reg.h revision 1.9 
1/*	$NetBSD: reg.h,v 1.9 1995/01/26 18:26:01 mycroft Exp $	*/
2
3/*
4 * Copyright (c) 1988 University of Utah.
5 * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * the Systems Programming Group of the University of Utah Computer
10 * Science Department.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 *    must display the following acknowledgement:
22 *	This product includes software developed by the University of
23 *	California, Berkeley and its contributors.
24 * 4. Neither the name of the University nor the names of its contributors
25 *    may be used to endorse or promote products derived from this software
26 *    without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 *
40 * from: Utah Hdr: reg.h 1.1 90/07/09
41 *
42 *	@(#)reg.h	7.2 (Berkeley) 11/3/90
43 */
44
45#ifndef _M68K_REG_H_
46#define _M68K_REG_H_
47
48/*
49 * Register set accessible via /proc/$pid/reg and ptrace()
50 */
51struct reg {
52	int	r_regs[16];	/* D0-D7/A0-A7 */
53	int	r_sr;
54	int	r_pc;
55};
56
57/* XXXX this is historical (but it can't be deprecated quite yet) */
58
59/*
60 * Location of the users' stored
61 * registers relative to D0.
62 * Usage is u.u_ar0[XX].
63 */
64#define	D0	(0)
65#define	D1	(1)
66#define	D2	(2)
67#define	D3	(3)
68#define	D4	(4)
69#define	D5	(5)
70#define	D6	(6)
71#define	D7	(7)
72#define	A0	(8)
73#define	A1	(9)
74#define	A2	(10)
75#define	A3	(11)
76#define	A4	(12)
77#define	A5	(13)
78#define	A6	(14)
79#define	A7	(15)
80
81#define	SP	A7
82#define	PS	(16)
83#define	PC	(17)
84
85#ifdef KERNEL
86/*
87 * Due to a mental lapse somewhere down the line, wait returns its values
88 * in strange registers.  Kludge it up here so we don't have to in the
89 * machine-independent code.
90 */
91#define	R0	D1
92#define	R1	A0
93#endif
94
95#endif /* !_M68K_REG_H_ */
96