 16.2.5.1 of the 80486 book */
-					if (control_word & EX_Underflow) {
-						/* Underflow to zero */
-						ls = 0;
-						ms = 0;
-						e = FPU_st0_ptr->sign == SIGN_POS ? 0x7fff : 0xffff;
-					} else
-						return 0;
-				}
-			} else {
-				ls = FPU_st0_ptr->sigl;
-				ms = FPU_st0_ptr->sigh;
-			}
-	} else
-		if (FPU_st0_tag == TW_Zero) {
-			ls = ms = 0;
-			e = 0;
-		} else
-			if (FPU_st0_tag == TW_Infinity) {
-				ls = 0;
-				ms = 0x80000000;
-				e = 0x7fff;
-			} else
-				if (FPU_st0_tag == TW_NaN) {
-					ls = FPU_st0_ptr->sigl;
-					ms = FPU_st0_ptr->sigh;
-					e = 0x7fff;
-				} else
-					if (FPU_st0_tag == TW_Empty) {
-						/* Empty register (stack
-						 * underflow) */
-						EXCEPTION(EX_StackUnder);
-						if (control_word & EX_Invalid) {
-							/* The masked response */
-							/* Put out the QNaN
-							 * indefinite */
-							ls = 0;
-							ms = 0xc0000000;
-							e = 0xffff;
-						} else
-							return 0;
-					} else {
-						/* We don't use TW_Denormal
-						 * yet ... perhaps never! */
-						EXCEPTION(EX_Invalid);
-						/* Store a NaN */
-						e = 0x7fff;
-						ls = 1;
-						ms = 0x80000000;
-					}
-	sign |= (unsigned short)e;
-	REENTRANT_CHECK(OFF);
-/*	    verify_area(VERIFY_WRITE, d, 10); */
-	copyout(&ls, (unsigned long *)d, sizeof(int));
-	copyout(&ms, 1 + (unsigned long *)d, sizeof(int));
-	copyout(&sign, 4 + (short *)d, sizeof(short));
-	REENTRANT_CHECK(ON);
-
-	return 1;
-
-}
-
-
-/* Put a double into user memory */
-int
-reg_store_double(void)
-{
-	double *dfloat = (double *) FPU_data_address;
-	unsigned long l[2];
-	if (FPU_st0_tag == TW_Valid) {
-		int     exp;
-		FPU_REG tmp;
-
-		reg_move(FPU_st0_ptr, &tmp);
-		exp = tmp.exp - EXP_BIAS;
-
-		if (exp < DOUBLE_Emin) {	/* It may be a denormal */
-			/* Make a de-normal */
-			int     precision_loss;
-
-			if (exp <= -EXTENDED_Ebias)
-				EXCEPTION(EX_Denormal);
-
-			tmp.exp += -DOUBLE_Emin + 52;	/* largest exp to be 51 */
-
-			if ((precision_loss = round_to_int(&tmp))) {
-#ifdef PECULIAR_486
-				/* Did it round to a non-denormal ? */
-				/* This behaviour might be regarded as
-				 * peculiar, it appears that the 80486 rounds
-				 * to the dest precision, then converts to
-				 * decide underflow. */
-				if ((tmp.sigh == 0x00100000) && (tmp.sigl == 0) &&
-				    (FPU_st0_ptr->sigl & 0x000007ff))
-					EXCEPTION(precision_loss);
-				else
-#endif				/* PECULIAR_486 */
-				{
-					EXCEPTION(EX_Underflow | precision_loss);
-					/* This is a special case: see sec
-					 * 16.2.5.1 of the 80486 book */
-					if (!(control_word & EX_Underflow))
-						return 0;
-				}
-			}
-			l[0] = tmp.sigl;
-			l[1] = tmp.sigh;
-		} else {
-			if (tmp.sigl & 0x000007ff) {
-				unsigned long increment = 0;	/* avoid gcc warnings */
-
-				switch (control_word & CW_RC) {
-				case RC_RND:
-					/* Rounding can get a little messy.. */
-					increment = ((tmp.sigl & 0x7ff) > 0x400) |	/* nearest */
-					    ((tmp.sigl & 0xc00) == 0xc00);	/* odd -> even */
-					break;
-				case RC_DOWN:	/* towards -infinity */
-					increment = (tmp.sign == SIGN_POS) ? 0 : tmp.sigl & 0x7ff;
-					break;
-				case RC_UP:	/* towards +infinity */
-					increment = (tmp.sign == SIGN_POS) ? tmp.sigl & 0x7ff : 0;
-					break;
-				case RC_CHOP:
-					increment = 0;
-					break;
-				}
-
-				/* Truncate the mantissa */
-				tmp.sigl &= 0xfffff800;
-
-				if (increment) {
-					set_precision_flag_up();
-
-					if (tmp.sigl >= 0xfffff800) {
-						/* the sigl part overflows */
-						if (tmp.sigh == 0xffffffff) {
-							/* The sigh part
-							 * overflows */
-							tmp.sigh = 0x80000000;
-							exp++;
-							if (exp >= EXP_OVER)
-								goto overflow;
-						} else {
-							tmp.sigh++;
-						}
-						tmp.sigl = 0x00000000;
-					} else {
-						/* We only need to increment
-						 * sigl */
-						tmp.sigl += 0x00000800;
-					}
-				} else
-					set_precision_flag_down();
-			}
-			l[0] = (tmp.sigl >> 11) | (tmp.sigh << 21);
-			l[1] = ((tmp.sigh >> 11) & 0xfffff);
-
-			if (exp > DOUBLE_Emax) {
-		overflow:
-				EXCEPTION(EX_Overflow);
-				/* This is a special case: see sec 16.2.5.1 of
-				 * the 80486 book */
-				if (control_word & EX_Overflow) {
-					/* Overflow to infinity */
-					l[0] = 0x00000000;	/* Set to */
-					l[1] = 0x7ff00000;	/* + INF */
-				} else
-					return 0;
-			} else {
-				/* Add the exponent */
-				l[1] |= (((exp + DOUBLE_Ebias) & 0x7ff) << 20);
-			}
-		}
-	} else
-		if (FPU_st0_tag == TW_Zero) {
-			/* Number is zero */
-			l[0] = 0;
-			l[1] = 0;
-		} else
-			if (FPU_st0_tag == TW_Infinity) {
-				l[0] = 0;
-				l[1] = 0x7ff00000;
-			} else {
-				long tmpl;
-
-				if (FPU_st0_tag == TW_NaN) {
-					/* See if we can get a valid NaN from
-					 * the FPU_REG */
-					l[0] = (FPU_st0_ptr->sigl >> 11) | (FPU_st0_ptr->sigh << 21);
-					l[1] = ((FPU_st0_ptr->sigh >> 11) & 0xfffff);
-					if (!(l[0] | l[1])) {
-						/* This case does not seem to
-						 * be handled by the 80486
-						 * specs */
-						EXCEPTION(EX_Invalid);
-						/* Make the quiet NaN "real
-						 * indefinite" */
-						goto put_indefinite;
-					}
-					l[1] |= 0x7ff00000;
-				} else
-					if (FPU_st0_tag == TW_Empty) {
-						/* Empty register (stack
-						 * underflow) */
-						EXCEPTION(EX_StackUnder);
-						if (control_word & EX_Invalid) {
-							/* The masked response */
-							/* Put out the QNaN
-							 * indefinite */
-					put_indefinite:
-
-							REENTRANT_CHECK(OFF);
-							/* verify_area(VERIFY_W
-							 * RITE, (void *)
-							 * dfloat, 8); */
-							tmpl = 0;
-							copyout(&tmpl, dfloat, sizeof(long));
-							tmpl = 0xfff80000;
-							copyout(&tmpl, 1 + (long *)dfloat, sizeof(long));
-							REENTRANT_CHECK(ON);
-							return 1;
-						} else
-							return 0;
-					}
-#if 0				/* TW_Denormal is not used yet, and probably
-				 * won't be */
-					else
-						if (FPU_st0_tag == TW_Denormal) {
-							/* Extended real ->
-							 * double real will
-							 * always underflow */
-							l[0] = l[1] = 0;
-							EXCEPTION(EX_Underflow);
-						}
-#endif
-			}
-	if (FPU_st0_ptr->sign)
-		l[1] |= 0x80000000;
-
-	REENTRANT_CHECK(OFF);
-/*	    verify_area(VERIFY_WRITE, (void *) dfloat, 8);*/
-	copyout(&l[0], (u_long *)dfloat, sizeof(int));
-	copyout(&l[1], (u_long *)dfloat + 1, sizeof(int));
-	REENTRANT_CHECK(ON);
-
-	return 1;
-}
-
-
-/* Put a float into user memory */
-int
-reg_store_single(void)
-{
-	float  *single = (float *) FPU_data_address;
-	long    templ = 0;
-
-	if (FPU_st0_tag == TW_Valid) {
-		int     exp;
-		FPU_REG tmp;
-
-		reg_move(FPU_st0_ptr, &tmp);
-		exp = tmp.exp - EXP_BIAS;
-
-		if (exp < SINGLE_Emin) {
-			/* Make a de-normal */
-			int     precision_loss;
-
-			if (exp <= -EXTENDED_Ebias)
-				EXCEPTION(EX_Denormal);
-
-			tmp.exp += -SINGLE_Emin + 23;	/* largest exp to be 22 */
-
-			if ((precision_loss = round_to_int(&tmp))) {
-#ifdef PECULIAR_486
-				/* Did it round to a non-denormal ? */
-				/* This behaviour might be regarded as
-				 * peculiar, it appears that the 80486 rounds
-				 * to the dest precision, then converts to
-				 * decide underflow. */
-				if ((tmp.sigl == 0x00800000) &&
-				    ((FPU_st0_ptr->sigh & 0x000000ff) || FPU_st0_ptr->sigl))
-					EXCEPTION(precision_loss);
-				else
-#endif				/* PECULIAR_486 */
-				{
-					EXCEPTION(EX_Underflow | precision_loss);
-					/* This is a special case: see sec
-					 * 16.2.5.1 of the 80486 book */
-					if (!(control_word & EX_Underflow))
-						return 0;
-				}
-			}
-			templ = tmp.sigl;
-		} else {
-			if (tmp.sigl | (tmp.sigh & 0x000000ff)) {
-				unsigned long increment = 0;	/* avoid gcc warnings */
-				unsigned long sigh = tmp.sigh;
-				unsigned long sigl = tmp.sigl;
-
-				switch (control_word & CW_RC) {
-				case RC_RND:
-					increment = ((sigh & 0xff) > 0x80)	/* more than half */
-					    ||(((sigh & 0xff) == 0x80) && sigl)	/* more than half */
-					    ||((sigh & 0x180) == 0x180);	/* round to even */
-					break;
-				case RC_DOWN:	/* towards -infinity */
-					increment = (tmp.sign == SIGN_POS)
-					    ? 0 : (sigl | (sigh & 0xff));
-					break;
-				case RC_UP:	/* towards +infinity */
-					increment = (tmp.sign == SIGN_POS)
-					    ? (sigl | (sigh & 0xff)) : 0;
-					break;
-				case RC_CHOP:
-					increment = 0;
-					break;
-				}
-
-				/* Truncate part of the mantissa */
-				tmp.sigl = 0;
-
-				if (increment) {
-					set_precision_flag_up();
-
-					if (sigh >= 0xffffff00) {
-						/* The sigh part overflows */
-						tmp.sigh = 0x80000000;
-						exp++;
-						if (exp >= EXP_OVER)
-							goto overflow;
-					} else {
-						tmp.sigh &= 0xffffff00;
-						tmp.sigh += 0x100;
-					}
-				} else {
-					set_precision_flag_down();
-					tmp.sigh &= 0xffffff00;	/* Finish the truncation */
-				}
-			}
-			templ = (tmp.sigh >> 8) & 0x007fffff;
-
-			if (exp > SINGLE_Emax) {
-		overflow:
-				EXCEPTION(EX_Overflow);
-				/* This is a special case: see sec 16.2.5.1 of
-				 * the 80486 book */
-				if (control_word & EX_Overflow) {
-					/* Overflow to infinity */
-					templ = 0x7f800000;
-				} else
-					return 0;
-			} else
-				templ |= ((exp + SINGLE_Ebias) & 0xff) << 23;
-		}
-	} else
-		if (FPU_st0_tag == TW_Zero) {
-			templ = 0;
-		} else
-			if (FPU_st0_tag == TW_Infinity) {
-				templ = 0x7f800000;
-			} else
-				if (FPU_st0_tag == TW_NaN) {
-					/* See if we can get a valid NaN from
-					 * the FPU_REG */
-					templ = FPU_st0_ptr->sigh >> 8;
-					if (!(templ & 0x3fffff)) {
-						/* This case does not seem to
-						 * be handled by the 80486
-						 * specs */
-						EXCEPTION(EX_Invalid);
-						/* Make the quiet NaN "real
-						 * indefinite" */
-						goto put_indefinite;
-					}
-					templ |= 0x7f800000;
-				} else
-					if (FPU_st0_tag == TW_Empty) {
-						/* Empty register (stack
-						 * underflow) */
-						EXCEPTION(EX_StackUnder);
-						if (control_word & EX_Invalid) {
-							/* The masked response */
-							/* Put out the QNaN
-							 * indefinite */
-					put_indefinite:
-							REENTRANT_CHECK(OFF);
-/*							    verify_area(VERIFY_WRITE, (void *) single, 4); */
-							templ = 0xffc00000;
-							copyout(&templ, single, sizeof(long));
-							REENTRANT_CHECK(ON);
-							return 1;
-						} else
-							return 0;
-					}
-#if 0				/* TW_Denormal is not used yet, and probably
-				 * won't be */
-					else
-						if (FPU_st0_tag == TW_Denormal) {
-							/* Extended real ->
-							 * real will always
-							 * underflow */
-							templ = 0;
-							EXCEPTION(EX_Underflow);
-						}
-#endif
-#ifdef PARANOID
-						else {
-							EXCEPTION(EX_INTERNAL | 0x106);
-							return 0;
-						}
-#endif
-	if (FPU_st0_ptr->sign)
-		templ |= 0x80000000;
-
-	REENTRANT_CHECK(OFF);
-/*	    verify_area(VERIFY_WRITE, (void *) single, 4); */
-	copyout(&templ, (unsigned long *)single, sizeof(int));
-	REENTRANT_CHECK(ON);
-
-	return 1;
-}
-
-
-/* Put a long long into user memory */
-int
-reg_store_int64(void)
-{
-	long long *d = (long long *) FPU_data_address;
-	FPU_REG t;
-	long long tll;
-
-	if (FPU_st0_tag == TW_Empty) {
-		/* Empty register (stack underflow) */
-		EXCEPTION(EX_StackUnder);
-		if (control_word & EX_Invalid) {
-			/* The masked response */
-			/* Put out the QNaN indefinite */
-			goto put_indefinite;
-		} else
-			return 0;
-	}
-	reg_move(FPU_st0_ptr, &t);
-	round_to_int(&t);
-	((long *) &tll)[0] = t.sigl;
-	((long *) &tll)[1] = t.sigh;
-	if ((t.sigh & 0x80000000) &&
-	    !((t.sigh == 0x80000000) && (t.sigl == 0) && (t.sign == SIGN_NEG))) {
-		EXCEPTION(EX_Invalid);
-		/* This is a special case: see sec 16.2.5.1 of the 80486 book */
-		if (control_word & EX_Invalid) {
-			/* Produce "indefinite" */
-	put_indefinite:
-			((long *) &tll)[1] = 0x80000000;
-			((long *) &tll)[0] = 0;
-		} else
-			return 0;
-	} else
-		if (t.sign)
-			tll = -tll;
-
-	REENTRANT_CHECK(OFF);
-/*	    verify_area(VERIFY_WRITE, (void *) d, 8); */
-	copyout(&tll, d, sizeof(long));
-	copyout(1 + (long *)&tll, 1 + (long *)d, sizeof(long));
-	REENTRANT_CHECK(ON);
-
-	return 1;
-}
-
-
-/* Put a long into user memory */
-int
-reg_store_int32(void)
-{
-	long   *d = (long *) FPU_data_address;
-	FPU_REG t;
-
-	if (FPU_st0_tag == TW_Empty) {
-		/* Empty register (stack underflow) */
-		EXCEPTION(EX_StackUnder);
-		if (control_word & EX_Invalid) {
