1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
/* $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_ */
|
