SCB_VECTOIDX
idx = SCB_VECTOIDX(vec - SCB_IOVECBASE);
idx = SCB_VECTOIDX(vec - SCB_IOVECBASE);
idx = SCB_VECTOIDX(vec - SCB_IOVECBASE);
scb = &scb_iovectab[SCB_VECTOIDX(a1 - SCB_IOVECBASE)];
struct scbvec scb_iovectab[SCB_VECTOIDX(SCB_SIZE - SCB_IOVECBASE)];
#define SCB_NIOVECS SCB_VECTOIDX(SCB_SIZE - SCB_IOVECBASE)
irq = SCB_VECTOIDX(vec - 0x900);
irq = SCB_VECTOIDX(vec - 0x900);
irq = SCB_VECTOIDX(vec - 0x900);
irq = SCB_VECTOIDX(vec - 0x900);
irq = SCB_VECTOIDX(vec - 0x900);
irq = SCB_VECTOIDX(vec - 0x900);
irq = SCB_VECTOIDX(vec - 0x900);
irq = SCB_VECTOIDX(vec - MCPCIA_VEC_PCI);
irq = SCB_VECTOIDX(vec - 0x800);