-			long tmpl;
-
-			/* The masked response */
-			/* Put out the QNaN indefinite */
-			REENTRANT_CHECK(OFF);
-/*			    verify_area(VERIFY_WRITE, d, 4);*/
-			tmpl = 0x80000000;
-			copyout(&tmpl, d, sizeof(long));
-			REENTRANT_CHECK(ON);
-			return 1;
-		} else
-			return 0;
-	}
-	reg_move(FPU_st0_ptr, &t);
-	round_to_int(&t);
-	if (t.sigh ||
-	    ((t.sigl & 0x80000000) &&
-		!((t.sigl == 0x80000000) && (t.sign == SIGN_NEG)))) {
-		EXCEPTION(EX_Invalid);
-		/* This is a special case: see sec 16.2.5.1 of the 80486 book */
-		if (control_word & EX_Invalid) {
-			/* Produce "indefinite" */
-			t.sigl = 0x80000000;
-		} else
-			return 0;
-	} else
-		if (t.sign)
-			t.sigl = -(long) t.sigl;
-
-	REENTRANT_CHECK(OFF);
-/*	    verify_area(VERIFY_WRITE, d, 4); */
-	copyout(&t.sigl, d, sizeof(long));
-	REENTRANT_CHECK(ON);
-
-	return 1;
-}
-
-
-/* Put a short into user memory */
-int
-reg_store_int16(void)
-{
-	short  *d = (short *) FPU_data_address;
-	FPU_REG t;
-	short   ts;	/* XXX bug! incorrectly used -- miod */
-	int16_t tmp;
-
-	if (FPU_st0_tag == TW_Empty) {
-		/* Empty register (stack underflow) */
-		EXCEPTION(EX_StackUnder);
-		if (control_word & EX_Invalid) {
-			/* The masked response */
-			/* Put out the QNaN indefinite */
-			REENTRANT_CHECK(OFF);
-/*			    verify_area(VERIFY_WRITE, d, 2);*/
-			tmp = 0x8000;
-			copyout(&tmp, d, sizeof(int16_t));
-			REENTRANT_CHECK(ON);
-			return 1;
-		} else
-			return 0;
-	}
-	reg_move(FPU_st0_ptr, &t);
-	round_to_int(&t);
-	if (t.sigh ||
-	    ((t.sigl & 0xffff8000) &&
-		!((t.sigl == 0x8000) && (t.sign == SIGN_NEG)))) {
-		EXCEPTION(EX_Invalid);
-		/* This is a special case: see sec 16.2.5.1 of the 80486 book */
-		if (control_word & EX_Invalid) {
-			/* Produce "indefinite" */
-			ts = 0x8000;
-		} else
-			return 0;
-	} else
-		if (t.sign)
-			t.sigl = -t.sigl;
-
-	REENTRANT_CHECK(OFF);
-/*	    verify_area(VERIFY_WRITE, d, 2); */
-	copyout(&t.sigl, d, sizeof(int16_t));
-	REENTRANT_CHECK(ON);
-
-	return 1;
-}
-
-
-/* Put a packed bcd array into user memory */
-int
-reg_store_bcd(void)
-{
-	char   *d = (char *) FPU_data_address;
-	FPU_REG t;
-	long long ll;
-	unsigned char b;
-	int     i;
-	unsigned char sign = (FPU_st0_ptr->sign == SIGN_NEG) ? 0x80 : 0;
-
-	if (FPU_st0_tag == TW_Empty) {
-		/* Empty register (stack underflow) */
-		EXCEPTION(EX_StackUnder);
-		if (control_word & EX_Invalid) {
-			/* The masked response */
-			/* Put out the QNaN indefinite */
-			goto put_indefinite;
-		} else
-			return 0;
-	}
-	reg_move(FPU_st0_ptr, &t);
-	round_to_int(&t);
-	ll = *(long long *) (&t.sigl);
-
-	/* Check for overflow, by comparing with 999999999999999999 decimal. */
-	if ((t.sigh > 0x0de0b6b3) ||
-	    ((t.sigh == 0x0de0b6b3) && (t.sigl > 0xa763ffff))) {
-		EXCEPTION(EX_Invalid);
-		/* This is a special case: see sec 16.2.5.1 of the 80486 book */
-		if (control_word & EX_Invalid) {
-	put_indefinite:
-			/* Produce "indefinite" */
-			b = 0xff;
-			REENTRANT_CHECK(OFF);
-/*			    verify_area(VERIFY_WRITE, d, 10);*/
-			copyout(&b, (unsigned char *)d + 7, sizeof(char));
-			copyout(&b, (unsigned char *)d + 8, sizeof(char));
-			copyout(&b, (unsigned char *)d + 9, sizeof(char));
-			REENTRANT_CHECK(ON);
-			return 1;
-		} else
-			return 0;
-	}
-/*	verify_area(VERIFY_WRITE, d, 10);*/
-	for (i = 0; i < 9; i++) {
-		b = div_small(&ll, 10);
-		b |= (div_small(&ll, 10)) << 4;
-		REENTRANT_CHECK(OFF);
-		copyout(&b, (unsigned char *)d + i, sizeof(char));
-		REENTRANT_CHECK(ON);
-	}
-	REENTRANT_CHECK(OFF);
-	copyout(&sign, (unsigned char *)d + 9, sizeof(char));
-	REENTRANT_CHECK(ON);
-
-	return 1;
-}
-/*===========================================================================*/
-
-/* r gets mangled such that sig is int, sign:
-   it is NOT normalized */
-/* The return value (in eax) is zero if the result is exact,
-   if bits are changed due to rounding, truncation, etc, then
-   a non-zero value is returned */
-/* Overflow is signalled by a non-zero return value (in eax).
-   In the case of overflow, the returned significand always has the
-   the largest possible value */
-/* The value returned in eax is never actually needed :-) */
-int
-round_to_int(FPU_REG * r)
-{
-	char    very_big;
-	unsigned eax;
-
-	if (r->tag == TW_Zero) {
-		/* Make sure that zero is returned */
-		*(long long *) &r->sigl = 0;
-		return 0;	/* o.k. */
-	}
-	if (r->exp > EXP_BIAS + 63) {
-		r->sigl = r->sigh = ~0;	/* The largest representable number */
-		return 1;	/* overflow */
-	}
-	eax = shrxs(&r->sigl, EXP_BIAS + 63 - r->exp);
-	very_big = !(~(r->sigh) | ~(r->sigl));	/* test for 0xfff...fff */
-#define	half_or_more	(eax & 0x80000000)
-#define	frac_part	(eax)
-#define more_than_half  ((eax & 0x80000001) == 0x80000001)
-	switch (control_word & CW_RC) {
-	case RC_RND:
-		if (more_than_half	/* nearest */
-		    || (half_or_more && (r->sigl & 1))) {	/* odd -> even */
-			if (very_big)
-				return 1;	/* overflow */
-			(*(long long *) (&r->sigl))++;
-			return LOST_UP;
-		}
-		break;
-	case RC_DOWN:
-		if (frac_part && r->sign) {
-			if (very_big)
-				return 1;	/* overflow */
-			(*(long long *) (&r->sigl))++;
-			return LOST_UP;
-		}
-		break;
-	case RC_UP:
-		if (frac_part && !r->sign) {
-			if (very_big)
-				return 1;	/* overflow */
-			(*(long long *) (&r->sigl))++;
-			return LOST_UP;
-		}
-		break;
-	case RC_CHOP:
-		break;
-	}
-
-	return eax ? LOST_DOWN : 0;
-
-}
-/*===========================================================================*/
-
-char   *
-fldenv(void)
-{
-	char   *s = (char *) FPU_data_address;
-	unsigned short tag_word = 0;
-	unsigned char tag;
-	int     i;
-
-	REENTRANT_CHECK(OFF);
-	copyin((unsigned short *)s, &control_word, sizeof(unsigned short));
-	copyin((unsigned short *)(s + 4), &status_word, sizeof(unsigned short));
-	copyin((unsigned short *)(s + 8), &tag_word, sizeof(unsigned short));
-	copyin((unsigned long *)(s + 0x0c), &ip_offset, sizeof(unsigned long));
-	copyin((unsigned long *)(s + 0x10), &cs_selector,
-	    sizeof(unsigned long));
-	copyin((unsigned long *)(s + 0x14), &data_operand_offset,
-	    sizeof(unsigned long));
-	copyin((unsigned long *)(s + 0x18), &operand_selector,
-	    sizeof(unsigned long));
-	REENTRANT_CHECK(ON);
-
-	top = (status_word >> SW_Top_Shift) & 7;
-
-	for (i = 0; i < 8; i++) {
-		tag = tag_word & 3;
-		tag_word >>= 2;
-
-		switch (tag) {
-		case 0:
-			regs[i].tag = TW_Valid;
-			break;
-		case 1:
-			regs[i].tag = TW_Zero;
-			break;
-		case 2:
-			regs[i].tag = TW_NaN;
-			break;
-		case 3:
-			regs[i].tag = TW_Empty;
-			break;
-		}
-	}
-
-	FPU_data_address = (void *) data_operand_offset;	/* We want no net effect */
-	FPU_entry_eip = ip_offset;	/* We want no net effect */
-
-	return s + 0x1c;
-}
-
-
-void
-frstor(void)
-{
-	int     i, stnr;
-	unsigned char tag;
-	unsigned short saved_status, saved_control;
-	char   *s = (char *) fldenv();
-
-	saved_status = status_word;
-	saved_control = control_word;
-	control_word = 0x037f;	/* Mask all interrupts while we load. */
-	for (i = 0; i < 8; i++) {
-		/* load each register */
-		FPU_data_address = (void *) (s + i * 10);
-		reg_load_extended();
-		stnr = (i + top) & 7;
-		tag = regs[stnr].tag;	/* derived from the loaded tag word */
-		reg_move(&FPU_loaded_data, &regs[stnr]);
-		if (tag == TW_NaN) {
-			/* The current data is a special, i.e. NaN,
-			 * unsupported, infinity, or denormal */
-			unsigned char t = regs[stnr].tag;	/* derived from the new
-								 * data */
-			if ( /* (t == TW_Valid) || *** */ (t == TW_Zero))
-				regs[stnr].tag = TW_NaN;
-		} else
-			regs[stnr].tag = tag;
-	}
-	control_word = saved_control;
-	status_word = saved_status;
-
-	FPU_data_address = (void *) data_operand_offset;	/* We want no net effect */
-}
-
-
-unsigned short
-tag_word(void)
-{
-	unsigned short word = 0;
-	unsigned char tag;
-	int     i;
-
-	for (i = 7; i >= 0; i--) {
-		switch (tag = regs[i].tag) {
-#if 0				/* TW_Denormal is not used yet, and probably
-				 * won't be */
-		case TW_Denormal:
-#endif
-		case TW_Valid:
-			if (regs[i].exp <= (EXP_BIAS - EXTENDED_Ebias))
-				tag = 2;
-			break;
-		case TW_Infinity:
-		case TW_NaN:
-			tag = 2;
-			break;
-		case TW_Empty:
-			tag = 3;
-			break;
-			/* TW_Valid and TW_Zero already have the correct value */
-		}
-		word <<= 2;
-		word |= tag;
-	}
-	return word;
-}
-
-
-char   *
-fstenv(void)
-{
-	char   *d = (char *) FPU_data_address;
-	int16_t tmp;
-
-/*	verify_area(VERIFY_WRITE, d, 28);*/
-
-#if 0				/****/
-	*(unsigned short *) &cs_selector = fpu_cs;
-	*(unsigned short *) &operand_selector = fpu_os;
-#endif				/****/
-
-	REENTRANT_CHECK(OFF);
-	copyout(&control_word, d, sizeof(int16_t));
-	tmp = (status_word & ~SW_Top) | ((top & 7) << SW_Top_Shift);
-	copyout(&tmp, d + 4, sizeof(int16_t));
-	tmp = tag_word();
-	copyout(&tmp, d + 8, sizeof(int16_t));
-	copyout(&ip_offset, d + 0x0c, sizeof(int32_t));
-	copyout(&cs_selector, d + 0x10, sizeof(int32_t));
-	copyout(&data_operand_offset, d + 0x14, sizeof(int32_t));
-	copyout(&operand_selector, d + 0x18, sizeof(int32_t));
-	REENTRANT_CHECK(ON);
-
-	return d + 0x1c;
-}
-
-
-void
-fsave(void)
-{
-	char   *d;
-	FPU_REG tmp, *rp;
-	int     i;
-	short   e;
-	int32_t	tmpl;
-
-	d = fstenv();
-/*	verify_area(VERIFY_WRITE, d, 80);*/
-	for (i = 0; i < 8; i++) {
-		/* Store each register in the order: st(0), st(1), ... */
-		rp = &regs[(top + i) & 7];
-
-		e = rp->exp - EXP_BIAS + EXTENDED_Ebias;
-
-		if (rp->tag == TW_Valid) {
-			if (e >= 0x7fff) {
-				/* Overflow to infinity */
-				tmpl = 0;
-				REENTRANT_CHECK(OFF);
-				copyout(&tmpl, d + i * 10, sizeof(int32_t));
-				copyout(&tmpl, d + i * 10 + 4, sizeof(int32_t));
-				REENTRANT_CHECK(ON);
-				e = 0x7fff;
-			} else
-				if (e <= 0) {
-					if (e > -63) {
-						/* Make a de-normal */
-						reg_move(rp, &tmp);
-						tmp.exp += -EXTENDED_Emin + 63;	/* largest exp to be 62 */
-						round_to_int(&tmp);
-						REENTRANT_CHECK(OFF);
-						copyout(&tmp.sigl,
-						    d + i * 10,
-						    sizeof(int32_t));
-						copyout(&tmp.sigh,
-						    d + i * 10 + 4,
-						    sizeof(int32_t));
-						REENTRANT_CHECK(ON);
-					} else {
-						/* Underflow to zero */
-						tmpl = 0;
-						REENTRANT_CHECK(OFF);
-						copyout(&tmpl, d + i * 10,
-						    sizeof(int32_t));
-						copyout(&tmpl, d + i * 10 + 4,
-						    sizeof(int32_t));
-						REENTRANT_CHECK(ON);
-					}
-					e = 0;
-				} else {
-					REENTRANT_CHECK(OFF);
-					copyout(&rp->sigl, d + i * 10,
-					    sizeof(int32_t));
-					copyout(&rp->sigh, d + i * 10 + 4,
-					    sizeof(int32_t));
-					REENTRANT_CHECK(ON);
-				}
-		} else
-			if (rp->tag == TW_Zero) {
-				tmpl = 0;
-				REENTRANT_CHECK(OFF);
-				copyout(&tmpl, d + i * 10, sizeof(int32_t));
-				copyout(&tmpl, d + i * 10 + 4, sizeof(int32_t));
-				REENTRANT_CHECK(ON);
-				e = 0;
-			} else
-				if (rp->tag == TW_Infinity) {
-					REENTRANT_CHECK(OFF);
-					tmpl = 0;
-					copyout(&tmpl, d + i * 10,
-					   sizeof(int32_t));
-					tmpl = 0x80000000;
-					copyout(&tmpl, d + i * 10 + 4,
-					    sizeof(int32_t));
-					REENTRANT_CHECK(ON);
-					e = 0x7fff;
-				} else
-					if (rp->tag == TW_NaN) {
-						REENTRANT_CHECK(OFF);
-						copyout(&rp->sigl,
-						    d + i * 10,
-						    sizeof(int32_t));
-						copyout(&rp->sigh,
-						    d + i * 10 + 4,
-						    sizeof(int32_t));
-						REENTRANT_CHECK(ON);
-						e = 0x7fff;
-					} else
-						if (rp->tag == TW_Empty) {
-							/* just copy the reg */
-							REENTRANT_CHECK(OFF);
-							copyout(&rp->sigl,
-							    d + i * 10,
-							    sizeof(int32_t));
-							copyout(&rp->sigh,
-							    d + i * 10 + 4,
-							    sizeof(int32_t));
-							REENTRANT_CHECK(ON);
-						}
-		e |= rp->sign == SIGN_POS ? 0 : 0x8000;
-		REENTRANT_CHECK(OFF);
-		copyout(&e, d + i * 10 + 8, sizeof(int16_t));
-		REENTRANT_CHECK(ON);
-	}
-
-	finit();
-
-}
-/*===========================================================================*/
diff --git a/sys/gnu/arch/i386/fpemul/reg_mul.c b/sys/gnu/arch/i386/fpemul/reg_mul.c
deleted file mode 100644
index 07187c93cff..00000000000
--- a/sys/gnu/arch/i386/fpemul/reg_mul.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/*	$OpenBSD: reg_mul.c,v 1.1 1996/08/27 10:33:00 downsj Exp $	*/
-/*
- *  reg_mul.c
- *
- * Multiply one FPU_REG by another, put the result in a destination FPU_REG.
