select_point
select_point(bits, 16, g_pre_comp[1], tmp);
select_point(bits, 16, g_pre_comp[0], tmp);
select_point(digit, 17, pre_comp[num], tmp);
select_point(bits, 16, g_pre_comp[1], tmp);
select_point(bits, 16, g_pre_comp[0], tmp);
select_point(digit, 17, pre_comp[num], tmp);
select_point(bits, 16, g_pre_comp, tmp);
select_point(digit, 17, pre_comp[num], tmp);
select_point(bits, 16, g_pre_comp, tmp);
select_point(digit, 17, pre_comp[num], tmp);