From: Rich (legalize_at_xmission.com)
Date: 2005-01-28 03:12:53
In article <41F99036.6060102@schemafactor.com>,
Leif Bloomquist <leif@schemafactor.com> writes:
> Jordi Delgado wrote:
>
> > I purchased a CBM 8296 with a double-disk drive
> > CBM 8250 in good working condition.
>
> I just got one too, very interesting machine. I don't know much about
> PETs yet but I'll answer what I can.
I'm a relatively new owner of another PET in the 8000 series: an 8032
with the accompanying 8050 disk drive.
I have put together a notebook with project material for what I'm
going to do with my PET. (Some sort of animated character hack with
hokey music, most likely!)
I started with PDFs and JPGs of PET 2001 manuals that are online. The
PET FAQ has lots of information on the entire product line of PETs,
including the 8000 series. For firmware information, there is a
memory map by Jim Butterfield that shows the locations used by BASIC
and ROM "kernal" in the various PETs. You may also want to get a
corresponding character map that shows the byte codes for various
characters in the extended and graphics character sets of the
character ROM of the PET. The PET Index by A. Fachat has some good
info on the programming model of the PET. WinVICE is a good emulator
and lets you emulate the specific ROM that you have in your PET so you
can cross-develop code for the PET on your PC. For the 8032, I found
a complete ROM analysis characterizing all the entry points and
whether the location represented text, data or code.
<http://www.portcommodore.com/commodore/pet/petwords.html> contains a
description of the keywords in PET basic. I was also interested in
assembly and chip coding the VIA, so I printed out information on the
6502 instruction set and the VIA chip. I also printed out some
information on the IEEE-488 interface bus used by the PET.
--
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<http://www.xmission.com/~legalize/book/>
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