diff options
Diffstat (limited to 'softfloat/f32_div.c')
-rwxr-xr-x | softfloat/f32_div.c | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/softfloat/f32_div.c b/softfloat/f32_div.c deleted file mode 100755 index 958b140..0000000 --- a/softfloat/f32_div.c +++ /dev/null @@ -1,96 +0,0 @@ - -#include <stdbool.h> -#include <stdint.h> -#include "platform.h" -#include "internals.h" -#include "specialize.h" -#include "softfloat.h" - -float32_t f32_div( float32_t a, float32_t b ) -{ - union ui32_f32 uA; - uint_fast32_t uiA; - bool signA; - int_fast16_t expA; - uint_fast32_t sigA; - union ui32_f32 uB; - uint_fast32_t uiB; - bool signB; - int_fast16_t expB; - uint_fast32_t sigB; - bool signZ; - struct exp16_sig32 normExpSig; - int_fast16_t expZ; - uint_fast32_t sigZ; - uint_fast32_t uiZ; - union ui32_f32 uZ; - - uA.f = a; - uiA = uA.ui; - signA = signF32UI( uiA ); - expA = expF32UI( uiA ); - sigA = fracF32UI( uiA ); - uB.f = b; - uiB = uB.ui; - signB = signF32UI( uiB ); - expB = expF32UI( uiB ); - sigB = fracF32UI( uiB ); - signZ = signA ^ signB; - if ( expA == 0xFF ) { - if ( sigA ) goto propagateNaN; - if ( expB == 0xFF ) { - if ( sigB ) goto propagateNaN; - goto invalid; - } - goto infinity; - } - if ( expB == 0xFF ) { - if ( sigB ) goto propagateNaN; - goto zero; - } - if ( ! expB ) { - if ( ! sigB ) { - if ( ! ( expA | sigA ) ) goto invalid; - softfloat_raiseFlags( softfloat_flag_infinity ); - goto infinity; - } - normExpSig = softfloat_normSubnormalF32Sig( sigB ); - expB = normExpSig.exp; - sigB = normExpSig.sig; - } - if ( ! expA ) { - if ( ! sigA ) goto zero; - normExpSig = softfloat_normSubnormalF32Sig( sigA ); - expA = normExpSig.exp; - sigA = normExpSig.sig; - } - expZ = expA - expB + 0x7D; - sigA = ( sigA | 0x00800000 )<<7; - sigB = ( sigB | 0x00800000 )<<8; - if ( sigB <= ( sigA + sigA ) ) { - ++expZ; - sigA >>= 1; - } - sigZ = ( (uint_fast64_t) sigA<<32 ) / sigB; - if ( ! ( sigZ & 0x3F ) ) { - sigZ |= ( (uint_fast64_t) sigB * sigZ != (uint_fast64_t) sigA<<32 ); - } - return softfloat_roundPackToF32( signZ, expZ, sigZ ); - propagateNaN: - uiZ = softfloat_propagateNaNF32UI( uiA, uiB ); - goto uiZ; - invalid: - softfloat_raiseFlags( softfloat_flag_invalid ); - uiZ = defaultNaNF32UI; - goto uiZ; - infinity: - uiZ = packToF32UI( signZ, 0xFF, 0 ); - goto uiZ; - zero: - uiZ = packToF32UI( signZ, 0, 0 ); - uiZ: - uZ.ui = uiZ; - return uZ.f; - -} - |