Olin Lathrop wrote:

> Using a high level language, particularly in the ISR, is a bad idea
> especially when you're not clear what is really going on.  Many people
> here, including me, always say to do your first few PIC projects in
> assembler until you have a solid understanding of the machine and the
> instruction set. Only then should you be allowed to use a high level
> language.  

> (take a look at the generated instructions some time)

I think the second advice can somewhat mellow out the first, rather harsh
statement. I'd put it this way: don't use a HLL to the point where you
don't understand the assembler code it generates. If there's something in
the behavior that you don't understand, look at the generated assembler and
make sure you understand it and it does (or at least seems to do) what you
meant the HLL code to do. Treat the compiler as an assembler generator, and
consider the generated assembler also, not only the written HLL code. 

Gerhard

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