1 /* $Id$
2 *
3 * This file is subject to the terms and conditions of the GNU General Public
4 * License. See the file "COPYING" in the main directory of this archive
5 * for more details.
6 *
7 * Copyright (C) 1985 MIPS Computer Systems, Inc.
8 * Copyright (C) 1990 - 1992, 1999 Silicon Graphics, Inc.
9 * Copyright (C) 1999 Ralf Baechle
10 */
11 #ifndef _ASM_REGDEF_H
12 #define _ASM_REGDEF_H
13
14 #define zero $0 /* wired zero */
15 #define AT $at /* assembler temp - uppercase because of ".set at" */
16 #define v0 $2 /* return value - caller saved */
17 #define v1 $3
18 #define a0 $4 /* argument registers */
19 #define a1 $5
20 #define a2 $6
21 #define a3 $7
22 #define a4 $8 /* arg reg 64 bit; caller saved in 32 bit */
23 #define ta0 $8
24 #define a5 $9
25 #define ta1 $9
26 #define a6 $10
27 #define ta2 $10
28 #define a7 $11
29 #define ta3 $11
30 #define t0 $12 /* caller saved */
31 #define t1 $13
32 #define t2 $14
33 #define t3 $15
34 #define s0 $16 /* callee saved */
35 #define s1 $17
36 #define s2 $18
37 #define s3 $19
38 #define s4 $20
39 #define s5 $21
40 #define s6 $22
41 #define s7 $23
42 #define t8 $24 /* caller saved */
43 #define t9 $25 /* callee address for PIC/temp */
44 #define jp $25 /* PIC jump register */
45 #define k0 $26 /* kernel temporary */
46 #define k1 $27
47 #define gp $28 /* global pointer - caller saved for PIC */
48 #define sp $29 /* stack pointer */
49 #define fp $30 /* frame pointer */
50 #define s8 $30 /* callee saved */
51 #define ra $31 /* return address */
52
53 #endif /* _ASM_REGDEF_H */
54
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