initial import of pica stuff (a few theo modifications already in here)

40 files changed, 3595 insertions, 0 deletions

diff --git a/sys/arch/pica/include/ansi.h b/sys/arch/pica/include/ansi.h
new file mode 100644
index 00000000000..1b329b0d39c
--- /dev/null
+++ b/sys/arch/pica/include/ansi.h
@@ -0,0 +1,74 @@
+/*	$NetBSD: ansi.h,v 1.5 1994/10/26 21:09:33 cgd Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	@(#)ansi.h	8.2 (Berkeley) 1/4/94
+ */
+
+#ifndef	_ANSI_H_
+#define	_ANSI_H_
+
+/*
+ * Types which are fundamental to the implementation and may appear in
+ * more than one standard header are defined here.  Standard headers
+ * then use:
+ *	#ifdef	_BSD_SIZE_T_
+ *	typedef	_BSD_SIZE_T_ size_t;
+ *	#undef	_BSD_SIZE_T_
+ *	#endif
+ */
+#define	_BSD_CLOCK_T_	unsigned long		/* clock() */
+#define	_BSD_PTRDIFF_T_	int			/* ptr1 - ptr2 */
+#define	_BSD_SIZE_T_	unsigned int		/* sizeof() */
+#define	_BSD_SSIZE_T_	int			/* byte count or error */
+#define	_BSD_TIME_T_	long			/* time() */
+#define	_BSD_VA_LIST_	char *			/* va_list */
+
+/*
+ * Runes (wchar_t) is declared to be an ``int'' instead of the more natural
+ * ``unsigned long'' or ``long''.  Two things are happening here.  It is not
+ * unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
+ * it looks like 10646 will be a 31 bit standard.  This means that if your
+ * ints cannot hold 32 bits, you will be in trouble.  The reason an int was
+ * chosen over a long is that the is*() and to*() routines take ints (says
+ * ANSI C), but they use _RUNE_T_ instead of int.  By changing it here, you
+ * lose a bit of ANSI conformance, but your programs will still work.
+ *    
+ * Note that _WCHAR_T_ and _RUNE_T_ must be of the same type.  When wchar_t
+ * and rune_t are typedef'd, _WCHAR_T_ will be undef'd, but _RUNE_T remains
+ * defined for ctype.h.
+ */
+#define	_BSD_WCHAR_T_	int			/* wchar_t */
+#define	_BSD_RUNE_T_	int			/* rune_t */
+
+#endif	/* _ANSI_H_ */
diff --git a/sys/arch/pica/include/autoconf.h b/sys/arch/pica/include/autoconf.h
new file mode 100644
index 00000000000..42538ef9c36
--- /dev/null
+++ b/sys/arch/pica/include/autoconf.h
@@ -0,0 +1,74 @@
+/*	$NetBSD: autoconf.h,v 1.1 1995/02/13 23:07:31 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1994, 1995 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ * 
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+/*
+ * Machine-dependent structures of autoconfiguration
+ */
+
+struct confargs;
+
+typedef int (*intr_handler_t) __P((void *));
+
+struct abus {
+	struct	device *ab_dv;		/* back-pointer to device */
+	int	ab_type;		/* bus type (see below) */
+	void	(*ab_intr_establish)	/* bus's set-handler function */
+		    __P((struct confargs *, intr_handler_t, void *));
+	void	(*ab_intr_disestablish)	/* bus's unset-handler function */
+		    __P((struct confargs *));
+	caddr_t	(*ab_cvtaddr)		/* convert slot/offset to address */
+		    __P((struct confargs *));
+	int	(*ab_matchname)		/* see if name matches driver */
+		    __P((struct confargs *, char *));
+};
+
+#define	BUS_MAIN	1		/* mainbus */
+#define	BUS_PICA	2		/* PICA Bus */
+#define	BUS_ASIC	3		/* IOCTL ASIC; under TurboChannel */
+#define	BUS_TCDS	4		/* TCDS ASIC; under TurboChannel */
+
+#define	BUS_INTR_ESTABLISH(ca, handler, val)				\
+	    (*(ca)->ca_bus->ab_intr_establish)((ca), (handler), (val))
+#define	BUS_INTR_DISESTABLISH(ca)					\
+	    (*(ca)->ca_bus->ab_intr_establish)(ca)
+#define	BUS_CVTADDR(ca)							\
+	    (*(ca)->ca_bus->ab_cvtaddr)(ca)
+#define	BUS_MATCHNAME(ca, name)						\
+	    (*(ca)->ca_bus->ab_matchname)((ca), (name))
+
+struct confargs {
+	char	*ca_name;		/* Device name. */
+	int	ca_slot;		/* Device slot. */
+	int	ca_offset;		/* Offset into slot. */
+	struct	abus *ca_bus;		/* bus device resides on. */
+};
+
+void	set_clockintr __P((void (*)(struct clockframe *)));
+void	set_iointr __P((void (*)(void *, int)));
+int	badaddr			__P((void *, u_int64_t));
diff --git a/sys/arch/pica/include/bsd-aout.h b/sys/arch/pica/include/bsd-aout.h
new file mode 100644
index 00000000000..5d496ff1d09
--- /dev/null
+++ b/sys/arch/pica/include/bsd-aout.h
@@ -0,0 +1,33 @@
+/* bsd-aout.h
+
+   4.4bsd a.out format, for backwards compatibility...  */
+
+#ifndef __MACHINE_BSD_AOUT_H__
+#define __MACHINE_BSD_AOUT_H__
+#define BSD_OMAGIC  0407            /* old impure format */
+#define BSD_NMAGIC  0410            /* read-only text */
+#define BSD_ZMAGIC  0413            /* demand load format */
+
+struct bsd_aouthdr {
+#if BYTE_ORDER == BIG_ENDIAN
+  u_short a_mid;          /* machine ID */
+  u_short a_magic;        /* magic number */
+#else
+  u_short a_magic;        /* magic number */
+  u_short a_mid;          /* machine ID */
+#endif
+ 
+  u_long  a_text;         /* text segment size */
+  u_long  a_data;         /* initialized data size */
+  u_long  a_bss;          /* uninitialized data size */
+  u_long  a_syms;         /* symbol table size */
+  u_long  a_entry;        /* entry point */
+  u_long  a_trsize;       /* text relocation size */
+  u_long  a_drsize;       /* data relocation size */
+};
+
+#ifndef _KERNEL
+#define _AOUT_INCLUDE_
+#include <nlist.h>
+#endif /* _KERNEL */
+#endif /* __MACHINE_BSD_AOUT_H__ */
diff --git a/sys/arch/pica/include/cdefs.h b/sys/arch/pica/include/cdefs.h
new file mode 100644
index 00000000000..1b4a6cc51ee
--- /dev/null
+++ b/sys/arch/pica/include/cdefs.h
@@ -0,0 +1,38 @@
+/*	$NetBSD: cdefs.h,v 1.3 1995/05/03 06:04:54 mellon Exp $	*/
+
+/*
+ * Copyright (c) 1995 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ * 
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+#ifndef _MACHINE_CDEFS_H_
+#define	_MACHINE_CDEFS_H_
+
+#define	_C_LABEL(x)	_STRING(x)
+
+#define	__indr_references(sym,msg)	/* nothing */
+#define	__warn_references(sym,msg)	/* nothing */
+
+#endif /* !_MACHINE_CDEFS_H_ */
diff --git a/sys/arch/pica/include/cpu.h b/sys/arch/pica/include/cpu.h
new file mode 100644
index 00000000000..6f46be6068b
--- /dev/null
+++ b/sys/arch/pica/include/cpu.h
@@ -0,0 +1,184 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell and Rick Macklem.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	from: @(#)cpu.h	8.4 (Berkeley) 1/4/94
+ *      $Id: cpu.h,v 1.1 1995/10/18 10:39:11 deraadt Exp $
+ */
+
+#ifndef _CPU_H_
+#define _CPU_H_
+
+#include <machine/machConst.h>
+
+/*
+ * Exported definitions unique to pica/mips cpu support.
+ */
+
+/*
+ * definitions of cpu-dependent requirements
+ * referenced in generic code
+ */
+#define	COPY_SIGCODE		/* copy sigcode above user stack in exec */
+
+#define	cpu_wait(p)		/* nothing */
+#define cpu_set_init_frame(p, fp) /* nothing */
+#define cpu_swapout(p)		panic("cpu_swapout: can't get here");
+
+/*
+ * Arguments to hardclock and gatherstats encapsulate the previous
+ * machine state in an opaque clockframe.
+ */
+struct clockframe {
+	int	pc;	/* program counter at time of interrupt */
+	int	sr;	/* status register at time of interrupt */
+};
+
+#define	CLKF_USERMODE(framep)	((framep)->sr & MACH_SR_KSU_USER)
+#define	CLKF_BASEPRI(framep)	\
+	((~(framep)->sr & (MACH_INT_MASK | MACH_SR_INT_ENAB)) == 0)
+#define	CLKF_PC(framep)		((framep)->pc)
+#define	CLKF_INTR(framep)	(0)
+
+/*
+ * Preempt the current process if in interrupt from user mode,
+ * or after the current trap/syscall if in system mode.
+ */
+#define	need_resched()	{ want_resched = 1; aston(); }
+
+/*
+ * Give a profiling tick to the current process when the user profiling
+ * buffer pages are invalid.  On the PICA, request an ast to send us
+ * through trap, marking the proc as needing a profiling tick.
+ */
+#define	need_proftick(p)	{ (p)->p_flag |= P_OWEUPC; aston(); }
+
+/*
+ * Notify the current process (p) that it has a signal pending,
+ * process as soon as possible.
+ */
+#define	signotify(p)	aston()
+
+#define aston()		(astpending = 1)
+
+int	astpending;	/* need to trap before returning to user mode */
+int	want_resched;	/* resched() was called */
+
+/*
+ * CPU identification, from PRID register.
+ */
+union cpuprid {
+	int	cpuprid;
+	struct {
+#if BYTE_ORDER == BIG_ENDIAN
+		u_int	pad1:16;	/* reserved */
+		u_int	cp_imp:8;	/* implementation identifier */
+		u_int	cp_majrev:4;	/* major revision identifier */
+		u_int	cp_minrev:4;	/* minor revision identifier */
+#else
+		u_int	cp_minrev:4;	/* minor revision identifier */
+		u_int	cp_majrev:4;	/* major revision identifier */
+		u_int	cp_imp:8;	/* implementation identifier */
+		u_int	pad1:16;	/* reserved */
+#endif
+	} cpu;
+};
+
+/*
+ * CTL_MACHDEP definitions.
+ */
+#define	CPU_CONSDEV		1	/* dev_t: console terminal device */
+#define	CPU_MAXID		2	/* number of valid machdep ids */
+
+#define CTL_MACHDEP_NAMES { \
+	{ 0, 0 }, \
+	{ "console_device", CTLTYPE_STRUCT }, \
+}
+
+/*
+ * MIPS CPU types (cp_imp).
+ */
+#define	MIPS_R2000	0x01	/* MIPS R2000 CPU		ISA I   */
+#define	MIPS_R3000	0x02	/* MIPS R3000 CPU		ISA I   */
+#define	MIPS_R6000	0x03	/* MIPS R6000 CPU		ISA II	*/
+#define	MIPS_R4000	0x04	/* MIPS R4000/4400 CPU		ISA III	*/
+#define MIPS_R3LSI	0x05	/* LSI Logic R3000 derivate	ISA I	*/
+#define	MIPS_R6000A	0x06	/* MIPS R6000A CPU		ISA II	*/
+#define	MIPS_R3IDT	0x07	/* IDT R3000 derivate		ISA I	*/
+#define	MIPS_R10000	0x09	/* MIPS R10000/T5 CPU		ISA IV  */
+#define	MIPS_R4200	0x0a	/* MIPS R4200 CPU (ICE)		ISA III */
+#define MIPS_UNKC1	0x0b	/* unnanounced product cpu	ISA III */
+#define MIPS_UNKC2	0x0c	/* unnanounced product cpu	ISA III */
+#define	MIPS_R8000	0x10	/* MIPS R8000 Blackbird/TFP	ISA IV  */
+#define	MIPS_R4600	0x20	/* QED R4600 Orion		ISA III */
+#define	MIPS_R3SONY	0x21	/* Sony R3000 based CPU		ISA I   */
+#define	MIPS_R3TOSH	0x22	/* Toshiba R3000 based CPU	ISA I	*/
+#define	MIPS_R3NKK	0x23	/* NKK R3000 based CPU		ISA I   */
+
+/*
+ * MIPS FPU types
+ */
+#define	MIPS_SOFT	0x00	/* Software emulation		ISA I   */
+#define	MIPS_R2360	0x01	/* MIPS R2360 FPC		ISA I   */
+#define	MIPS_R2010	0x02	/* MIPS R2010 FPC		ISA I   */
+#define	MIPS_R3010	0x03	/* MIPS R3010 FPC		ISA I   */
+#define	MIPS_R6010	0x04	/* MIPS R6010 FPC		ISA II  */
+#define	MIPS_R4010	0x05	/* MIPS R4000/R4400 FPC		ISA II  */
+#define MIPS_R31LSI	0x06	/* LSI Logic derivate		ISA I	*/
+#define	MIPS_R10010	0x09	/* MIPS R10000/T5 FPU		ISA IV  */
+#define	MIPS_R4210	0x0a	/* MIPS R4200 FPC (ICE)		ISA III */
+#define MIPS_UNKF1	0x0b	/* unnanounced product cpu	ISA III */
+#define	MIPS_R8000	0x10	/* MIPS R8000 Blackbird/TFP	ISA IV  */
+#define	MIPS_R4600	0x20	/* QED R4600 Orion		ISA III */
+#define	MIPS_R3SONY	0x21	/* Sony R3000 based FPU		ISA I   */
+#define	MIPS_R3TOSH	0x22	/* Toshiba R3000 based FPU	ISA I	*/
+#define	MIPS_R3NKK	0x23	/* NKK R3000 based FPU		ISA I   */
+
+#ifdef _KERNEL
+union	cpuprid cpu_id;
+union	cpuprid fpu_id;
+u_int	machPrimaryDataCacheSize;
+u_int	machPrimaryInstCacheSize;
+u_int	machPrimaryDataCacheLSize;
+u_int	machPrimaryInstCacheLSize;
+u_int	machCacheAliasMask;
+extern	struct intr_tab intr_tab[];
+#endif
+
+/*
+ * Enable realtime clock (always enabled).
