Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!haven!udel!new
From: new@udel.edu (Darren New)
Newsgroups: comp.sys.amiga
Subject: Re: Overscan verses Sprites (Was: ghost)
Keywords: sprite problem (?)
Message-ID: <1161@nigel.udel.EDU>
Date: 10 Oct 89 03:27:33 GMT
References: <13370@nsc.nsc.com> <3931@abaa.UUCP>
Sender: usenet@udel.EDU
Reply-To: new@udel.edu (Darren New)
Organization: University of Delaware
Lines: 8


The problem is that the chip that DMA's the memory for the screen
has only a limited number of fetches it can perform during HBlank.
If you have a screen too wide, it will need to fetch playfield bits before
all the Sprite bits are fetched, giving garbage in the final sprites.
I think this is Agnus (Angus?).  I don't think it can be solved
w/o speeding up or widening the memory.  -- Darren
(But then, what do I know?)