[comp.sys.atari.8bit] 6502 upgrade for the atariS?

DFLINT02@ULKYVX.BITNET (09/09/87)

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