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From: madler@nntp-server.caltech.edu (Mark Adler)
Newsgroups: comp.sys.next,comp.arch
Subject: Re: Video implementation on NeXTstation color
Keywords: RAMDAC,NeXT
Message-ID: <1991May2.075251.11719@nntp-server.caltech.edu>
Date: 2 May 91 07:52:51 GMT
References: <1991May01.222537.26445@slate.mines.colorado.edu>
Organization: California Institute of Technology, Pasadena
Lines: 13


Michael Friedel found out:
>> The RAMDAC has 16x8bit for every DAC, it is a Bt463, the basic implementation
>> is
>> [VRAM] 4bit -> [Color palette (16 x 8 bit)] 8bits -> [DAC] -> video
>> 
>> for every channel (that is green, red and blue).

Too bad.  That settles it.  The color slabs cannot display more than 16
shades of gray (per pixel).

Mark Adler
madler@pooh.caltech.edu