>Delay500
>     movlw       -(.500/6)     ;desired delay / loop delay
>
>Delay500Loop
>     xorlw       0xFF            ;1's complement W
>     addwf       FSR,W           ;2's complement W
>     subwf       FSR,W
>     skpz                        ;W wrap to 0?
>       goto      Delay500Loop    ;loop is 6 instructions

I've seen this before somewhere, but it's still neat.  But, since nearly all
of my projects (and I'm sure others, too) use "temp" registers for
calculations, counters, etc., I would be surprised if one file couldn't be
freed for use with a standard delay loop.  Plus, you could reduce the
program memory by over 1/2.

Also, note that the routine above is limited to 256 times through the loop.
The more delay you need, the more program memory is required due to NOPs.

--Andrew

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