.define rck
.sect .text
.sect .rom
.sect .data
.sect .bss
rck:
ld R0, RR14($4)
cp R0, 0(R1)
jr LT, 1f
cp R0, 2(R1)
jr LE, 2f
1: push *RR14, $ERANGE
calr trp
2: ret