BCM2835_INT_BASICBASE
#define BCM2835_INT_ARMTIMER (BCM2835_INT_BASICBASE + 0)
#define BCM2835_INT_ARMMAILBOX (BCM2835_INT_BASICBASE + 1)
#define BCM2835_INT_ARMDOORBELL0 (BCM2835_INT_BASICBASE + 2)
#define BCM2835_INT_ARMDOORBELL1 (BCM2835_INT_BASICBASE + 3)
#define BCM2835_INT_GPU0HALTED (BCM2835_INT_BASICBASE + 4)
#define BCM2835_INT_GPU1HALTED (BCM2835_INT_BASICBASE + 5)
#define BCM2835_INT_ILLEGALTYPE0 (BCM2835_INT_BASICBASE + 6)
#define BCM2835_INT_ILLEGALTYPE1 (BCM2835_INT_BASICBASE + 7)
BCM2835_INT_BASICBASE - BCM2835_INT_BASE, armirq);
base = BCM2835_INT_BASICBASE;