+ */
+#define	enablertclock()
+
+#endif /* _CPU_H_ */
diff --git a/sys/arch/pica/include/disklabel.h b/sys/arch/pica/include/disklabel.h
new file mode 100644
index 00000000000..f84cf756a1c
--- /dev/null
+++ b/sys/arch/pica/include/disklabel.h
@@ -0,0 +1,80 @@
+/*	$NetBSD: disklabel.h,v 1.2 1995/01/18 06:37:55 mellon Exp $	*/
+
+/*
+ * Copyright (c) 1994 Christopher G. Demetriou
+ * All rights reserved.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Christopher G. Demetriou.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
+ */
+
+#ifndef _MACHINE_DISKLABEL_H_
+#define _MACHINE_DISKLABEL_H_
+
+#define	LABELSECTOR	0			/* sector containing label */
+#define	LABELOFFSET	64			/* offset of label in sector */
+#define	MAXPARTITIONS	8			/* number of partitions */
+#define	RAW_PART	2			/* raw partition: xx?c */
+
+/* DOS partition table -- used when the system is booted from a dos
+ * partition. This is the case on NT systems.
+ */
+#define	DOSBBSECTOR	0		/* DOS boot block relative sector # */
+#define	DOSPARTOFF	446
+#define	NDOSPART	4
+
+struct dos_partition {
+	unsigned char	dp_flag;	/* bootstrap flags */
+	unsigned char	dp_shd;		/* starting head */
+	unsigned char	dp_ssect;	/* starting sector */
+	unsigned char	dp_scyl;	/* starting cylinder */
+	unsigned char	dp_typ;		/* partition type (see below) */
+	unsigned char	dp_ehd;		/* end head */
+	unsigned char	dp_esect;	/* end sector */
+	unsigned char	dp_ecyl;	/* end cylinder */
+	unsigned long	dp_start;	/* absolute starting sector number */
+	unsigned long	dp_size;	/* partition size in sectors */
+} dos_partitions[NDOSPART];
+
+/* Known DOS partition types. */
+#define	DOSPTYP_386BSD	0xa5		/* 386BSD partition type */
+#define DOSPTYP_NETBSD	DOSPTYP_386BSD	/* NetBSD partition type (XXX) */
+
+#include <sys/dkbad.h>
+struct cpu_disklabel {
+	struct dos_partition dosparts[NDOSPART];
+	struct dkbad bad;
+};
+
+/* Isolate the relevant bits to get sector and cylinder. */
+#define	DPSECT(s)	((s) & 0x3f)
+#define	DPCYL(c, s)	((c) + (((s) & 0xc0) << 2))
+
+#ifdef _KERNEL
+struct disklabel;
+int	bounds_check_with_label __P((struct buf *, struct disklabel *, int));
+#endif
+
+#endif /* _MACHINE_DISKLABEL_H_ */
diff --git a/sys/arch/pica/include/display.h b/sys/arch/pica/include/display.h
new file mode 100644
index 00000000000..60406dce661
--- /dev/null
+++ b/sys/arch/pica/include/display.h
@@ -0,0 +1,47 @@
+/*
+ * IBM PC display definitions
+ *
+ *	$Id: display.h,v 1.1 1995/10/18 10:39:15 deraadt Exp $
+ */
+
+/* Color attributes for foreground text */
+
+#define	FG_BLACK		   0
+#define	FG_BLUE			   1
+#define	FG_GREEN		   2
+#define	FG_CYAN			   3
+#define	FG_RED			   4
+#define	FG_MAGENTA		   5
+#define	FG_BROWN		   6
+#define	FG_LIGHTGREY		   7
+#define	FG_DARKGREY		   8
+#define	FG_LIGHTBLUE		   9
+#define	FG_LIGHTGREEN		  10
+#define	FG_LIGHTCYAN		  11
+#define	FG_LIGHTRED		  12
+#define	FG_LIGHTMAGENTA		  13
+#define	FG_YELLOW		  14
+#define	FG_WHITE		  15
+#define	FG_BLINK		0x80
+#define	FG_MASK			0x8f
+
+/* Color attributes for text background */
+
+#define	BG_BLACK		0x00
+#define	BG_BLUE			0x10
+#define	BG_GREEN		0x20
+#define	BG_CYAN			0x30
+#define	BG_RED			0x40
+#define	BG_MAGENTA		0x50
+#define	BG_BROWN		0x60
+#define	BG_LIGHTGREY		0x70
+#define	BG_MASK			0x70
+
+/* Monochrome attributes for foreground text */
+
+#define	FG_UNDERLINE		0x01
+#define	FG_INTENSE		0x08
+
+/* Monochrome attributes for text background */
+
+#define	BG_INTENSE		0x10
diff --git a/sys/arch/pica/include/ecoff.h b/sys/arch/pica/include/ecoff.h
new file mode 100644
index 00000000000..c0f30e17077
--- /dev/null
+++ b/sys/arch/pica/include/ecoff.h
@@ -0,0 +1,46 @@
+/*	$NetBSD: ecoff.h,v 1.4 1995/06/16 02:07:33 mellon Exp $	*/
+
+/*
+ * Copyright (c) 1994 Adam Glass
+ * All rights reserved.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Adam Glass.
+ * 4. The name of the Author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Adam Glass ``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 Adam Glass 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.
+ */
+
+#define ECOFF_LDPGSZ 4096
+
+#define ECOFF_PAD
+
+#define ECOFF_MACHDEP \
+        u_long ea_gprmask; \
+        u_long ea_cprmask[4]; \
+        u_long ea_gp_value
+
+#define ECOFF_MAGIC_MIPSEL 0x0162
+#define ECOFF_BADMAG(ex) ((ex)->ef_magic != ECOFF_MAGIC_MIPSEL)
+
+#define ECOFF_SEGMENT_ALIGNMENT(eap) ((eap)->ea_vstamp < 23 ? 8 : 16)
diff --git a/sys/arch/pica/include/elf.h b/sys/arch/pica/include/elf.h
new file mode 100644
index 00000000000..5cb8b03421d
--- /dev/null
+++ b/sys/arch/pica/include/elf.h
@@ -0,0 +1,137 @@
+/*	$NetBSD: elf.h,v 1.2 1995/03/28 18:19:14 jtc Exp $	*/
+
+/*
+ * Copyright (c) 1994 Ted Lemon
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ */
+
+#ifndef __MACHINE_ELF_H__
+#define __MACHINE_ELF_H__
+
+/* ELF executable header... */
+struct ehdr {
+  char elf_magic [4];		/* Elf magic number... */
+  unsigned long magic [3];	/* Magic number... */
+  unsigned short type;		/* Object file type... */
+  unsigned short machine;	/* Machine ID... */
+  unsigned long version;	/* File format version... */
+  unsigned long entry;		/* Entry point... */
+  unsigned long phoff;		/* Program header table offset... */
+  unsigned long shoff;		/* Section header table offset... */
+  unsigned long flags;		/* Processor-specific flags... */
+  unsigned short ehsize;	/* Elf header size in bytes... */
+  unsigned short phsize;	/* Program header size... */
+  unsigned short phcount;	/* Program header count... */
+  unsigned short shsize;	/* Section header size... */
+  unsigned short shcount;	/* Section header count... */
+  unsigned short shstrndx;	/* Section header string table index... */
+};
+
+/* Program header... */
+struct phdr {
+  unsigned long type;		/* Segment type... */
+  unsigned long offset;		/* File offset... */
+  unsigned long vaddr;		/* Virtual address... */
+  unsigned long paddr;		/* Physical address... */
+  unsigned long filesz;		/* Size of segment in file... */
+  unsigned long memsz;		/* Size of segment in memory... */
+  unsigned long flags;		/* Segment flags... */
+  unsigned long align;		/* Alighment, file and memory... */
+};
+
+/* Section header... */
+struct shdr {
+  unsigned long name;		/* Offset into string table of section name */
+  unsigned long type;		/* Type of section... */
+  unsigned long flags;		/* Section flags... */
+  unsigned long addr;		/* Section virtual address at execution... */
+  unsigned long offset;		/* Section file offset... */
+  unsigned long size;		/* Section size... */
+  unsigned long link;		/* Link to another section... */
+  unsigned long info;		/* Additional section info... */
+  unsigned long align;		/* Section alignment... */
+  unsigned long esize;		/* Entry size if section holds table... */
+};
+
+/* Symbol table entry... */
+struct sym {
+  unsigned long name;		/* Index into strtab of symbol name. */
+  unsigned long value;		/* Section offset, virt addr or common align. */
+  unsigned long size;		/* Size of object referenced. */
+  unsigned type    : 4;		/* Symbol type (e.g., function, data)... */
+  unsigned binding : 4;		/* Symbol binding (e.g., global, local)... */
+  unsigned char other;		/* Unused. */
+  unsigned short shndx;		/* Section containing symbol. */
+};
+
+/* Values for program header type field */
+
+#define PT_NULL         0               /* Program header table entry unused */
+#define PT_LOAD         1               /* Loadable program segment */
+#define PT_DYNAMIC      2               /* Dynamic linking information */
+#define PT_INTERP       3               /* Program interpreter */
+#define PT_NOTE         4               /* Auxiliary information */
+#define PT_SHLIB        5               /* Reserved, unspecified semantics */
+#define PT_PHDR         6               /* Entry for header table itself */
+#define PT_LOPROC       0x70000000      /* Processor-specific */
+#define PT_HIPROC       0x7FFFFFFF      /* Processor-specific */
+#define PT_MIPS_REGINFO	PT_LOPROC	/* Mips reginfo section... */
+
+/* Program segment permissions, in program header flags field */
+
+#define PF_X            (1 << 0)        /* Segment is executable */
+#define PF_W            (1 << 1)        /* Segment is writable */
+#define PF_R            (1 << 2)        /* Segment is readable */
+#define PF_MASKPROC     0xF0000000      /* Processor-specific reserved bits */
+
+/* Reserved section indices... */
+#define SHN_UNDEF	0
+#define SHN_ABS		0xfff1
+#define SHN_COMMON	0xfff2
+#define SHN_MIPS_ACOMMON 0xfff0
+
+/* Symbol bindings... */
+#define STB_LOCAL	0
+#define STB_GLOBAL	1
+#define STB_WEAK	2
+
+/* Symbol types... */
+#define STT_NOTYPE	0
+#define	STT_OBJECT	1
+#define STT_FUNC	2
+#define	STT_SECTION	3
+#define STT_FILE	4
+
+#define ELF_HDR_SIZE	(sizeof (struct ehdr))
+#ifdef _KERNEL
+int     pmax_elf_makecmds __P((struct proc *, struct exec_package *));
+#endif /* _KERNEL */
+#endif /* __MACHINE_ELF_H__ */
diff --git a/sys/arch/pica/include/endian.h b/sys/arch/pica/include/endian.h
new file mode 100644
index 00000000000..3aeb69fc3ca
--- /dev/null
+++ b/sys/arch/pica/include/endian.h
@@ -0,0 +1,94 @@
+/*	$NetBSD: endian.h,v 1.4 1994/10/26 21:09:38 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1987, 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	@(#)endian.h	8.1 (Berkeley) 6/11/93
+ */
+
+#ifndef _ENDIAN_H_
+#define	_ENDIAN_H_
+
+/*
+ * Define _NOQUAD if the compiler does NOT support 64-bit integers.
+ */
+/* #define _NOQUAD */
+
+/*
+ * Define the order of 32-bit words in 64-bit words.
+ */
+#define _QUAD_HIGHWORD 1
+#define _QUAD_LOWWORD 0
+
+#ifndef _POSIX_SOURCE
+/*
+ * Definitions for byte order, according to byte significance from low
+ * address to high.
+ */
+#define	LITTLE_ENDIAN	1234	/* LSB first: i386, vax */
+#define	BIG_ENDIAN	4321	/* MSB first: 68000, ibm, net */
+#define	PDP_ENDIAN	3412	/* LSB first in word, MSW first in long */
+
+#define	BYTE_ORDER	LITTLE_ENDIAN
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+unsigned long	htonl __P((unsigned long));
+unsigned short	htons __P((unsigned short));
+unsigned long	ntohl __P((unsigned long));
+unsigned short	ntohs __P((unsigned short));
+__END_DECLS
+
+/*
+ * Macros for network/external number representation conversion.
