| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * Copyright (C) 1985 MIPS Computer Systems, Inc. |
| * Copyright (C) 1994, 95, 99, 2003 by Ralf Baechle |
| * Copyright (C) 1990 - 1992, 1999 Silicon Graphics, Inc. |
| * Copyright (C) 2011 Wind River Systems, |
| * written by Ralf Baechle <ralf@linux-mips.org> |
| */ |
| #ifndef _ASM_REGDEF_H |
| #define _ASM_REGDEF_H |
| |
| #include <asm/sgidefs.h> |
| |
| #if _MIPS_SIM == _MIPS_SIM_ABI32 |
| |
| /* |
| * General purpose register numbers for 32 bit ABI |
| */ |
| #define GPR_ZERO 0 /* wired zero */ |
| #define GPR_AT 1 /* assembler temp */ |
| #define GPR_V0 2 /* return value */ |
| #define GPR_V1 3 |
| #define GPR_A0 4 /* argument registers */ |
| #define GPR_A1 5 |
| #define GPR_A2 6 |
| #define GPR_A3 7 |
| #define GPR_T0 8 /* caller saved */ |
| #define GPR_T1 9 |
| #define GPR_T2 10 |
| #define GPR_T3 11 |
| #define GPR_T4 12 |
| #define GPR_TA0 12 |
| #define GPR_T5 13 |
| #define GPR_TA1 13 |
| #define GPR_T6 14 |
| #define GPR_TA2 14 |
| #define GPR_T7 15 |
| #define GPR_TA3 15 |
| #define GPR_S0 16 /* callee saved */ |
| #define GPR_S1 17 |
| #define GPR_S2 18 |
| #define GPR_S3 19 |
| #define GPR_S4 20 |
| #define GPR_S5 21 |
| #define GPR_S6 22 |
| #define GPR_S7 23 |
| #define GPR_T8 24 /* caller saved */ |
| #define GPR_T9 25 |
| #define GPR_JP 25 /* PIC jump register */ |
| #define GPR_K0 26 /* kernel scratch */ |
| #define GPR_K1 27 |
| #define GPR_GP 28 /* global pointer */ |
| #define GPR_SP 29 /* stack pointer */ |
| #define GPR_FP 30 /* frame pointer */ |
| #define GPR_S8 30 /* same like fp! */ |
| #define GPR_RA 31 /* return address */ |
| |
| #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ |
| |
| #if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 |
| |
| #define GPR_ZERO 0 /* wired zero */ |
| #define GPR_AT 1 /* assembler temp */ |
| #define GPR_V0 2 /* return value - caller saved */ |
| #define GPR_V1 3 |
| #define GPR_A0 4 /* argument registers */ |
| #define GPR_A1 5 |
| #define GPR_A2 6 |
| #define GPR_A3 7 |
| #define GPR_A4 8 /* arg reg 64 bit; caller saved in 32 bit */ |
| #define GPR_TA0 8 |
| #define GPR_A5 9 |
| #define GPR_TA1 9 |
| #define GPR_A6 10 |
| #define GPR_TA2 10 |
| #define GPR_A7 11 |
| #define GPR_TA3 11 |
| #define GPR_T0 12 /* caller saved */ |
| #define GPR_T1 13 |
| #define GPR_T2 14 |
| #define GPR_T3 15 |
| #define GPR_S0 16 /* callee saved */ |
| #define GPR_S1 17 |
| #define GPR_S2 18 |
| #define GPR_S3 19 |
| #define GPR_S4 20 |
| #define GPR_S5 21 |
| #define GPR_S6 22 |
| #define GPR_S7 23 |
| #define GPR_T8 24 /* caller saved */ |
| #define GPR_T9 25 /* callee address for PIC/temp */ |
| #define GPR_JP 25 /* PIC jump register */ |
| #define GPR_K0 26 /* kernel temporary */ |
| #define GPR_K1 27 |
| #define GPR_GP 28 /* global pointer - caller saved for PIC */ |
| #define GPR_SP 29 /* stack pointer */ |
| #define GPR_FP 30 /* frame pointer */ |
| #define GPR_S8 30 /* callee saved */ |
| #define GPR_RA 31 /* return address */ |
| |
| #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */ |
| |
| #ifdef __ASSEMBLY__ |
| #if _MIPS_SIM == _MIPS_SIM_ABI32 |
| |
| /* |
| * Symbolic register names for 32 bit ABI |
| */ |
| #define zero $0 /* wired zero */ |
| #define AT $1 /* assembler temp - uppercase because of ".set at" */ |
| #define v0 $2 /* return value */ |
| #define v1 $3 |
| #define a0 $4 /* argument registers */ |
| #define a1 $5 |
| #define a2 $6 |
| #define a3 $7 |
| #define t0 $8 /* caller saved */ |
| #define t1 $9 |
| #define t2 $10 |
| #define t3 $11 |
| #define t4 $12 |
| #define ta0 $12 |
| #define t5 $13 |
| #define ta1 $13 |
| #define t6 $14 |
| #define ta2 $14 |
| #define t7 $15 |
| #define ta3 $15 |
| #define s0 $16 /* callee saved */ |
| #define s1 $17 |
| #define s2 $18 |
| #define s3 $19 |
| #define s4 $20 |
| #define s5 $21 |
| #define s6 $22 |
| #define s7 $23 |
| #define t8 $24 /* caller saved */ |
| #define t9 $25 |
| #define jp $25 /* PIC jump register */ |
| #define k0 $26 /* kernel scratch */ |
| #define k1 $27 |
| #define gp $28 /* global pointer */ |
| #define sp $29 /* stack pointer */ |
| #define fp $30 /* frame pointer */ |
| #define s8 $30 /* same like fp! */ |
| #define ra $31 /* return address */ |
| |
| #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ |
| |
| #if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 |
| |
| #define zero $0 /* wired zero */ |
| #define AT $at /* assembler temp - uppercase because of ".set at" */ |
| #define v0 $2 /* return value - caller saved */ |
| #define v1 $3 |
| #define a0 $4 /* argument registers */ |
| #define a1 $5 |
| #define a2 $6 |
| #define a3 $7 |
| #define a4 $8 /* arg reg 64 bit; caller saved in 32 bit */ |
| #define ta0 $8 |
| #define a5 $9 |
| #define ta1 $9 |
| #define a6 $10 |
| #define ta2 $10 |
| #define a7 $11 |
| #define ta3 $11 |
| #define t0 $12 /* caller saved */ |
| #define t1 $13 |
| #define t2 $14 |
| #define t3 $15 |
| #define s0 $16 /* callee saved */ |
| #define s1 $17 |
| #define s2 $18 |
| #define s3 $19 |
| #define s4 $20 |
| #define s5 $21 |
| #define s6 $22 |
| #define s7 $23 |
| #define t8 $24 /* caller saved */ |
| #define t9 $25 /* callee address for PIC/temp */ |
| #define jp $25 /* PIC jump register */ |
| #define k0 $26 /* kernel temporary */ |
| #define k1 $27 |
| #define gp $28 /* global pointer - caller saved for PIC */ |
| #define sp $29 /* stack pointer */ |
| #define fp $30 /* frame pointer */ |
| #define s8 $30 /* callee saved */ |
| #define ra $31 /* return address */ |
| |
| #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */ |
| #endif /* __ASSEMBLY__ */ |
| |
| #endif /* _ASM_REGDEF_H */ |
