EXC_FPU
mtspr(SPR_IVOR7, EXC_FPU); /* FP unavailable */
case EXC_FPU|EXC_USER:
ksi.ksi_trap = EXC_FPU;
case EXC_FPU: trapstr = "FPU"; break;
case EXC_FPU: /* Floating point unavailable */
case EXC_FPU|EXC_USER: