Skip always? Something like btfsc PCLH, 7 ;or some other always 0 bit I think I used something like that to logical NOT a conditional skip instruction. ie incfsz reg, f skip bsf PORTB, bit So it would set the pin if reg was zero. Saved the trouble of using goto ;-) - Ben On Wed, 06 Oct 2004 21:03:55 -0600, Robert Rolf wrote: > William Chops Westfield wrote: > > Always, or Never" "Subtract One and Skip never" was sometimes used to > > decrement memory, but "skip always" was pretty useless... > > Skip always is quite useful when debugging. It allows you to > force a skip without changing the instruction size. This is > particularly useful when debugging code in RAM or where > you have very slow data link for uploading code changes. > (DDT on a TTY at 110 baud). > > Robert > > Wipe out all of memory with ONE instruction. PDP11 family. > Mov -(PC), -(PC) ;start at highest memory location. > > _______________________________________________ > http://www.piclist.com > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > _______________________________________________ http://www.piclist.com View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist