Marcel Birthelmer wrote:
> Specifically, I was talking about an area of memory that is made
> available also via stack instructions. push/pop is, strictly
> speaking, a hardware stack, yes. But in the context of this
> discussion (C programming, frames etc.), a stack is an area of memory
> that can be modified via stack-oriented instructions (push/pop),
> directly as memory (lda, sta), and whose address is stored in a
> special register to facilitate the latter as part of a standard ABI.

But that's exactly what a PIC 18 has.  The C18 compiler uses FSR1 as your
special register.


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