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. 9 */ 10#ifndef _ASM_REGDEF_H 11#define _ASM_REGDEF_H 12 13#include <asm/sgidefs.h> 14 15#if _MIPS_SIM == _MIPS_SIM_ABI32 16 17/* 18 * Symbolic register names for 32 bit ABI 19 */ 20#define zero $0 /* wired zero */ 21#define AT $1 /* assembler temp - uppercase because of ".set at" */ 22#define v0 $2 /* return value */ 23#define v1 $3 24#define a0 $4 /* argument registers */ 25#define a1 $5 26#define a2 $6 27#define a3 $7 28#define t0 $8 /* caller saved */ 29#define t1 $9 30#define t2 $10 31#define t3 $11 32#define t4 $12 33#define t5 $13 34#define t6 $14 35#define t7 $15 36#define s0 $16 /* callee saved */ 37#define s1 $17 38#define s2 $18 39#define s3 $19 40#define s4 $20 41#define s5 $21 42#define s6 $22 43#define s7 $23 44#define t8 $24 /* caller saved */ 45#define t9 $25 46#define jp $25 /* PIC jump register */ 47#define k0 $26 /* kernel scratch */ 48#define k1 $27 49#define gp $28 /* global pointer */ 50#define sp $29 /* stack pointer */ 51#define fp $30 /* frame pointer */ 52#define s8 $30 /* same like fp! */ 53#define ra $31 /* return address */ 54 55#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ 56 57#if ((_MIPS_SIM == _MIPS_SIM_ABI64) || (_MIPS_SIM == _MIPS_SIM_NABI32)) 58 59#define zero $0 /* wired zero */ 60#define AT $at /* assembler temp - uppercase because of ".set at" */ 61#define v0 $2 /* return value - caller saved */ 62#define v1 $3 63#define a0 $4 /* argument registers */ 64#define a1 $5 65#define a2 $6 66#define a3 $7 67#define a4 $8 /* arg reg 64 bit; caller saved in 32 bit */ 68#define ta0 $8 69#define a5 $9 70#define ta1 $9 71#define a6 $10 72#define ta2 $10 73#define a7 $11 74#define ta3 $11 75#define t0 $12 /* caller saved */ 76#define t1 $13 77#define t2 $14 78#define t3 $15 79#define s0 $16 /* callee saved */ 80#define s1 $17 81#define s2 $18 82#define s3 $19 83#define s4 $20 84#define s5 $21 85#define s6 $22 86#define s7 $23 87#define t8 $24 /* caller saved */ 88#define t9 $25 /* callee address for PIC/temp */ 89#define jp $25 /* PIC jump register */ 90#define k0 $26 /* kernel temporary */ 91#define k1 $27 92#define gp $28 /* global pointer - caller saved for PIC */ 93#define sp $29 /* stack pointer */ 94#define fp $30 /* frame pointer */ 95#define s8 $30 /* callee saved */ 96#define ra $31 /* return address */ 97 98#endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */ 99 100#endif /* _ASM_REGDEF_H */ 101