uint_fast32_t
f128_to_ui32( float128_t a, uint_fast8_t roundingMode, bool exact )
{
union ui128_f128 uA;
uint_fast64_t uiA64, uiA0;
bool sign;
int_fast32_t exp;
uint_fast64_t sig64;
int_fast32_t shiftDist;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uA.f = a;
uiA64 = uA.ui.v64;
uiA0 = uA.ui.v0;
sign = signF128UI64( uiA64 );
exp = expF128UI64( uiA64 );
sig64 = fracF128UI64( uiA64 ) | (uiA0 != 0);
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
#if (ui32_fromNaN != ui32_fromPosOverflow) || (ui32_fromNaN != ui32_fromNegOverflow)
if ( (exp == 0x7FFF) && sig64 ) {
#if (ui32_fromNaN == ui32_fromPosOverflow)
sign = 0;
#elif (ui32_fromNaN == ui32_fromNegOverflow)
sign = 1;
#else
softfloat_raiseFlags( softfloat_flag_invalid );
return ui32_fromNaN;
#endif
}
#endif
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( exp ) sig64 |= UINT64_C( 0x0001000000000000 );
shiftDist = 0x4023 - exp;
if ( 0 < shiftDist ) {
sig64 = softfloat_shiftRightJam64( sig64, shiftDist );
}
return softfloat_roundToUI32( sign, sig64, roundingMode, exact );
}
uint_fast32_t f64_to_ui32( float64_t a, uint_fast8_t roundingMode, bool exact )
{
union ui64_f64 uA;
uint_fast64_t uiA;
bool sign;
int_fast16_t exp;
uint_fast64_t sig;
int_fast16_t shiftDist;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uA.f = a;
uiA = uA.ui;
sign = signF64UI( uiA );
exp = expF64UI( uiA );
sig = fracF64UI( uiA );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
#if (ui32_fromNaN != ui32_fromPosOverflow) || (ui32_fromNaN != ui32_fromNegOverflow)
if ( (exp == 0x7FF) && sig ) {
#if (ui32_fromNaN == ui32_fromPosOverflow)
sign = 0;
#elif (ui32_fromNaN == ui32_fromNegOverflow)
sign = 1;
#else
softfloat_raiseFlags( softfloat_flag_invalid );
return ui32_fromNaN;
#endif
}
#endif
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( exp ) sig |= UINT64_C( 0x0010000000000000 );
shiftDist = 0x427 - exp;
if ( 0 < shiftDist ) sig = softfloat_shiftRightJam64( sig, shiftDist );
return softfloat_roundToUI32( sign, sig, roundingMode, exact );
}
