Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site calma.UUCP
Path: utzoo!decvax!decwrl!sun!calma!karshat
From: karshat@calma.UUCP (Walter Karshat)
Newsgroups: net.graphics,net.micro.pc
Subject: High res color frame buffer for IBM PC AT info request
Message-ID: <104@calma.UUCP>
Date: Tue, 17-Dec-85 20:03:57 EST
Article-I.D.: calma.104
Posted: Tue Dec 17 20:03:57 1985
Date-Received: Thu, 19-Dec-85 00:04:06 EST
Reply-To: karshat@calma.UUCP (Walter Karshat)
Distribution: na
Organization: GE/Calma Co., R&D Systems Engineering, Milpitas, CA
Lines: 30
Xref: sun net.graphics:1293 net.micro.pc:6047


	I am looking for a color frame buffer card for IBM PC AT.
I need 1024x768 resolution at 4(8) bits/pixel, look-up table at 12(24) bits,
RGB output.  The hardest requirement to meet is memory-mapped frame buffer
(obviously 64k at a time).
I am not interested in CGA or EGA from IBM, nor in improvements on them:
640x400x8 kind.  IBM's PGC and other purely command driven card sets do not
qualify.
Mono adapter emulation desired but not required.
Ability to map two different 64k segments at a time a plus.
Ability to access frame buffer either as pixels or by a bit plane a big plus.
Hardware for bitblit (raster block move) almost a requirement.
Hardware to rasterize vectors a plus.
Cards specifically for AT (larger form factor) allowed, moreover using 16-bit
bus a big plus, as is provision for DMA.
	It seems like Hitachi 63484 chip and a few small miracles with memory
should do it and somebody ought to build one.  There is an article on PC
graphics cards in August '85 issue of MINI-MICRO SYSTEMS that lists a few
prospective vendors, whom I will contact.  I will appreciate leads to other
vendors (need a phone number or an EXACT name and city) as well as personal
experiences and findings via E-MAIL, and I WILL SUMMARIZE TO THE NET.
	
	Walter Karshat
	Calma Co. MS C51P
	525 Sycamore Dr.
	Milpitas CA 95035
	(408) 434-4926
	ucbvax!calma!karshat

Disclamer: This may or may not have something to do with nothing or visa versa.