Brooke Clarke wrote:
> You found it.  I had commented out the bcf PORTB,7 but NOT the preceding 
> code related to testing for it's need causing the btfsc STATUS,Z to skip 
> over the crucial instruction  movf  PCLATH_TEMP,W which causes a lot of 
> program damage.

Oh, I do that sort of thing a lot. My debugging sessions usually go something 
like this:
   1. Comment out an instruction after a BTFSx, without commenting out the 
BTFSx itself. For bonus points, make a few more changes at the same time.
   2. Wonder why the code stopped working
   3. Scratch head a few times and scan through the code looking for obvious 
mistakes. Completely miss the BTFSx followed by a comment
   4. Tear out some hair, read through the code again
   5. Go off and have a cup of tea/coffee/Vitacoco depending on mood
   6. Return and find the cursor sitting on the commented out instruction 
after the BTFSx
   7. Comment out the BTFSx
   8. Everything works again.
   9. Break something else
  10. Continue from step 2. Rinse, repeat as necessary.

> THANKS very much,

No thanks necessary :)

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