Hi again Tony.

> Just mucking around with code and the PIC does not seem to like this
> combination. Weird things start happening.
>
>         incf FSR
>         bcf FSR,7
>         bsf FSR,6
>
> I'm trying to keep the FSR value between 0x40 and 0xFF

To get into 0x40..0xFF,0x40.. you can use the following:

        incfsz  FSR,F
        btfss   FSR,7
        bsf     FSR,6

You don't have to preload(initialize) FSR in this case.
Also you don't change _Z flag with this sequence.

WBR Dmitry.