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: reg_mul.c,v 1.3 1994/06/10 07:44:53 rich Exp $
- *
- */
-
-/*---------------------------------------------------------------------------+
- | The destination may be any FPU_REG, including one of the source FPU_REGs. |
- +---------------------------------------------------------------------------*/
-
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/reg_constant.h>
-#include <gnu/arch/i386/fpemul/fpu_emu.h>
-#include <gnu/arch/i386/fpemul/fpu_system.h>
-
-
-/* This routine must be called with non-empty source registers */
-void
-reg_mul(FPU_REG * a, FPU_REG * b, FPU_REG * dest, unsigned int control_w)
-{
-	char    sign = (a->sign ^ b->sign);
-
-	if (!(a->tag | b->tag)) {
-		/* This should be the most common case */
-		reg_u_mul(a, b, dest, control_w);
-		dest->sign = sign;
-		return;
-	} else
-		if ((a->tag <= TW_Zero) && (b->tag <= TW_Zero)) {
-#ifdef DENORM_OPERAND
-			if (((b->tag == TW_Valid) && (b->exp <= EXP_UNDER)) ||
-			    ((a->tag == TW_Valid) && (a->exp <= EXP_UNDER))) {
-				if (denormal_operand())
-					return;
-			}
-#endif				/* DENORM_OPERAND */
-			/* Must have either both arguments == zero, or one
-			 * valid and the other zero. The result is therefore
-			 * zero. */
-			reg_move(&CONST_Z, dest);
-#ifdef PECULIAR_486
-			/* The 80486 book says that the answer is +0, but a
-			 * real 80486 appears to behave this way... */
-			dest->sign = sign;
-#endif				/* PECULIAR_486 */
-			return;
-		}
-#if 0				/* TW_Denormal is not used yet... perhaps
-				 * never will be. */
-		else
-			if ((a->tag <= TW_Denormal) && (b->tag <= TW_Denormal)) {
-				/* One or both arguments are de-normalized */
-				/* Internal de-normalized numbers are not
-				 * supported yet */
-				EXCEPTION(EX_INTERNAL | 0x105);
-				reg_move(&CONST_Z, dest);
-			}
-#endif
-			else {
-				/* Must have infinities, NaNs, etc */
-				if ((a->tag == TW_NaN) || (b->tag == TW_NaN)) {
-					real_2op_NaN(a, b, dest);
-					return;
-				} else
-					if (a->tag == TW_Infinity) {
-						if (b->tag == TW_Zero) {
-							arith_invalid(dest);
-							return;
-						}
-						/* Zero*Infinity is invalid */
-						else {
-#ifdef DENORM_OPERAND
-							if ((b->tag == TW_Valid) && (b->exp <= EXP_UNDER) &&
-							    denormal_operand())
-								return;
-#endif				/* DENORM_OPERAND */
-							reg_move(a, dest);
-							dest->sign = sign;
-						}
-						return;
-					} else
-						if (b->tag == TW_Infinity) {
-							if (a->tag == TW_Zero) {
-								arith_invalid(dest);
-								return;
-							}
-							/* Zero*Infinity is
-							 * invalid */
-							else {
-#ifdef DENORM_OPERAND
-								if ((a->tag == TW_Valid) && (a->exp <= EXP_UNDER) &&
-								    denormal_operand())
-									return;
-#endif				/* DENORM_OPERAND */
-								reg_move(b, dest);
-								dest->sign = sign;
-							}
-							return;
-						}
-#ifdef PARANOID
-						else {
-							EXCEPTION(EX_INTERNAL | 0x102);
-						}
-#endif				/* PARANOID */
-			}
-}
diff --git a/sys/gnu/arch/i386/fpemul/reg_norm.s b/sys/gnu/arch/i386/fpemul/reg_norm.s
deleted file mode 100644
index 0fddcac8b16..00000000000
--- a/sys/gnu/arch/i386/fpemul/reg_norm.s
+++ /dev/null
@@ -1,190 +0,0 @@
-/*	$OpenBSD: reg_norm.s,v 1.2 2002/10/12 07:12:59 pvalchev Exp $	*/
-/*
- *  reg_norm.s
- *
- * Normalize the value in a FPU_REG.
- *
- * Call from C as:
- *   void normalize(FPU_REG *n)
- *
- *   void normalize_nuo(FPU_REG *n)
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: reg_norm.s,v 1.3 1994/06/10 07:44:54 rich Exp $
- *
- */
-
-
-#include <machine/asm.h>
-
-#include <gnu/arch/i386/fpemul/fpu_asm.h>
-
-
-.text
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-.globl _C_LABEL(normalize)
-_C_LABEL(normalize):
-	pushl	%ebp
-	movl	%esp,%ebp
-	pushl	%ebx
-
-	movl	PARAM1,%ebx
-
-	movl	SIGH(%ebx),%edx
-	movl	SIGL(%ebx),%eax
-
-	orl	%edx,%edx	/* ms bits */
-	js	L_done		/* Already normalized */
-	jnz	L_shift_1	/* Shift left 1 - 31 bits */
-
-	orl	%eax,%eax
-	jz	L_zero		/* The contents are zero */
-
-/* L_shift_32: */
-	movl	%eax,%edx
-	xorl	%eax,%eax
-	subl	$32,EXP(%ebx)	/* This can cause an underflow */
-
-/* We need to shift left by 1 - 31 bits */
-L_shift_1:
-	bsrl	%edx,%ecx	/* get the required shift in %ecx */
-	subl	$31,%ecx
-	negl	%ecx
-	shld	%cl,%eax,%edx
-	shl	%cl,%eax
-	subl	%ecx,EXP(%ebx)	/* This can cause an underflow */
-
-	movl	%edx,SIGH(%ebx)
-	movl	%eax,SIGL(%ebx)
-
-L_done:
-	cmpl	EXP_OVER,EXP(%ebx)
-	jge	L_overflow
-
-	cmpl	EXP_UNDER,EXP(%ebx)
-	jle	L_underflow
-
-L_exit:
-	popl	%ebx
-	leave
-	ret
-
-
-L_zero:
-	movl	EXP_UNDER,EXP(%ebx)
-	movb	TW_Zero,TAG(%ebx)
-	jmp	L_exit
-
-L_underflow:
-	push	%ebx
-	call	_C_LABEL(arith_underflow)
-	pop	%ebx
-	jmp	L_exit
-
-L_overflow:
-	push	%ebx
-	call	_C_LABEL(arith_overflow)
-	pop	%ebx
-	jmp	L_exit
-
-
-
-/* Normalise without reporting underflow or overflow */
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-.globl _C_LABEL(normalize_nuo)
-_C_LABEL(normalize_nuo):
-	pushl	%ebp
-	movl	%esp,%ebp
-	pushl	%ebx
-
-	movl	PARAM1,%ebx
-
-	movl	SIGH(%ebx),%edx
-	movl	SIGL(%ebx),%eax
-
-	orl	%edx,%edx	/* ms bits */
-	js	L_exit		/* Already normalized */
-	jnz	L_nuo_shift_1	/* Shift left 1 - 31 bits */
-
-	orl	%eax,%eax
-	jz	L_zero		/* The contents are zero */
-
-/* L_nuo_shift_32: */
-	movl	%eax,%edx
-	xorl	%eax,%eax
-	subl	$32,EXP(%ebx)	/* This can cause an underflow */
-
-/* We need to shift left by 1 - 31 bits */
-L_nuo_shift_1:
-	bsrl	%edx,%ecx	/* get the required shift in %ecx */
-	subl	$31,%ecx
-	negl	%ecx
-	shld	%cl,%eax,%edx
-	shl	%cl,%eax
-	subl	%ecx,EXP(%ebx)	/* This can cause an underflow */
-
-	movl	%edx,SIGH(%ebx)
-	movl	%eax,SIGL(%ebx)
-	jmp	L_exit
-
-
diff --git a/sys/gnu/arch/i386/fpemul/reg_round.s b/sys/gnu/arch/i386/fpemul/reg_round.s
deleted file mode 100644
index c8e57f7dfcd..00000000000
--- a/sys/gnu/arch/i386/fpemul/reg_round.s
+++ /dev/null
@@ -1,664 +0,0 @@
-	.file "reg_round.S"
-/*	$OpenBSD: reg_round.s,v 1.4 2004/01/13 18:08:48 espie Exp $	*/
-/*
- *  reg_round.S
- *
- * Rounding/truncation/etc for FPU basic arithmetic functions.
- *
- * This code has four possible entry points.
- * The following must be entered by a jmp intruction:
- *   FPU_round, FPU_round_sqrt, and FPU_Arith_exit.
- *
- * The _round_reg entry point is intended to be used by C code.
- * From C, call as:
- * void round_reg(FPU_REG *arg, unsigned int extent, unsigned int control_w)
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: reg_round.s,v 1.3 1994/06/10 07:44:55 rich Exp $
- *
- */
-
-
-/*---------------------------------------------------------------------------+
- | Four entry points.                                                        |
- |                                                                           |
- | Needed by both the FPU_round and FPU_round_sqrt entry points:             |
- |  %eax:%ebx  64 bit significand                                            |
- |  %edx       32 bit extension of the significand                           |
- |  %edi       pointer to an FPU_REG for the result to be stored             |
- |  stack      calling function must have set up a C stack frame and         |
- |             pushed %esi, %edi, and %ebx                                   |
- |                                                                           |
- | Needed just for the FPU_round_sqrt entry point:                           |
- |  %cx  A control word in the same format as the FPU control word.          |
- | Otherwise, PARAM4 must give such a value.                                 |
- |                                                                           |
- |                                                                           |
- | The significand and its extension are assumed to be exact in the          |
- | following sense:                                                          |
- |   If the significand by itself is the exact result then the significand   |
- |   extension (%edx) must contain 0, otherwise the significand extension    |
- |   must be non-zero.                                                       |
- |   If the significand extension is non-zero then the significand is        |
- |   smaller than the magnitude of the correct exact result by an amount     |
- |   greater than zero and less than one ls bit of the significand.          |
- |   The significand extension is only required to have three possible       |
- |   non-zero values:                                                        |
- |       less than 0x80000000  <=> the significand is less than 1/2 an ls    |
- |                                 bit smaller than the magnitude of the     |
- |                                 true exact result.                        |
- |         exactly 0x80000000  <=> the significand is exactly 1/2 an ls bit  |
- |                                 smaller than the magnitude of the true    |
- |                                 exact result.                             |
- |    greater than 0x80000000  <=> the significand is more than 1/2 an ls    |
- |                                 bit smaller than the magnitude of the     |
- |                                 true exact result.                        |
- |                                                                           |
- +---------------------------------------------------------------------------*/
-
-/*---------------------------------------------------------------------------+
- |  The code in this module has become quite complex, but it should handle   |
- |  all of the FPU flags which are set at this stage of the basic arithmetic |
- |  computations.                                                            |
- |  There are a few rare cases where the results are not set identically to  |
- |  a real FPU. These require a bit more thought because at this stage the   |
- |  results of the code here appear to be more consistent...                 |
- |  This may be changed in a future version.                                 |
- +---------------------------------------------------------------------------*/
-
-
-#include <machine/asm.h>
-
-#include <gnu/arch/i386/fpemul/fpu_asm.h>
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-
-#define	LOST_DOWN	$1
-#define	LOST_UP		$2
-#define	DENORMAL	$1
-#define	UNMASKED_UNDERFLOW $2
-
-.data
-#ifdef __ELF__
-	.align 4,0
-#else
-	.align 2,0
-#endif
-FPU_bits_lost:
-	.byte	0
-FPU_denormal:
-	.byte	0
-
-.text
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-.globl FPU_round
-.globl FPU_round_sqrt
-.globl FPU_Arith_exit
-.globl _C_LABEL(round_reg)
-
-/* Entry point when called from C */
-_C_LABEL(round_reg):
-	pushl	%ebp
-	movl	%esp,%ebp
-	pushl	%esi
-	pushl	%edi
-	pushl	%ebx
-
-	movl	PARAM1,%edi
-	movl	SIGH(%edi),%eax
-	movl	SIGL(%edi),%ebx
-	movl	PARAM2,%edx
-	movl	PARAM3,%ecx
-	jmp	FPU_round_sqrt
-
-FPU_round:		/* Normal entry point */
-	movl	PARAM4,%ecx
-
-FPU_round_sqrt:		/* Entry point from wm_sqrt.S */
-
-#ifdef PARANOID
-/* Cannot use this here yet */
-/*	orl	%eax,%eax */
-/*	jns	L_entry_bugged */
-#endif /* PARANOID */
-
-	cmpl	EXP_UNDER,EXP(%edi)
-	jle	xMake_denorm			/* The number is a de-normal*/
-
-	movb	$0,FPU_denormal			/* 0 -> not a de-normal*/
-
-xDenorm_done:
-	movb	$0,FPU_bits_lost		/*No bits yet lost in rounding*/
-
-	movl	%ecx,%esi
-	andl	CW_PC,%ecx
-	cmpl	PR_64_BITS,%ecx
-	je	LRound_To_64
-
-	cmpl	PR_53_BITS,%ecx
-	je	LRound_To_53
-
-	cmpl	PR_24_BITS,%ecx
-	je	LRound_To_24
-
-#ifdef PARANOID
-	jmp	L_bugged	/* There is no bug, just a bad control word */
-#endif /* PARANOID */
-
-
-/* Round etc to 24 bit precision */
-LRound_To_24:
-	movl	%esi,%ecx
-	andl	CW_RC,%ecx
-	cmpl	RC_RND,%ecx
-	je	LRound_nearest_24
-
-	cmpl	RC_CHOP,%ecx
-	je	LCheck_truncate_24
-
-	cmpl	RC_UP,%ecx		/* Towards +infinity */
-	je	LUp_24
-
-	cmpl	RC_DOWN,%ecx		/* Towards -infinity */
-	je	LDown_24
-
-#ifdef PARANOID
-	jmp	L_bugged
-#endif /* PARANOID */
-
-LUp_24:
-	cmpb	SIGN_POS,SIGN(%edi)
-	jne	LCheck_truncate_24	/* If negative then  up==truncate */
-
-	jmp	LCheck_24_round_up
-
-LDown_24:
-	cmpb	SIGN_POS,SIGN(%edi)
-	je	LCheck_truncate_24	/* If positive then  down==truncate */
-
-LCheck_24_round_up:
-	movl	%eax,%ecx
-	andl	$0x000000ff,%ecx
-	orl	%ebx,%ecx
-	orl	%edx,%ecx
-	jnz	LDo_24_round_up
-	jmp	LRe_normalise
-
-LRound_nearest_24:
-	/* Do rounding of the 24th bit if needed (nearest or even) */
-	movl	%eax,%ecx
-	andl	$0x000000ff,%ecx
-	cmpl	$0x00000080,%ecx
-	jc	LCheck_truncate_24	/*less than half, no increment needed*/
-
-	jne	LGreater_Half_24	/* greater than half, increment needed*/
-
-	/* Possibly half, we need to check the ls bits */
-	orl	%ebx,%ebx
-	jnz	LGreater_Half_24	/* greater than half, increment needed*/
-
-	orl	%edx,%edx
-	jnz	LGreater_Half_24	/* greater than half, increment needed*/
-
-	/* Exactly half, increment only if 24th bit is 1 (round to even)*/
-	testl	$0x00000100,%eax
-	jz	LDo_truncate_24
-
-LGreater_Half_24:			/*Rounding: increment at the 24th bit*/
-LDo_24_round_up:
-	andl	$0xffffff00,%eax	/*Truncate to 24 bits*/
-	xorl	%ebx,%ebx
-	movb	LOST_UP,FPU_bits_lost
-	addl	$0x00000100,%eax
-	jmp	LCheck_Round_Overflow
-
-LCheck_truncate_24:
-	movl	%eax,%ecx
-	andl	$0x000000ff,%ecx
-	orl	%ebx,%ecx
-	orl	%edx,%ecx
-	jz	LRe_normalise			/* No truncation needed*/
-
-LDo_truncate_24:
-	andl	$0xffffff00,%eax	/* Truncate to 24 bits*/
-	xorl	%ebx,%ebx
-	movb	LOST_DOWN,FPU_bits_lost
-	jmp	LRe_normalise
-
-
-/* Round etc to 53 bit precision */
-LRound_To_53:
-	movl	%esi,%ecx
-	andl	CW_RC,%ecx
-	cmpl	RC_RND,%ecx
-	je	LRound_nearest_53
-
-	cmpl	RC_CHOP,%ecx
-	je	LCheck_truncate_53
-
-	cmpl	RC_UP,%ecx		/* Towards +infinity*/
-	je	LUp_53
-
-	cmpl	RC_DOWN,%ecx		/* Towards -infinity*/
-	je	LDown_53
-
-#ifdef PARANOID
-	jmp	L_bugged
-#endif /* PARANOID */
-
-LUp_53:
-	cmpb	SIGN_POS,SIGN(%edi)
-	jne	LCheck_truncate_53	/* If negative then  up==truncate*/
-
-	jmp	LCheck_53_round_up
-
-LDown_53:
-	cmpb	SIGN_POS,SIGN(%edi)
-	je	LCheck_truncate_53	/* If positive then  down==truncate*/
-
-LCheck_53_round_up:
-	movl	%ebx,%ecx
-	andl	$0x000007ff,%ecx
-	orl	%edx,%ecx
-	jnz	LDo_53_round_up
-	jmp	LRe_normalise
-
-LRound_nearest_53:
-	/*Do rounding of the 53rd bit if needed (nearest or even)*/
-	movl	%ebx,%ecx
-	andl	$0x000007ff,%ecx
-	cmpl	$0x00000400,%ecx
-	jc	LCheck_truncate_53	/* less than half, no increment needed*/
-
-	jnz	LGreater_Half_53	/* greater than half, increment needed*/
-
-	/*Possibly half, we need to check the ls bits*/
-	orl	%edx,%edx
-	jnz	LGreater_Half_53	/* greater than half, increment needed*/
-
-	/* Exactly half, increment only if 53rd bit is 1 (round to even)*/
-	testl	$0x00000800,%ebx
-	jz	LTruncate_53
-
-LGreater_Half_53:			/*Rounding: increment at the 53rd bit*/
-LDo_53_round_up:
-	movb	LOST_UP,FPU_bits_lost
-	andl	$0xfffff800,%ebx	/* Truncate to 53 bits*/
-	addl	$0x00000800,%ebx
-	adcl	$0,%eax
-	jmp	LCheck_Round_Overflow
-
-LCheck_truncate_53:
-	movl	%ebx,%ecx
-	andl	$0x000007ff,%ecx
-	orl	%edx,%ecx
-	jz	LRe_normalise
-
-LTruncate_53:
-	movb	LOST_DOWN,FPU_bits_lost
-	andl	$0xfffff800,%ebx	/* Truncate to 53 bits*/
-	jmp	LRe_normalise
-
-
-/* Round etc to 64 bit precision*/
-LRound_To_64:
-	movl	%esi,%ecx
-	andl	CW_RC,%ecx
-	cmpl	RC_RND,%ecx
-	je	LRound_nearest_64
-
-	cmpl	RC_CHOP,%ecx
-	je	LCheck_truncate_64
-
-	cmpl	RC_UP,%ecx		/* Towards +infinity*/
-	je	LUp_64
-
-	cmpl	RC_DOWN,%ecx		/* Towards -infinity*/
-	je	LDown_64
-
-#ifdef PARANOID
-	jmp	L_bugged
-#endif /* PARANOID */
-
-LUp_64:
-	cmpb	SIGN_POS,SIGN(%edi)
-	jne	LCheck_truncate_64	/* If negative then  up==truncate*/
-
-	orl	%edx,%edx
-	jnz	LDo_64_round_up
-	jmp	LRe_normalise
-
-LDown_64:
-	cmpb	SIGN_POS,SIGN(%edi)
-	je	LCheck_truncate_64	/*If positive then  down==truncate*/
-
-	orl	%edx,%edx
-	jnz	LDo_64_round_up
-	jmp	LRe_normalise
-
-LRound_nearest_64:
-	cmpl	$0x80000000,%edx
-	jc	LCheck_truncate_64
-
-	jne	LDo_64_round_up
-
-	/* Now test for round-to-even */
-	testb	$1,%bl
-	jz	LCheck_truncate_64
-
-LDo_64_round_up:
-	movb	LOST_UP,FPU_bits_lost
-	addl	$1,%ebx
-	adcl	$0,%eax
-
-LCheck_Round_Overflow:
-	jnc	LRe_normalise		/* Rounding done, no overflow */
-
-	/* Overflow, adjust the result (to 1.0) */
-	rcrl	$1,%eax
-	rcrl	$1,%ebx
-	incl	EXP(%edi)
-	jmp	LRe_normalise
-
-LCheck_truncate_64:
-	orl	%edx,%edx
-	jz	LRe_normalise
-
-LTruncate_64:
-	movb	LOST_DOWN,FPU_bits_lost
-
-LRe_normalise:
-	testb	$0xff,FPU_denormal
-	jnz	xNormalise_result
-
-xL_Normalised:
-	cmpb	LOST_UP,FPU_bits_lost
-	je	xL_precision_lost_up
-
-	cmpb	LOST_DOWN,FPU_bits_lost
-	je	xL_precision_lost_down
-
-xL_no_precision_loss:
-	cmpl	EXP_OVER,EXP(%edi)
-	jge	L_overflow
-
-	/* store the result */
-	movb	TW_Valid,TAG(%edi)
-
-xL_Store_significand:
-	movl	%eax,SIGH(%edi)
-	movl	%ebx,SIGL(%edi)
-
-FPU_Arith_exit:
-	popl	%ebx
-	popl	%edi
-	popl	%esi
-	leave
-	ret
-
-
-/* Set the FPU status flags to represent precision loss due to*/
-/* round-up.*/
-xL_precision_lost_up:
-	push	%eax
-	call	_C_LABEL(set_precision_flag_up)
-	popl	%eax
-	jmp	xL_no_precision_loss
-
-/* Set the FPU status flags to represent precision loss due to*/
-/* truncation.*/
-xL_precision_lost_down:
-	push	%eax
-	call	_C_LABEL(set_precision_flag_down)
-	popl	%eax
-	jmp	xL_no_precision_loss
-
-
-/* The number is a denormal (which might get rounded up to a normal)
-// Shift the number right the required number of bits, which will
-// have to be undone later...*/
-xMake_denorm:
-	/* The action to be taken depends upon whether the underflow
-	// exception is masked*/
-	testb	CW_Underflow,%cl		/* Underflow mask.*/
-	jz	xUnmasked_underflow		/* Do not make a denormal.*/
-
-	movb	DENORMAL,FPU_denormal
-
-	pushl	%ecx		/* Save*/
-	movl	EXP(%edi),%ecx
-	subl	EXP_UNDER+1,%ecx
-	negl	%ecx
-
-	cmpl	$64,%ecx	/* shrd only works for 0..31 bits */
-	jnc	xDenorm_shift_more_than_63
-
-	cmpl	$32,%ecx	/* shrd only works for 0..31 bits */
-	jnc	xDenorm_shift_more_than_32
-
-/* We got here without jumps by assuming that the most common requirement
-//   is for a small de-normalising shift.
-// Shift by [1..31] bits */
-	addl	%ecx,EXP(%edi)
-	orl	%edx,%edx	/* extension*/
-	setne	%ch
-	xorl	%edx,%edx
-	shrd	%cl,%ebx,%edx
-	shrd	%cl,%eax,%ebx
-	shr	%cl,%eax
-	orb	%ch,%dl
-	popl	%ecx
-	jmp	xDenorm_done
-
-/* Shift by [32..63] bits*/
-xDenorm_shift_more_than_32:
-	addl	%ecx,EXP(%edi)
-	subb	$32,%cl
-	orl	%edx,%edx
-	setne	%ch
-	orb	%ch,%bl
-	xorl	%edx,%edx
-	shrd	%cl,%ebx,%edx
-	shrd	%cl,%eax,%ebx
-	shr	%cl,%eax
-	orl	%edx,%edx		/*test these 32 bits*/
-	setne	%cl
-	orb	%ch,%bl
-	orb	%cl,%bl
-	movl	%ebx,%edx
-	movl	%eax,%ebx
-	xorl	%eax,%eax
-	popl	%ecx
-	jmp	xDenorm_done
-
-/* Shift by [64..) bits*/
-xDenorm_shift_more_than_63:
-	cmpl	$64,%ecx
-	jne	xDenorm_shift_more_than_64
-
-/* Exactly 64 bit shift*/
-	addl	%ecx,EXP(%edi)
-	xorl	%ecx,%ecx
-	orl	%edx,%edx
-	setne	%cl
-	orl	%ebx,%ebx
-	setne	%ch
-	orb	%ch,%cl
-	orb	%cl,%al
-	movl	%eax,%edx
-	xorl	%eax,%eax
-	xorl	%ebx,%ebx
-	popl	%ecx
-	jmp	xDenorm_done
-
-xDenorm_shift_more_than_64:
-	movl	EXP_UNDER+1,EXP(%edi)
-/* This is easy, %eax must be non-zero, so..*/
-	movl	$1,%edx
-	xorl	%eax,%eax
-	xorl	%ebx,%ebx
-	popl	%ecx
-	jmp	xDenorm_done
-
-
-xUnmasked_underflow:
-	/* Increase the exponent by the magic number*/
-	addl	$(3*(1<<13)),EXP(%edi)
-	movb	UNMASKED_UNDERFLOW,FPU_denormal
-	jmp	xDenorm_done
-
-
-/* Undo the de-normalisation.*/
-xNormalise_result:
-	cmpb	UNMASKED_UNDERFLOW,FPU_denormal
-	je	xSignal_underflow
-
-/* The number must be a denormal if we got here.*/
-#ifdef PARANOID
-	/* But check it... just in case.*/
-	cmpl	EXP_UNDER+1,EXP(%edi)
-	jne	L_norm_bugged
-#endif /* PARANOID */
-
-	orl	%eax,%eax	/* ms bits*/
-	jnz	LNormalise_shift_up_to_31	/* Shift left 0 - 31 bits*/
-
-	orl	%ebx,%ebx
-	jz	L_underflow_to_zero	/* The contents are zero*/
-
-/* Shift left 32 - 63 bits*/
-	movl	%ebx,%eax
-	xorl	%ebx,%ebx
-	subl	$32,EXP(%edi)
-
-LNormalise_shift_up_to_31:
-	bsrl	%eax,%ecx	/* get the required shift in %ecx */
-	subl	$31,%ecx
-	negl	%ecx
-	shld	%cl,%ebx,%eax
-	shl	%cl,%ebx
-	subl	%ecx,EXP(%edi)
-
-LNormalise_shift_done:
-	testb	$0xff,FPU_bits_lost	/* bits lost == underflow*/
-	jz	xL_Normalised
-
-	/* There must be a masked underflow*/
-	push	%eax
-	pushl	EX_Underflow
-	call	_C_LABEL(exception)
-	popl	%eax
-	popl	%eax
-	jmp	xL_Normalised
-
-
-/* The operations resulted in a number too small to represent.
-// Masked response.*/
-L_underflow_to_zero:
-	push	%eax
-	call	_C_LABEL(set_precision_flag_down)
-	popl	%eax
-
-	push	%eax
-	pushl	EX_Underflow
-	call	_C_LABEL(exception)
-	popl	%eax
-	popl	%eax
-
-	movb	TW_Zero,TAG(%edi)
-	jmp	xL_Store_significand
-
-
-/* The operations resulted in a number too large to represent.*/
-L_overflow:
-	push	%edi
-	call	_C_LABEL(arith_overflow)
-	pop	%edi
-	jmp	FPU_Arith_exit
-
-
-xSignal_underflow:
-	push	%eax
-	pushl	EX_Underflow
-	call	EXCEPTION
-	popl	%eax
-	popl	%eax
-	jmp	xL_Normalised
-
-
-#ifdef PARANOID
-/* If we ever get here then we have problems! */
-L_bugged:
-	pushl	EX_INTERNAL|0x201
-	call	EXCEPTION
-	popl	%ebx
-	jmp	FPU_Arith_exit
-
-L_norm_bugged:
-	pushl	EX_INTERNAL|0x216
-	call	EXCEPTION
-	popl	%ebx
-	jmp	FPU_Arith_exit
-
-L_entry_bugged:
-	pushl	EX_INTERNAL|0x217
-	call	EXCEPTION
-	popl	%ebx
-	jmp	FPU_Arith_exit
-#endif /* PARANOID */
diff --git a/sys/gnu/arch/i386/fpemul/reg_u_add.s b/sys/gnu/arch/i386/fpemul/reg_u_add.s
deleted file mode 100644
index 721bdf7faa1..00000000000
--- a/sys/gnu/arch/i386/fpemul/reg_u_add.s
+++ /dev/null
@@ -1,251 +0,0 @@
-	.file	"reg_u_add.S"
-/*	$OpenBSD: reg_u_add.s,v 1.3 2004/01/13 18:08:48 espie Exp $	*/
-/*
- *  reg_u_add.S
- *
- * Add two valid (TW_Valid) FPU_REG numbers, of the same sign, and put the
- *   result in a destination FPU_REG.
