fpregdef.h (2726B)
1/* 2 * Definitions for the FPU register names 3 * 4 * This file is subject to the terms and conditions of the GNU General Public 5 * License. See the file "COPYING" in the main directory of this archive 6 * for more details. 7 * 8 * Copyright (C) 1995, 1999 Ralf Baechle 9 * Copyright (C) 1985 MIPS Computer Systems, Inc. 10 * Copyright (C) 1990 - 1992, 1999 Silicon Graphics, Inc. 11 */ 12#ifndef _ASM_FPREGDEF_H 13#define _ASM_FPREGDEF_H 14 15#include <asm/sgidefs.h> 16 17/* 18 * starting with binutils 2.24.51.20140729, MIPS binutils warn about mixing 19 * hardfloat and softfloat object files. The kernel build uses soft-float by 20 * default, so we also need to pass -msoft-float along to GAS if it supports it. 21 * But this in turn causes assembler errors in files which access hardfloat 22 * registers. We detect if GAS supports "-msoft-float" in the Makefile and 23 * explicitly put ".set hardfloat" where floating point registers are touched. 24 */ 25#ifdef GAS_HAS_SET_HARDFLOAT 26#define SET_HARDFLOAT .set hardfloat 27#else 28#define SET_HARDFLOAT 29#endif 30 31#if _MIPS_SIM == _MIPS_SIM_ABI32 32 33/* 34 * These definitions only cover the R3000-ish 16/32 register model. 35 * But we're trying to be R3000 friendly anyway ... 36 */ 37#define fv0 $f0 /* return value */ 38#define fv0f $f1 39#define fv1 $f2 40#define fv1f $f3 41#define fa0 $f12 /* argument registers */ 42#define fa0f $f13 43#define fa1 $f14 44#define fa1f $f15 45#define ft0 $f4 /* caller saved */ 46#define ft0f $f5 47#define ft1 $f6 48#define ft1f $f7 49#define ft2 $f8 50#define ft2f $f9 51#define ft3 $f10 52#define ft3f $f11 53#define ft4 $f16 54#define ft4f $f17 55#define ft5 $f18 56#define ft5f $f19 57#define fs0 $f20 /* callee saved */ 58#define fs0f $f21 59#define fs1 $f22 60#define fs1f $f23 61#define fs2 $f24 62#define fs2f $f25 63#define fs3 $f26 64#define fs3f $f27 65#define fs4 $f28 66#define fs4f $f29 67#define fs5 $f30 68#define fs5f $f31 69 70#define fcr31 $31 /* FPU status register */ 71 72#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ 73 74#if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 75 76#define fv0 $f0 /* return value */ 77#define fv1 $f2 78#define fa0 $f12 /* argument registers */ 79#define fa1 $f13 80#define fa2 $f14 81#define fa3 $f15 82#define fa4 $f16 83#define fa5 $f17 84#define fa6 $f18 85#define fa7 $f19 86#define ft0 $f4 /* caller saved */ 87#define ft1 $f5 88#define ft2 $f6 89#define ft3 $f7 90#define ft4 $f8 91#define ft5 $f9 92#define ft6 $f10 93#define ft7 $f11 94#define ft8 $f20 95#define ft9 $f21 96#define ft10 $f22 97#define ft11 $f23 98#define ft12 $f1 99#define ft13 $f3 100#define fs0 $f24 /* callee saved */ 101#define fs1 $f25 102#define fs2 $f26 103#define fs3 $f27 104#define fs4 $f28 105#define fs5 $f29 106#define fs6 $f30 107#define fs7 $f31 108 109#define fcr31 $31 110 111#endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */ 112 113#endif /* _ASM_FPREGDEF_H */