TRAPTR_OFFSET
ld [scr1 + TRAPTR_OFFSET], scr1; \
ld [scr2 + TRAPTR_OFFSET], scr1; \
st scr1, [scr2 + TRAPTR_OFFSET];
ld [scr1 + TRAPTR_OFFSET], scr1; \
ld [scr2 + TRAPTR_OFFSET], scr1; \
st scr1, [scr2 + TRAPTR_OFFSET];