__mpn_mul
cy = __mpn_mul (p.tmp, p.scale, p.scalesize,
cy = __mpn_mul (p.tmp, &__tens[powers->arrayoff
cy = __mpn_mul (p.tmp, p.frac, p.fracsize,
cy = __mpn_mul (pdest, psrc, numsize,
cy = __mpn_mul (pdest, &__tens[ttab->arrayoff
cy = __mpn_mul (pdest, &__tens[ttab->arrayoff