Douglas Wood wrote:
>
> Roman,
>
> I have been programming so long in EPICIS that I had forgotten all about the
> built-in Bn macros. EPICIS has Bn instructions for ALL cores. The EPICIS
> "skip" instructions are intelligent enough to skip over ANY sized sequence
> of instructions; they have to be since most EPICIS instructions generate
> multiple "native" PIC instruction sequences. Kind of an "assembler compiler"
> if you will.
>
> However, on the topic of the "special instructions", I think it's VERY
> important that newbie PIC programmers understand fully the different between
> "real" PIC instructions and "instructions" implemented as #defines or macros
> for some of the vey reasons you gave. I think it's fairly dangerous to think
> of those instructions as real; understanding where they came from and why
> they work the way they to will [hopefully] prevent a lot of headaches down
> the road...


Absolutely right Douglas. The special mnemonics
are there for a reason, to be used in circumstances
where they can make things easier. And it is vital
that someone new to PIC understands BTFSC STATUS,Z
completely, before using anything easier. :o)

Custom mnemonics interest me, as a way of improving
the readability of the RISC instruction set and making
coding faster and more reliable. As experienced
programmers we all seem to develop tools to make life
easier, so the little guys like us are part of the
cutting-edge evolution of Microchip's product.

Speaking of that evolution, how's Epicis going?
I keep checking out your page at piclist.com but
there is never any news. From the time I first heard
about your project it caught my interest. :o)
-Roman

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