> > Stack? Is there a stack in a 16F877A?
> 
> Yes, an internal call-stack (for subroutines), IIRC 8 words 
> deep. The user cannot read/alter it.

Ok, you are talking about the stack used for CALL's, that the CPU can
return, where it came from?

That is a good idea, since I am working with a lot of call's inside
calls ...

Best Jens

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