- *
- * Call from C as:
- *   void reg_u_add(FPU_REG *arg1, FPU_REG *arg2, FPU_REG *answ,
- *                                                int control_w)
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: reg_u_add.s,v 1.3 1994/06/10 07:44:56 rich Exp $
- *
- */
-
-
-/*
- |    Kernel addition routine reg_u_add(reg *arg1, reg *arg2, reg *answ).
- |    Takes two valid reg f.p. numbers (TW_Valid), which are
- |    treated as unsigned numbers,
- |    and returns their sum as a TW_Valid or TW_S f.p. number.
- |    The returned number is normalized.
- |    Basic checks are performed if PARANOID is defined.
- */
-
-#include <machine/asm.h>
-
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/fpu_asm.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-
-.text
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-.globl _C_LABEL(reg_u_add)
-_C_LABEL(reg_u_add):
-	pushl	%ebp
-	movl	%esp,%ebp
-/*	subl	$16,%esp*/
-	pushl	%esi
-	pushl	%edi
-	pushl	%ebx
-
-	movl	PARAM1,%esi		/* source 1 */
-	movl	PARAM2,%edi		/* source 2 */
-
-#ifdef DENORM_OPERAND
-	cmpl	EXP_UNDER,EXP(%esi)
-	jg	xOp1_not_denorm
-
-	call	_C_LABEL(denormal_operand)
-	orl	%eax,%eax
-	jnz	FPU_Arith_exit
-
-xOp1_not_denorm:
-	cmpl	EXP_UNDER,EXP(%edi)
-	jg	xOp2_not_denorm
-
-	call	_C_LABEL(denormal_operand)
-	orl	%eax,%eax
-	jnz	FPU_Arith_exit
-
-xOp2_not_denorm:
-#endif /* DENORM_OPERAND */
-
-/*	xorl	%ecx,%ecx*/
-	movl	EXP(%esi),%ecx
-	subl	EXP(%edi),%ecx		/* exp1 - exp2 */
-/*	jnc	L_arg1_larger*/
-	jge	L_arg1_larger
-
-	/* num1 is smaller */
-	movl	SIGL(%esi),%ebx
-	movl	SIGH(%esi),%eax
-
-	movl	%edi,%esi
-	negw	%cx
-	jmp	L_accum_loaded
-
-L_arg1_larger:
-	/* num1 has larger or equal exponent */
-	movl	SIGL(%edi),%ebx
-	movl	SIGH(%edi),%eax
-
-L_accum_loaded:
-	movl	PARAM3,%edi		/* destination */
-	movb	SIGN(%esi),%dl
-	movb	%dl,SIGN(%edi)		/* Copy the sign from the first arg */
-
-
-	movl	EXP(%esi),%edx
-	movl	%edx,EXP(%edi)	/* Copy exponent to destination */
-
-	xorl	%edx,%edx		/* clear the extension */
-
-#ifdef PARANOID
-	testl	$0x80000000,%eax
-	je	L_bugged
-
-	testl	$0x80000000,SIGH(%esi)
-	je	L_bugged
-#endif /* PARANOID */
-
-/* The number to be shifted is in %eax:%ebx:%edx*/
-	cmpw	$32,%cx		/* shrd only works for 0..31 bits */
-	jnc	L_more_than_31
-
-/* less than 32 bits */
-	shrd	%cl,%ebx,%edx
-	shrd	%cl,%eax,%ebx
-	shr	%cl,%eax
-	jmp	L_shift_done
-
-L_more_than_31:
-	cmpw	$64,%cx
-	jnc	L_more_than_63
-
-	subb	$32,%cl
-	jz	L_exactly_32
-
-	shrd	%cl,%eax,%edx
-	shr	%cl,%eax
-	orl	%ebx,%ebx
-	jz	L_more_31_no_low	/* none of the lowest bits is set*/
-
-	orl	$1,%edx			/* record the fact in the extension*/
-
-L_more_31_no_low:
-	movl	%eax,%ebx
-	xorl	%eax,%eax
-	jmp	L_shift_done
-
-L_exactly_32:
-	movl	%ebx,%edx
-	movl	%eax,%ebx
-	xorl	%eax,%eax
-	jmp	L_shift_done
-
-L_more_than_63:
-	cmpw	$65,%cx
-	jnc	L_more_than_64
-
-	movl	%eax,%edx
-	orl	%ebx,%ebx
-	jz	L_more_63_no_low
-
-	orl	$1,%edx
-	jmp	L_more_63_no_low
-
-L_more_than_64:
-	movl	$1,%edx		/* The shifted nr always at least one '1'*/
-
-L_more_63_no_low:
-	xorl	%ebx,%ebx
-	xorl	%eax,%eax
-
-L_shift_done:
-	/* Now do the addition */
-	addl	SIGL(%esi),%ebx
-	adcl	SIGH(%esi),%eax
-	jnc	L_round_the_result
-
-	/* Overflow, adjust the result */
-	rcrl	$1,%eax
-	rcrl	$1,%ebx
-	rcrl	$1,%edx
-	jnc	L_no_bit_lost
-
-	orl	$1,%edx
-
-L_no_bit_lost:
-	incl	EXP(%edi)
-
-L_round_the_result:
-	jmp	FPU_round	/* Round the result*/
-
-
-
-#ifdef PARANOID
-/* If we ever get here then we have problems! */
-L_bugged:
-	pushl	EX_INTERNAL|0x201
-	call	EXCEPTION
-	pop	%ebx
-	jmp	L_exit
-#endif /* PARANOID */
-
-
-L_exit:
-	popl	%ebx
-	popl	%edi
-	popl	%esi
-	leave
-	ret
diff --git a/sys/gnu/arch/i386/fpemul/reg_u_div.s b/sys/gnu/arch/i386/fpemul/reg_u_div.s
deleted file mode 100644
index 9e77537f75a..00000000000
--- a/sys/gnu/arch/i386/fpemul/reg_u_div.s
+++ /dev/null
@@ -1,517 +0,0 @@
-	.file	"reg_u_div.S"
-/*	$OpenBSD: reg_u_div.s,v 1.3 2004/01/13 18:08:48 espie Exp $	*/
-/*
- *  reg_u_div.S
- *
- * Core division routines
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *      $FreeBSD: reg_u_div.s,v 1.3 1994/06/10 07:44:57 rich Exp $
- *
- */
-
-/*---------------------------------------------------------------------------+
- |  Kernel for the division routines.                                        |
- |                                                                           |
- |  void reg_u_div(FPU_REG *a, FPU_REG *a,                                   |
- |                 FPU_REG *dest, unsigned int control_word)                 |
- |                                                                           |
- |  Does not compute the destination exponent, but does adjust it.           |
- +---------------------------------------------------------------------------*/
-
-#include <machine/asm.h>
-
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/fpu_asm.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-
-
-/* #define	dSIGL(x)	(x) */
-/* #define	dSIGH(x)	4(x) */
-
-
-.data
-/*
-	Local storage:
-	Result:		accum_3:accum_2:accum_1:accum_0
-	Overflow flag:	ovfl_flag
- */
-#ifdef __ELF__
-	.align 4,0
-#else
-	.align 2,0
-#endif
-accum_3:
-	.long	0
-accum_2:
-	.long	0
-accum_1:
-	.long	0
-accum_0:
-	.long	0
-result_1:
-	.long	0
-result_2:
-	.long	0
-ovfl_flag:
-	.byte	0
-
-
-.text
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-
-.globl _C_LABEL(reg_u_div)
-
-.globl _C_LABEL(divide_kernel)
-
-_C_LABEL(reg_u_div):
-	pushl	%ebp
-	movl	%esp,%ebp
-
-	pushl	%esi
-	pushl	%edi
-	pushl	%ebx
-
-	movl	PARAM1,%esi	/* pointer to num */
-	movl	PARAM2,%ebx	/* pointer to denom */
-	movl	PARAM3,%edi	/* pointer to answer */
-
-#ifdef DENORM_OPERAND
-	movl	EXP(%esi),%eax
-	cmpl	EXP_UNDER,%eax
-	jg	xOp1_not_denorm
-
-	call	_C_LABEL(denormal_operand)
-	orl	%eax,%eax
-	jnz	FPU_Arith_exit
-
-xOp1_not_denorm:
-	movl	EXP(%ebx),%eax
-	cmpl	EXP_UNDER,%eax
-	jg	xOp2_not_denorm
-
-	call	_C_LABEL(denormal_operand)
-	orl	%eax,%eax
-	jnz	FPU_Arith_exit
-
-xOp2_not_denorm:
-#endif /* DENORM_OPERAND */
-
-_C_LABEL(divide_kernel):
-#ifdef PARANOID
-/*	testl	$0x80000000, SIGH(%esi)	*//* Dividend */
-/*	je	L_bugged */
-	testl	$0x80000000, SIGH(%ebx)	/* Divisor*/
-	je	L_bugged
-#endif /* PARANOID */
-
-/* Check if the divisor can be treated as having just 32 bits */
-	cmpl	$0,SIGL(%ebx)
-	jnz	L_Full_Division	/* Can't do a quick divide */
-
-/* We should be able to zip through the division here */
-	movl	SIGH(%ebx),%ecx	/* The divisor */
-	movl	SIGH(%esi),%edx	/* Dividend */
-	movl	SIGL(%esi),%eax	/* Dividend */
-
-	cmpl	%ecx,%edx
-	setaeb	ovfl_flag	/* Keep a record */
-	jb	L_no_adjust
-
-	subl	%ecx,%edx	/* Prevent the overflow */
-
-L_no_adjust:
-	/* Divide the 64 bit number by the 32 bit denominator */
-	divl	%ecx
-	movl	%eax,result_2
-
-	/* Work on the remainder of the first division */
-	xorl	%eax,%eax
-	divl	%ecx
-	movl	%eax,result_1
-
-	/* Work on the remainder of the 64 bit division */
-	xorl	%eax,%eax
-	divl	%ecx
-
-	testb	$255,ovfl_flag	/* was the num > denom ? */
-	je	L_no_overflow
-
-	/* Do the shifting here */
-	/* increase the exponent */
-	incl	EXP(%edi)
-
-	/* shift the mantissa right one bit */
-	stc			/* To set the ms bit */
-	rcrl	result_2
-	rcrl	result_1
-	rcrl	%eax
-
-L_no_overflow:
-	jmp	LRound_precision	/* Do the rounding as required*/
-
-
-/*---------------------------------------------------------------------------+
- |  Divide:   Return  arg1/arg2 to arg3.                                     |
- |                                                                           |
- |  This routine does not use the exponents of arg1 and arg2, but does       |
- |  adjust the exponent of arg3.                                             |
- |                                                                           |
- |  The maximum returned value is (ignoring exponents)                       |
- |               .ffffffff ffffffff                                          |
- |               ------------------  =  1.ffffffff fffffffe                  |
- |               .80000000 00000000                                          |
- | and the minimum is                                                        |
- |               .80000000 00000000                                          |
- |               ------------------  =  .80000000 00000001   (rounded)       |
- |               .ffffffff ffffffff                                          |
- |                                                                           |
- +---------------------------------------------------------------------------*/
-
-
-L_Full_Division:
-	/* Save extended dividend in local register*/
-	movl	SIGL(%esi),%eax
-	movl	%eax,accum_2
-	movl	SIGH(%esi),%eax
-	movl	%eax,accum_3
-	xorl	%eax,%eax
-	movl	%eax,accum_1	/* zero the extension */
-	movl	%eax,accum_0	/* zero the extension */
-
-	movl	SIGL(%esi),%eax	/* Get the current num */
-	movl	SIGH(%esi),%edx
-
-/*----------------------------------------------------------------------*/
-/* Initialization done */
-/* Do the first 32 bits */
-
-	movb	$0,ovfl_flag
-	cmpl	SIGH(%ebx),%edx	/* Test for imminent overflow */
-	jb	LLess_than_1
-	ja	LGreater_than_1
-
-	cmpl	SIGL(%ebx),%eax
-	jb	LLess_than_1
-
-LGreater_than_1:
-/* The dividend is greater or equal, would cause overflow */
-	setaeb	ovfl_flag		/* Keep a record */
-
-	subl	SIGL(%ebx),%eax
-	sbbl	SIGH(%ebx),%edx	/* Prevent the overflow */
-	movl	%eax,accum_2
-	movl	%edx,accum_3
-
-LLess_than_1:
-/* At this point, we have a dividend < divisor, with a record of
-   adjustment in ovfl_flag */
-
-	/* We will divide by a number which is too large */
-	movl	SIGH(%ebx),%ecx
-	addl	$1,%ecx
-	jnc	LFirst_div_not_1
-
-	/* here we need to divide by 100000000h,
-	   i.e., no division at all.. */
-	mov	%edx,%eax
-	jmp	LFirst_div_done
-
-LFirst_div_not_1:
-	divl	%ecx		/* Divide the numerator by the augmented
-				   denom ms dw */
-
-LFirst_div_done:
-	movl	%eax,result_2	/* Put the result in the answer */
-
-	mull	SIGH(%ebx)	/* mul by the ms dw of the denom */
-
-	subl	%eax,accum_2	/* Subtract from the num local reg */
-	sbbl	%edx,accum_3
-
-	movl	result_2,%eax	/* Get the result back */
-	mull	SIGL(%ebx)	/* now mul the ls dw of the denom */
-
-	subl	%eax,accum_1	/* Subtract from the num local reg */
-	sbbl	%edx,accum_2
-	sbbl	$0,accum_3
-	je	LDo_2nd_32_bits		/* Must check for non-zero result here */
-
-#ifdef PARANOID
-	jb	L_bugged_1
-#endif /* PARANOID */
-
-	/* need to subtract another once of the denom */
-	incl	result_2	/* Correct the answer */
-
-	movl	SIGL(%ebx),%eax
-	movl	SIGH(%ebx),%edx
-	subl	%eax,accum_1	/* Subtract from the num local reg */
-	sbbl	%edx,accum_2
-
-#ifdef PARANOID
-	sbbl	$0,accum_3
-	jne	L_bugged_1	/* Must check for non-zero result here */
-#endif /* PARANOID */
-
-/*----------------------------------------------------------------------*/
-/* Half of the main problem is done, there is just a reduced numerator
-   to handle now */
-/* Work with the second 32 bits, accum_0 not used from now on */
-LDo_2nd_32_bits:
-	movl	accum_2,%edx	/* get the reduced num */
-	movl	accum_1,%eax
-
-	/* need to check for possible subsequent overflow */
-	cmpl	SIGH(%ebx),%edx
-	jb	LDo_2nd_div
-	ja	LPrevent_2nd_overflow
-
-	cmpl	SIGL(%ebx),%eax
-	jb	LDo_2nd_div
-
-LPrevent_2nd_overflow:
-/* The numerator is greater or equal, would cause overflow */
-	/* prevent overflow */
-	subl	SIGL(%ebx),%eax
-	sbbl	SIGH(%ebx),%edx
-	movl	%edx,accum_2
-	movl	%eax,accum_1
-
-	incl	result_2	/* Reflect the subtraction in the answer */
-
-#ifdef PARANOID
-	je	L_bugged_2	/* Can't bump the result to 1.0 */
-#endif /* PARANOID */
-
-LDo_2nd_div:
-	cmpl	$0,%ecx		/* augmented denom msw*/
-	jnz	LSecond_div_not_1
-
-	/* %ecx == 0, we are dividing by 1.0 */
-	mov	%edx,%eax
-	jmp	LSecond_div_done
-
-LSecond_div_not_1:
-	divl	%ecx		/* Divide the numerator by the denom ms dw */
-
-LSecond_div_done:
-	movl	%eax,result_1	/* Put the result in the answer */
-
-	mull	SIGH(%ebx)	/* mul by the ms dw of the denom */
-
-	subl	%eax,accum_1	/* Subtract from the num local reg */
-	sbbl	%edx,accum_2
-
-#ifdef PARANOID
-	jc	L_bugged_2
-#endif /* PARANOID */
-
-	movl	result_1,%eax	/* Get the result back */
-	mull	SIGL(%ebx)	/* now mul the ls dw of the denom */
-
-	subl	%eax,accum_0	/* Subtract from the num local reg */
-	sbbl	%edx,accum_1	/* Subtract from the num local reg */
-	sbbl	$0,accum_2
-
-#ifdef PARANOID
-	jc	L_bugged_2
-#endif /* PARANOID */
-
-	jz	LDo_3rd_32_bits
-
-#ifdef PARANOID
-	cmpl	$1,accum_2
-	jne	L_bugged_2
-#endif /* PARANOID */
-
-	/* need to subtract another once of the denom */
-	movl	SIGL(%ebx),%eax
-	movl	SIGH(%ebx),%edx
-	subl	%eax,accum_0	/* Subtract from the num local reg */
-	sbbl	%edx,accum_1
-	sbbl	$0,accum_2
-
-#ifdef PARANOID
-	jc	L_bugged_2
-	jne	L_bugged_2
-#endif /* PARANOID */
-
-	addl	$1,result_1	/* Correct the answer */
-	adcl	$0,result_2
-
-#ifdef PARANOID
-	jc	L_bugged_2	/* Must check for non-zero result here */
-#endif /* PARANOID */
-
-/*----------------------------------------------------------------------*/
-/* The division is essentially finished here, we just need to perform
-   tidying operations. */
-/* deal with the 3rd 32 bits */
-LDo_3rd_32_bits:
-	movl	accum_1,%edx		/* get the reduced num */
-	movl	accum_0,%eax
-
-	/* need to check for possible subsequent overflow */
-	cmpl	SIGH(%ebx),%edx	/* denom*/
-	jb	LRound_prep
-	ja	LPrevent_3rd_overflow
-
-	cmpl	SIGL(%ebx),%eax	/* denom */
-	jb	LRound_prep
-
-LPrevent_3rd_overflow:
-	/* prevent overflow */
-	subl	SIGL(%ebx),%eax
-	sbbl	SIGH(%ebx),%edx
-	movl	%edx,accum_1
-	movl	%eax,accum_0
-
-	addl	$1,result_1	/* Reflect the subtraction in the answer */
-	adcl	$0,result_2
-	jne	LRound_prep
-	jnc	LRound_prep
-
-	/* This is a tricky spot, there is an overflow of the answer */
-	movb	$255,ovfl_flag		/* Overflow -> 1.000 */
-
-LRound_prep:
-/* Prepare for rounding.
-// To test for rounding, we just need to compare 2*accum with the
-// denom. */
-	movl	accum_0,%ecx
-	movl	accum_1,%edx
-	movl	%ecx,%eax
-	orl	%edx,%eax
-	jz	LRound_ovfl		/* The accumulator contains zero.*/
-
-	/* Multiply by 2 */
-	clc
-	rcll	$1,%ecx
-	rcll	$1,%edx
-	jc	LRound_large		/* No need to compare, denom smaller */
-
-	subl	SIGL(%ebx),%ecx
-	sbbl	SIGH(%ebx),%edx
-	jnc	LRound_not_small
-
-	movl	$0x70000000,%eax	/* Denom was larger */
-	jmp	LRound_ovfl
-
-LRound_not_small:
-	jnz	LRound_large
-
-	movl	$0x80000000,%eax	/* Remainder was exactly 1/2 denom */
-	jmp	LRound_ovfl
-
-LRound_large:
-	movl	$0xff000000,%eax	/* Denom was smaller */
-
-LRound_ovfl:
-/* We are now ready to deal with rounding, but first we must get
-   the bits properly aligned */
-	testb	$255,ovfl_flag	/* was the num > denom ? */
-	je	LRound_precision
-
-	incl	EXP(%edi)
-
-	/* shift the mantissa right one bit */
-	stc			/* Will set the ms bit */
-	rcrl	result_2
-	rcrl	result_1
-	rcrl	%eax
-
-/* Round the result as required */
-LRound_precision:
-	decl	EXP(%edi)	/* binary point between 1st & 2nd bits */
-
-	movl	%eax,%edx
-	movl	result_1,%ebx
-	movl	result_2,%eax
-	jmp	FPU_round
-
-
-#ifdef PARANOID
-/* The logic is wrong if we got here */
-L_bugged:
-	pushl	EX_INTERNAL|0x202
-	call	EXCEPTION
-	pop	%ebx
-	jmp	L_exit
-
-L_bugged_1:
-	pushl	EX_INTERNAL|0x203
-	call	EXCEPTION
-	pop	%ebx
-	jmp	L_exit
-
-L_bugged_2:
-	pushl	EX_INTERNAL|0x204
-	call	EXCEPTION
-	pop	%ebx
-	jmp	L_exit
-
-L_exit:
-	popl	%ebx
-	popl	%edi
-	popl	%esi
-
-	leave
-	ret
-#endif /* PARANOID */
diff --git a/sys/gnu/arch/i386/fpemul/reg_u_mul.s b/sys/gnu/arch/i386/fpemul/reg_u_mul.s
deleted file mode 100644
index 7add8ab89ab..00000000000
--- a/sys/gnu/arch/i386/fpemul/reg_u_mul.s
+++ /dev/null
@@ -1,210 +0,0 @@
-	.file	"reg_u_mul.S"
-/*	$OpenBSD: reg_u_mul.s,v 1.3 2004/01/13 18:08:48 espie Exp $	*/
-/*
- *  reg_u_mul.S
- *
- * Core multiplication routine
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: reg_u_mul.s,v 1.3 1994/06/10 07:44:58 rich Exp $
- *
- */
-
-/*---------------------------------------------------------------------------+
- |   Basic multiplication routine.                                           |
- |   Does not check the resulting exponent for overflow/underflow            |
- |                                                                           |
- |   reg_u_mul(FPU_REG *a, FPU_REG *b, FPU_REG *c, unsigned int cw);         |
- |                                                                           |
- |   Internal working is at approx 128 bits.                                 |
- |   Result is rounded to nearest 53 or 64 bits, using "nearest or even".    |
- +---------------------------------------------------------------------------*/
-
-#include <machine/asm.h>
-
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/fpu_asm.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-
-
-.data
-#ifdef __ELF__
-	.align 4,0
-#else
-	.align 2,0
-#endif
-accum_0:
-	.long	0
-accum_1:
-	.long	0
-
-
-.text
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-
-.globl _C_LABEL(reg_u_mul)
-_C_LABEL(reg_u_mul):
-	pushl	%ebp
-	movl	%esp,%ebp
-	pushl	%esi
-	pushl	%edi
-	pushl	%ebx
-
-	movl	PARAM1,%esi
-	movl	PARAM2,%edi
-
-#ifdef PARANOID
-	testl	$0x80000000,SIGH(%esi)
-	jz	L_bugged
-	testl	$0x80000000,SIGH(%edi)
-	jz	L_bugged
-#endif /* PARANOID */
-
-#ifdef DENORM_OPERAND
-	movl	EXP(%esi),%eax
-	cmpl	EXP_UNDER,%eax
-	jg	xOp1_not_denorm
-
-	call	_C_LABEL(denormal_operand)
-	orl	%eax,%eax
-	jnz	FPU_Arith_exit
-
-xOp1_not_denorm:
-	movl	EXP(%edi),%eax
-	cmpl	EXP_UNDER,%eax
-	jg	xOp2_not_denorm
-
-	call	_C_LABEL(denormal_operand)
-	orl	%eax,%eax
-	jnz	FPU_Arith_exit
-
-xOp2_not_denorm:
-#endif /* DENORM_OPERAND */
-
-	xorl	%ecx,%ecx
-	xorl	%ebx,%ebx
-
-	movl	SIGL(%esi),%eax
-	mull	SIGL(%edi)
-	movl	%eax,accum_0
-	movl	%edx,accum_1
-
-	movl	SIGL(%esi),%eax
-	mull	SIGH(%edi)
-	addl	%eax,accum_1
-	adcl	%edx,%ebx
-/*	adcl	$0,%ecx		*//* overflow here is not possible */
-
-	movl	SIGH(%esi),%eax
-	mull	SIGL(%edi)
-	addl	%eax,accum_1
-	adcl	%edx,%ebx
-	adcl	$0,%ecx
-
-	movl	SIGH(%esi),%eax
-	mull	SIGH(%edi)
-	addl	%eax,%ebx
-	adcl	%edx,%ecx
-
-	movl	EXP(%esi),%eax	/* Compute the exponent */
-	addl	EXP(%edi),%eax
-	subl	EXP_BIAS-1,%eax
-/*  Have now finished with the sources */
-	movl	PARAM3,%edi	/* Point to the destination */
-	movl	%eax,EXP(%edi)
-
-/*  Now make sure that the result is normalized */
-	testl	$0x80000000,%ecx
-	jnz	LResult_Normalised
-
-	/* Normalize by shifting left one bit */
-	shll	$1,accum_0
-	rcll	$1,accum_1
-	rcll	$1,%ebx
-	rcll	$1,%ecx
-	decl	EXP(%edi)
-
-LResult_Normalised:
-	movl	accum_0,%eax
-	movl	accum_1,%edx
-	orl	%eax,%eax
-	jz	L_extent_zero
-
-	orl	$1,%edx
-
-L_extent_zero:
-	movl	%ecx,%eax
-	jmp	FPU_round
-
-
-#ifdef PARANOID
-L_bugged:
-	pushl	EX_INTERNAL|0x205
-	call	EXCEPTION
-	pop	%ebx
-	jmp	L_exit
-
-L_exit:
-	popl	%ebx
-	popl	%edi
-	popl	%esi
-	leave
-	ret
-#endif /* PARANOID */
-
diff --git a/sys/gnu/arch/i386/fpemul/reg_u_sub.s b/sys/gnu/arch/i386/fpemul/reg_u_sub.s
deleted file mode 100644
index 1f8c8470b0e..00000000000
--- a/sys/gnu/arch/i386/fpemul/reg_u_sub.s
+++ /dev/null
@@ -1,368 +0,0 @@
-	.file	"reg_u_sub.S"
-/*	$OpenBSD: reg_u_sub.s,v 1.3 2004/01/13 18:08:48 espie Exp $	*/
-/*
- *  reg_u_sub.S
- *
- * Core floating point subtraction routine.
- *
- * Call from C as:
- *   void reg_u_sub(FPU_REG *arg1, FPU_REG *arg2, FPU_REG *answ,
- *                                                int control_w)
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: reg_u_sub.s,v 1.3 1994/06/10 07:44:59 rich Exp $
- *
- */
-
-/*
- |    Kernel subtraction routine reg_u_sub(reg *arg1, reg *arg2, reg *answ).
- |    Takes two valid reg f.p. numbers (TW_Valid), which are
- |    treated as unsigned numbers,
- |    and returns their difference as a TW_Valid or TW_Zero f.p.
- |    number.
- |    The first number (arg1) must be the larger.
- |    The returned number is normalized.
- |    Basic checks are performed if PARANOID is defined.
