Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/5/84; site alberta.UUCP
Path: utzoo!decvax!genrad!panda!talcott!harvard!seismo!lll-crg!qantel!ihnp4!alberta!gordon
From: gordon@alberta.UUCP (Gordon Atwood)
Newsgroups: net.micro.apple
Subject: Double Hi-res graphics, confirmation
Message-ID: <777@alberta.UUCP>
Date: Mon, 13-Jan-86 14:08:27 EST
Article-I.D.: alberta.777
Posted: Mon Jan 13 14:08:27 1986
Date-Received: Thu, 16-Jan-86 01:30:57 EST
Distribution: na
Organization: U. of Alberta, Edmonton, AB
Lines: 33

A few weeks ago I posted a request for information about the double
hi-resolution graphics.  I received varied response.  Here is the result.


1)  A highly recommended article is in Softalk Magazine.  July or Sept 1983
  issue.  One of the first things described in it is the exact Machine level
  instructions which activate the double-hi-res.


    a)  The article claims that a Rev-B motherboard is needed, and that the
      extended 80-col card must be jumpered.  This is not true.

        I have both of these and the sequence of instructions fail to work.

        A demo at a comp. store, with a Rev-A motherboard, a Rev-B 80 ext.
      col. card (jumpered), DID work.

        MORAL:  There is more to this than just revision numbers.

        My dealer, however, offers slightly modified computers, and is
      currently checking to see why my particular computer fails.  (Another
      demo, in this dealers store, does work.  I may simply have a defective
      soft switch.

    b)  I have not checked the article for additional accuracy, since I don't
      have the time to sit at a demo in a store.


2)  There is no 2.

Thank-you for the response.

G.H.A.