Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/13/84; site intelca.UUCP Path: utzoo!decvax!decwrl!sun!idi!intelca!cem From: cem@intelca.UUCP (Chuck McManis) Newsgroups: net.micro.amiga Subject: Re: Resolution and Flicker - Rumors/Solutions Message-ID: <135@intelca.UUCP> Date: Tue, 29-Oct-85 11:57:49 EST Article-I.D.: intelca.135 Posted: Tue Oct 29 11:57:49 1985 Date-Received: Thu, 31-Oct-85 08:08:30 EST References: <2715@vax4.fluke.UUCP> <244@ssc-vax.UUCP> <2283@sjuvax.UUCP> <708@othervax.UUCP> <394@yale.ARPA> <320@ccivax.UUCP> Distribution: na Organization: Intel, Santa Clara, Ca. Lines: 27 > Talking to the local Amiga dealer, he stated that given the right monitor > to drive it, the Amiga could be programmed to run in very high resolution. > The numbers quoted were 1280x1024 interlaced. Can anybody confirm this? > > Could the Amiga change from the NTSC "Crawling Interlace" that causes the > high-res flicker, to a 70HZ and a 262.5 (rather than 262.525) scan rate? > This appears to be the way the ATARI gets it's high res (It doesn't flicker, > but it's monochrome)? The natural persistance of the Phosphor seems to hide > flicker unless you look very very close (1" with a magnifying glass). Assuming you could bypass the NTSC junk, there are two things that affect the need to use interlace. 1] The monitor must support "n" lines where "n" for the amiga would probably be 600 (400 displayed, 100 on top and bottom) and 2] bus bandwidth/scan rate. Meaning that to display all of those pixels on the screen in one frame the hardware has to be able to shove them out the interface at ~8 Mbytes /second (assuming 4 bit pixels in a 600 X 400 frame) The question is for anyone (especially the amiga folks) if the custom chips are capable of this sort of rate. And if so should I be saving my pennies for a very expensive RGB Hires monitor? --Chuck -- - - - D I S C L A I M E R - - - {ihnp4,fortune}!dual\ All opinions expressed herein are my {qantel,idi}-> !intelca!cem own and not those of my employer, my {ucbvax,hao}!hplabs/ friends, or my avocado plant. :-}