NNEXSBI
#define NNEX750 NNEXSBI
#define NNEX780 NNEXSBI
#define NNEX730 NNEXSBI
for (nexnum = 0; nexnum < NNEXSBI; nexnum++) {
minnex = aa->aa_num * NNEXSBI;
for (nexnum = minnex; nexnum < minnex + NNEXSBI; nexnum++) {