> It is a skip on zero.  It is documented on page 248 of the assembler manual
> http://ww1.microchip.com/downloads/en/DeviceDoc/MPASM_&_MPLINK_33014h.pdf
> bill

> >Probably a noob question, but anyway...

Something no one has mentioned, but probably should, considering
that someone who didn't know the answer to this question may not
know the fact I'm going to bring up, is:

You can't (can't can't can't)(mustn't) use these pseudoinstructions
as follows:

btfss   BOB, thumb
skpz   RALPH
....

Intuitively, it looks like if BOB has 'thumb' set, we shouldn't check
to see if RALPH is zero or not.  In practice, when you assemble this
code, MPASM (or whatever assembler you're using) is going to
expand that skpz macro to its constituent code, and you'll be left
skipping only the first instruction of that macro.  I don't know if
the assembler will gripe about that or not, but do take note of it!

Sequential skpz/skpnz pseudoinstructions have the same limitation.
I've heard people say that they don't use pseudoinstructions to avoid
this kind of pitfall (i.e., getting caught in the "why won't my code
work" trap, when it LOOKS fine).

Mike H.

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