regnum.h revision 202031 
1/*	$OpenBSD: regnum.h,v 1.3 1999/01/27 04:46:06 imp Exp $	*/
2
3/*-
4 * Copyright (c) 1988 University of Utah.
5 * Copyright (c) 1992, 1993
6 *	The Regents of the University of California.  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 and Ralph Campbell.
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 * 4. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 *	from: Utah Hdr: reg.h 1.1 90/07/09
37 *	@(#)reg.h	8.2 (Berkeley) 1/11/94
38 *	JNPR: regnum.h,v 1.6 2007/08/09 11:23:32 katta
39 * $FreeBSD: head/sys/mips/include/regnum.h 202031 2010-01-10 19:50:24Z imp $
40 */
41
42#ifndef _MACHINE_REGNUM_H_
43#define	_MACHINE_REGNUM_H_
44
45#define	STAND_ARG_SIZE		16
46#define	STAND_FRAME_SIZE	24
47#define	STAND_RA_OFFSET		20
48
49/* This must match the numbers
50 * in pcb.h and is used by
51 * swtch.S
52 */
53#define PREG_S0   0
54#define PREG_S1   1
55#define PREG_S2   2
56#define PREG_S3   3
57#define PREG_S4   4
58#define PREG_S5   5
59#define PREG_S6   6
60#define PREG_S7   7
61#define PREG_SP   8
62#define PREG_S8   9
63#define PREG_RA   10
64#define PREG_SR   11
65#define PREG_GP   12
66#define PREG_PC   13
67
68/*
69 * Location of the saved registers relative to ZERO.
70 * This must match struct trapframe defined in frame.h exactly.
71 */
72#define	ZERO	0
73#define	AST	1
74#define	V0	2
75#define	V1	3
76#define	A0	4
77#define	A1	5
78#define	A2	6
79#define	A3	7
80#define	T0	8
81#define	T1	9
82#define	T2	10
83#define	T3	11
84#define	TA0	12
85#define	TA1	13
86#define	TA2	14
87#define	TA3	15
88#define	S0	16
89#define	S1	17
90#define	S2	18
91#define	S3	19
92#define	S4	20
93#define	S5	21
94#define	S6	22
95#define	S7	23
96#define	T8	24
97#define	T9	25
98#define	K0	26
99#define	K1	27
100#define	GP	28
101#define	SP	29
102#define	S8	30
103#define	RA	31
104#define	SR	32
105#define	PS	SR	/* alias for SR */
106#define	MULLO	33
107#define	MULHI	34
108#define	BADVADDR 35
109#define	CAUSE	36
110#define	PC	37
111/*
112 * IC is valid only on RM7K and RM9K processors. Access to this is
113 * controlled by IC_INT_REG which defined in kernel config
114 */
115#define	IC	38
116#define	DUMMY	39	/* for 8 byte alignment */
117#define	NUMSAVEREGS 40
118
119/*
120 * Index of FP registers in 'struct frame', counting from the beginning
121 * of the frame (i.e., including the general registers).
122 */
123#define	FPBASE	NUMSAVEREGS
124#define	F0	(FPBASE+0)
125#define	F1	(FPBASE+1)
126#define	F2	(FPBASE+2)
127#define	F3	(FPBASE+3)
128#define	F4	(FPBASE+4)
129#define	F5	(FPBASE+5)
130#define	F6	(FPBASE+6)
131#define	F7	(FPBASE+7)
132#define	F8	(FPBASE+8)
133#define	F9	(FPBASE+9)
134#define	F10	(FPBASE+10)
135#define	F11	(FPBASE+11)
136#define	F12	(FPBASE+12)
137#define	F13	(FPBASE+13)
138#define	F14	(FPBASE+14)
139#define	F15	(FPBASE+15)
140#define	F16	(FPBASE+16)
141#define	F17	(FPBASE+17)
142#define	F18	(FPBASE+18)
143#define	F19	(FPBASE+19)
144#define	F20	(FPBASE+20)
145#define	F21	(FPBASE+21)
146#define	F22	(FPBASE+22)
147#define	F23	(FPBASE+23)
148#define	F24	(FPBASE+24)
149#define	F25	(FPBASE+25)
150#define	F26	(FPBASE+26)
151#define	F27	(FPBASE+27)
152#define	F28	(FPBASE+28)
153#define	F29	(FPBASE+29)
154#define	F30	(FPBASE+30)
155#define	F31	(FPBASE+31)
156#define	FSR	(FPBASE+32)
157#define FSR_DUMMY (FPBASE+33) /* For 8 byte alignment */
158
159#define	NUMFPREGS	34
160
161#define	NREGS	(NUMSAVEREGS + NUMFPREGS)
162
163/*
164 * Index of FP registers in 'struct frame', relative to the base
165 * of the FP registers in frame (i.e., *not* including the general
166 * registers).
167 */
168#define	F0_NUM	(0)
169#define	F1_NUM	(1)
170#define	F2_NUM	(2)
171#define	F3_NUM	(3)
172#define	F4_NUM	(4)
173#define	F5_NUM	(5)
174#define	F6_NUM	(6)
175#define	F7_NUM	(7)
176#define	F8_NUM	(8)
177#define	F9_NUM	(9)
178#define	F10_NUM	(10)
179#define	F11_NUM	(11)
180#define	F12_NUM	(12)
181#define	F13_NUM	(13)
182#define	F14_NUM	(14)
183#define	F15_NUM	(15)
184#define	F16_NUM	(16)
185#define	F17_NUM	(17)
186#define	F18_NUM	(18)
187#define	F19_NUM	(19)
188#define	F20_NUM	(20)
189#define	F21_NUM	(21)
190#define	F22_NUM	(22)
191#define	F23_NUM	(23)
192#define	F24_NUM	(24)
193#define	F25_NUM	(25)
194#define	F26_NUM	(26)
195#define	F27_NUM	(27)
196#define	F28_NUM	(28)
197#define	F29_NUM	(29)
198#define	F30_NUM	(30)
199#define	F31_NUM	(31)
200#define	FSR_NUM	(32)
201
202#endif /* !_MACHINE_REGNUM_H_ */
203