Re: A86: Re: Exiting a Program

To: assembly-86@lists.ticalc.org
Subject: Re: A86: Re: Exiting a Program
From: David Phillips <electrum@tfs.net>
Date: Sat, 12 Sep 1998 21:20:18 -0500
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <19980811.165755.3262.0.JdAoMtEyS@juno.com>
References: <029601bdde95$0fd73f60$5b10e6a5@sammy.rutgers.edu>
Reply-To: assembly-86@lists.ticalc.org

Your sprite routines *shouldn't* be corrupting the stack.  If they return
without crashing, then they are fine.  The reason is that if they were
corrupting the stack, the RET at the end would return to some bogus address
and crash.

If it only crashes when you return to the OS, then your problem is
somewhere in your main loop, not inside a subroutine.  If you corrupt the
stack in a subroutine, it will crash instead of RETurning.  You are most
likely restoring a counter at the top of a loop, and not clearing it from
the stack when the loop ends.

At 04:57 PM 8/11/98 -0500, you wrote:
>
>I know I am, but I don't know about the sprite routines that I am using. 
>Is there any nifty way to just clear the stack instead of having to track
>down what isn't popping?
>
>--James
>
>>
>>It sounds like your not popping for every time you push.
>>
>
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--
David Phillips
mailto:electrum@tfs.net
ICQ: 13811951
AOL/AIM: Electrum32

References:

From:

A86: Re: Exiting a Program

From: jdaomteys@juno.com (James Doty)

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