rshift_bits
rshift_bits(&x, norm, &x, NULL);
if ((res = rshift_bits(a, p, &q, a)) != MP_OKAY) {
if ((res = rshift_bits(a, p, &q, a)) != MP_OKAY) {
return rshift_bits(a, ix, c, NULL);
if ((err = rshift_bits(&r, s, &r, NULL)) != MP_OKAY) {
if ((res = rshift_bits(&u, k, &u, NULL)) != MP_OKAY) {
if ((res = rshift_bits(&v, k, &v, NULL)) != MP_OKAY) {
if ((res = rshift_bits(&u, u_lsb - k, &u, NULL)) != MP_OKAY) {
if ((res = rshift_bits(&v, v_lsb - k, &v, NULL)) != MP_OKAY) {
if ((res = rshift_bits(&v, mp_cnt_lsb(&v), &v, NULL)) != MP_OKAY) {
if (rshift_bits(&t, 8, &t, NULL) != MP_OKAY) {