3 Jun
2002
3 Jun
'02
5:01 p.m.
. . . and what's so "mystic" about this machine? I can see one considering
it
mysterious, but that's another matter.
Dick
----- Original Message -----
From: "Tony Duell" <ard(a)p850ug1.demon.co.uk>
To: <cctalk(a)classiccmp.org>
Sent: Saturday, June 01, 2002 12:51 PM
Subject: Re: What was that mystic Commodore 6509 computer?
There was this computer Commodore was going to make and then pulled
out of the market. It was based on the 6509 CPU, I guess right before
I believe there were several... One of them was the P500, aka the PET-II.
It's got a 6509 CPU, VIC-II video chip (I think), and uses the parallel
IEEE-488 bus for peripherals. A sort of cross between a C64 and a PET.
They are not _that_ rare in the UK, at least not compared with some other
'never sold' machines.
The 6509 is a 6502 core with address extension registers (I think one
used for direct addresses, another for indirect addresses) allowing the
chip to access 1Mbyte of memory.
-tony