HF_HINT_IARB
SCR_JUMPR ^ IFFALSE (MASK (HF_HINT_IARB, HF_HINT_IARB)),
SCR_JUMPR ^ IFFALSE (MASK (HF_HINT_IARB, HF_HINT_IARB)),
np->last_cp->host_flags |= HF_HINT_IARB;
cp->host_flags &= ~HF_HINT_IARB;