1/* Copyright (C) 1997-2025 Free Software Foundation, Inc.
 2   This file is part of the GNU C Library.
 3
 4   The GNU C Library is free software; you can redistribute it and/or
 5   modify it under the terms of the GNU Lesser General Public
 6   License as published by the Free Software Foundation; either
 7   version 2.1 of the License, or (at your option) any later version.
 8
 9   The GNU C Library is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12   Lesser General Public License for more details.
13
14   You should have received a copy of the GNU Lesser General Public
15   License along with the GNU C Library.  If not, see
16   <https://www.gnu.org/licenses/>.  */
17
18#ifndef _SYS_REGDEF_H
19#define _SYS_REGDEF_H
20
21#include <sgidefs.h>
22
23/*
24 * Symbolic register names for 32 bit ABI
25 */
26#define zero    $0      /* wired zero */
27#define AT      $1      /* assembler temp  - uppercase because of ".set at" */
28#define v0      $2      /* return value */
29#define v1      $3
30#define a0      $4      /* argument registers */
31#define a1      $5
32#define a2      $6
33#define a3      $7
34#if _MIPS_SIM != _ABIO32
35#define a4      $8
36#define a5      $9
37#define a6      $10
38#define a7      $11
39#define t0      $12
40#define t1      $13
41#define t2      $14
42#define t3      $15
43#define ta0     a4
44#define ta1     a5
45#define ta2     a6
46#define ta3     a7
47#else /* if _MIPS_SIM == _ABIO32 */
48#define t0      $8      /* caller saved */
49#define t1      $9
50#define t2      $10
51#define t3      $11
52#define t4      $12
53#define t5      $13
54#define t6      $14
55#define t7      $15
56#define ta0     t4
57#define ta1     t5
58#define ta2     t6
59#define ta3     t7
60#endif /* _MIPS_SIM == _ABIO32 */
61#define s0      $16     /* callee saved */
62#define s1      $17
63#define s2      $18
64#define s3      $19
65#define s4      $20
66#define s5      $21
67#define s6      $22
68#define s7      $23
69#define t8      $24     /* caller saved */
70#define t9      $25
71#define jp      $25     /* PIC jump register */
72#define k0      $26     /* kernel scratch */
73#define k1      $27
74#define gp      $28     /* global pointer */
75#define sp      $29     /* stack pointer */
76#define fp      $30     /* frame pointer */
77#define s8	$30	/* same like fp! */
78#define ra      $31     /* return address */
79
80#endif /* _SYS_REGDEF_H */