Re: 264 Series and their chips

From: Gerrit Heitsch <>
Date: Mon, 22 Aug 2011 18:04:29 +0200
Message-ID: <>
On 08/20/2011 05:07 PM, Bil Herd wrote:
> I had a guy call who had designed a "Disco display" around the 264,
> bacially crt displays around a nightclub and then was mortified when he
> saw the border.  He called in and was able to get me on the phone  and I
> gave him the only news I knew of which was that I didn’t know of any way
> at all to change this.  My only suggestion was to flip rapidly between the
> two modes that caused the border to change slightly in size and so the
> border would appear "soft".  He was very sad when finished.  (Who designs
> a night club around a computer and then finds out it has a border?)

And what computer back then didn't have a border? With TVs as the main 
display device you didn't have much of a choice.

> Looking back I would have tried to rig the displays to overscan like hell.

The border area on a PAL 264 is a lot smaller than on a PAL C64 so with 
some adjustments of the displays it should have been possible to 
minimize the border further and then always set border and background to 
the same color.

My main display for those old systems is a 1084 monitor, that one allows 
you to adjust all parameters. An LCD doesn't quite cut it when it comes 
to flickerfree soft scrolling and the 1084 does have an S-video input.

BTW: Do you remember why some of the 8xxx-Chips got an 85xx-Number and 
some got an 83xx?


> Bil
> -----Original Message-----
> From:
> [] On Behalf Of Gerrit Heitsch
> Sent: Sunday, August 14, 2011 3:15 PM
> To:
> Subject: Re: 264 Series and their chips
> On 08/14/2011 09:01 PM, Hársfalvi Levente wrote:
>>   Few years ago, a couple of people (independently of each
>> other) finally came up with routines providing 400, or 416 pixels of
>> horizontal resolution (although with great drawbacks) by using this
> trick.
> Do you have a link giving some background on how that is done? I have seen
> full screen images on the C16, but so far was unable to find documentation
> that explains how to do this. Since TED doesn't have sprites you can't do
> things as you'd do with a VIC when you want to put graphics in the border
> area.
>    Gerrit
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>         Message was sent through the cbm-hackers mailing list

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Received on 2011-08-22 17:00:03

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