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From: bryce@zen.UUCP
Newsgroups: comp.sys.amiga
Subject: Re: sprites
Message-ID: <3933@zen.berkeley.edu>
Date: Thu, 24-Sep-87 03:43:50 EDT
Article-I.D.: zen.3933
Posted: Thu Sep 24 03:43:50 1987
Date-Received: Sat, 26-Sep-87 09:57:11 EDT
Sender: news@zen.berkeley.edu
Distribution: world
Organization: Center Tapped Solids, Inc.
Lines: 27

>I've got a small problem with my sprites, and maybe someone knows the cause.
>When I run programs like Sproing! or PacMan87 instead of just the normal
>sprites, tall verticle lines attatched to the sprite appear along with some
>garbage that move along with the sprites.  They are just "flaked out."
>[why?]

Two possibilites:

1> You have an overscan Workbench, created with morerows or ScnSizer.

2> The screen centering gadget in preferences is set too far to the left.

3> Your hardware is indeed defective.

Bitplane DMA has a higher priority than sprite DMA.  In either case the
Bitplane hardware is fetching data during the sprite time.  Case #1 is a
problem only for programs that open a window on the Workbench.	Case #2 can
affect almost any program.

The system's GetSprite() call does not know how to check to see if it is
returning usable sprites.

 
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