Re: Big-PET

From: Ruud Baltissen (
Date: 1998-09-06 21:31:19

Hallo Martijn,

Aan 29-04-98 10:34, in bericht <>, Martijn 
van Buul <> schreef:

> wrote:
> > Hallo allemaal,
> Goedendag :)
> > One genearl question remains: What happens if the processor of a PET or
> > 1541 runs out of phase with the onboard clock or even at a (slightly)
> > different speed? In case of the PET I think of the video and in case of the
> > 1541 I think of the I/O for reading from/writing to the disk.
> I'm not sure what happens with a PET, but I just happened to read an 
> article last night about an upgrade for the old SpeedDos system for the
> 1541/C64. Basicly, all it did was doing the GCR decoding in hardware
> instead of software, and speedup the processor to 2MHz while doing
> disk I/O. I'll lookup the article for you (but since I won't have
> any internet connection for the next week or so, that'll take a while :)
> I believe it was called something like "Professional DOS pro"

Nog gevonden?

Groetjes, Ruud

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