Path: utzoo!attcan!uunet!mcsun!ukc!harrier.ukc.ac.uk!dac
From: dac@ukc.ac.uk (David Clear)
Newsgroups: comp.sys.atari.8bit
Subject: Re: 6502 error conditions
Message-ID: <5511@harrier.ukc.ac.uk>
Date: 22 Sep 90 14:15:15 GMT
References: <1990Sep19.171649.20159@ingres.Ingres.COM> <5501@harrier.ukc.ac.uk> <15061@rouge.usl.edu>
Reply-To: dac@ukc.ac.uk (David Clear)
Distribution: comp
Organization: Computing Lab, University of Kent at Canterbury, UK.
Lines: 27

In article <15061@rouge.usl.edu> bkd@pc.usl.edu (Dore Brian K) writes:
[ on the subject of suicide instructions ]
>There was an APRIL FOOLS JOKE about this in an Atari magazine.  It
>even had a program to type in that did some silly stuff before 
>trashing the Display List and moving the screen memory pointers 
>over some active memory area (Page 0 or something) so that the 
>display went wack.  They did get a lot of letters from people who 
>didn't get the joke.  

Well, in my defense, I heard about this with regards to an Apple (I think),
and from a 3rd party. So if he got it from a magazine, I guess he (we) are
the fools :-)

As for wacky display lists, I have seen some great special effects on the XL
and Amiga due to software crashes which trash the screen info (eg display list
pointer on the XL). In fact, I think I've probably seen more impressive
scrolling, moving graphics during crashes than I have in games!!!! Of course,
seeing your screen bounce up an down, scrolling, changing size etc,etc may
look a little out of place in most games!!! :-)

Dave (older and wiser).

-- 
% cc life.c                      | David Clear dac@ukc.ac.uk +44 227 764000x7592
% a.out                          | Local Area Networks, Computing Laboratory,
Segmentation fault (core dumped) | University of Kent, Canterbury, England.
>>> Kernel R0M. His Mission: To rid the world of wobbly ZX-81 16K RAM packs. <<<