> The '877 has an instruction set that isn't particularly different from > the rest of the PIC's. How do you know? My f877 datasheet does not list the instructions in detail! Any source for knowing whether the 87x's do (officially) support tris? Wouter van Ooijen Van Ooijen Technische Informatica: http://www.voti.nl Jal compiler for PIC uC's: http://www.voti.nl/jal PICs kopen? http://www.voti.nl/shop -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu