void f64_to_f128M( float64_t a, float128_t *zPtr )
{
uint32_t *zWPtr;
union ui64_f64 uA;
uint64_t uiA;
bool sign;
int_fast16_t exp;
uint64_t sig;
struct commonNaN commonNaN;
uint32_t uiZ96;
struct exp16_sig64 normExpSig;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
zWPtr = (uint32_t *) zPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uA.f = a;
uiA = uA.ui;
sign = signF64UI( uiA );
exp = expF64UI( uiA );
sig = fracF64UI( uiA );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
zWPtr[indexWord( 4, 0 )] = 0;
if ( exp == 0x7FF ) {
if ( sig ) {
softfloat_f64UIToCommonNaN( uiA, &commonNaN );
softfloat_commonNaNToF128M( &commonNaN, zWPtr );
return;
}
uiZ96 = packToF128UI96( sign, 0x7FFF, 0 );
goto uiZ;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! exp ) {
if ( ! sig ) {
uiZ96 = packToF128UI96( sign, 0, 0 );
goto uiZ;
}
normExpSig = softfloat_normSubnormalF64Sig( sig );
exp = normExpSig.exp - 1;
sig = normExpSig.sig;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
zWPtr[indexWord( 4, 1 )] = (uint32_t) sig<<28;
sig >>= 4;
zWPtr[indexWordHi( 4 )] = packToF128UI96( sign, exp + 0x3C00, sig>>32 );
zWPtr[indexWord( 4, 2 )] = sig;
return;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiZ:
zWPtr[indexWord( 4, 3 )] = uiZ96;
zWPtr[indexWord( 4, 2 )] = 0;
zWPtr[indexWord( 4, 1 )] = 0;
}
void extF80M_to_f128M( const extFloat80_t *aPtr, float128_t *zPtr )
{
const struct extFloat80M *aSPtr;
uint32_t *zWPtr;
uint_fast16_t uiA64;
bool sign;
int32_t exp;
uint64_t sig;
struct commonNaN commonNaN;
uint32_t uiZ96;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
zWPtr = (uint32_t *) zPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
sign = signExtF80UI64( uiA64 );
exp = expExtF80UI64( uiA64 );
sig = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
zWPtr[indexWord( 4, 0 )] = 0;
if ( exp == 0x7FFF ) {
if ( sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
softfloat_extF80MToCommonNaN( aSPtr, &commonNaN );
softfloat_commonNaNToF128M( &commonNaN, zWPtr );
return;
}
uiZ96 = packToF128UI96( sign, 0x7FFF, 0 );
goto uiZ;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( exp ) --exp;
if ( ! (sig & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sig ) {
uiZ96 = packToF128UI96( sign, 0, 0 );
goto uiZ;
}
exp += softfloat_normExtF80SigM( &sig );
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
zWPtr[indexWord( 4, 1 )] = (uint32_t) sig<<17;
sig >>= 15;
zWPtr[indexWord( 4, 2 )] = sig;
if ( exp < 0 ) {
zWPtr[indexWordHi( 4 )] = sig>>32;
softfloat_shiftRight96M(
&zWPtr[indexMultiwordHi( 4, 3 )],
-exp,
&zWPtr[indexMultiwordHi( 4, 3 )]
);
exp = 0;
sig = (uint64_t) zWPtr[indexWordHi( 4 )]<<32;
}
