> When my Prog makes a call to 1793  PCL = 0 and PCLATH also
> equals 0.  If I execute the next ADDWF PCL,f  it jumps back
> to the start of the program.  If I manual set PCLATH to 7 in
> the SIM all goes as expected.
>
> Why does PCLATH not change on the screen when it is another
> boundary. Is MPLAB going astray?

I think you confuse PCLATH with the upper bits of the program counter.
PCLATH will change *only* when you make it do so, not by program
execution crossing a 256-instruction border.

Wouter van Ooijen

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