Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!seismo!lll-crg!lll-lcc!well!hoptoad!gnu
From: gnu@hoptoad.uucp (John Gilmore)
Newsgroups: net.micro.amiga
Subject: Re: flicker
Message-ID: <950@hoptoad.uucp>
Date: Mon, 4-Aug-86 03:45:08 EDT
Article-I.D.: hoptoad.950
Posted: Mon Aug  4 03:45:08 1986
Date-Received: Mon, 4-Aug-86 18:47:31 EDT
References: <829@edison.UUCP>
Organization: Nebula Consultants in San Francisco
Lines: 25

In article <829@edison.UUCP>, dca@edison.UUCP (David C. Albrecht) writes:
> I have had my Amiga since May...
> I'm interested in doing a feasability study on circuitry
> to suppress the flicker...               ...As the memory is
> running flat out during the display period just doing screen
> updates processor cycles have to slip through the cracks.
> Therefore, a 1/60 non-interlaced display rate would require not
> only a faster graphics chip but also faster memory...
>                           It should be possible
> to capture this [video] output in video DRAMs...

David, you are absolutely right.  Video RAMs are the obvious technical
solution -- they give the CPU all your memory bandwidth and let you run
the monitor at damn near any scan rate it can handle.  Unfortunately,
Amiga did not built in the video RAMs, nor did they provide you with a
monitor that can handle a fast scan rate.  Retrofitting them is more
trouble than it's worth.  Get a long persistence monitor and wait for
the Amiga ][.

PS:  If it's any consolation, I tried to talk Atari into using video
rams for their next products and I don't think *they* will either. 
(Something about them costing a few cents more than regular rams.)
-- 
John Gilmore  {sun,ptsfa,lll-crg,ihnp4}!hoptoad!gnu   jgilmore@lll-crg.arpa
		     May the Source be with you!