bpb_get_BytesPerSec
if (VALID_SECSIZE(bpb_get_BytesPerSec(bpb))) {
mdb_printf(" : %hu", bpb_get_BytesPerSec(bpb));
if (VALID_SECSIZE(bpb_get_BytesPerSec(mbr->bootinst))) {
sector_size = bpb_get_BytesPerSec(mbr->bootinst);
secsize = bpb_get_BytesPerSec(bpb);