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1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (C) 1985 MIPS Computer Systems, Inc. | |
7 | * Copyright (C) 1994, 95, 99, 2003 by Ralf Baechle | |
8 | * Copyright (C) 1990 - 1992, 1999 Silicon Graphics, Inc. | |
3ba1e543 RB |
9 | * Copyright (C) 2011 Wind River Systems, |
10 | * written by Ralf Baechle <ralf@linux-mips.org> | |
1da177e4 LT |
11 | */ |
12 | #ifndef _ASM_REGDEF_H | |
13 | #define _ASM_REGDEF_H | |
14 | ||
15 | #include <asm/sgidefs.h> | |
16 | ||
17 | #if _MIPS_SIM == _MIPS_SIM_ABI32 | |
18 | ||
19 | /* | |
20 | * Symbolic register names for 32 bit ABI | |
21 | */ | |
70342287 RB |
22 | #define zero $0 /* wired zero */ |
23 | #define AT $1 /* assembler temp - uppercase because of ".set at" */ | |
24 | #define v0 $2 /* return value */ | |
25 | #define v1 $3 | |
26 | #define a0 $4 /* argument registers */ | |
27 | #define a1 $5 | |
28 | #define a2 $6 | |
29 | #define a3 $7 | |
30 | #define t0 $8 /* caller saved */ | |
31 | #define t1 $9 | |
32 | #define t2 $10 | |
33 | #define t3 $11 | |
34 | #define t4 $12 | |
3ba1e543 | 35 | #define ta0 $12 |
70342287 | 36 | #define t5 $13 |
3ba1e543 | 37 | #define ta1 $13 |
70342287 | 38 | #define t6 $14 |
3ba1e543 | 39 | #define ta2 $14 |
70342287 | 40 | #define t7 $15 |
3ba1e543 | 41 | #define ta3 $15 |
70342287 RB |
42 | #define s0 $16 /* callee saved */ |
43 | #define s1 $17 | |
44 | #define s2 $18 | |
45 | #define s3 $19 | |
46 | #define s4 $20 | |
47 | #define s5 $21 | |
48 | #define s6 $22 | |
49 | #define s7 $23 | |
50 | #define t8 $24 /* caller saved */ | |
51 | #define t9 $25 | |
52 | #define jp $25 /* PIC jump register */ | |
53 | #define k0 $26 /* kernel scratch */ | |
54 | #define k1 $27 | |
55 | #define gp $28 /* global pointer */ | |
56 | #define sp $29 /* stack pointer */ | |
57 | #define fp $30 /* frame pointer */ | |
1da177e4 | 58 | #define s8 $30 /* same like fp! */ |
70342287 | 59 | #define ra $31 /* return address */ |
1da177e4 LT |
60 | |
61 | #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ | |
62 | ||
63 | #if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 | |
64 | ||
65 | #define zero $0 /* wired zero */ | |
66 | #define AT $at /* assembler temp - uppercase because of ".set at" */ | |
67 | #define v0 $2 /* return value - caller saved */ | |
68 | #define v1 $3 | |
69 | #define a0 $4 /* argument registers */ | |
70 | #define a1 $5 | |
71 | #define a2 $6 | |
72 | #define a3 $7 | |
73 | #define a4 $8 /* arg reg 64 bit; caller saved in 32 bit */ | |
74 | #define ta0 $8 | |
75 | #define a5 $9 | |
76 | #define ta1 $9 | |
77 | #define a6 $10 | |
78 | #define ta2 $10 | |
79 | #define a7 $11 | |
80 | #define ta3 $11 | |
81 | #define t0 $12 /* caller saved */ | |
82 | #define t1 $13 | |
83 | #define t2 $14 | |
84 | #define t3 $15 | |
85 | #define s0 $16 /* callee saved */ | |
86 | #define s1 $17 | |
87 | #define s2 $18 | |
88 | #define s3 $19 | |
89 | #define s4 $20 | |
90 | #define s5 $21 | |
91 | #define s6 $22 | |
92 | #define s7 $23 | |
93 | #define t8 $24 /* caller saved */ | |
94 | #define t9 $25 /* callee address for PIC/temp */ | |
95 | #define jp $25 /* PIC jump register */ | |
96 | #define k0 $26 /* kernel temporary */ | |
97 | #define k1 $27 | |
98 | #define gp $28 /* global pointer - caller saved for PIC */ | |
99 | #define sp $29 /* stack pointer */ | |
100 | #define fp $30 /* frame pointer */ | |
101 | #define s8 $30 /* callee saved */ | |
102 | #define ra $31 /* return address */ | |
103 | ||
104 | #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */ | |
105 | ||
106 | #endif /* _ASM_REGDEF_H */ |