Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!purdue!bu-cs!bloom-beacon!eru!luth!sunic!mcsun!ukc!edcastle!hwcs!neil
From: neil@cs.hw.ac.uk (Neil Forsyth)
Newsgroups: comp.sys.atari.st
Subject: Video pointer
Keywords: Scrolling, MMU
Message-ID: <3846@brahma.cs.hw.ac.uk>
Date: 30 Nov 89 14:59:55 GMT
Organization: Computer Science, Heriot-Watt U., Scotland
Lines: 21


Could Atari not make a pin compatible MMU chip that could replace the normal
one in the ST and give us all word alligned and segmented video RAM just like
the STE.

From looking at the circuitry I don't see how these features would require
any pinout changes. Delaying the scan and adding the extra colours to SHIFTER
would be another matter.

If Atari would make this MMU then scrolling would improve right across the
ST range.


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! Neil Forsyth                       JANET:  neil@uk.ac.hw.cs                 !
! Dept. of Computer Science          ARPA:   neil@cs.hw.ac.uk                 !
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