> 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. I'm sorry if I was unclear.
> - Marcel

The hardware stack as used by C18 is all of the above (especially using the 
extended instruction set). In addition, it can, if needed, span nearly all 
of available member.

I think there is a lot of confusion between the return address stack which 
is limited and really only used for/useful for return addresses and the 
"FSR-based" stack which contains function parameters and automatic local 
variables.

-- Bob Ammerman

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist