signed_divide_word
if ((err = signed_divide_word(a, ltm_prime_tab[ix], NULL, &res)) != MP_OKAY) {
if ((res = signed_divide_word(&t, (mp_digit) radix, &t, &d)) != MP_OKAY) {
if ((res = signed_divide_word(&t, (mp_digit) radix, &t, &d)) != MP_OKAY) {