- */
-
-#include <machine/asm.h>
-
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/fpu_asm.h>
-#include <gnu/arch/i386/fpemul/control_w.h>
-
-.text
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-.globl _C_LABEL(reg_u_sub)
-_C_LABEL(reg_u_sub):
-	pushl	%ebp
-	movl	%esp,%ebp
-	pushl	%esi
-	pushl	%edi
-	pushl	%ebx
-
-	movl	PARAM1,%esi	/* source 1 */
-	movl	PARAM2,%edi	/* source 2 */
-
-#ifdef DENORM_OPERAND
-	cmpl	EXP_UNDER,EXP(%esi)
-	jg	xOp1_not_denorm
-
-	call	_C_LABEL(denormal_operand)
-	orl	%eax,%eax
-	jnz	FPU_Arith_exit
-
-xOp1_not_denorm:
-	cmpl	EXP_UNDER,EXP(%edi)
-	jg	xOp2_not_denorm
-
-	call	_C_LABEL(denormal_operand)
-	orl	%eax,%eax
-	jnz	FPU_Arith_exit
-
-xOp2_not_denorm:
-#endif /* DENORM_OPERAND */
-
-/*	xorl	%ecx,%ecx */
-	movl	EXP(%esi),%ecx
-	subl	EXP(%edi),%ecx	/* exp1 - exp2 */
-
-#ifdef PARANOID
-	/* source 2 is always smaller than source 1 */
-/*	jc	L_bugged */
-	js	L_bugged_1
-
-	testl	$0x80000000,SIGH(%edi)	/* The args are assumed to be be normalized */
-	je	L_bugged_2
-
-	testl	$0x80000000,SIGH(%esi)
-	je	L_bugged_2
-#endif /* PARANOID */
-
-/*--------------------------------------+
- |	Form a register holding the     |
- |	smaller number                  |
- +--------------------------------------*/
-	movl	SIGH(%edi),%eax	/* register ms word */
-	movl	SIGL(%edi),%ebx	/* register ls word */
-
-	movl	PARAM3,%edi	/* destination */
-	movl	EXP(%esi),%edx
-	movl	%edx,EXP(%edi)	/* Copy exponent to destination */
-	movb	SIGN(%esi),%dl
-	movb	%dl,SIGN(%edi)	/* Copy the sign from the first arg */
-
-	xorl	%edx,%edx	/* register extension */
-
-/*--------------------------------------+
- |	Shift the temporary register	|
- |      right the required number of	|
- |	places.				|
- +--------------------------------------*/
-L_shift_r:
-	cmpl	$32,%ecx		/* shrd only works for 0..31 bits */
-	jnc	L_more_than_31
-
-/* less than 32 bits */
-	shrd	%cl,%ebx,%edx
-	shrd	%cl,%eax,%ebx
-	shr	%cl,%eax
-	jmp	L_shift_done
-
-L_more_than_31:
-	cmpl	$64,%ecx
-	jnc	L_more_than_63
-
-	subb	$32,%cl
-	jz	L_exactly_32
-
-	shrd	%cl,%eax,%edx
-	shr	%cl,%eax
-	orl	%ebx,%ebx
-	jz	L_more_31_no_low	/* none of the lowest bits is set */
-
-	orl	$1,%edx			/* record the fact in the extension */
-
-L_more_31_no_low:
-	movl	%eax,%ebx
-	xorl	%eax,%eax
-	jmp	L_shift_done
-
-L_exactly_32:
-	movl	%ebx,%edx
-	movl	%eax,%ebx
-	xorl	%eax,%eax
-	jmp	L_shift_done
-
-L_more_than_63:
-	cmpw	$65,%cx
-	jnc	L_more_than_64
-
-	/* Shift right by 64 bits */
-	movl	%eax,%edx
-	orl	%ebx,%ebx
-	jz	L_more_63_no_low
-
-	orl	$1,%edx
-	jmp	L_more_63_no_low
-
-L_more_than_64:
-	jne	L_more_than_65
-
-	/* Shift right by 65 bits */
-	/* Carry is clear if we get here */
-	movl	%eax,%edx
-	rcrl	%edx
-	jnc	L_shift_65_nc
-
-	orl	$1,%edx
-	jmp	L_more_63_no_low
-
-L_shift_65_nc:
-	orl	%ebx,%ebx
-	jz	L_more_63_no_low
-
-	orl	$1,%edx
-	jmp	L_more_63_no_low
-
-L_more_than_65:
-	movl	$1,%edx		/* The shifted nr always at least one '1' */
-
-L_more_63_no_low:
-	xorl	%ebx,%ebx
-	xorl	%eax,%eax
-
-L_shift_done:
-L_subtr:
-/*------------------------------+
- |	Do the subtraction	|
- +------------------------------*/
-	xorl	%ecx,%ecx
-	subl	%edx,%ecx
-	movl	%ecx,%edx
-	movl	SIGL(%esi),%ecx
-	sbbl	%ebx,%ecx
-	movl	%ecx,%ebx
-	movl	SIGH(%esi),%ecx
-	sbbl	%eax,%ecx
-	movl	%ecx,%eax
-
-#ifdef PARANOID
-	/* We can never get a borrow */
-	jc	L_bugged
-#endif /* PARANOID */
-
-/*--------------------------------------+
- |	Normalize the result		|
- +--------------------------------------*/
-	testl	$0x80000000,%eax
-	jnz	L_round		/* no shifting needed */
-
-	orl	%eax,%eax
-	jnz	L_shift_1	/* shift left 1 - 31 bits */
-
-	orl	%ebx,%ebx
-	jnz	L_shift_32	/* shift left 32 - 63 bits */
-
-/*	 A rare case, the only one which is non-zero if we got here
-//         is:           1000000 .... 0000
-//                      -0111111 .... 1111 1
-//                       -------------------- 
-//                       0000000 .... 0000 1  */
-
-	cmpl	$0x80000000,%edx
-	jnz	L_must_be_zero
-
-	/* Shift left 64 bits */
-	subl	$64,EXP(%edi)
-	movl	%edx,%eax
-	jmp	L_store
-
-L_must_be_zero:
-#ifdef PARANOID
-	orl	%edx,%edx
-	jnz	L_bugged_3
-#endif /* PARANOID */
-
-	/* The result is zero */
-	movb	TW_Zero,TAG(%edi)
-	movl	$0,EXP(%edi)		/* exponent */
-	movl	$0,SIGL(%edi)
-	movl	$0,SIGH(%edi)
-	jmp	L_exit		/* Does not underflow */
-
-L_shift_32:
-	movl	%ebx,%eax
-	movl	%edx,%ebx
-	movl	$0,%edx
-	subl	$32,EXP(%edi)	/* Can get underflow here */
-
-/* We need to shift left by 1 - 31 bits */
-L_shift_1:
-	bsrl	%eax,%ecx	/* get the required shift in %ecx */
-	subl	$31,%ecx
-	negl	%ecx
-	shld	%cl,%ebx,%eax
-	shld	%cl,%edx,%ebx
-	shl	%cl,%edx
-	subl	%ecx,EXP(%edi)	/* Can get underflow here */
-
-L_round:
-	jmp	FPU_round	/* Round the result */
-
-
-#ifdef PARANOID
-L_bugged_1:
-	pushl	EX_INTERNAL|0x206
-	call	EXCEPTION
-	pop	%ebx
-	jmp	L_exit
-
-L_bugged_2:
-	pushl	EX_INTERNAL|0x209
-	call	EXCEPTION
-	pop	%ebx
-	jmp	L_exit
-
-L_bugged_3:
-	pushl	EX_INTERNAL|0x210
-	call	EXCEPTION
-	pop	%ebx
-	jmp	L_exit
-
-L_bugged_4:
-	pushl	EX_INTERNAL|0x211
-	call	EXCEPTION
-	pop	%ebx
-	jmp	L_exit
-
-L_bugged:
-	pushl	EX_INTERNAL|0x212
-	call	EXCEPTION
-	pop	%ebx
-	jmp	L_exit
-#endif /* PARANOID */
-
-
-L_store:
-/*------------------------------+
- |	Store the result	|
- +------------------------------*/
-	movl	%eax,SIGH(%edi)
-	movl	%ebx,SIGL(%edi)
-
-	movb	TW_Valid,TAG(%edi)		/* Set the tags to TW_Valid */
-
-	cmpl	EXP_UNDER,EXP(%edi)
-	jle	L_underflow
-
-L_exit:
-	popl	%ebx
-	popl	%edi
-	popl	%esi
-	leave
-	ret
-
-
-L_underflow:
-	push	%edi
-	call	_C_LABEL(arith_underflow)
-	pop	%ebx
-	jmp	L_exit
-
diff --git a/sys/gnu/arch/i386/fpemul/status_w.h b/sys/gnu/arch/i386/fpemul/status_w.h
deleted file mode 100644
index d921a05807b..00000000000
--- a/sys/gnu/arch/i386/fpemul/status_w.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/*	$OpenBSD: status_w.h,v 1.1 1996/08/27 10:33:03 downsj Exp $	*/
-/*
- *  status_w.h
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *    $FreeBSD: status_w.h,v 1.3 1994/06/10 07:45:01 rich Exp $
- *
- */
-
-
-#ifndef _STATUS_H_
-#define _STATUS_H_
-
-
-#ifdef _LOCORE
-#define	Const__(x)	$/**/x
-#else
-#define	Const__(x)	x
-#endif
-
-#define SW_Backward    	Const__(0x8000)	/* backward compatibility */
-#define SW_C3		Const__(0x4000)	/* condition bit 3 */
-#define SW_Top		Const__(0x3800)	/* top of stack */
-#define SW_Top_Shift 	Const__(11)	/* shift for top of stack bits */
-#define SW_C2		Const__(0x0400)	/* condition bit 2 */
-#define SW_C1		Const__(0x0200)	/* condition bit 1 */
-#define SW_C0		Const__(0x0100)	/* condition bit 0 */
-#define SW_Summary     	Const__(0x0080)	/* exception summary */
-#define SW_Stack_Fault	Const__(0x0040)	/* stack fault */
-#define SW_Precision   	Const__(0x0020)	/* loss of precision */
-#define SW_Underflow   	Const__(0x0010)	/* underflow */
-#define SW_Overflow    	Const__(0x0008)	/* overflow */
-#define SW_Zero_Div    	Const__(0x0004)	/* divide by zero */
-#define SW_Denorm_Op   	Const__(0x0002)	/* denormalized operand */
-#define SW_Invalid     	Const__(0x0001)	/* invalid operation */
-
-#define SW_Exc_Mask     Const__(0x27f)	/* Status word exception bit mask */
-
-#ifndef _LOCORE
-
-#define COMP_A_gt_B	1
-#define COMP_A_eq_B	2
-#define COMP_A_lt_B	3
-#define COMP_No_Comp	4
-#define COMP_Denormal   0x20
-#define COMP_NaN	0x40
-#define COMP_SNaN	0x80
-
-#define setcc(cc) ({ \
-  status_word &= ~(SW_C0|SW_C1|SW_C2|SW_C3); \
-  status_word |= (cc) & (SW_C0|SW_C1|SW_C2|SW_C3); })
-
-#endif				/* _LOCORE */
-
-#endif				/* _STATUS_H_ */
diff --git a/sys/gnu/arch/i386/fpemul/version.h b/sys/gnu/arch/i386/fpemul/version.h
deleted file mode 100644
index be412e78d33..00000000000
--- a/sys/gnu/arch/i386/fpemul/version.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*	$OpenBSD: version.h,v 1.1 1996/08/27 10:33:03 downsj Exp $	*/
-/*
- *  version.h
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *    $FreeBSD: version.h,v 1.3 1994/06/10 07:45:02 rich Exp $
- *
- */
-
-#define FPU_VERSION "wm-FPU-emu version BETA 1.4"
diff --git a/sys/gnu/arch/i386/fpemul/wm_shrx.s b/sys/gnu/arch/i386/fpemul/wm_shrx.s
deleted file mode 100644
index 06094cc1af1..00000000000
--- a/sys/gnu/arch/i386/fpemul/wm_shrx.s
+++ /dev/null
@@ -1,268 +0,0 @@
-	.file	"wm_shrx.S"
-/*	$OpenBSD: wm_shrx.s,v 1.2 2002/10/12 07:12:59 pvalchev Exp $	*/
-/*
- *  wm_shrx.S
- *
- * 64 bit right shift functions
- *
- * Call from C as:
- *   unsigned shrx(void *arg1, unsigned arg2)
- * and
- *   unsigned shrxs(void *arg1, unsigned arg2)
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: wm_shrx.s,v 1.3 1994/06/10 07:45:03 rich Exp $
- *
- */
-
-
-#include <machine/asm.h>
-
-#include <gnu/arch/i386/fpemul/fpu_asm.h>
-
-.text
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-
-/*---------------------------------------------------------------------------+
- |   unsigned shrx(void *arg1, unsigned arg2)                                |
- |                                                                           |
- |   Extended shift right function.                                          |
- |   Fastest for small shifts.                                               |
- |   Shifts the 64 bit quantity pointed to by the first arg (arg1)           |
- |   right by the number of bits specified by the second arg (arg2).         |
- |   Forms a 96 bit quantity from the 64 bit arg and eax:                    |
- |                [  64 bit arg ][ eax ]                                     |
- |            shift right  --------->                                        |
- |   The eax register is initialized to 0 before the shifting.               |
- |   Results returned in the 64 bit arg and eax.                             |
- +---------------------------------------------------------------------------*/
-
-	.globl	_C_LABEL(shrx)
-
-_C_LABEL(shrx):
-	push	%ebp
-	movl	%esp,%ebp
-	pushl	%esi
-	movl	PARAM2,%ecx
-	movl	PARAM1,%esi
-	cmpl	$32,%ecx	/* shrd only works for 0..31 bits */
-	jnc	L_more_than_31
-
-/* less than 32 bits */
-	pushl	%ebx
-	movl	(%esi),%ebx	/* lsl */
-	movl	4(%esi),%edx	/* msl */
-	xorl	%eax,%eax	/* extension */
-	shrd	%cl,%ebx,%eax
-	shrd	%cl,%edx,%ebx
-	shr	%cl,%edx
-	movl	%ebx,(%esi)
-	movl	%edx,4(%esi)
-	popl	%ebx
-	popl	%esi
-	leave
-	ret
-
-L_more_than_31:
-	cmpl	$64,%ecx
-	jnc	L_more_than_63
-
-	subb	$32,%cl
-	movl	(%esi),%eax	/* lsl */
-	movl	4(%esi),%edx	/* msl */
-	shrd	%cl,%edx,%eax
-	shr	%cl,%edx
-	movl	%edx,(%esi)
-	movl	$0,4(%esi)
-	popl	%esi
-	leave
-	ret
-
-L_more_than_63:
-	cmpl	$96,%ecx
-	jnc	L_more_than_95
-
-	subb	$64,%cl
-	movl	4(%esi),%eax	/* msl */
-	shr	%cl,%eax
-	xorl	%edx,%edx
-	movl	%edx,(%esi)
-	movl	%edx,4(%esi)
-	popl	%esi
-	leave
-	ret
-
-L_more_than_95:
-	xorl	%eax,%eax
-	movl	%eax,(%esi)
-	movl	%eax,4(%esi)
-	popl	%esi
-	leave
-	ret
-
-
-/*---------------------------------------------------------------------------+
- |   unsigned shrxs(void *arg1, unsigned arg2)                               |
- |                                                                           |
- |   Extended shift right function (optimized for small floating point       |
- |   integers).                                                              |
- |   Shifts the 64 bit quantity pointed to by the first arg (arg1)           |
- |   right by the number of bits specified by the second arg (arg2).         |
- |   Forms a 96 bit quantity from the 64 bit arg and eax:                    |
- |                [  64 bit arg ][ eax ]                                     |
- |            shift right  --------->                                        |
- |   The eax register is initialized to 0 before the shifting.               |
- |   The lower 8 bits of eax are lost and replaced by a flag which is        |
- |   set (to 0x01) if any bit, apart from the first one, is set in the       |
- |   part which has been shifted out of the arg.                             |
- |   Results returned in the 64 bit arg and eax.                             |
- +---------------------------------------------------------------------------*/
-	.globl	_C_LABEL(shrxs)
-_C_LABEL(shrxs):
-	push	%ebp
-	movl	%esp,%ebp
-	pushl	%esi
-	pushl	%ebx
-	movl	PARAM2,%ecx
-	movl	PARAM1,%esi
-	cmpl	$64,%ecx	/* shrd only works for 0..31 bits */
-	jnc	Ls_more_than_63
-
-	cmpl	$32,%ecx	/* shrd only works for 0..31 bits */
-	jc	Ls_less_than_32
-
-/* We got here without jumps by assuming that the most common requirement
-   is for small integers */
-/* Shift by [32..63] bits */
-	subb	$32,%cl
-	movl	(%esi),%eax	/* lsl */
-	movl	4(%esi),%edx	/* msl */
-	xorl	%ebx,%ebx
-	shrd	%cl,%eax,%ebx
-	shrd	%cl,%edx,%eax
-	shr	%cl,%edx
-	orl	%ebx,%ebx		/* test these 32 bits */
-	setne	%bl
-	test	$0x7fffffff,%eax	/* and 31 bits here */
-	setne	%bh
-	orw	%bx,%bx			/* Any of the 63 bit set ? */
-	setne	%al
-	movl	%edx,(%esi)
-	movl	$0,4(%esi)
-	popl	%ebx
-	popl	%esi
-	leave
-	ret
-
-/* Shift by [0..31] bits */
-Ls_less_than_32:
-	movl	(%esi),%ebx	/* lsl */
-	movl	4(%esi),%edx	/* msl */
-	xorl	%eax,%eax	/* extension */
-	shrd	%cl,%ebx,%eax
-	shrd	%cl,%edx,%ebx
-	shr	%cl,%edx
-	test	$0x7fffffff,%eax	/* only need to look at eax here */
-	setne	%al
-	movl	%ebx,(%esi)
-	movl	%edx,4(%esi)
-	popl	%ebx
-	popl	%esi
-	leave
-	ret
-
-/* Shift by [64..95] bits */
-Ls_more_than_63:
-	cmpl	$96,%ecx
-	jnc	Ls_more_than_95
-
-	subb	$64,%cl
-	movl	(%esi),%ebx	/* lsl */
-	movl	4(%esi),%eax	/* msl */
-	xorl	%edx,%edx	/* extension */
-	shrd	%cl,%ebx,%edx
-	shrd	%cl,%eax,%ebx
-	shr	%cl,%eax
-	orl	%ebx,%edx
-	setne	%bl
-	test	$0x7fffffff,%eax	/* only need to look at eax here */
-	setne	%bh
-	orw	%bx,%bx
-	setne	%al
-	xorl	%edx,%edx
-	movl	%edx,(%esi)	/* set to zero */
-	movl	%edx,4(%esi)	/* set to zero */
-	popl	%ebx
-	popl	%esi
-	leave
-	ret
-
-Ls_more_than_95:
-/* Shift by [96..inf) bits */
-	xorl	%eax,%eax
-	movl	(%esi),%ebx
-	orl	4(%esi),%ebx
-	setne	%al
-	xorl	%ebx,%ebx
-	movl	%ebx,(%esi)
-	movl	%ebx,4(%esi)
-	popl	%ebx
-	popl	%esi
-	leave
-	ret
diff --git a/sys/gnu/arch/i386/fpemul/wm_sqrt.s b/sys/gnu/arch/i386/fpemul/wm_sqrt.s
deleted file mode 100644
index e8c6d2bef5c..00000000000
--- a/sys/gnu/arch/i386/fpemul/wm_sqrt.s
+++ /dev/null
@@ -1,507 +0,0 @@
-	.file	"wm_sqrt.S"
-/*	$OpenBSD: wm_sqrt.s,v 1.4 2004/01/13 18:08:48 espie Exp $	*/
-/*
- *  wm_sqrt.S
- *
- * Fixed point arithmetic square root evaluation.
