| 1 | /* Copyright (C) 1997-2024 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library. If not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | #ifndef _SYS_REGDEF_H |
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| 19 | #define _SYS_REGDEF_H |
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| 20 | |
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| 21 | #include <sgidefs.h> |
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| 22 | |
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| 23 | /* |
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| 24 | * Symbolic register names for 32 bit ABI |
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| 25 | */ |
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| 26 | #define zero $0 /* wired zero */ |
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| 27 | #define AT $1 /* assembler temp - uppercase because of ".set at" */ |
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| 28 | #define v0 $2 /* return value */ |
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| 29 | #define v1 $3 |
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| 30 | #define a0 $4 /* argument registers */ |
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| 31 | #define a1 $5 |
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| 32 | #define a2 $6 |
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| 33 | #define a3 $7 |
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| 34 | #if _MIPS_SIM != _ABIO32 |
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| 35 | #define a4 $8 |
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| 36 | #define a5 $9 |
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| 37 | #define a6 $10 |
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| 38 | #define a7 $11 |
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| 39 | #define t0 $12 |
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| 40 | #define t1 $13 |
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| 41 | #define t2 $14 |
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| 42 | #define t3 $15 |
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| 43 | #define ta0 a4 |
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| 44 | #define ta1 a5 |
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| 45 | #define ta2 a6 |
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| 46 | #define ta3 a7 |
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| 47 | #else /* if _MIPS_SIM == _ABIO32 */ |
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| 48 | #define t0 $8 /* caller saved */ |
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| 49 | #define t1 $9 |
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| 50 | #define t2 $10 |
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| 51 | #define t3 $11 |
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| 52 | #define t4 $12 |
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| 53 | #define t5 $13 |
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| 54 | #define t6 $14 |
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| 55 | #define t7 $15 |
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| 56 | #define ta0 t4 |
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| 57 | #define ta1 t5 |
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| 58 | #define ta2 t6 |
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| 59 | #define ta3 t7 |
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| 60 | #endif /* _MIPS_SIM == _ABIO32 */ |
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| 61 | #define s0 $16 /* callee saved */ |
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| 62 | #define s1 $17 |
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| 63 | #define s2 $18 |
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| 64 | #define s3 $19 |
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| 65 | #define s4 $20 |
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| 66 | #define s5 $21 |
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| 67 | #define s6 $22 |
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| 68 | #define s7 $23 |
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| 69 | #define t8 $24 /* caller saved */ |
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| 70 | #define t9 $25 |
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| 71 | #define jp $25 /* PIC jump register */ |
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| 72 | #define k0 $26 /* kernel scratch */ |
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| 73 | #define k1 $27 |
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| 74 | #define gp $28 /* global pointer */ |
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| 75 | #define sp $29 /* stack pointer */ |
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| 76 | #define fp $30 /* frame pointer */ |
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| 77 | #define s8 $30 /* same like fp! */ |
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| 78 | #define ra $31 /* return address */ |
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| 79 | |
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| 80 | #endif /* _SYS_REGDEF_H */ |
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| 81 | |
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