Re: 6567 revisions (was Re: 264/TED/Plus4 Story)

From: Gerrit Heitsch <>
Date: Thu, 25 Aug 2011 19:16:25 +0200
Message-ID: <>
On 08/25/2011 07:02 PM, Marko Mäkelä wrote:

> Configure your screen to black-and-white, and you should notice that the 6569R5 generates 9 luminance levels. Here is a simple test pattern:
> Hit ctrl-9 to enter reverse mode, then hit ctrl-1, space, ctrl-2, space, ..., ctrl-8, space, cbm-1, space, cbm-2, space, ..., cbm-8, space.

I'll give it a test and compare with the 6569R3, just need to dig out 
the C64s, currently I have the C16 hooked up to the Monitor since the 
BASIC V3.5 is soo much better for quick hacks or check out a number of 
old disks (Just press F3 for directory).

> Right, I can confirm this. I did not know that there was a HMOS VIC-II
> for the C64.

There is also and HMOS SID for the C64, the 8580R5. This one needs a 
little hack to re-enable playback of samples the way the 6581 could and 
also sounds differently. People have claimed that the 8580 works like 
its described in the data sheet... (the 6581 only kinda does).


       Message was sent through the cbm-hackers mailing list
Received on 2011-08-25 18:00:28

Archive generated by hypermail 2.2.0.