Howard Winter wrote: > Personally I like to have the ISR starting at 4, because I don't like having a GOTO that's not necessary, then the initialisation, then the Main code, then > the subroutines. Hi Howard, actually placing a GOTO at ISR beginning, can cause problems on those parts (16F and lower I mean) having more than one page of code, since this could trash PCLATH *before* you save it. -- Ciao, Dario -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist