normalizeRoundAndPackFloat32( flag zSign, int16 zExp, bits32 zSig )
normalizeRoundAndPackFloat32( struct roundingData *roundData, flag zSign, int16 zExp, bits32 zSig )
 normalizeRoundAndPackFloat32( flag zSign, int16 zExp, bits32 zSig ){    int8 shiftCount;    shiftCount = countLeadingZeros32( zSig ) - 1;    return roundAndPackFloat32( zSign, zExp - shiftCount, zSig<<shiftCount );}