scb_set
void scb_set(u_long, void (*)(void *, u_long), void *);
scb_set(vec, scb_func, jih);
scb_set(0x800 + SCB_IDXTOVEC(irq), jensenio_iointr, NULL);
scb_set(pc->pc_vecbase + SCB_IDXTOVEC(irq),
scb_set(pc->pc_vecbase + SCB_IDXTOVEC(irq),
scb_set(MCPCIA_VEC_PCI + SCB_IDXTOVEC(irq), kn300_iointr, NULL);
scb_set(vec, scb_func, arg);
scb_set(pc->pc_vecbase + SCB_IDXTOVEC(irq),
scb_set(0x800 + SCB_IDXTOVEC(irq), sio_iointr, NULL);
scb_set(0x800, iointr, NULL);