+ */
+#if BYTE_ORDER == BIG_ENDIAN && !defined(lint)
+#define	ntohl(x)	(x)
+#define	ntohs(x)	(x)
+#define	htonl(x)	(x)
+#define	htons(x)	(x)
+
+#define	NTOHL(x)	(x)
+#define	NTOHS(x)	(x)
+#define	HTONL(x)	(x)
+#define	HTONS(x)	(x)
+
+#else
+
+#define	NTOHL(x)	(x) = ntohl((u_long)x)
+#define	NTOHS(x)	(x) = ntohs((u_short)x)
+#define	HTONL(x)	(x) = htonl((u_long)x)
+#define	HTONS(x)	(x) = htons((u_short)x)
+#endif
+#endif /* ! _POSIX_SOURCE */
+#endif /* !_ENDIAN_H_ */
diff --git a/sys/arch/pica/include/exec.h b/sys/arch/pica/include/exec.h
new file mode 100644
index 00000000000..87dde64bf8e
--- /dev/null
+++ b/sys/arch/pica/include/exec.h
@@ -0,0 +1,40 @@
+/*	$NetBSD: exec.h,v 1.5 1994/10/26 21:09:39 cgd Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	@(#)exec.h	8.1 (Berkeley) 6/10/93
+ */
+
+#define	__LDPGSZ	4096
+
+#include <machine/reloc.h>
diff --git a/sys/arch/pica/include/float.h b/sys/arch/pica/include/float.h
new file mode 100644
index 00000000000..2c172c75763
--- /dev/null
+++ b/sys/arch/pica/include/float.h
@@ -0,0 +1,80 @@
+/*	$NetBSD: float.h,v 1.7 1995/06/20 20:45:50 jtc Exp $	*/
+
+/*
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	@(#)float.h	8.1 (Berkeley) 6/10/93
+ */
+
+#ifndef _PMAX_FLOAT_H_
+#define _PMAX_FLOAT_H_
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+extern int __flt_rounds();
+__END_DECLS
+
+#define FLT_RADIX	2		/* b */
+#define FLT_ROUNDS	__flt_rounds()
+
+#define FLT_MANT_DIG	24		/* p */
+#define FLT_EPSILON	1.19209290E-07F	/* b**(1-p) */
+#define FLT_DIG		6		/* floor((p-1)*log10(b))+(b == 10) */
+#define FLT_MIN_EXP	-125		/* emin */
+#define FLT_MIN		1.17549435E-38F	/* b**(emin-1) */
+#define FLT_MIN_10_EXP	-37		/* ceil(log10(b**(emin-1))) */
+#define FLT_MAX_EXP	128		/* emax */
+#define FLT_MAX		3.40282347E+38F	/* (1-b**(-p))*b**emax */
+#define FLT_MAX_10_EXP	38		/* floor(log10((1-b**(-p))*b**emax)) */
+
+#define DBL_MANT_DIG	53
+#define DBL_EPSILON	2.2204460492503131E-16
+#define DBL_DIG		15
+#define DBL_MIN_EXP	-1021
+#define DBL_MIN		2.225073858507201E-308
+#define DBL_MIN_10_EXP	-307
+#define DBL_MAX_EXP	1024
+#define DBL_MAX		1.797693134862316E+308
+#define DBL_MAX_10_EXP	308
+
+#define LDBL_MANT_DIG	DBL_MANT_DIG
+#define LDBL_EPSILON	DBL_EPSILON
+#define LDBL_DIG	DBL_DIG
+#define LDBL_MIN_EXP	DBL_MIN_EXP
+#define LDBL_MIN	DBL_MIN
+#define LDBL_MIN_10_EXP	DBL_MIN_10_EXP
+#define LDBL_MAX_EXP	DBL_MAX_EXP
+#define LDBL_MAX	DBL_MAX
+#define LDBL_MAX_10_EXP	DBL_MAX_10_EXP
+
+#endif	/* _PMAX_FLOAT_H_ */
diff --git a/sys/arch/pica/include/ieeefp.h b/sys/arch/pica/include/ieeefp.h
new file mode 100644
index 00000000000..65ea3fed16c
--- /dev/null
+++ b/sys/arch/pica/include/ieeefp.h
@@ -0,0 +1,23 @@
+/* 
+ * Written by J.T. Conklin, Apr 11, 1995
+ * Public domain.
+ */
+
+#ifndef _MIPS_IEEEFP_H_
+#define _MIPS_IEEEFP_H_
+
+typedef int fp_except;
+#define FP_X_IMP	0x01	/* imprecise (loss of precision) */
+#define FP_X_UFL	0x02	/* underflow exception */
+#define FP_X_OFL	0x04	/* overflow exception */
+#define FP_X_DZ		0x08	/* divide-by-zero exception */
+#define FP_X_INV	0x10	/* invalid operation exception */
+
+typedef enum {
+    FP_RN=0,			/* round to nearest representable number */
+    FP_RZ=1,			/* round to zero (truncate) */
+    FP_RP=2,			/* round toward positive infinity */
+    FP_RM=3			/* round toward negative infinity */
+} fp_rnd;
+
+#endif /* _MIPS_IEEEFP_H_ */
diff --git a/sys/arch/pica/include/kbdreg.h b/sys/arch/pica/include/kbdreg.h
new file mode 100644
index 00000000000..10d0795352d
--- /dev/null
+++ b/sys/arch/pica/include/kbdreg.h
@@ -0,0 +1,52 @@
+/*
+ * Keyboard definitions
+ *
+ *	$Id: kbdreg.h,v 1.1 1995/10/18 10:39:15 deraadt Exp $
+ */
+
+#define	KBSTATP		(PICA_SYS_KBD + 0x61)	/* controller status port (I) */
+#define	 KBS_DIB	0x01	/* data in buffer */
+#define	 KBS_IBF	0x02	/* input buffer low */
+#define	 KBS_WARM	0x04	/* input buffer low */
+#define	 KBS_OCMD	0x08	/* output buffer has command */
+#define	 KBS_NOSEC	0x10	/* security lock not engaged */
+#define	 KBS_TERR	0x20	/* transmission error */
+#define	 KBS_RERR	0x40	/* receive error */
+#define	 KBS_PERR	0x80	/* parity error */
+
+#define	KBCMDP		(PICA_SYS_KBD + 0x61)	/* controller port (O) */
+#define	KBDATAP		(PICA_SYS_KBD + 0x60)	/* data port (I) */
+#define	KBOUTP		(PICA_SYS_KBD + 0x60)	/* data port (O) */
+
+#define	K_RDCMDBYTE	0x20
+#define	K_LDCMDBYTE	0x60
+
+#define	KC8_TRANS	0x40	/* convert to old scan codes */
+#define	KC8_MDISABLE	0x20	/* disable mouse */
+#define	KC8_KDISABLE	0x10	/* disable keyboard */
+#define	KC8_IGNSEC	0x08	/* ignore security lock */
+#define	KC8_CPU		0x04	/* exit from protected mode reset */
+#define	KC8_MENABLE	0x02	/* enable mouse interrupt */
+#define	KC8_KENABLE	0x01	/* enable keyboard interrupt */
+#define	CMDBYTE		(KC8_TRANS|KC8_CPU|KC8_MENABLE|KC8_KENABLE)
+
+/* keyboard commands */
+#define	KBC_RESET	0xFF	/* reset the keyboard */
+#define	KBC_RESEND	0xFE	/* request the keyboard resend the last byte */
+#define	KBC_SETDEFAULT	0xF6	/* resets keyboard to its power-on defaults */
+#define	KBC_DISABLE	0xF5	/* as per KBC_SETDEFAULT, but also disable key scanning */
+#define	KBC_ENABLE	0xF4	/* enable key scanning */
+#define	KBC_TYPEMATIC	0xF3	/* set typematic rate and delay */
+#define	KBC_SETTABLE	0xF0	/* set scancode translation table */
+#define	KBC_MODEIND	0xED	/* set mode indicators (i.e. LEDs) */
+#define	KBC_ECHO	0xEE	/* request an echo from the keyboard */
+
+/* keyboard responses */
+#define	KBR_EXTENDED	0xE0	/* extended key sequence */
+#define	KBR_RESEND	0xFE	/* needs resend of command */
+#define	KBR_ACK		0xFA	/* received a valid command */
+#define	KBR_OVERRUN	0x00	/* flooded */
+#define	KBR_FAILURE	0xFD	/* diagnosic failure */
+#define	KBR_BREAK	0xF0	/* break code prefix - sent on key release */
+#define	KBR_RSTDONE	0xAA	/* reset complete */
+#define	KBR_ECHO	0xEE	/* echo response */
diff --git a/sys/arch/pica/include/kdbparam.h b/sys/arch/pica/include/kdbparam.h
new file mode 100644
index 00000000000..9104c87aa3c
--- /dev/null
+++ b/sys/arch/pica/include/kdbparam.h
@@ -0,0 +1,74 @@
+/*	$NetBSD: kdbparam.h,v 1.4 1994/10/26 21:09:42 cgd Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	@(#)kdbparam.h	8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * Machine dependent definitions for kdb.
+ */
+
+#if BYTE_ORDER == LITTLE_ENDIAN
+#define kdbshorten(w)	((w) & 0xFFFF)
+#define	kdbbyte(w)	((w) & 0xFF)
+#define	kdbitol(a,b)	((long)(((b) << 16) | ((a) & 0xFFFF)))
+#define	kdbbtol(a)	((long)(a))
+#endif
+
+#define LPRMODE		"%R"
+#define OFFMODE		"+%R"
+
+#define	SETBP(ins)	MACH_BREAK_BRKPT
+
+/* return the program counter value modified if we are in a delay slot */
+#define	kdbgetpc(pcb)		(kdbvar[kdbvarchk('t')] < 0 ? \
+	(pcb).pcb_regs[34] + 4 : (pcb).pcb_regs[34])
+#define	kdbishiddenreg(p)	((p) >= &kdbreglist[33])
+#define	kdbisbreak(type)	(((type) & MACH_CR_EXC_CODE) == 0x24)
+
+/* check for address wrap around */
+#define	kdbaddrwrap(addr,newaddr)	(((addr)^(newaddr)) >> 31)
+
+/* declare machine dependent routines defined in kadb.c */
+void	kdbprinttrap __P((unsigned, unsigned));
+void	kdbsetsstep __P((void));
+void	kdbclrsstep __P((void));
+void	kdbreadc __P((char *));
+void	kdbwrite __P((char *, int));
+void	kdbprintins __P((int, long));
+void	kdbstacktrace __P((int));
+char	*kdbmalloc __P((int));
diff --git a/sys/arch/pica/include/limits.h b/sys/arch/pica/include/limits.h
new file mode 100644
index 00000000000..b692e2885c6
--- /dev/null
+++ b/sys/arch/pica/include/limits.h
@@ -0,0 +1,100 @@
+/*	$NetBSD: limits.h,v 1.8 1995/03/28 18:19:16 jtc Exp $	*/
+
+/*
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	@(#)limits.h	8.3 (Berkeley) 1/4/94
+ */
+
+#define	CHAR_BIT	8		/* number of bits in a char */
+#define	MB_LEN_MAX	6		/* Allow 31 bit UTF2 */
+
+#ifdef _KERNEL
+#define	CLK_TCK		100		/* ticks per second */
+#endif
+
+/*
+ * According to ANSI (section 2.2.4.2), the values below must be usable by
+ * #if preprocessing directives.  Additionally, the expression must have the
+ * same type as would an expression that is an object of the corresponding
+ * type converted according to the integral promotions.  The subtraction for
+ * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an
+ * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
+ * These numbers work for pcc as well.  The UINT_MAX and ULONG_MAX values
+ * are written as hex so that GCC will be quiet about large integer constants.
+ */
+#define	SCHAR_MAX	127		/* min value for a signed char */
+#define	SCHAR_MIN	(-128)		/* max value for a signed char */
+
+#define	UCHAR_MAX	255		/* max value for an unsigned char */
+#define	CHAR_MAX	127		/* max value for a char */
+#define	CHAR_MIN	(-128)		/* min value for a char */
+
+#define	USHRT_MAX	65535		/* max value for an unsigned short */
+#define	SHRT_MAX	32767		/* max value for a short */
+#define	SHRT_MIN	(-32768)	/* min value for a short */
+
+#define	UINT_MAX	0xffffffff	/* max value for an unsigned int */
+#define	INT_MAX		2147483647	/* max value for an int */
+#define	INT_MIN		(-2147483647-1)	/* min value for an int */
+
+#define	ULONG_MAX	0xffffffff	/* max value for an unsigned long */
+#define	LONG_MAX	2147483647	/* max value for a long */
+#define	LONG_MIN	(-2147483647-1)	/* min value for a long */
+
+#if !defined(_ANSI_SOURCE)
+#define	SSIZE_MAX	INT_MAX		/* max value for a ssize_t */
+
+#if !defined(_POSIX_SOURCE) && !defined(_XOPEN_SOURCE)
+#define	SIZE_T_MAX	UINT_MAX	/* max value for a size_t */
+
+/* GCC requires that quad constants be written as expressions. */
+#define	UQUAD_MAX	((u_quad_t)0-1)	/* max value for a uquad_t */
+					/* max value for a quad_t */
+#define	QUAD_MAX	((quad_t)(UQUAD_MAX >> 1))
+#define	QUAD_MIN	(-QUAD_MAX-1)	/* min value for a quad_t */
+
+#endif /* !_POSIX_SOURCE && !_XOPEN_SOURCE */
+#endif /* !_ANSI_SOURCE */
+
+#if (!defined(_ANSI_SOURCE)&&!defined(_POSIX_SOURCE)) || defined(_XOPEN_SOURCE)
+#define LONG_BIT	32
+#define WORD_BIT	32
+
+#define DBL_DIG		15
+#define DBL_MAX		1.797693134862316E+308
+#define DBL_MIN		2.225073858507201E-308
+
+#define FLT_DIG		6
+#define FLT_MAX		3.40282347E+38F
+#define FLT_MIN		1.17549435E-38F
+#endif
diff --git a/sys/arch/pica/include/machAsmDefs.h b/sys/arch/pica/include/machAsmDefs.h
new file mode 100644
index 00000000000..dfc42fcff23
--- /dev/null
+++ b/sys/arch/pica/include/machAsmDefs.h
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	from: @(#)machAsmDefs.h	8.1 (Berkeley) 6/10/93
+ *      $Id: machAsmDefs.h,v 1.1 1995/10/18 10:39:12 deraadt Exp $
+ */
+
+/*
+ * machAsmDefs.h --
+ *
+ *	Macros used when writing assembler programs.
+ *
+ *	Copyright (C) 1989 Digital Equipment Corporation.
+ *	Permission to use, copy, modify, and distribute this software and
+ *	its documentation for any purpose and without fee is hereby granted,
+ *	provided that the above copyright notice appears in all copies.
+ *	Digital Equipment Corporation makes no representations about the
+ *	suitability of this software for any purpose.  It is provided "as is"
+ *	without express or implied warranty.
+ *
+ * from: Header: /sprite/src/kernel/mach/ds3100.md/RCS/machAsmDefs.h,
+ *	v 1.2 89/08/15 18:28:24 rab Exp  SPRITE (DECWRL)
+ * $Id: machAsmDefs.h,v 1.1 1995/10/18 10:39:12 deraadt Exp $
+ */
+
+#ifndef _MACHASMDEFS
+#define _MACHASMDEFS
+
+#include <machine/regdef.h>
+
+/*
+ * Define -pg profile entry code.
+ */
+#if defined(GPROF) || defined(PROF)
+#define	MCOUNT	.set noreorder; \
+		.set noat; \
+		move $1,$31; \
+		jal _mcount; \
+		subu sp,sp,8; \
+		.set reorder; \
+		.set at;
+#else
+#define	MCOUNT
+#endif
+
+/*
+ * LEAF(x)
+ *
+ *	Declare a leaf routine.
+ */
+#define LEAF(x) \
+	.globl x; \
+	.ent x, 0; \
+x: ; \
+	.frame sp, 0, ra; \
+	MCOUNT
+
+/*
+ * NLEAF(x)
+ *
+ *	Declare a non-profiled leaf routine.
+ */
+#define NLEAF(x) \
+	.globl x; \
+	.ent x, 0; \
+x: ; \
+	.frame sp, 0, ra
+
+/*
+ * ALEAF -- declare alternate entry to a leaf routine.
+ */
+#define	ALEAF(x)					\
+	.globl	x;					\
+x:
+
+/*
+ * NON_LEAF(x)
+ *
+ *	Declare a non-leaf routine (a routine that makes other C calls).
+ */
+#define NON_LEAF(x, fsize, retpc) \
+	.globl x; \
+	.ent x, 0; \
+x: ; \
+	.frame sp, fsize, retpc; \
+	MCOUNT
+
+/*
+ * NNON_LEAF(x)
+ *
+ *	Declare a non-profiled non-leaf routine
+ *	(a routine that makes other C calls).
+ */
+#define NNON_LEAF(x, fsize, retpc) \
+	.globl x; \
+	.ent x, 0; \
+x: ; \
+	.frame sp, fsize, retpc
+
+/*
+ * END(x)
+ *
+ *	Mark end of a procedure.
+ */
+#define END(x) \
+	.end x
+
+#define STAND_FRAME_SIZE	24
+#define STAND_RA_OFFSET		20
+
+/*
+ * Macros to panic and printf from assembly language.
+ */
+#define PANIC(msg) \
+	la	a0, 9f; \
+	jal	panic; \
+	MSG(msg)
+
+#define	PRINTF(msg) \
+	la	a0, 9f; \
+	jal	printf; \
+	MSG(msg)
+
+#define	MSG(msg) \
+	.rdata; \
+9:	.asciiz	msg; \
+	.text
+
+#define ASMSTR(str) \
+	.asciiz str; \
+	.align	3
+
+#endif /* _MACHASMDEFS */
diff --git a/sys/arch/pica/include/machConst.h b/sys/arch/pica/include/machConst.h
new file mode 100644
index 00000000000..bdbeb576662
--- /dev/null
+++ b/sys/arch/pica/include/machConst.h
@@ -0,0 +1,289 @@
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell and Rick Macklem.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	from: @(#)machConst.h	8.1 (Berkeley) 6/10/93
+ *      $Id: machConst.h,v 1.1 1995/10/18 10:39:12 deraadt Exp $
+ *
+ * machConst.h --
+ *
+ *	Machine dependent constants.
+ *
+ *	Copyright (C) 1989 Digital Equipment Corporation.
+ *	Permission to use, copy, modify, and distribute this software and
+ *	its documentation for any purpose and without fee is hereby granted,
+ *	provided that the above copyright notice appears in all copies.
+ *	Digital Equipment Corporation makes no representations about the
+ *	suitability of this software for any purpose.  It is provided "as is"
+ *	without express or implied warranty.
+ *
+ * from: Header: /sprite/src/kernel/mach/ds3100.md/RCS/machConst.h,
+ *	v 9.2 89/10/21 15:55:22 jhh Exp  SPRITE (DECWRL)
+ * from: Header: /sprite/src/kernel/mach/ds3100.md/RCS/machAddrs.h,
+ *	v 1.2 89/08/15 18:28:21 rab Exp  SPRITE (DECWRL)
+ * from: Header: /sprite/src/kernel/vm/ds3100.md/RCS/vmPmaxConst.h,
+ *	v 9.1 89/09/18 17:33:00 shirriff Exp  SPRITE (DECWRL)
+ * $Id: machConst.h,v 1.1 1995/10/18 10:39:12 deraadt Exp $
+ */
+
+#ifndef _MACHCONST
+#define _MACHCONST
+
+#define MACH_KUSEG_ADDR			0x0
+#define MACH_CACHED_MEMORY_ADDR		0x80000000
+#define MACH_UNCACHED_MEMORY_ADDR	0xa0000000
+#define MACH_KSEG2_ADDR			0xc0000000
+#define MACH_MAX_MEM_ADDR		0xbe000000
+#define	MACH_RESERVED_ADDR		0xbfc80000
+
+#define	MACH_CACHED_TO_PHYS(x)	((unsigned)(x) & 0x1fffffff)
+#define	MACH_PHYS_TO_CACHED(x)	((unsigned)(x) | MACH_CACHED_MEMORY_ADDR)
+#define	MACH_UNCACHED_TO_PHYS(x) ((unsigned)(x) & 0x1fffffff)
+#define	MACH_PHYS_TO_UNCACHED(x) ((unsigned)(x) | MACH_UNCACHED_MEMORY_ADDR)
+#define MACH_VA_TO_CINDEX(x) \
+		((unsigned)(x) & 0xffffff | MACH_CACHED_MEMORY_ADDR)
+
+#define MACH_CODE_START			0x80080000
+
+/*
+ * The bits in the cause register.
+ *
+ *	MACH_CR_BR_DELAY	Exception happened in branch delay slot.
+ *	MACH_CR_COP_ERR		Coprocessor error.
+ *	MACH_CR_IP		Interrupt pending bits defined below.
+ *	MACH_CR_EXC_CODE	The exception type (see exception codes below).
+ */
+#define MACH_CR_BR_DELAY	0x80000000
+#define MACH_CR_COP_ERR		0x30000000
+#define MACH_CR_EXC_CODE	0x0000007C
+#define MACH_CR_IP		0x0000FF00
+#define MACH_CR_EXC_CODE_SHIFT	2
+
+/*
+ * The bits in the status register.  All bits are active when set to 1.
+ */
+#define MACH_SR_COP_USABILITY	0xf0000000
+#define MACH_SR_COP_0_BIT	0x10000000
+#define MACH_SR_COP_1_BIT	0x20000000
+#define MACH_SR_RP		0x08000000
+#define MACH_SR_FR_32		0x04000000
+#define MACH_SR_RE		0x02000000
+#define MACH_SR_BOOT_EXC_VEC	0x00400000
+#define MACH_SR_TLB_SHUTDOWN	0x00200000
+#define MACH_SR_SOFT_RESET	0x00100000
+#define MACH_SR_DIAG_CH		0x00040000
+#define MACH_SR_DIAG_CE		0x00020000
+#define MACH_SR_DIAG_PE		0x00010000
+#define MACH_SR_KX		0x00000080
+#define MACH_SR_SX		0x00000040
+#define MACH_SR_UX		0x00000020
+#define MACH_SR_KSU_MASK	0x00000018
+#define MACH_SR_KSU_USER	0x00000010
+#define MACH_SR_KSU_SUPER	0x00000008
+#define MACH_SR_KSU_KERNEL	0x00000000
+#define MACH_SR_ERL		0x00000004
+#define MACH_SR_EXL		0x00000002
+#define MACH_SR_INT_ENAB	0x00000001
+/*#define MACH_SR_INT_MASK	0x0000ff00*/
+
+/*
+ * The interrupt masks.
+ * If a bit in the mask is 1 then the interrupt is enabled (or pending).
+ */
+#define MACH_INT_MASK		0x7f00
+#define MACH_INT_MASK_5		0x8000	/* Not used (on chip timer) */
+#define MACH_INT_MASK_4		0x4000
+#define MACH_INT_MASK_3		0x2000
+#define MACH_INT_MASK_2		0x1000
+#define MACH_INT_MASK_1		0x0800
+#define MACH_INT_MASK_0		0x0400
+#define MACH_HARD_INT_MASK	0x7c00
+#define MACH_SOFT_INT_MASK_1	0x0200
+#define MACH_SOFT_INT_MASK_0	0x0100
+
+/*
+ * The bits in the context register.
+ */
+#define MACH_CNTXT_PTE_BASE	0xFF800000
+#define MACH_CNTXT_BAD_VPN2	0x007FFFF0
+
+/*
+ * Location of exception vectors.
+ */
+#define MACH_RESET_EXC_VEC	0xBFC00000
+#define MACH_TLB_MISS_EXC_VEC	0x80000000
+#define MACH_XTLB_MISS_EXC_VEC	0x80000080
+#define MACH_CACHE_ERR_EXC_VEC	0x80000100
+#define MACH_GEN_EXC_VEC	0x80000180
+
+/*
+ * Coprocessor 0 registers:
+ */
+#define MACH_COP_0_TLB_INDEX	$0
+#define MACH_COP_0_TLB_RANDOM	$1
+#define MACH_COP_0_TLB_LO0	$2
+#define MACH_COP_0_TLB_LO1	$3
+#define MACH_COP_0_TLB_CONTEXT	$4
+#define MACH_COP_0_TLB_PG_MASK	$5
+#define MACH_COP_0_TLB_WIRED	$6
+#define MACH_COP_0_BAD_VADDR	$8
+#define MACH_COP_0_TLB_HI	$10
+#define MACH_COP_0_STATUS_REG	$12
+#define MACH_COP_0_CAUSE_REG	$13
+#define MACH_COP_0_EXC_PC	$14
+#define MACH_COP_0_PRID		$15
+#define MACH_COP_0_CONFIG	$16
+#define MACH_COP_0_LLADDR	$17
+#define MACH_COP_0_WATCH_LO	$18
+#define MACH_COP_0_WATCH_HI	$19
+#define MACH_COP_0_TLB_XCONTEXT	$20
+#define MACH_COP_0_ECC		$26
+#define MACH_COP_0_CACHE_ERR	$27
+#define MACH_COP_0_TAG_LO	$28
+#define MACH_COP_0_TAG_HI	$29
+#define MACH_COP_0_ERROR_PC	$30
+
+/*
+ * Values for the code field in a break instruction.
+ */
+#define MACH_BREAK_INSTR	0x0000000d
+#define MACH_BREAK_VAL_MASK	0x03ff0000
+#define MACH_BREAK_VAL_SHIFT	16
+#define MACH_BREAK_KDB_VAL	512
+#define MACH_BREAK_SSTEP_VAL	513
+#define MACH_BREAK_BRKPT_VAL	514
+#define MACH_BREAK_SOVER_VAL	515
+#define MACH_BREAK_KDB		(MACH_BREAK_INSTR | \
+				(MACH_BREAK_KDB_VAL << MACH_BREAK_VAL_SHIFT))
+#define MACH_BREAK_SSTEP	(MACH_BREAK_INSTR | \
+				(MACH_BREAK_SSTEP_VAL << MACH_BREAK_VAL_SHIFT))
+#define MACH_BREAK_BRKPT	(MACH_BREAK_INSTR | \
+				(MACH_BREAK_BRKPT_VAL << MACH_BREAK_VAL_SHIFT))
+#define MACH_BREAK_SOVER	(MACH_BREAK_INSTR | \
+				(MACH_BREAK_SOVER_VAL << MACH_BREAK_VAL_SHIFT))
+
+/*
+ * Mininum and maximum cache sizes.
+ */
+#define MACH_MIN_CACHE_SIZE	(16 * 1024)
+#define MACH_MAX_CACHE_SIZE	(256 * 1024)
+
+/*
+ * The floating point version and status registers.
+ */
+#define	MACH_FPC_ID	$0
+#define	MACH_FPC_CSR	$31
+
+/*
+ * The floating point coprocessor status register bits.
+ */
+#define MACH_FPC_ROUNDING_BITS		0x00000003
+#define MACH_FPC_ROUND_RN		0x00000000
+#define MACH_FPC_ROUND_RZ		0x00000001
+#define MACH_FPC_ROUND_RP		0x00000002
+#define MACH_FPC_ROUND_RM		0x00000003
+#define MACH_FPC_STICKY_BITS		0x0000007c
+#define MACH_FPC_STICKY_INEXACT		0x00000004
+#define MACH_FPC_STICKY_UNDERFLOW	0x00000008
+#define MACH_FPC_STICKY_OVERFLOW	0x00000010
+#define MACH_FPC_STICKY_DIV0		0x00000020
+#define MACH_FPC_STICKY_INVALID		0x00000040
+#define MACH_FPC_ENABLE_BITS		0x00000f80
+#define MACH_FPC_ENABLE_INEXACT		0x00000080
+#define MACH_FPC_ENABLE_UNDERFLOW	0x00000100
+#define MACH_FPC_ENABLE_OVERFLOW	0x00000200
+#define MACH_FPC_ENABLE_DIV0		0x00000400
+#define MACH_FPC_ENABLE_INVALID		0x00000800
+#define MACH_FPC_EXCEPTION_BITS		0x0003f000
+#define MACH_FPC_EXCEPTION_INEXACT	0x00001000
+#define MACH_FPC_EXCEPTION_UNDERFLOW	0x00002000
+#define MACH_FPC_EXCEPTION_OVERFLOW	0x00004000
+#define MACH_FPC_EXCEPTION_DIV0		0x00008000
+#define MACH_FPC_EXCEPTION_INVALID	0x00010000
+#define MACH_FPC_EXCEPTION_UNIMPL	0x00020000
+#define MACH_FPC_COND_BIT		0x00800000
+#define MACH_FPC_FLUSH_BIT		0x01000000
+#define MACH_FPC_MBZ_BITS		0xfe7c0000
+
+/*
+ * Constants to determine if have a floating point instruction.
+ */
+#define MACH_OPCODE_SHIFT	26
+#define MACH_OPCODE_C1		0x11
+
+/*
+ * The low part of the TLB entry.
+ */
+#define VMMACH_TLB_PF_NUM		0x3fffffc0
+#define VMMACH_TLB_ATTR_MASK		0x00000038
+#define VMMACH_TLB_MOD_BIT		0x00000004
+#define VMMACH_TLB_VALID_BIT		0x00000002
+#define VMMACH_TLB_GLOBAL_BIT		0x00000001
+
+#define VMMACH_TLB_PHYS_PAGE_SHIFT	6
+
+/*
+ * The high part of the TLB entry.
+ */
+#define VMMACH_TLB_VIRT_PAGE_NUM	0xffffe000
+#define VMMACH_TLB_PID			0x000000ff
+#define VMMACH_TLB_PID_SHIFT		0
+#define VMMACH_TLB_VIRT_PAGE_SHIFT	12
+
+/*
+ * The number of TLB entries and the first one that write random hits.
+ */
+#define VMMACH_NUM_TLB_ENTRIES		48
+#define VMMACH_WIRED_ENTRIES	 	8
+
+/*
+ * The number of process id entries.
+ */
+#define	VMMACH_NUM_PIDS			256
+
+/*
+ * TLB probe return codes.
+ */
+#define VMMACH_TLB_NOT_FOUND		0
+#define VMMACH_TLB_FOUND		1
+#define VMMACH_TLB_FOUND_WITH_PATCH	2
+#define VMMACH_TLB_PROBE_ERROR		3
+
+/*
+ * Kernel virtual address for user page table entries
+ * (i.e., the address for the context register).
+ */
+#define VMMACH_PTE_BASE		0xFF800000
+
+#endif /* _MACHCONST */
diff --git a/sys/arch/pica/include/mips_opcode.h b/sys/arch/pica/include/mips_opcode.h
new file mode 100644
index 00000000000..7301b3d6548
--- /dev/null
+++ b/sys/arch/pica/include/mips_opcode.h
@@ -0,0 +1,259 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	from: @(#)mips_opcode.h	8.1 (Berkeley) 6/10/93
+ *      $Id: mips_opcode.h,v 1.1 1995/10/18 10:39:13 deraadt Exp $
+ */
+
+/*
+ * Define the instruction formats and opcode values for the
+ * MIPS instruction set.
+ */
+
+/*
+ * Define the instruction formats.
+ */
+typedef union {
+	unsigned word;
+
+#if BYTE_ORDER == LITTLE_ENDIAN
+	struct {
+		unsigned imm: 16;
+		unsigned rt: 5;
+		unsigned rs: 5;
+		unsigned op: 6;
+	} IType;
+
+	struct {
+		unsigned target: 26;
+		unsigned op: 6;
+	} JType;
+
+	struct {
+		unsigned func: 6;
+		unsigned shamt: 5;
+		unsigned rd: 5;
+		unsigned rt: 5;
+		unsigned rs: 5;
+		unsigned op: 6;
+	} RType;
+
+	struct {
+		unsigned func: 6;
+		unsigned fd: 5;
+		unsigned fs: 5;
+		unsigned ft: 5;
+		unsigned fmt: 4;
+		unsigned : 1;		/* always '1' */
+		unsigned op: 6;		/* always '0x11' */
+	} FRType;
+#endif
+} InstFmt;
+
+/*
+ * Values for the 'op' field.
+ */
+#define OP_SPECIAL	000
+#define OP_BCOND	001
+#define OP_J		002
+#define	OP_JAL		003
+#define OP_BEQ		004
+#define OP_BNE		005
+#define OP_BLEZ		006
+#define OP_BGTZ		007
+
+#define OP_ADDI		010
+#define OP_ADDIU	011
+#define OP_SLTI		012
+#define OP_SLTIU	013
+#define OP_ANDI		014
+#define OP_ORI		015
+#define OP_XORI		016
+#define OP_LUI		017
+
+#define OP_COP0		020
+#define OP_COP1		021
+#define OP_COP2		022
+#define OP_COP3		023
+#define	OP_BEQL		024
+#define	OP_BNEL		025
+#define	OP_BLEZL	026
+#define	OP_BGTZL	027
+
+#define	OP_DADDI	030
+#define	OP_DADDIU	031
+#define	OP_LDL		032
+#define	OP_LDR		033
+
+#define	OP_LB		040
+#define	OP_LH		041
+#define OP_LWL		042
+#define OP_LW		043
+#define OP_LBU		044
+#define OP_LHU		045
+#define OP_LWR		046
+#define	OP_LHU		045
+#define	OP_LWR		046
+#define	OP_LWU		047
+
+#define OP_SB		050
+#define OP_SH		051
+#define OP_SWL		052
+#define OP_SW		053
+#define	OP_SDL		054
+#define	OP_SDR		055
+#define OP_SWR		056
+#define	OP_CACHE	057
+
+#define OP_LL		060
+#define OP_LWC1		061
+#define OP_LWC2		062
+#define OP_LWC3		063
+#define	OP_LLD		064
+#define	OP_LD		067
+
+#define OP_SC		070
+#define OP_SWC1		071
+#define OP_SWC2		072
+#define OP_SWC3		073
+#define	OP_SCD		074
+#define	OP_SD		077
+
+/*
+ * Values for the 'func' field when 'op' == OP_SPECIAL.
+ */
+#define OP_SLL		000
+#define OP_SRL		002
+#define OP_SRA		003
+#define OP_SLLV		004
+#define OP_SRLV		006
+#define OP_SRAV		007
+
+#define OP_JR		010
+#define OP_JALR		011
+#define OP_SYSCALL	014
+#define OP_BREAK	015
+#define	OP_SYNC		017
+
+#define OP_MFHI		020
+#define OP_MTHI		021
+#define OP_MFLO		022
+#define OP_MTLO		023
+#define	OP_DSLLV	024
+#define	OP_DSRLV	026
+#define	OP_DSRAV	027
+
+#define OP_MULT		030
+#define OP_MULTU	031
+#define OP_DIV		032
+#define OP_DIVU		033
+#define	OP_DMULT	034
+#define	OP_DMULTU	035
+#define	OP_DDIV		036
+#define	OP_DDIVU	037
+
+
+#define OP_ADD		040
+#define OP_ADDU		041
+#define OP_SUB		042
+#define OP_SUBU		043
+#define OP_AND		044
+#define OP_OR		045
+#define OP_XOR		046
+#define OP_NOR		047
+
+#define OP_SLT		052
+#define OP_SLTU		053
+#define	OP_DADD		054
+#define	OP_DADDU	055
+#define	OP_DSUB		056
+#define	OP_DSUBU	057
+
+#define	OP_TGE		060
+#define	OP_TGEU		061
+#define	OP_TLT		062
+#define	OP_TLTU		063
+#define	OP_TEQ		064
+#define	OP_TNE		066
+
+#define	OP_DSLL		070
+#define	OP_DSRL		072
+#define	OP_DSRA		073
+#define	OP_DSLL32	074
+#define	OP_DSRL32	076
+#define	OP_DSRA32	077
+
+/*
+ * Values for the 'func' field when 'op' == OP_BCOND.
+ */
+#define OP_BLTZ		000
+#define OP_BGEZ		001
+#define	OP_BLTZL	002
+#define	OP_BGEZL	003
+
+#define	OP_TGEI		010
+#define	OP_TGEIU	011
+#define	OP_TLTI		012
+#define	OP_TLTIU	013
+#define	OP_TEQI		014
+#define	OP_TNEI		016
+
+#define OP_BLTZAL	020
+#define	OP_BLTZAL	020
+#define OP_BGEZAL	021
+#define OP_BLTZALL	022
+#define	OP_BGEZALL	023
+
+/*
+ * Values for the 'rs' field when 'op' == OP_COPz.
+ */
+#define OP_MF		000
+#define	OP_DMF		001
+#define OP_MT		004
+#define	OP_DMT		005
+#define OP_BCx		010
+#define OP_BCy		014
+#define OP_CF		002
+#define OP_CT		006
+
+/*
+ * Values for the 'rt' field when 'op' == OP_COPz.
+ */
+#define COPz_BC_TF_MASK	0x01
+#define COPz_BC_TRUE	0x01
+#define COPz_BC_FALSE	0x00
+#define COPz_BCL_TF_MASK	0x02
+#define COPz_BCL_TRUE	0x02
+#define COPz_BCL_FALSE	0x00
diff --git a/sys/arch/pica/include/mouse.h b/sys/arch/pica/include/mouse.h
new file mode 100644
index 00000000000..9c26917d77e
--- /dev/null
+++ b/sys/arch/pica/include/mouse.h
@@ -0,0 +1,49 @@
+/*	$NetBSD: mouse.h,v 1.4 1994/10/27 04:16:10 cgd Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993 Erik Forsberg.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ``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 I 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.
+ */
+
+#ifndef _MOUSE_H_
+#define _MOUSE_H_
+
+struct mouseinfo {
+	unsigned char status;
+	char xmotion, ymotion;
+};
+
+#define BUTSTATMASK	0x07	/* Any mouse button down if any bit set */
+#define BUTCHNGMASK	0x38	/* Any mouse button changed if any bit set */
+
+#define BUT3STAT	0x01	/* Button 3 down if set */
+#define BUT2STAT	0x02	/* Button 2 down if set */
+#define BUT1STAT	0x04	/* Button 1 down if set */
+#define BUT3CHNG	0x08	/* Button 3 changed if set */
+#define BUT2CHNG	0x10	/* Button 2 changed if set */
+#define BUT1CHNG	0x20	/* Button 1 changed if set */
+#define MOVEMENT	0x40	/* Mouse movement detected */
+
+/* Ioctl definitions */
+
+#define MOUSEIOC        ('M'<<8)
+#define MOUSEIOCREAD	(MOUSEIOC|60)
+
+#endif /* !_MOUSE_H_ */
diff --git a/sys/arch/pica/include/param.h b/sys/arch/pica/include/param.h
new file mode 100644
index 00000000000..3f32862f4d8
--- /dev/null
+++ b/sys/arch/pica/include/param.h
@@ -0,0 +1,167 @@
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ * from: Utah Hdr: machparam.h 1.11 89/08/14
+ *
+ *
+ *	from: @(#)param.h	8.1 (Berkeley) 6/10/93
+ *      $Id: param.h,v 1.1 1995/10/18 10:39:13 deraadt Exp $
+ */
+
+/*
+ * Machine dependent constants for Acer Labs PICA_61.
+ */
+#define	MACHINE	     "pica"
+#define MACHINE_ARCH "mips"
+#define MID_PICA MID_PMAX /* For the moment */
+#define MID_MACHINE  MID_PICA
+
+/*
+ * Round p (pointer or byte index) up to a correctly-aligned value for all
+ * data types (int, long, ...).   The result is u_int and must be cast to
+ * any desired pointer type.
+ */
+#define	ALIGNBYTES	7
+#define	ALIGN(p)	(((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)
+
+#define	NBPG		4096		/* bytes/page */
+#define	PGOFSET		(NBPG-1)	/* byte offset into page */
+#define	PGSHIFT		12		/* LOG2(NBPG) */
+#define	NPTEPG		(NBPG/4)
+
+#define NBSEG		0x400000	/* bytes/segment */
+#define	SEGOFSET	(NBSEG-1)	/* byte offset into segment */
+#define	SEGSHIFT	22		/* LOG2(NBSEG) */
+
+#define	KERNBASE	0x80000000	/* start of kernel virtual */
+#define	KERNTEXTOFF	0x80080000	/* start of kernel text for kvm_mkdb */
+#define	BTOPKERNBASE	((u_long)KERNBASE >> PGSHIFT)
+
+#define	DEV_BSIZE	512
+#define	DEV_BSHIFT	9		/* log2(DEV_BSIZE) */
+#define BLKDEV_IOSIZE	2048
+#define	MAXPHYS		(64 * 1024)	/* max raw I/O transfer size */
+
+#define	CLSIZE		1
+#define	CLSIZELOG2	0
+
+/* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */
+#define	SSIZE		1		/* initial stack size/NBPG */
+#define	SINCR		1		/* increment of stack/NBPG */
+
+#define	UPAGES		2		/* pages of u-area */
+#define	UADDR		0xffffc000	/* address of u */
+#define USPACE		(UPAGES*NBPG)	/* size of u-area in bytes */
+#define	UVPN		(UADDR>>PGSHIFT)/* virtual page number of u */
+#define	KERNELSTACK	(UADDR+UPAGES*NBPG)	/* top of kernel stack */
+
+/*
+ * Constants related to network buffer management.
+ * MCLBYTES must be no larger than CLBYTES (the software page size), and,
+ * on machines that exchange pages of input or output buffers with mbuf
+ * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
+ * of the hardware page size.
+ */
+#define	MSIZE		128		/* size of an mbuf */
+#define	MCLBYTES	2048		/* enough for whole Ethernet packet */
+#define	MCLSHIFT	10
+#define	MCLOFSET	(MCLBYTES - 1)
+#ifndef NMBCLUSTERS
+#ifdef GATEWAY
+#define	NMBCLUSTERS	512		/* map size, max cluster allocation */
+#else
+#define	NMBCLUSTERS	256		/* map size, max cluster allocation */
+#endif
+#endif
+
+/*
+ * Size of kernel malloc arena in CLBYTES-sized logical pages
+ */ 
+#ifndef NKMEMCLUSTERS
+#define	NKMEMCLUSTERS	(512*1024/CLBYTES)
+#endif
+
+/* pages ("clicks") (4096 bytes) to disk blocks */
+#define	ctod(x)	((x) << (PGSHIFT - DEV_BSHIFT))
+#define	dtoc(x)	((x) >> (PGSHIFT - DEV_BSHIFT))
+
+/* pages to bytes */
+#define	ctob(x)	((x) << PGSHIFT)
+#define btoc(x) (((x) + PGOFSET) >> PGSHIFT)
+
+/* bytes to disk blocks */
+#define	btodb(x)	((x) >> DEV_BSHIFT)
+#define dbtob(x)	((x) << DEV_BSHIFT)
+
+/*
+ * Map a ``block device block'' to a file system block.
+ * This should be device dependent, and should use the bsize
+ * field from the disk label.
+ * For now though just use DEV_BSIZE.
