Function normalizeFloatx80Subnormal

src/softfloat/softfloat.cpp:1055–1066

*----------------------------------------------------------------------------*/

void normalizeFloatx80Subnormal( uint64_t aSig, int32_t *zExpPtr, uint64_t *zSigPtr )
{
    int8_t shiftCount;

    shiftCount = countLeadingZeros64( aSig );
    *zSigPtr = aSig<<shiftCount;
#ifdef SOFTFLOAT_68K
	*zExpPtr = -shiftCount;
#else
	*zExpPtr = 1 - shiftCount;
#endif
}

/*----------------------------------------------------------------------------
| Packs the sign `zSign', exponent `zExp', and significand `zSig' into an