Lines Matching defs:z0
60 int x0, y0, z0, carry;167 z0 = x0 - y0 - carry;168 if (z0 < 0) { /* double x */174 if (z0 == 0) {182 z0 = z0 + z0 + ((z1 & is) != 0);186 x0 = z0;210 z0 = x0 - y0 - carry;211 if (z0 >= 0) {212 x0 = z0;