Re: Blurry picture

From: Richard Atkinson <*rga24_at_cantab.net*> Date: Sat, 19 Nov 2011 14:37:26 -0000 Message-ID: <0BF57D6DE5814708A2282EE3AC3479DB@abion> · rga24_at_cantab.net

Pasi, I'd love to know what the chip numbers and date codes are on these 
VIC-Is that exhibit the effect. I've never encountered it on any of my 
VIC-Is, but on my VIC-IIs it seems to correlate exactly with the 6569R4, 
6569R5 and 8565R2.

Richard

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From: "Pasi 'Albert' Ojala" <a1bert@iki.fi>
Sent: Saturday, November 19, 2011 10:59 AM
To: <cbm-hackers@musoftware.de>
Subject: Re: Blurry picture

> On 11/18/11 21:52, Segher Boessenkool wrote:
>>>>> What I do notice are the grey dots of the HMOS-II VICs.
>
> Extra info:
>
> The same grey-dots effect can be seen in some VIC-I chips / VIC20 machines 
> as well, but only for the border color pixels. If you lay out a video 
> matrix on top, then changing the border+background register $900f does not 
> cause problems.
>
> Now, if I only could remember whether they were grey or light yellow 
> pixels (VIC-I color 15).
>
> -Pasi
>
>
>
>
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