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From: brownc@utah-cs.UUCP (Eric C. Brown)
Newsgroups: net.micro
Subject: Re: hi res graphics for the Z-120?
Message-ID: <2358@utah-cs.UUCP>
Date: Tue, 3-Jan-84 11:11:24 EST
Article-I.D.: utah-cs.2358
Posted: Tue Jan  3 11:11:24 1984
Date-Received: Wed, 4-Jan-84 03:39:09 EST
References: noscvax.301
Lines: 13

Well, you *can* create 640x480 resolution graphics on the Z-100 series 
machines, but you suffer from the fact that the display must be interlaced,
which produces very noticeable flicker, especially when certain patterns are
displayed.  Here at the University of Utah, we have created a program to set
up interlaced mode, but there are certain problems with interlaced mode 
besides the flicker.  Zenith does not currently support interlaced mode, so 
all of the current software does not work, including the screen support 
software, so you can't display text on the screen correctly unless you are 
willing to write your own text handler.

		Eric C. Brown

		...!harpo!utah-cs!brownc