FPE_FLTSUB
ksi.ksi_code = FPE_FLTSUB;
ksi.ksi_code = FPE_FLTSUB;
ucode = FPE_FLTSUB;
case ATRP_FLTSUB: code = FPE_FLTSUB; break;
? (f & EN_SW_STACK_FAULT ? FPE_FLTSUB : FPE_FLTINV) \
: f & EN_SW_STACK_FAULT ? FPE_FLTSUB : 0)