go to ld 22 and prt cequ first to see if you have anything next to the SUPL prompt. You're looking for Vxxx, where xxx is the loop number
if you don't have any loop preceeding with a v, go to LD 97 and create yourself a new virtual loop. Start with loop 96 if you're on a cs1ks or if you're on a cs1ke, start with the highest number loop...somthing in the 15x area...just make sure the number is divisiable by 4