+ */
+#define	bdbtofsb(bn)	((bn) / (BLKDEV_IOSIZE/DEV_BSIZE))
+
+/*
+ * Mach derived conversion macros
+ */
+#define pica_round_page(x)	((((unsigned)(x)) + NBPG - 1) & ~(NBPG-1))
+#define pica_trunc_page(x)	((unsigned)(x) & ~(NBPG-1))
+#define pica_btop(x)		((unsigned)(x) >> PGSHIFT)
+#define pica_ptob(x)		((unsigned)(x) << PGSHIFT)
+
+#ifdef _KERNEL
+#ifndef LOCORE
+extern int (*Mach_splnet)(), (*Mach_splbio)(), (*Mach_splimp)(),
+	   (*Mach_spltty)(), (*Mach_splclock)(), (*Mach_splstatclock)();
+#define	splnet()	((*Mach_splnet)())
+#define	splbio()	((*Mach_splbio)())
+#define	splimp()	((*Mach_splimp)())
+#define	spltty()	((*Mach_spltty)())
+#define	splclock()	((*Mach_splclock)())
+#define	splstatclock()	((*Mach_splstatclock)())
+
+/*
+ *   Delay is based on an assumtion that each time in the loop
+ *   takes 3 clocks. Three is for branch and subtract in the delay slot.
+ */
+extern	int cpuspeed;
+#define	DELAY(n)	{ register int N = cpuspeed * (n); while ((N -= 3) > 0); }
+#endif
+
+#else /* !_KERNEL */
+#define	DELAY(n)	{ register int N = (n); while (--N > 0); }
+#endif /* !_KERNEL */
diff --git a/sys/arch/pica/include/pcb.h b/sys/arch/pica/include/pcb.h
new file mode 100644
index 00000000000..200a8d5a57e
--- /dev/null
+++ b/sys/arch/pica/include/pcb.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ * from: Utah Hdr: pcb.h 1.13 89/04/23
+ *
+ *	from: @(#)pcb.h	8.1 (Berkeley) 6/10/93
+ *      $Id: pcb.h,v 1.1 1995/10/18 10:39:13 deraadt Exp $
+ */
+
+/*
+ * PICA process control block
+ */
+struct pcb
+{
+	int	pcb_regs[71];	/* saved CPU and floating point registers */
+	label_t	pcb_context;	/* kernel context for resume */
+	int	pcb_onfault;	/* for copyin/copyout faults */
+	void	*pcb_segtab;	/* copy of pmap pm_segtab */
+};
+
+/*
+ * The pcb is augmented with machine-dependent additional data for
+ * core dumps. For the PICA, there is nothing to add.
+ */
+struct md_coredump {
+	long	md_pad[8];
+};
diff --git a/sys/arch/pica/include/pccons.h b/sys/arch/pica/include/pccons.h
new file mode 100644
index 00000000000..53f85653a52
--- /dev/null
+++ b/sys/arch/pica/include/pccons.h
@@ -0,0 +1,21 @@
+/*
+ * pccons.h -- pccons ioctl definitions
+ *
+ *	$Id: pccons.h,v 1.1 1995/10/18 10:39:15 deraadt Exp $
+ */
+
+#ifndef _PCCONS_H_
+#define _PCCONS_H_
+
+#ifndef _KERNEL
+#include <sys/ioctl.h>
+#else
+#include "ioctl.h"
+#endif
+
+#define CONSOLE_X_MODE_ON		_IO('t',121)
+#define CONSOLE_X_MODE_OFF		_IO('t',122)
+#define CONSOLE_X_BELL			_IOW('t',123,int[2])
+#define CONSOLE_SET_TYPEMATIC_RATE	_IOW('t',124,u_char)
+
+#endif /* _PCCONS_H_ */
diff --git a/sys/arch/pica/include/pio.h b/sys/arch/pica/include/pio.h
new file mode 100644
index 00000000000..88ef8f7f120
--- /dev/null
+++ b/sys/arch/pica/include/pio.h
@@ -0,0 +1,46 @@
+/*	$NetBSD: pio.h,v 1.11 1995/04/22 03:59:59 mycroft Exp $	*/
+
+/*
+ * Copyright (c) 1995 Per Fogelstrom.  All rights reserved.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Charles M. Hannum.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
+ */
+
+/*
+ * I/O macros.
+ */
+
+#define	outb(a,v)	(*(volatile unsigned char*)(a) = (v))
+#define	outw(a,v)	(*(volatile unsigned short*)(a) = (v))
+#define	out16(a,v)	outh(a,v)
+#define	outl(a,v)	(*(volatile unsigned int*)(a) = (v))
+#define	out32(a,v)	outw(a,v)
+#define	inb(a)		(*(volatile unsigned char*)(a))
+#define	inw(a)		(*(volatile unsigned short*)(a))
+#define	in16(a)		inh(a)
+#define	inl(a)		(*(volatile unsigned int*)(a))
+#define	in32(a)		inw(a)
+
diff --git a/sys/arch/pica/include/pmap.h b/sys/arch/pica/include/pmap.h
new file mode 100644
index 00000000000..39c51eea199
--- /dev/null
+++ b/sys/arch/pica/include/pmap.h
@@ -0,0 +1,104 @@
+/* 
+ * Copyright (c) 1987 Carnegie-Mellon University
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	from: @(#)pmap.h	8.1 (Berkeley) 6/10/93
+ *      $Id: pmap.h,v 1.1 1995/10/18 10:39:13 deraadt Exp $
+ */
+
+#ifndef	_PMAP_MACHINE_
+#define	_PMAP_MACHINE_
+
+/*
+ * The user address space is 2Gb (0x0 - 0x80000000).
+ * User programs are laid out in memory as follows:
+ *			address
+ *	USRTEXT		0x00001000
+ *	USRDATA		USRTEXT + text_size
+ *	USRSTACK	0x7FFFFFFF
+ *
+ * The user address space is mapped using a two level structure where
+ * virtual address bits 30..22 are used to index into a segment table which
+ * points to a page worth of PTEs (4096 page can hold 1024 PTEs).
+ * Bits 21..12 are then used to index a PTE which describes a page within 
+ * a segment.
+ *
+ * The wired entries in the TLB will contain the following:
+ *	0-1	(UPAGES)	for curproc user struct and kernel stack.
+ *
+ * Note: The kernel doesn't use the same data structures as user programs.
+ * All the PTE entries are stored in a single array in Sysmap which is
+ * dynamically allocated at boot time.
+ */
+
+#define pica_trunc_seg(x)	((vm_offset_t)(x) & ~SEGOFSET)
+#define pica_round_seg(x)	(((vm_offset_t)(x) + SEGOFSET) & ~SEGOFSET)
+#define pmap_segmap(m, v)	((m)->pm_segtab->seg_tab[((v) >> SEGSHIFT)])
+
+#define PMAP_SEGTABSIZE		512
+
+union pt_entry;
+
+struct segtab {
+	union pt_entry	*seg_tab[PMAP_SEGTABSIZE];
+};
+
+/*
+ * Machine dependent pmap structure.
+ */
+typedef struct pmap {
+	int			pm_count;	/* pmap reference count */
+	simple_lock_data_t	pm_lock;	/* lock on pmap */
+	struct pmap_statistics	pm_stats;	/* pmap statistics */
+	int			pm_tlbpid;	/* address space tag */
+	u_int			pm_tlbgen;	/* TLB PID generation number */
+	struct segtab		*pm_segtab;	/* pointers to pages of PTEs */
+} *pmap_t;
+
+/*
+ * Defines for pmap_attributes[phys_mach_page];
+ */
+#define PMAP_ATTR_MOD	0x01	/* page has been modified */
+#define PMAP_ATTR_REF	0x02	/* page has been referenced */
+
+#ifdef	_KERNEL
+extern	char *pmap_attributes;		/* reference and modify bits */
+extern	struct pmap kernel_pmap_store;
+
+#define	pmap_wired_count(pmap) 	((pmap)->pm_stats.wired_count)
+#define pmap_kernel() (&kernel_pmap_store)
+#endif	/* _KERNEL */
+
+#endif	/* _PMAP_MACHINE_ */
diff --git a/sys/arch/pica/include/proc.h b/sys/arch/pica/include/proc.h
new file mode 100644
index 00000000000..202d9562314
--- /dev/null
+++ b/sys/arch/pica/include/proc.h
@@ -0,0 +1,53 @@
+/*	$NetBSD: proc.h,v 1.4 1994/10/26 21:09:52 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	@(#)proc.h	8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * Machine-dependent part of the proc structure for DEC Station.
+ */
+struct mdproc {
+	int	*md_regs;		/* registers on current frame */
+	int	md_flags;		/* machine-dependent flags */
+	int	md_upte[UPAGES];	/* ptes for mapping u page */
+	int	md_ss_addr;		/* single step address for ptrace */
+	int	md_ss_instr;		/* single step instruction for ptrace */
+};
+
+/* md_flags */
+#define	MDP_FPUSED	0x0001	/* floating point coprocessor used */
diff --git a/sys/arch/pica/include/profile.h b/sys/arch/pica/include/profile.h
new file mode 100644
index 00000000000..3fd038adf90
--- /dev/null
+++ b/sys/arch/pica/include/profile.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	from: @(#)profile.h	8.1 (Berkeley) 6/10/93
+ *      $Id: profile.h,v 1.1 1995/10/18 10:39:13 deraadt Exp $
+ */
+
+#define	_MCOUNT_DECL static void __mcount
+
+#define	MCOUNT \
+	asm(".globl _mcount;" \
+	"_mcount:;" \
+	".set noreorder;" \
+	".set noat;" \
+	"sw $4,8($29);" \
+	"sw $5,12($29);" \
+	"sw $6,16($29);" \
+	"sw $7,20($29);" \
+	"sw $1,0($29);" \
+	"sw $31,4($29);" \
+	"move $5,$31;" \
+	"jal ___mcount;" \
+	"move $4,$1;" \
+	"lw $4,8($29);" \
+	"lw $5,12($29);" \
+	"lw $6,16($29);" \
+	"lw $7,20($29);" \
+	"lw $31,4($29);" \
+	"lw $1,0($29);" \
+	"addu $29,$29,8;" \
+	"j $31;" \
+	"move $31,$1;" \
+	".set reorder;" \
+	".set at");
+
+#ifdef _KERNEL
+/*
+ * The following two macros do splhigh and splx respectively.
+ * They have to be defined this way because these are real
+ * functions on the PICA, and we do not want to invoke mcount
+ * recursively.
+ */
+#define	MCOUNT_ENTER	s = _splhigh()
+
+#define	MCOUNT_EXIT	_splx(s)
+#endif /* _KERNEL */
diff --git a/sys/arch/pica/include/psl.h b/sys/arch/pica/include/psl.h
new file mode 100644
index 00000000000..80366abca5a
--- /dev/null
+++ b/sys/arch/pica/include/psl.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	from: @(#)psl.h	8.1 (Berkeley) 6/10/93
+ *      $Id: psl.h,v 1.1 1995/10/18 10:39:13 deraadt Exp $
+ */
+
+#include <machine/machConst.h>
+
+#define	PSL_LOWIPL	(MACH_INT_MASK | MACH_SR_INT_ENAB)
+
+#define	PSL_USERSET (	\
+	MACH_SR_KSU_USER |	\
+	MACH_SR_INT_ENAB |	\
+	MACH_SR_EXL      |	\
+	MACH_INT_MASK)
+
+#define	PSL_USERCLR (	\
+	MACH_SR_COP_USABILITY |	\
+	MACH_SR_BOOT_EXC_VEC |	\
+	MACH_SR_TLB_SHUTDOWN |	\
+	MACH_SR_PARITY_ERR |	\
+	MACH_SR_CACHE_MISS |	\
+	MACH_SR_PARITY_ZERO |	\
+	MACH_SR_SWAP_CACHES |	\
+	MACH_SR_ISOL_CACHES |	\
+	MACH_SR_KU_CUR |	\
+	MACH_SR_INT_ENA_CUR |	\
+	MACH_SR_MBZ)
+
+/*
+ * Macros to decode processor status word.
+ */
+#define	USERMODE(ps)	(((ps) & MACH_SR_KSU_MASK) == MACH_SR_KSU_USER)
+#define	BASEPRI(ps)	(((ps) & (MACH_INT_MASK | MACH_SR_INT_ENA_PREV)) \
+			== (MACH_INT_MASK | MACH_SR_INT_ENA_PREV))
diff --git a/sys/arch/pica/include/pte.h b/sys/arch/pica/include/pte.h
new file mode 100644
index 00000000000..bf73a1f6974
--- /dev/null
+++ b/sys/arch/pica/include/pte.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ * from: Utah Hdr: pte.h 1.11 89/09/03
+ *
+ *	from: @(#)pte.h	8.1 (Berkeley) 6/10/93
+ *      $Id: pte.h,v 1.1 1995/10/18 10:39:13 deraadt Exp $
+ */
+
+/*
+ * R4000 hardware page table entry
+ */
+
+#ifndef LOCORE
+struct pte {
+#if BYTE_ORDER == BIG_ENDIAN
+unsigned int	pg_prot:2,		/* SW: access control */
+		pg_pfnum:24,		/* HW: core page frame number or 0 */
+		pg_attr:3,		/* HW: cache attribute */
+		pg_m:1,			/* HW: modified (dirty) bit */
+		pg_v:1,			/* HW: valid bit */
+		pg_g:1;			/* HW: ignore pid bit */
+#endif
+#if BYTE_ORDER == LITTLE_ENDIAN
+unsigned int 	pg_g:1,			/* HW: ignore pid bit */
+		pg_v:1,			/* HW: valid bit */
+		pg_m:1,			/* HW: modified (dirty) bit */
+		pg_attr:3,			/* HW: cache attribute */
+		pg_pfnum:24,		/* HW: core page frame number or 0 */
+		pg_prot:2;		/* SW: access control */
+#endif
+};
+
+/*
+ * Structure defining an tlb entry data set.
