Tim Webb wrote: > This example might work except that I don't have the SKPDC and SKPNDC > instructions on the 16F877 Yes, you do. Those are the "built-in MPASM macros" I mentioned before. Read the MPASM manual, or search the piclist archives for "pseudo-op". -Andy === Andrew Warren -- aiw@cypress.com === Principal Design Engineer === Cypress Semiconductor Corporation === === Opinions expressed above do not === necessarily represent those of === Cypress Semiconductor Corporation -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu