Re: VIC-II and luma levels

From: Groepaz <>
Date: Thu, 12 Jan 2012 20:30:31 +0100
Message-Id: <>
On Thursday 12 January 2012, you wrote:
> Hello,
> I know there is a major difference in the PAL version of the VIC-II
> between the 6569R1 and all later versions. The R1 is only able to do 5
> luma levels (1-4-6-4-1 number of colors per level) for the 16 colors
> while the later versions are able to do 9 luma levels
> (1-2-2-2-2-2-2-2-1). Some demos look quite odd on the R1.
> I know there were timing changes between revisions in the NTSC versions
> of the VIC-II (6567), but were there also changes with the luma levels?
> And how many levels does a 6567 have?
> It's easy enough to check with a little BASIC program and some time to
> sort the colors into the right sequence. Then turn down the color.

its an interesting question indeed, if only to get it correct in VICE :)

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Received on 2012-01-12 20:00:27

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