Yes. It is an extended so-called built-in macro instruction used by both Microchip and Parallax assembler. I like it. Compiles following manner: BTFSS STATUS,Z GOTO label There is a lot of another stuff here (BZ, BC, BNC). Of course, it is FATAL to prepend a BTFSS, BTFSC, DECFSZ, INCFSZ, because then it effects only the first half of the showed statement. I hope I helped. Imre On Mon, 15 Jun 1998, Matthew J. Ancona wrote: > Does anyone know of this instruction? > >