IPR
#define IPR(i) (((i) < 32) ? (0x01c + ((i) << 2)) : \
#define IPR LONG_REF(IPR_ADDR)
#define IPR LONG_REF(IPR_ADDR)
#define IPR LONG_REF(IPR_ADDR)
#define IPR 0x04 /* Interrupt Pending Register */
#define IPR 0x08 /* Global interrupt pending register */
#define IPR 0x08 /* Global interrupt pending register */