TRAPTR_LIMIT
cmpq TRAPTR_LIMIT(scr1), scr2; \
cmpl TRAPTR_LIMIT(scr1), scr2; \
ld [scr1 + TRAPTR_LIMIT], scr2; \
ld [scr1 + TRAPTR_LIMIT], ptr; \
ld [scr2 + TRAPTR_LIMIT], scr3; \
ld [scr1 + TRAPTR_LIMIT], ptr; \
ld [scr2 + TRAPTR_LIMIT], scr3; \