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From: DFLINT02@ULKYVX.BITNET
Newsgroups: comp.sys.atari.8bit
Subject: 6502 upgrade for the atariS?
Message-ID: <8709082242.AA23091@ucbvax.Berkeley.EDU>
Date: Tue, 8-Sep-87 18:35:00 EDT
Article-I.D.: ucbvax.8709082242.AA23091
Posted: Tue Sep  8 18:35:00 1987
Date-Received: Thu, 10-Sep-87 00:50:09 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: University of Louisville
Lines: 23


Hi John
Could you refer my questions to your resident Hardware wizard PauL
Swanson.

Has anyone out there ever tried to run the atari custom chips
at a higher clock rate.  They normally run at 1.79Mhz but the cpu
can run at a  full 2mhz.

I'm thinking about replacing the 6502 with the 65816(The IIGs cpu).
the 65816 can run at clock speeds between 1mhz and 4mhz.
I know that the 65816 is not directly pin compatable with the
Atari 6502c(Its in the Xl & XEs), but it should work thru the
parrallel bus.

Does anyone here in netland known of other 8/16 bit 6502 compatible
cpu's. Also price list and distributors of the 65816 compatibles
would be very helpful.

William M. Buford
(Novice Hardware Hacker)
(An Action Programmer!)
Dflint02@ulkyvx.bitnet