#ifndef SOFT_FP_H #define SOFT_FP_H #include "sfp-machine.h" #define _FP_WORKBITS 3 #define _FP_WORK_LSB ((_FP_W_TYPE)1 << 3) #define _FP_WORK_ROUND ((_FP_W_TYPE)1 << 2) #define _FP_WORK_GUARD ((_FP_W_TYPE)1 << 1) #define _FP_WORK_STICKY ((_FP_W_TYPE)1 << 0) #ifndef FP_RND_NEAREST # define FP_RND_NEAREST 0 # define FP_RND_ZERO 1 # define FP_RND_PINF 2 # define FP_RND_MINF 3 # define FP_ROUNDMODE FP_RND_NEAREST #endif #define _FP_ROUND_NEAREST(wc, X) \ do { \ if ((_FP_FRAC_LOW_##wc(X) & 15) != _FP_WORK_ROUND) \ _FP_FRAC_ADDI_##wc(X, _FP_WORK_ROUND); \ } while(0) #define _FP_ROUND_ZERO(wc, X) #define _FP_ROUND_PINF(wc, X) \ do { \ if (!X##_s && (_FP_FRAC_LOW_##wc(X) & 7)) \ _FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); \ } while (0) #define _FP_ROUND_MINF(wc, X) \ do { \ if (X##_s && (_FP_FRAC_LOW_##wc(X) & 7)) \ _FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); \ } while (0) #define _FP_ROUND(wc, X) \ switch (FP_ROUNDMODE) \ { \ case FP_RND_NEAREST: \ _FP_ROUND_NEAREST(wc,X); \ break; \ case FP_RND_ZERO: \ _FP_ROUND_ZERO(wc,X); \ break; \ case FP_RND_PINF: \ _FP_ROUND_PINF(wc,X); \ break; \ case FP_RND_MINF: \ _FP_ROUND_MINF(wc,X); \ break; \ } #define FP_CLS_NORMAL 0 #define FP_CLS_ZERO 1 #define FP_CLS_INF 2 #define FP_CLS_NAN 3 #define _FP_CLS_COMBINE(x,y) (((x) << 2) | (y)) #include "op-1.h" #include "op-2.h" #include "op-4.h" #include "op-common.h" /* Sigh. Silly things longlong.h needs. */ #define UWtype _FP_W_TYPE #define W_TYPE_SIZE _FP_W_TYPE_SIZE typedef int SItype __attribute__((mode(SI))); typedef int DItype __attribute__((mode(DI))); typedef unsigned int USItype __attribute__((mode(SI))); typedef unsigned int UDItype __attribute__((mode(DI))); #if _FP_W_TYPE_SIZE == 32 typedef unsigned int UHWtype __attribute__((mode(HI))); #elif _FP_W_TYPE_SIZE == 64 typedef USItype UHWtype; #endif #endif