+ */
+
+struct tlb {
+	int	tlb_mask;
+	int	tlb_hi;
+	int	tlb_lo0;
+	int	tlb_lo1;
+};
+
+typedef union pt_entry {
+	unsigned int	pt_entry;	/* for copying, etc. */
+	struct pte	pt_pte;		/* for getting to bits by name */
+} pt_entry_t;	/* Mach page table entry */
+#endif /* LOCORE */
+
+#define	PT_ENTRY_NULL	((pt_entry_t *) 0)
+
+#define PG_WIRED	0x80000000	/* SW */
+#define PG_RO		0x40000000	/* SW */
+
+#define	PG_SVPN		0xfffff000	/* Software page no mask */
+#define	PG_HVPN		0xffffe000	/* Hardware page no mask */
+#define	PG_ODDPG	0x00001000	/* Odd even pte entry */
+#define	PG_ASID		0x000000ff	/* Address space ID */
+#define	PG_G		0x00000001	/* HW */
+#define	PG_V		0x00000002
+#define	PG_NV		0x00000000
+#define	PG_M		0x00000004
+#define	PG_ATTR		0x0000003f
+#define	PG_UNCACHED	0x00000010
+#define	PG_CACHED	0x00000018
+#define	PG_CACHEMODE	0x00000038
+#define	PG_ROPAGE	(PG_V | PG_RO | PG_CACHED) /* Write protected */
+#define	PG_RWPAGE	(PG_V | PG_M | PG_CACHED)  /* Not wr-prot not clean */
+#define	PG_CWPAGE	(PG_V | PG_CACHED)	   /* Not wr-prot but clean */
+#define	PG_IOPAGE	(PG_G | PG_V | PG_M | PG_UNCACHED)
+#define	PG_FRAME	0x3fffffc0
+#define PG_SHIFT	6
+#define vad_to_pfn(x) (((unsigned)(x) >> PG_SHIFT) & PG_FRAME)
+#define pfn_to_vad(x) (((x) & PG_FRAME) << PG_SHIFT)
+#define vad_to_vpn(x) ((unsigned)(x) & PG_SVPN)
+#define vpn_to_vad(x) ((x) & PG_SVPN)
+/* User viritual to pte page entry */
+#define uvtopte(adr) (((adr) >> PGSHIFT) & (NPTEPG -1))
+
+#define	PG_SIZE_4K	0x00000000
+#define	PG_SIZE_16K	0x00006000
+#define	PG_SIZE_64K	0x0001e000
+#define	PG_SIZE_256K	0x0007e000
+#define	PG_SIZE_1M	0x001fe000
+#define	PG_SIZE_4M	0x007fe000
+#define	PG_SIZE_16M	0x01ffe000
+
+#if defined(_KERNEL) && !defined(LOCORE)
+/*
+ * Kernel virtual address to page table entry and visa versa.
+ */
+#define	kvtopte(va) \
+	(Sysmap + (((vm_offset_t)(va) - VM_MIN_KERNEL_ADDRESS) >> PGSHIFT))
+#define	ptetokv(pte) \
+	((((pt_entry_t *)(pte) - Sysmap) << PGSHIFT) + VM_MIN_KERNEL_ADDRESS)
+
+extern	pt_entry_t *Sysmap;		/* kernel pte table */
+extern	u_int Sysmapsize;		/* number of pte's in Sysmap */
+#endif
diff --git a/sys/arch/pica/include/ptrace.h b/sys/arch/pica/include/ptrace.h
new file mode 100644
index 00000000000..acc14e79881
--- /dev/null
+++ b/sys/arch/pica/include/ptrace.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	from: @(#)ptrace.h	8.1 (Berkeley) 6/10/93
+ *      $Id: ptrace.h,v 1.1 1995/10/18 10:39:14 deraadt Exp $
+ */
+
+/*
+ * Machine dependent trace commands.
+ *
+ * None for the pica at this time.
+ */
diff --git a/sys/arch/pica/include/reg.h b/sys/arch/pica/include/reg.h
new file mode 100644
index 00000000000..791233b7cf7
--- /dev/null
+++ b/sys/arch/pica/include/reg.h
@@ -0,0 +1,145 @@
+/*	$NetBSD: reg.h,v 1.5 1995/01/18 06:40:12 mellon Exp $	*/
+
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ * from: Utah Hdr: reg.h 1.1 90/07/09
+ *
+ *	@(#)reg.h	8.2 (Berkeley) 1/11/94
+ */
+
+/*
+ * Location of the users' stored
+ * registers relative to ZERO.
+ * Usage is p->p_regs[XX].
+ */
+#define ZERO	0
+#define AST	1
+#define V0	2
+#define V1	3
+#define A0	4
+#define A1	5
+#define A2	6
+#define A3	7
+#define T0	8
+#define T1	9
+#define T2	10
+#define T3	11
+#define T4	12
+#define T5	13
+#define T6	14
+#define T7	15
+#define S0	16
+#define S1	17
+#define S2	18
+#define S3	19
+#define S4	20
+#define S5	21
+#define S6	22
+#define S7	23
+#define T8	24
+#define T9	25
+#define K0	26
+#define K1	27
+#define GP	28
+#define SP	29
+#define S8	30
+#define RA	31
+#define	SR	32
+#define	PS	SR	/* alias for SR */
+#define MULLO	33
+#define MULHI	34
+#define BADVADDR 35
+#define CAUSE	36
+#define	PC	37
+
+#define FPBASE	38
+#define F0	(FPBASE+0)
+#define F1	(FPBASE+1)
+#define F2	(FPBASE+2)
+#define F3	(FPBASE+3)
+#define F4	(FPBASE+4)
+#define F5	(FPBASE+5)
+#define F6	(FPBASE+6)
+#define F7	(FPBASE+7)
+#define F8	(FPBASE+8)
+#define F9	(FPBASE+9)
+#define F10	(FPBASE+10)
+#define F11	(FPBASE+11)
+#define F12	(FPBASE+12)
+#define F13	(FPBASE+13)
+#define F14	(FPBASE+14)
+#define F15	(FPBASE+15)
+#define F16	(FPBASE+16)
+#define F17	(FPBASE+17)
+#define F18	(FPBASE+18)
+#define F19	(FPBASE+19)
+#define F20	(FPBASE+20)
+#define F21	(FPBASE+21)
+#define F22	(FPBASE+22)
+#define F23	(FPBASE+23)
+#define F24	(FPBASE+24)
+#define F25	(FPBASE+25)
+#define F26	(FPBASE+26)
+#define F27	(FPBASE+27)
+#define F28	(FPBASE+28)
+#define F29	(FPBASE+29)
+#define F30	(FPBASE+30)
+#define F31	(FPBASE+31)
+#define	FSR	(FPBASE+32)
+
+#ifdef IPCREG
+#define	NIPCREG (FSR + 1)
+int ipcreg[NIPCREG] = {
+	ZERO, AST, V0, V1, A0, A1, A2, A3, T0, T1, T2, T3, T4, T5, T6, T7,
+	S0, S1, S2, S3, S4, S5, S6, S7, T8, T9, K0, K1, GP, SP, S8, RA,
+	SR, MULLO, MULHI, BADVADDR, CAUSE, PC,
+	F0, F1, F2, F3, F4, F5, F6, F7,
+	F8, F9, F10, F11, F12, F13, F14, F15,
+	F16, F17, F18, F19, F20, F21, F22, F23,
+	F24, F25, F26, F27, F28, F29, F30, F31, FSR,
+};
+#endif
+
+#ifdef LANGUAGE_C
+/*
+ * Register set accessible via /proc/$pid/reg
+ */
+struct reg {
+        int     r_regs[71];	/* numbered as above */
+};
+#endif /* LANGUAGE_C */
diff --git a/sys/arch/pica/include/regdef.h b/sys/arch/pica/include/regdef.h
new file mode 100644
index 00000000000..46216b57d00
--- /dev/null
+++ b/sys/arch/pica/include/regdef.h
@@ -0,0 +1,73 @@
+/*	$NetBSD: regdef.h,v 1.4 1994/10/26 21:09:58 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell. This file is derived from the MIPS RISC
+ * Architecture book by Gerry Kane.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	@(#)regdef.h	8.1 (Berkeley) 6/10/93
+ */
+
+#define zero	$0	/* always zero */
+#define AT	$at	/* assembler temp */
+#define v0	$2	/* return value */
+#define v1	$3
+#define a0	$4	/* argument registers */
+#define a1	$5
+#define a2	$6
+#define a3	$7
+#define t0	$8	/* temp registers (not saved across subroutine calls) */
+#define t1	$9
+#define t2	$10
+#define t3	$11
+#define t4	$12
+#define t5	$13
+#define t6	$14
+#define t7	$15
+#define s0	$16	/* saved across subroutine calls (callee saved) */
+#define s1	$17
+#define s2	$18
+#define s3	$19
+#define s4	$20
+#define s5	$21
+#define s6	$22
+#define s7	$23
+#define t8	$24	/* two more temp registers */
+#define t9	$25
+#define k0	$26	/* kernel temporary */
+#define k1	$27
+#define gp	$28	/* global pointer */
+#define sp	$29	/* stack pointer */
+#define s8	$30	/* one more callee saved */
+#define ra	$31	/* return address */
diff --git a/sys/arch/pica/include/reloc.h b/sys/arch/pica/include/reloc.h
new file mode 100644
index 00000000000..9d679d7611e
--- /dev/null
+++ b/sys/arch/pica/include/reloc.h
@@ -0,0 +1,73 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	from: @(#)reloc.h	8.1 (Berkeley) 6/10/93
+ *      $Id: reloc.h,v 1.1 1995/10/18 10:39:14 deraadt Exp $
+ *
+ * from: Header: reloc.h,v 1.6 92/06/20 09:59:37 torek Exp
+ */
+
+/*
+ * MIPS relocation types.
+ */
+enum reloc_type {
+	MIPS_RELOC_32,		/* 32-bit absolute */
+	MIPS_RELOC_JMP,		/* 26-bit absolute << 2 | high 4 bits of pc */
+	MIPS_RELOC_WDISP16,	/* 16-bit signed pc-relative << 2 */
+	MIPS_RELOC_HI16,	/* 16-bit absolute << 16 */
+	MIPS_RELOC_HI16_S,	/* 16-bit absolute << 16 (+1 if needed) */
+	MIPS_RELOC_LO16,	/* 16-bit absolute */
+};
+
+/*
+ * MIPS relocation info.
+ *
+ * Symbol-relative relocation is done by:
+ *	1. start with the value r_addend,
+ *	2. locate the appropriate symbol and if defined, add symbol value,
+ *	3. if pc relative, subtract pc,
+ *	4. if the reloc_type is MIPS_RELOC_HI16_S and the result bit 15 is set,
+ *		add 0x00010000,
+ *	5. shift down 2 or 16 if necessary.
+ * The resulting value is then to be stuffed into the appropriate bits
+ * in the object (the low 16, or the low 26 bits).
+ */
+struct reloc_info_pica {
+	u_long	r_address;	/* relocation addr (offset in segment) */
+	u_int	r_index:24,	/* segment (r_extern==0) or symbol index */
+		r_extern:1,	/* if set, r_index is symbol index */
+		:2;		/* unused */
+	enum reloc_type r_type:5; /* relocation type, from above */
+	long	r_addend;	/* value to add to symbol value */
+};
+
+#define relocation_info reloc_info_pica
diff --git a/sys/arch/pica/include/setjmp.h b/sys/arch/pica/include/setjmp.h
new file mode 100644
index 00000000000..c50d15c79b5
--- /dev/null
+++ b/sys/arch/pica/include/setjmp.h
@@ -0,0 +1,7 @@
+/*	$NetBSD: setjmp.h,v 1.1 1994/12/20 10:37:05 cgd Exp $	*/
+
+/*
+ * machine/setjmp.h: machine dependent setjmp-related information.
+ */
+
+#define	_JBLEN	83		/* size, in longs, of a jmp_buf */
diff --git a/sys/arch/pica/include/signal.h b/sys/arch/pica/include/signal.h
new file mode 100644
index 00000000000..9fa32788dc5
--- /dev/null
+++ b/sys/arch/pica/include/signal.h
@@ -0,0 +1,67 @@
+/*	$NetBSD: signal.h,v 1.6 1995/01/18 06:42:01 mellon Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	@(#)signal.h	8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * Machine-dependent signal definitions
+ */
+
+typedef int sig_atomic_t;
+
+#ifndef _ANSI_SOURCE
+/*
+ * Information pushed on stack when a signal is delivered.
+ * This is used by the kernel to restore state following
+ * execution of the signal handler.  It is also made available
+ * to the handler to allow it to restore state properly if
+ * a non-standard exit is performed.