- *
- * Call from C as:
- *   void wm_sqrt(FPU_REG *n, unsigned int control_word)
- *
- *
- * Copyright (C) 1992,1993,1994
- *                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,
- *                       Australia.  E-mail   billm@vaxc.cc.monash.edu.au
- * All rights reserved.
- *
- * This copyright notice covers the redistribution and use of the
- * FPU emulator developed by W. Metzenthen. It covers only its use
- * in the 386BSD, FreeBSD and NetBSD operating systems. Any other
- * use is not permitted under this copyright.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must include information specifying
- *    that source code for the emulator is freely available and include
- *    either:
- *      a) an offer to provide the source code for a nominal distribution
- *         fee, or
- *      b) list at least two alternative methods whereby the source
- *         can be obtained, e.g. a publically accessible bulletin board
- *         and an anonymous ftp site from which the software can be
- *         downloaded.
- * 3. All advertising materials specifically mentioning features or use of
- *    this emulator must acknowledge that it was developed by W. Metzenthen.
- * 4. The name of W. Metzenthen may not be used to endorse or promote
- *    products derived from this software without specific prior written
- *    permission.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- * The purpose of this copyright, based upon the Berkeley copyright, is to
- * ensure that the covered software remains freely available to everyone.
- *
- * The software (with necessary differences) is also available, but under
- * the terms of the GNU copyleft, for the Linux operating system and for
- * the djgpp ms-dos extender.
- *
- * W. Metzenthen   June 1994.
- *
- *
- *     $FreeBSD: wm_sqrt.s,v 1.3 1994/06/10 07:45:04 rich Exp $
- *
- */
-
-
-/*---------------------------------------------------------------------------+
- |  wm_sqrt(FPU_REG *n, unsigned int control_word)                           |
- |    returns the square root of n in n.                                     |
- |                                                                           |
- |  Use Newton's method to compute the square root of a number, which must   |
- |  be in the range  [1.0 .. 4.0),  to 64 bits accuracy.                     |
- |  Does not check the sign or tag of the argument.                          |
- |  Sets the exponent, but not the sign or tag of the result.                |
- |                                                                           |
- |  The guess is kept in %esi:%edi                                           |
- +---------------------------------------------------------------------------*/
-
-#include <machine/asm.h>
-
-#include <gnu/arch/i386/fpemul/exception.h>
-#include <gnu/arch/i386/fpemul/fpu_asm.h>
-
-
-.data
-/*
-	Local storage:
- */
-#ifdef __ELF__
-	.align 16,0
-#else
-	.align 4,0
-#endif
-accum_3:
-	.long	0		/* ms word */
-accum_2:
-	.long	0
-accum_1:
-	.long	0
-accum_0:
-	.long	0
-
-/* The de-normalised argument:
-//                  sq_2                  sq_1              sq_0
-//        b b b b b b b ... b b b   b b b .... b b b   b 0 0 0 ... 0
-//           ^ binary point here */
-fsqrt_arg_2:
-	.long	0		/* ms word */
-fsqrt_arg_1:
-	.long	0
-fsqrt_arg_0:
-	.long	0		/* ls word, at most the ms bit is set */
-
-.text
-#ifdef __ELF__
-	.align 4,144
-#else
-	.align 2,144
-#endif
-
-.globl _C_LABEL(wm_sqrt)
-
-_C_LABEL(wm_sqrt):
-	pushl	%ebp
-	movl	%esp,%ebp
-	pushl	%esi
-	pushl	%edi
-	pushl	%ebx
-
-	movl	PARAM1,%esi
-
-	movl	SIGH(%esi),%eax
-	movl	SIGL(%esi),%ecx
-	xorl	%edx,%edx
-
-/* We use a rough linear estimate for the first guess.. */
-
-	cmpl	EXP_BIAS,EXP(%esi)
-	jnz	sqrt_arg_ge_2
-
-	shrl	$1,%eax			/* arg is in the range  [1.0 .. 2.0) */
-	rcrl	$1,%ecx
-	rcrl	$1,%edx
-
-sqrt_arg_ge_2:
-/* From here on, n is never accessed directly again until it is
-// replaced by the answer. */
-
-	movl	%eax,fsqrt_arg_2		/* ms word of n */
-	movl	%ecx,fsqrt_arg_1
-	movl	%edx,fsqrt_arg_0
-
-/* Make a linear first estimate */
-	shrl	$1,%eax
-	addl	$0x40000000,%eax
-	movl	$0xaaaaaaaa,%ecx
-	mull	%ecx
-	shll	%edx			/* max result was 7fff... */
-	testl	$0x80000000,%edx	/* but min was 3fff... */
-	jnz	sqrt_prelim_no_adjust
-
-	movl	$0x80000000,%edx	/* round up */
-
-sqrt_prelim_no_adjust:
-	movl	%edx,%esi	/* Our first guess */
-
-/* We have now computed (approx)   (2 + x) / 3, which forms the basis
-   for a few iterations of Newton's method */
-
-	movl	fsqrt_arg_2,%ecx	/* ms word */
-
-/* From our initial estimate, three iterations are enough to get us
-// to 30 bits or so. This will then allow two iterations at better
-// precision to complete the process.
-
-// Compute  (g + n/g)/2  at each iteration (g is the guess). */
-	shrl	%ecx		/* Doing this first will prevent a divide */
-				/* overflow later. */
-
-	movl	%ecx,%edx	/* msw of the arg / 2 */
-	divl	%esi		/* current estimate */
-	shrl	%esi		/* divide by 2 */
-	addl	%eax,%esi	/* the new estimate */
-
-	movl	%ecx,%edx
-	divl	%esi
-	shrl	%esi
-	addl	%eax,%esi
-
-	movl	%ecx,%edx
-	divl	%esi
-	shrl	%esi
-	addl	%eax,%esi
-
-/* Now that an estimate accurate to about 30 bits has been obtained (in %esi),
-// we improve it to 60 bits or so.
-
-// The strategy from now on is to compute new estimates from
-//      guess := guess + (n - guess^2) / (2 * guess) */
-
-/* First, find the square of the guess */
-	movl	%esi,%eax
-	mull	%esi
-/* guess^2 now in %edx:%eax */
-
-	movl	fsqrt_arg_1,%ecx
-	subl	%ecx,%eax
-	movl	fsqrt_arg_2,%ecx	/* ms word of normalized n */
-	sbbl	%ecx,%edx
-	jnc	sqrt_stage_2_positive
-/* subtraction gives a negative result
-// negate the result before division */
-	notl	%edx
-	notl	%eax
-	addl	$1,%eax
-	adcl	$0,%edx
-
-	divl	%esi
-	movl	%eax,%ecx
-
-	movl	%edx,%eax
-	divl	%esi
-	jmp	sqrt_stage_2_finish
-
-sqrt_stage_2_positive:
-	divl	%esi
-	movl	%eax,%ecx
-
-	movl	%edx,%eax
-	divl	%esi
-
-	notl	%ecx
-	notl	%eax
-	addl	$1,%eax
-	adcl	$0,%ecx
-
-sqrt_stage_2_finish:
-	sarl	$1,%ecx		/* divide by 2 */
-	rcrl	$1,%eax
-
-	/* Form the new estimate in %esi:%edi */
-	movl	%eax,%edi
-	addl	%ecx,%esi
-
-	jnz	sqrt_stage_2_done	/* result should be [1..2) */
-
-#ifdef PARANOID
-/* It should be possible to get here only if the arg is ffff....ffff*/
-	cmp	$0xffffffff,fsqrt_arg_1
-	jnz	sqrt_stage_2_error
-#endif /* PARANOID */
-
-/* The best rounded result.*/
-	xorl	%eax,%eax
-	decl	%eax
-	movl	%eax,%edi
-	movl	%eax,%esi
-	movl	$0x7fffffff,%eax
-	jmp	sqrt_round_result
-
-#ifdef PARANOID
-sqrt_stage_2_error:
-	pushl	EX_INTERNAL|0x213
-	call	EXCEPTION
-#endif /* PARANOID */
-
-sqrt_stage_2_done:
-
-/* Now the square root has been computed to better than 60 bits */
-
-/* Find the square of the guess*/
-	movl	%edi,%eax		/* ls word of guess*/
-	mull	%edi
-	movl	%edx,accum_1
-
-	movl	%esi,%eax
-	mull	%esi
-	movl	%edx,accum_3
-	movl	%eax,accum_2
-
-	movl	%edi,%eax
-	mull	%esi
-	addl	%eax,accum_1
-	adcl	%edx,accum_2
-	adcl	$0,accum_3
-
-/*	movl	%esi,%eax*/
-/*	mull	%edi*/
-	addl	%eax,accum_1
-	adcl	%edx,accum_2
-	adcl	$0,accum_3
-
-/* guess^2 now in accum_3:accum_2:accum_1*/
-
-	movl	fsqrt_arg_0,%eax		/* get normalized n*/
-	subl	%eax,accum_1
-	movl	fsqrt_arg_1,%eax
-	sbbl	%eax,accum_2
-	movl	fsqrt_arg_2,%eax		/* ms word of normalized n*/
-	sbbl	%eax,accum_3
-	jnc	sqrt_stage_3_positive
-
-/* subtraction gives a negative result*/
-/* negate the result before division */
-	notl	accum_1
-	notl	accum_2
-	notl	accum_3
-	addl	$1,accum_1
-	adcl	$0,accum_2
-
-#ifdef PARANOID
-	adcl	$0,accum_3	/* This must be zero */
-	jz	sqrt_stage_3_no_error
-
-sqrt_stage_3_error:
-	pushl	EX_INTERNAL|0x207
-	call	EXCEPTION
-
-sqrt_stage_3_no_error:
-#endif /* PARANOID */
-
-	movl	accum_2,%edx
-	movl	accum_1,%eax
-	divl	%esi
-	movl	%eax,%ecx
-
-	movl	%edx,%eax
-	divl	%esi
-
-	sarl	$1,%ecx		/* divide by 2*/
-	rcrl	$1,%eax
-
-	/* prepare to round the result*/
-
-	addl	%ecx,%edi
-	adcl	$0,%esi
-
-	jmp	sqrt_stage_3_finished
-
-sqrt_stage_3_positive:
-	movl	accum_2,%edx
-	movl	accum_1,%eax
-	divl	%esi
-	movl	%eax,%ecx
-
-	movl	%edx,%eax
-	divl	%esi
-
-	sarl	$1,%ecx		/* divide by 2*/
-	rcrl	$1,%eax
-
-	/* prepare to round the result*/
-
-	notl	%eax		/* Negate the correction term*/
-	notl	%ecx
-	addl	$1,%eax
-	adcl	$0,%ecx		/* carry here ==> correction == 0*/
-	adcl	$0xffffffff,%esi
-
-	addl	%ecx,%edi
-	adcl	$0,%esi
-
-sqrt_stage_3_finished:
-
-/* The result in %esi:%edi:%esi should be good to about 90 bits here,
-// and the rounding information here does not have sufficient accuracy
-// in a few rare cases. */
-	cmpl	$0xffffffe0,%eax
-	ja	sqrt_near_exact_x
-
-	cmpl	$0x00000020,%eax
-	jb	sqrt_near_exact
-
-	cmpl	$0x7fffffe0,%eax
-	jb	sqrt_round_result
-
-	cmpl	$0x80000020,%eax
-	jb	sqrt_get_more_precision
-
-sqrt_round_result:
-/* Set up for rounding operations*/
-	movl	%eax,%edx
-	movl	%esi,%eax
-	movl	%edi,%ebx
-	movl	PARAM1,%edi
-	movl	EXP_BIAS,EXP(%edi)	/* Result is in  [1.0 .. 2.0)*/
-	movl	PARAM2,%ecx
-	jmp	FPU_round_sqrt
-
-
-sqrt_near_exact_x:
-/* First, the estimate must be rounded up.*/
-	addl	$1,%edi
-	adcl	$0,%esi
-
-sqrt_near_exact:
-/* This is an easy case because x^1/2 is monotonic.
-// We need just find the square of our estimate, compare it
-// with the argument, and deduce whether our estimate is
-// above, below, or exact. We use the fact that the estimate
-// is known to be accurate to about 90 bits. */
-	movl	%edi,%eax		/* ls word of guess*/
-	mull	%edi
-	movl	%edx,%ebx		/* 2nd ls word of square*/
-	movl	%eax,%ecx		/* ls word of square*/
-
-	movl	%edi,%eax
-	mull	%esi
-	addl	%eax,%ebx
-	addl	%eax,%ebx
-
-#ifdef PARANOID
-	cmp	$0xffffffb0,%ebx
-	jb	sqrt_near_exact_ok
-
-	cmp	$0x00000050,%ebx
-	ja	sqrt_near_exact_ok
-
-	pushl	EX_INTERNAL|0x214
-	call	EXCEPTION
-
-sqrt_near_exact_ok:
-#endif /* PARANOID */
-
-	or	%ebx,%ebx
-	js	sqrt_near_exact_small
-
-	jnz	sqrt_near_exact_large
-
-	or	%ebx,%edx
-	jnz	sqrt_near_exact_large
-
-/* Our estimate is exactly the right answer*/
-	xorl	%eax,%eax
-	jmp	sqrt_round_result
-
-sqrt_near_exact_small:
-/* Our estimate is too small*/
-	movl	$0x000000ff,%eax
-	jmp	sqrt_round_result
-	
-sqrt_near_exact_large:
-/* Our estimate is too large, we need to decrement it*/
-	subl	$1,%edi
-	sbbl	$0,%esi
-	movl	$0xffffff00,%eax
-	jmp	sqrt_round_result
-
-
-sqrt_get_more_precision:
-/* This case is almost the same as the above, except we start*/
-/* with an extra bit of precision in the estimate.*/
-	stc			/* The extra bit.*/
-	rcll	$1,%edi		/* Shift the estimate left one bit*/
-	rcll	$1,%esi
-
-	movl	%edi,%eax		/* ls word of guess*/
-	mull	%edi
-	movl	%edx,%ebx		/* 2nd ls word of square*/
-	movl	%eax,%ecx		/* ls word of square*/
-
-	movl	%edi,%eax
-	mull	%esi
-	addl	%eax,%ebx
-	addl	%eax,%ebx
-
-/* Put our estimate back to its original value*/
-	stc			/* The ms bit.*/
-	rcrl	$1,%esi		/* Shift the estimate left one bit*/
-	rcrl	$1,%edi
-
-#ifdef PARANOID
-	cmp	$0xffffff60,%ebx
-	jb	sqrt_more_prec_ok
-
-	cmp	$0x000000a0,%ebx
-	ja	sqrt_more_prec_ok
-
-	pushl	EX_INTERNAL|0x215
-	call	EXCEPTION
-
-sqrt_more_prec_ok:
-#endif /* PARANOID */
-
-	or	%ebx,%ebx
-	js	sqrt_more_prec_small
-
-	jnz	sqrt_more_prec_large
-
-	or	%ebx,%ecx
-	jnz	sqrt_more_prec_large
-
-/* Our estimate is exactly the right answer*/
-	movl	$0x80000000,%eax
-	jmp	sqrt_round_result
-
-sqrt_more_prec_small:
-/* Our estimate is too small*/
-	movl	$0x800000ff,%eax
-	jmp	sqrt_round_result
-	
-sqrt_more_prec_large:
-/* Our estimate is too large*/
-	movl	$0x7fffff00,%eax
-	jmp	sqrt_round_result