1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Definitions for the FPU register names 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * This file is subject to the terms and conditions of the GNU General Public 5*4882a593Smuzhiyun * License. See the file "COPYING" in the main directory of this archive 6*4882a593Smuzhiyun * for more details. 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * Copyright (C) 1995, 1999 Ralf Baechle 9*4882a593Smuzhiyun * Copyright (C) 1985 MIPS Computer Systems, Inc. 10*4882a593Smuzhiyun * Copyright (C) 1990 - 1992, 1999 Silicon Graphics, Inc. 11*4882a593Smuzhiyun */ 12*4882a593Smuzhiyun #ifndef _ASM_FPREGDEF_H 13*4882a593Smuzhiyun #define _ASM_FPREGDEF_H 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun #include <asm/sgidefs.h> 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun /* 18*4882a593Smuzhiyun * starting with binutils 2.24.51.20140729, MIPS binutils warn about mixing 19*4882a593Smuzhiyun * hardfloat and softfloat object files. The kernel build uses soft-float by 20*4882a593Smuzhiyun * default, so we also need to pass -msoft-float along to GAS if it supports it. 21*4882a593Smuzhiyun * But this in turn causes assembler errors in files which access hardfloat 22*4882a593Smuzhiyun * registers. We detect if GAS supports "-msoft-float" in the Makefile and 23*4882a593Smuzhiyun * explicitly put ".set hardfloat" where floating point registers are touched. 24*4882a593Smuzhiyun */ 25*4882a593Smuzhiyun #ifdef GAS_HAS_SET_HARDFLOAT 26*4882a593Smuzhiyun #define SET_HARDFLOAT .set hardfloat 27*4882a593Smuzhiyun #else 28*4882a593Smuzhiyun #define SET_HARDFLOAT 29*4882a593Smuzhiyun #endif 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun #if _MIPS_SIM == _MIPS_SIM_ABI32 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun /* 34*4882a593Smuzhiyun * These definitions only cover the R3000-ish 16/32 register model. 35*4882a593Smuzhiyun * But we're trying to be R3000 friendly anyway ... 36*4882a593Smuzhiyun */ 37*4882a593Smuzhiyun #define fv0 $f0 /* return value */ 38*4882a593Smuzhiyun #define fv0f $f1 39*4882a593Smuzhiyun #define fv1 $f2 40*4882a593Smuzhiyun #define fv1f $f3 41*4882a593Smuzhiyun #define fa0 $f12 /* argument registers */ 42*4882a593Smuzhiyun #define fa0f $f13 43*4882a593Smuzhiyun #define fa1 $f14 44*4882a593Smuzhiyun #define fa1f $f15 45*4882a593Smuzhiyun #define ft0 $f4 /* caller saved */ 46*4882a593Smuzhiyun #define ft0f $f5 47*4882a593Smuzhiyun #define ft1 $f6 48*4882a593Smuzhiyun #define ft1f $f7 49*4882a593Smuzhiyun #define ft2 $f8 50*4882a593Smuzhiyun #define ft2f $f9 51*4882a593Smuzhiyun #define ft3 $f10 52*4882a593Smuzhiyun #define ft3f $f11 53*4882a593Smuzhiyun #define ft4 $f16 54*4882a593Smuzhiyun #define ft4f $f17 55*4882a593Smuzhiyun #define ft5 $f18 56*4882a593Smuzhiyun #define ft5f $f19 57*4882a593Smuzhiyun #define fs0 $f20 /* callee saved */ 58*4882a593Smuzhiyun #define fs0f $f21 59*4882a593Smuzhiyun #define fs1 $f22 60*4882a593Smuzhiyun #define fs1f $f23 61*4882a593Smuzhiyun #define fs2 $f24 62*4882a593Smuzhiyun #define fs2f $f25 63*4882a593Smuzhiyun #define fs3 $f26 64*4882a593Smuzhiyun #define fs3f $f27 65*4882a593Smuzhiyun #define fs4 $f28 66*4882a593Smuzhiyun #define fs4f $f29 67*4882a593Smuzhiyun #define fs5 $f30 68*4882a593Smuzhiyun #define fs5f $f31 69*4882a593Smuzhiyun 70*4882a593Smuzhiyun #define fcr31 $31 /* FPU status register */ 71*4882a593Smuzhiyun 72*4882a593Smuzhiyun #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ 73*4882a593Smuzhiyun 74*4882a593Smuzhiyun #if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 75*4882a593Smuzhiyun 76*4882a593Smuzhiyun #define fv0 $f0 /* return value */ 77*4882a593Smuzhiyun #define fv1 $f2 78*4882a593Smuzhiyun #define fa0 $f12 /* argument registers */ 79*4882a593Smuzhiyun #define fa1 $f13 80*4882a593Smuzhiyun #define fa2 $f14 81*4882a593Smuzhiyun #define fa3 $f15 82*4882a593Smuzhiyun #define fa4 $f16 83*4882a593Smuzhiyun #define fa5 $f17 84*4882a593Smuzhiyun #define fa6 $f18 85*4882a593Smuzhiyun #define fa7 $f19 86*4882a593Smuzhiyun #define ft0 $f4 /* caller saved */ 87*4882a593Smuzhiyun #define ft1 $f5 88*4882a593Smuzhiyun #define ft2 $f6 89*4882a593Smuzhiyun #define ft3 $f7 90*4882a593Smuzhiyun #define ft4 $f8 91*4882a593Smuzhiyun #define ft5 $f9 92*4882a593Smuzhiyun #define ft6 $f10 93*4882a593Smuzhiyun #define ft7 $f11 94*4882a593Smuzhiyun #define ft8 $f20 95*4882a593Smuzhiyun #define ft9 $f21 96*4882a593Smuzhiyun #define ft10 $f22 97*4882a593Smuzhiyun #define ft11 $f23 98*4882a593Smuzhiyun #define ft12 $f1 99*4882a593Smuzhiyun #define ft13 $f3 100*4882a593Smuzhiyun #define fs0 $f24 /* callee saved */ 101*4882a593Smuzhiyun #define fs1 $f25 102*4882a593Smuzhiyun #define fs2 $f26 103*4882a593Smuzhiyun #define fs3 $f27 104*4882a593Smuzhiyun #define fs4 $f28 105*4882a593Smuzhiyun #define fs5 $f29 106*4882a593Smuzhiyun #define fs6 $f30 107*4882a593Smuzhiyun #define fs7 $f31 108*4882a593Smuzhiyun 109*4882a593Smuzhiyun #define fcr31 $31 110*4882a593Smuzhiyun 111*4882a593Smuzhiyun #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */ 112*4882a593Smuzhiyun 113*4882a593Smuzhiyun #endif /* _ASM_FPREGDEF_H */ 114