vfp_double_packed_exponent
s->exponent = vfp_double_packed_exponent(val);
if (vfp_double_packed_exponent(m) == 2047 && vfp_double_packed_mantissa(m)) {
if (vfp_double_packed_exponent(d) == 2047 && vfp_double_packed_mantissa(d)) {