Re: A89: Stupid Stack Operation Question

Re: A89: Stupid Stack Operation Question

• To: assembly-89@lists.ticalc.org
• Subject: Re: A89: Stupid Stack Operation Question
• From: Nate Mueller <nlmueller@students.wisc.edu>
• Date: Thu, 14 Jan 1999 10:35:10 -0500
• Delivered-To: assembly-89-outgoing@towerguard.unix.edu.sollentuna.se
• In-Reply-To: <Pine.GUL.4.05.9901140742110.27365-100000@coho.halcyon.com>
• Reply-To: assembly-89@lists.ticalc.org

>Why is that data added back to the stack?
>
>I know it is to correct the stack back to it's original
>position and I know how the stack operates but, doesn't 
>the called routine do that when it obtains (pops) these 
>passed parameters?  
>
>Why is correcting the stack necessary.

The system stack in asm is different then one in a HLL language.  In asm
you have acess to all values in the stack at all times.  Most programers
just read the values off the stack during a function, they do not play with
the stack pointer.  Temporary data is often stored in the stack as well.
In fact, it is a better programing method to de-allocate all of the stack
data needed for the function at once -- it makes programs much easier to
de-bug.

	--Nate

• Re: A89: Stupid Stack Operation Question
• From: "Michael S. Davis" <ipscone@halcyon.com>

• A89: Stupid Stack Operation Question
• From: "Michael S. Davis" <ipscone@halcyon.com>

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