Matt Marsh <PICLIST@mitvma.mit.edu> wrote:

> Also, some of the techniques that this book teaches are a little
> dubious in places. For example, when saving the state of the STATUS
> register on an interrupt, it just uses movf instructions instead of
> swapf.

    That's perfectly ok.  If the interrupt-service routine ends in
    the usual way (by restoring STATUS and then restoring W), then
    SWAPF is only required when restoring W.

    -Andy

=== Andrew Warren -- aiw@cypress.com
=== Principal Design Engineer
=== Cypress Semiconductor Corporation
===
=== Opinions expressed above do not
=== necessarily represent those of
=== Cypress Semiconductor Corporation

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