My first (unsuccessful) attempt to locate some routines on Page 1 and to call them from Page 0 has sent me scrambling for the datasheets and whatever other online resources I could find. There seems be a variety of approaches to the PCLATH issue, most of which have confused the daylights out of me. Perhaps someday I'll be up to the more sophisticated techniques (macros, etc.), but for now, could I not just make every single CALL in my program an LCALL and call it good? Would that work, or would that cause the PIC's PC to go on some unwanted long-call sallies? As always, I would extremely grateful for any and all guidance. Rob Robson -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu