1/* $NetBSD: reg.h,v 1.4 2000/06/08 03:10:06 thorpej Exp $ */
2
3/*
4 * Copyright (c) 1994, 1995 Carnegie-Mellon University.
5 * All rights reserved.
6 *
7 * Author: Chris G. Demetriou
8 *
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
22 *  School of Computer Science
23 *  Carnegie Mellon University
24 *  Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 */
29
30#ifndef _ALPHA_REG_H_
31#define	_ALPHA_REG_H_
32
33/*
34 * XXX where did this info come from?
35 */
36
37/*
38 * Struct reg, used for procfs and in signal contexts
39 * Note that in signal contexts, it's represented as an array.
40 * That array has to look exactly like 'struct reg' though.
41 */
42#define	R_V0	0
43#define	R_T0	1
44#define	R_T1	2
45#define	R_T2	3
46#define	R_T3	4
47#define	R_T4	5
48#define	R_T5	6
49#define	R_T6	7
50#define	R_T7	8
51#define	R_S0	9
52#define	R_S1	10
53#define	R_S2	11
54#define	R_S3	12
55#define	R_S4	13
56#define	R_S5	14
57#define	R_S6	15
58#define	R_A0	16
59#define	R_A1	17
60#define	R_A2	18
61#define	R_A3	19
62#define	R_A4	20
63#define	R_A5	21
64#define	R_T8	22
65#define	R_T9	23
66#define	R_T10	24
67#define	R_T11	25
68#define	R_RA	26
69#define	R_T12	27
70#define	R_AT	28
71#define	R_GP	29
72#define	R_SP	30
73#define	R_ZERO	31
74
75struct reg {
76	uint64_t	r_regs[32];
77};
78
79/*
80 * Floating point unit state. (also, register set used for ptrace.)
81 *
82 * The floating point registers for a process, saved only when
83 * necessary.
84 *
85 * Note that in signal contexts, it's represented as an array.
86 * That array has to look exactly like 'struct reg' though.
87 */
88struct fpreg {
89	uint64_t	fpr_regs[32];
90	uint64_t	fpr_cr;
91};
92
93#ifdef _KERNEL
94void	restorefpstate(struct fpreg *);
95void	savefpstate(struct fpreg *);
96#endif
97
98#endif /* _ALPHA_REG_H_ */
99