bcast_write
bcast_write(LIMA_BCAST_BROADCAST_MASK, mask);
bcast_write(LIMA_BCAST_BROADCAST_MASK, ip->data.mask << 16);
bcast_write(LIMA_BCAST_INTERRUPT_MASK, ip->data.mask);
bcast_write(LIMA_BCAST_BROADCAST_MASK, 0);
bcast_write(LIMA_BCAST_INTERRUPT_MASK, 0);