bigdivrem_single1 2594 bignum.c           return bigdivrem_single1(qds, xds, xn, 0, y);
bigdivrem_single1 2611 bignum.c               r = bigdivrem_single1(zds+yn, zds+ynzero, zn-yn, zds[zn-1], yds[ynzero]);