EXC_PIT
{ EXC_PIT, pitfitwdog, (uintptr_t)&pitfitwdogsize },
mtspr(SPR_IVOR10, EXC_PIT); /* decrementer -> PIT stub */
case EXC_PIT: trapstr = "PIT"; break;
case EXC_PIT: /* 40x - Programmable interval timer */