NPIRQS
assert(pin > 0 && pin <= NPIRQS);
for (i = 0; i < NPIRQS; i++) {
assert(pin <= NPIRQS);
assert(pin <= NPIRQS);
for (pin = 1; pin < NPIRQS; pin++) {
assert(pin > 0 && pin <= NPIRQS);
for (pin = 0; pin < NPIRQS; pin++) {
} pirqs[NPIRQS];
assert(pin > 0 && pin <= NPIRQS);