+ */
+struct	sigcontext {
+	int	sc_onstack;	/* sigstack state to restore */
+	int	sc_mask;	/* signal mask to restore */
+	int	sc_pc;		/* pc at time of signal */
+	int	sc_regs[32];	/* processor regs 0 to 31 */
+	int	mullo, mulhi;	/* mullo and mulhi registers... */
+	int	sc_fpused;	/* fp has been used */
+	int	sc_fpregs[33];	/* fp regs 0 to 31 and csr */
+	int	sc_fpc_eir;	/* floating point exception instruction reg */
+	int	xxx[8];		/* XXX reserved */ 
+};
+
+#endif	/* !_ANSI_SOURCE */
diff --git a/sys/arch/pica/include/stdarg.h b/sys/arch/pica/include/stdarg.h
new file mode 100644
index 00000000000..73f3b6e0a1a
--- /dev/null
+++ b/sys/arch/pica/include/stdarg.h
@@ -0,0 +1,64 @@
+/*	$NetBSD: stdarg.h,v 1.7 1995/03/28 18:19:28 jtc Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	@(#)stdarg.h	8.1 (Berkeley) 6/10/93
+ */
+
+#ifndef _PMAX_STDARG_H_
+#define	_PMAX_STDARG_H_
+
+#include <machine/ansi.h>
+
+typedef _BSD_VA_LIST_	va_list;
+
+#define	__va_promote(type) \
+	(((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))
+
+#define	va_start(ap, last) \
+	(ap = ((char *)&(last) + __va_promote(last)))
+
+#ifdef _KERNEL
+#define	va_arg(ap, type) \
+	((type *)(ap += sizeof(type)))[-1]
+#else
+#define	va_arg(ap, type) \
+	((type *)(ap += sizeof(type) == sizeof(int) ? sizeof(type) : \
+		sizeof(type) > sizeof(int) ? \
+		(-(int)(ap) & (sizeof(type) - 1)) + sizeof(type) : \
+		(abort(), 0)))[-1]
+#endif
+
+#define	va_end(ap)	((void) 0)
+
+#endif /* !_PMAX_STDARG_H_ */
diff --git a/sys/arch/pica/include/trap.h b/sys/arch/pica/include/trap.h
new file mode 100644
index 00000000000..2b977477b88
--- /dev/null
+++ b/sys/arch/pica/include/trap.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ * from: Utah Hdr: trap.h 1.1 90/07/09
+ *
+ *	from: @(#)trap.h	8.1 (Berkeley) 6/10/93
+ *      $Id: trap.h,v 1.1 1995/10/18 10:39:15 deraadt Exp $
+ */
+
+/*
+ * Trap codes
+ * also known in trap.c for name strings
+ */
+
+#define T_INT			0	/* Interrupt pending */
+#define T_TLB_MOD		1	/* TLB modified fault */
+#define T_TLB_LD_MISS		2	/* TLB miss on load or ifetch */
+#define T_TLB_ST_MISS		3	/* TLB miss on a store */
+#define T_ADDR_ERR_LD		4	/* Address error on a load or ifetch */
+#define T_ADDR_ERR_ST		5	/* Address error on a store */
+#define T_BUS_ERR_IFETCH	6	/* Bus error on an ifetch */
+#define T_BUS_ERR_LD_ST		7	/* Bus error on a load or store */
+#define T_SYSCALL		8	/* System call */
+#define T_BREAK			9	/* Breakpoint */
+#define T_RES_INST		10	/* Reserved instruction exception */
+#define T_COP_UNUSABLE		11	/* Coprocessor unusable */
+#define T_OVFLOW		12	/* Arithmetic overflow */
+#define	T_TRAP			13	/* Trap instruction */
+#define	T_VCEI			14	/* Viritual coherency instruction */
+#define	T_FPE			15	/* Floating point exception */
+#define	T_WATCH			23	/* Watch address reference */
+#define T_VCED			31	/* Viritual coherency data */
+
+#define	T_USER			0x20	/* user-mode flag or'ed with type */
diff --git a/sys/arch/pica/include/types.h b/sys/arch/pica/include/types.h
new file mode 100644
index 00000000000..7e02fc291e0
--- /dev/null
+++ b/sys/arch/pica/include/types.h
@@ -0,0 +1,78 @@
+/*	$NetBSD: types.h,v 1.10 1995/07/06 03:39:43 cgd Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	@(#)types.h	8.3 (Berkeley) 1/5/94
+ */
+
+#ifndef	_MACHTYPES_H_
+#define	_MACHTYPES_H_
+
+#include <sys/cdefs.h>
+
+#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
+typedef struct _physadr {
+	int r[1];
+} *physadr;
+
+typedef struct label_t {
+	int val[12];
+} label_t;
+#endif
+
+typedef	unsigned long	vm_offset_t;
+typedef	unsigned long	vm_size_t;
+
+/*
+ * Basic integral types.  Omit the typedef if
+ * not possible for a machine/compiler combination.
+ */
+#define	__BIT_TYPES_DEFINED__
+typedef	__signed char		   int8_t;
+typedef	unsigned char		 u_int8_t;
+typedef	short			  int16_t;
+typedef	unsigned short		u_int16_t;
+typedef	int			  int32_t;
+typedef	unsigned int		u_int32_t;
+typedef	long long		  int64_t;
+typedef	unsigned long long	u_int64_t;
+
+typedef int32_t			register_t;
+
+#define	__BDEVSW_DUMP_OLD_TYPE
+#define	__SWAP_BROKEN
+
+#endif	/* _MACHTYPES_H_ */
diff --git a/sys/arch/pica/include/varargs.h b/sys/arch/pica/include/varargs.h
new file mode 100644
index 00000000000..6e45f73d1ee
--- /dev/null
+++ b/sys/arch/pica/include/varargs.h
@@ -0,0 +1,68 @@
+/*	$NetBSD: varargs.h,v 1.8 1995/03/28 18:19:30 jtc Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ * (c) UNIX System Laboratories, Inc.
+ * All or some portions of this file are derived from material licensed
+ * to the University of California by American Telephone and Telegraph
+ * Co. or Unix System Laboratories, Inc. and are reproduced herein with
+ * the permission of UNIX System Laboratories, Inc.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ *	@(#)varargs.h	8.2 (Berkeley) 3/22/94
+ */
+
+#ifndef _PMAX_VARARGS_H_
+#define	_PMAX_VARARGS_H_
+
+#include <machine/ansi.h>
+
+typedef _BSD_VA_LIST_	va_list;
+
+#define	va_dcl	int va_alist;
+
+#define	va_start(ap) \
+	ap = (char *)&va_alist
+
+#ifdef _KERNEL
+#define	va_arg(ap, type) \
+	((type *)(ap += sizeof(type)))[-1]
+#else
+#define	va_arg(ap, type) \
+	((type *)(ap += sizeof(type) == sizeof(int) ? sizeof(type) : \
+		sizeof(type) > sizeof(int) ? \
+		(-(int)(ap) & (sizeof(type) - 1)) + sizeof(type) : \
+		(abort(), 0)))[-1]
+#endif
+
+#define	va_end(ap)	((void) 0)
+
+#endif /* !_PMAX_VARARGS_H_ */
diff --git a/sys/arch/pica/include/vmparam.h b/sys/arch/pica/include/vmparam.h
new file mode 100644
index 00000000000..6215614fcf1
--- /dev/null
+++ b/sys/arch/pica/include/vmparam.h
@@ -0,0 +1,241 @@
+/*	$NetBSD: vmparam.h,v 1.5 1994/10/26 21:10:10 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * 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 reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
+ *
+ * from: Utah Hdr: vmparam.h 1.16 91/01/18
+ *
+ *	@(#)vmparam.h	8.2 (Berkeley) 4/22/94
+ */
+
+/*
+ * Machine dependent constants for DEC Station 3100.
+ */
+/*
+ * USRTEXT is the start of the user text/data space, while USRSTACK
+ * is the top (end) of the user stack.  LOWPAGES and HIGHPAGES are
+ * the number of pages from the beginning of the P0 region to the
+ * beginning of the text and from the beginning of the P1 region to the
+ * beginning of the stack respectively.
+ */
+#define	USRTEXT		0x00001000
+#define	USRSTACK	0x80000000	/* Start of user stack */
+#define	BTOPUSRSTACK	0x80000		/* btop(USRSTACK) */
+#define	LOWPAGES	0x00001
+#define	HIGHPAGES	0
+
+/*
+ * Virtual memory related constants, all in bytes
+ */
+#ifndef MAXTSIZ
+#define	MAXTSIZ		(24*1024*1024)		/* max text size */
+#endif
+#ifndef DFLDSIZ
+#define	DFLDSIZ		(32*1024*1024)		/* initial data size limit */
+#endif
+#ifndef MAXDSIZ
+#define	MAXDSIZ		(32*1024*1024)		/* max data size */
+#endif
+#ifndef	DFLSSIZ
+#define	DFLSSIZ		(1024*1024)		/* initial stack size limit */
+#endif
+#ifndef	MAXSSIZ
+#define	MAXSSIZ		MAXDSIZ			/* max stack size */
+#endif
+
+/*
+ * Default sizes of swap allocation chunks (see dmap.h).
+ * The actual values may be changed in vminit() based on MAXDSIZ.
+ * With MAXDSIZ of 16Mb and NDMAP of 38, dmmax will be 1024.
+ * DMMIN should be at least ctod(1) so that vtod() works.
+ * vminit() insures this.
+ */
+#define	DMMIN	32			/* smallest swap allocation */
+#define	DMMAX	4096			/* largest potential swap allocation */
+
+/*
+ * Sizes of the system and user portions of the system page table.
+ */
+/* SYSPTSIZE IS SILLY; (really number of buffers for I/O) */
+#define	SYSPTSIZE	1228
+#define	USRPTSIZE 	1024
+
+/*
+ * PTEs for mapping user space into the kernel for phyio operations.
+ * 16 pte's are enough to cover 8 disks * MAXBSIZE.
+ */
+#ifndef USRIOSIZE
+#define USRIOSIZE	32
+#endif
+
+/*
+ * PTEs for system V style shared memory.
+ * This is basically slop for kmempt which we actually allocate (malloc) from.
+ */
+#ifndef SHMMAXPGS
+#define SHMMAXPGS	1024		/* 4mb */
+#endif
+
+/*
+ * Boundary at which to place first MAPMEM segment if not explicitly
+ * specified.  Should be a power of two.  This allows some slop for
+ * the data segment to grow underneath the first mapped segment.
+ */
+#define MMSEG		0x200000
+
+/*
+ * The size of the clock loop.
+ */
+#define	LOOPPAGES	(maxfree - firstfree)
+
+/*
+ * The time for a process to be blocked before being very swappable.
+ * This is a number of seconds which the system takes as being a non-trivial
+ * amount of real time.  You probably shouldn't change this;
+ * it is used in subtle ways (fractions and multiples of it are, that is, like
+ * half of a ``long time'', almost a long time, etc.)
+ * It is related to human patience and other factors which don't really
+ * change over time.
+ */
+#define	MAXSLP 		20
+
+/*
+ * A swapped in process is given a small amount of core without being bothered
+ * by the page replacement algorithm.  Basically this says that if you are
+ * swapped in you deserve some resources.  We protect the last SAFERSS
+ * pages against paging and will just swap you out rather than paging you.
+ * Note that each process has at least UPAGES+CLSIZE pages which are not
+ * paged anyways (this is currently 8+2=10 pages or 5k bytes), so this
+ * number just means a swapped in process is given around 25k bytes.
+ * Just for fun: current memory prices are 4600$ a megabyte on VAX (4/22/81),
+ * so we loan each swapped in process memory worth 100$, or just admit
+ * that we don't consider it worthwhile and swap it out to disk which costs
+ * $30/mb or about $0.75.
+ */
+#define	SAFERSS		4		/* nominal ``small'' resident set size
+					   protected against replacement */
+
+/*
+ * DISKRPM is used to estimate the number of paging i/o operations
+ * which one can expect from a single disk controller.
+ */
+#define	DISKRPM		60
+
+/*
+ * Klustering constants.  Klustering is the gathering
+ * of pages together for pagein/pageout, while clustering
+ * is the treatment of hardware page size as though it were
+ * larger than it really is.
+ *
+ * KLMAX gives maximum cluster size in CLSIZE page (cluster-page)
+ * units.  Note that ctod(KLMAX*CLSIZE) must be <= DMMIN in dmap.h.
+ * ctob(KLMAX) should also be less than MAXPHYS (in vm_swp.c)
+ * unless you like "big push" panics.
+ */
+
+#ifdef notdef /* XXX */
+#define	KLMAX	(4/CLSIZE)
+#define	KLSEQL	(2/CLSIZE)		/* in klust if vadvise(VA_SEQL) */
+#define	KLIN	(4/CLSIZE)		/* default data/stack in klust */
+#define	KLTXT	(4/CLSIZE)		/* default text in klust */
+#define	KLOUT	(4/CLSIZE)
+#else
+#define	KLMAX	(1/CLSIZE)
+#define	KLSEQL	(1/CLSIZE)
+#define	KLIN	(1/CLSIZE)
+#define	KLTXT	(1/CLSIZE)
+#define	KLOUT	(1/CLSIZE)
+#endif
+
+/*
+ * KLSDIST is the advance or retard of the fifo reclaim for sequential
+ * processes data space.
+ */
+#define	KLSDIST	3		/* klusters advance/retard for seq. fifo */
+
+/*
+ * Paging thresholds (see vm_sched.c).
+ * Strategy of 1/19/85:
+ *	lotsfree is 512k bytes, but at most 1/4 of memory
+ *	desfree is 200k bytes, but at most 1/8 of memory
+ */
+#define	LOTSFREE	(512 * 1024)
+#define	LOTSFREEFRACT	4
+#define	DESFREE		(200 * 1024)
+#define	DESFREEFRACT	8
+
+/*
+ * There are two clock hands, initially separated by HANDSPREAD bytes
+ * (but at most all of user memory).  The amount of time to reclaim
+ * a page once the pageout process examines it increases with this
+ * distance and decreases as the scan rate rises.
+ */
+#define	HANDSPREAD	(2 * 1024 * 1024)
+
+/*
+ * The number of times per second to recompute the desired paging rate
+ * and poke the pagedaemon.
+ */
+#define	RATETOSCHEDPAGING	4
+
+/*
+ * Believed threshold (in megabytes) for which interleaved
+ * swapping area is desirable.
+ */
+#define	LOTSOFMEM	2
+
+#define	mapin(pte, v, pfnum, prot) \
+	(*(int *)(pte) = ((pfnum) << PG_SHIFT) | (prot), MachTLBFlushAddr(v))
+
+/*
+ * Mach derived constants
+ */
+
+/* user/kernel map constants */
+#define VM_MIN_ADDRESS		((vm_offset_t)0x00000000)
+#define VM_MAXUSER_ADDRESS	((vm_offset_t)0x80000000)
+#define VM_MAX_ADDRESS		((vm_offset_t)0x80000000)
+#define VM_MIN_KERNEL_ADDRESS	((vm_offset_t)0xC0000000)
+#define VM_MAX_KERNEL_ADDRESS	((vm_offset_t)0xFFFFC000)
+
+/* virtual sizes (bytes) for various kernel submaps */
+#define VM_MBUF_SIZE		(NMBCLUSTERS*MCLBYTES)
+#define VM_KMEM_SIZE		(NKMEMCLUSTERS*CLBYTES)
+#define VM_PHYS_SIZE		(USRIOSIZE*CLBYTES)
+
+/* pcb base */
+#define	pcbb(p)		((u_int)(p)->p_addr)