FP_2
if ((r->fp_mant[0] = r0) >= FP_2) {
if (r0 < FP_2) {
if (a0 >= FP_2) {
if ((r->fp_mant[0] = r0) >= FP_2) {
if (r0 < FP_2) {
if (a0 >= FP_2) {
if ((r->fp_mant[0] = r0) >= FP_2) {
if (r0 < FP_2) {
if (a0 >= FP_2) {