Easy enough, Western Design Center (supposedly the chief engineer there was a
designer of the original 6502?) has not only 1 and 2 MHz versions, but also a 14
MHz (!) version that can be run anywhere between DC and 14 MHz. Their website is
at http://www.westerndesigncenter.com/chips.html
They even offer them in core forms to put in a gate array. Price on that probably
wouldn't be practical for your purposes, though.
Neil Bradley wrote:
> > [Overclocking] - Ed and I talked about this a long time and figured the best
> > way to do it would be to roll something like http://www.free-ip.com/6502/
> > into a Virtex or Spartan FPGA. Plenty fast then. :-) The lack of BCD would
> > be a problem for Atari stuff IIRC, so that would have to get fixed.
>
> Apparently the 65C02 has higher clock rate versions, too. I'm just looking
> for a source for them.
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