Re: Dating a C-64 board

From: Olaf Seibert (
Date: 1999-05-08 14:25:06

On Mon, 19 Apr 1999, Andre Fachat wrote:

> Of course the PET has it easier, as only the character data
> is to be read from memory, not the pixel data.
> But it reads the character data in each scanline, so you can 
> change characters "within" the character.

There was actually a Cursor (demo) program that did that.
Unfortunately, I've never seen it work reliably. IIRC, that was on
an older model PET that still was 60Hz, so maybe there are more
subtle timing differences between european and american PETs than
that. Or it was simply sloppily programmed, of course. Cycle-counting
had certainly not become the art as it became on the 64.

> Andre
___ Olaf 'Rhialto' Seibert  rhialto(at)   "I would be dead in
\X/ a week if I didn't do /something/. I'd be splattered all over the walls."

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