Re: A89: recursion question

To: assembly-89@lists.ticalc.org
Subject: Re: A89: recursion question
From: Xavier VASSOR - The Doors Team <doors@altern.org>
Date: Sun, 29 Nov 1998 18:47:42 +0100
Delivered-To: assembly-89-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <a7270b79.3660d44d@aol.com>
Reply-To: assembly-89@lists.ticalc.org



>here's how i think it goes with my current knowledge of asm:
>in _main: we move 1 to d0. then the value of d0 to stuff and stuff2. we jump
>to main_stuff_tests. we compare d0 with stuff.  it checks out so we jump to
>yes_stuff. there, we add 1 to stuff and jump back.  
  Here is it false, in fact you jump back to the rts in main
This is because Bcc instruction don't save a return adress before jumping.

_main:
>move.w      #1,d0
>move.w      d0,stuff
>move.w      d0,stuff2
>bsr            main_stuff_tests
You jump back HERE
>rts



Xavier VASSOR
---The Doors Team
E-mail:xvassor@mail.dotcom.fr
Doors Homepage: http://www.altern.org/doors
ICQ:10241721

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Re: A89: recursion question

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A89: recursion question

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