LIMA_BCAST_BROADCAST_MASK
int i, mask = bcast_read(LIMA_BCAST_BROADCAST_MASK) & 0xffff0000;
bcast_write(LIMA_BCAST_BROADCAST_MASK, mask);
bcast_write(LIMA_BCAST_BROADCAST_MASK, ip->data.mask << 16);
bcast_write(LIMA_BCAST_BROADCAST_MASK, 0);