1/*	$OpenBSD: regdef.h,v 1.3 2005/08/07 07:29:44 miod Exp $	*/
2
3/*
4 * Copyright (c) 1992, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell. This file is derived from the MIPS RISC
9 * Architecture book by Gerry Kane.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 *	@(#)regdef.h	8.1 (Berkeley) 6/10/93
36 */
37#ifndef _MIPS_REGDEF_H_
38#define _MIPS_REGDEF_H_
39
40#define zero	$0	/* always zero */
41#define AT	$at	/* assembler temp */
42#define v0	$2	/* return value */
43#define v1	$3
44#define a0	$4	/* argument registers */
45#define a1	$5
46#define a2	$6
47#define a3	$7
48#if defined(__mips_n32) || defined(__mips_n64)
49#define a4	$8	/* expanded register arguments */
50#define a5	$9
51#define a6	$10
52#define a7	$11
53#define ta0	$8	/* alias */
54#define ta1	$9
55#define ta2	$10
56#define ta3	$11
57#define t0	$12	/* temp registers (not saved across subroutine calls) */
58#define t1	$13
59#define t2	$14
60#define t3	$15
61#else
62#define t0	$8	/* temp registers (not saved across subroutine calls) */
63#define t1	$9
64#define t2	$10
65#define t3	$11
66#define t4	$12
67#define t5	$13
68#define t6	$14
69#define t7	$15
70#define ta0	$12	/* alias */
71#define ta1	$13
72#define ta2	$14
73#define ta3	$15
74#endif
75#define s0	$16	/* saved across subroutine calls (callee saved) */
76#define s1	$17
77#define s2	$18
78#define s3	$19
79#define s4	$20
80#define s5	$21
81#define s6	$22
82#define s7	$23
83#define t8	$24	/* two more temp registers */
84#define t9	$25
85#define k0	$26	/* kernel temporary */
86#define k1	$27
87#define gp	$28	/* global pointer */
88#define sp	$29	/* stack pointer */
89#define s8	$30	/* one more callee saved */
90#define ra	$31	/* return address */
91
92#endif /* !_MIPS_REGDEF_H_ */
93