29 Apr
2007
29 Apr
'07
9:47 a.m.
On 28/04/2007 05:18, Ensor wrote:
Changing the subject slightly, IIRC the original
"Acorn 6502 Second
Processor" cheese-wedge was just that, a faster 6502?
Actualy, it's a 3MHz 65C02.
Did Acorn ever release a "cheese-wedge"
65c02 or 65816?
See above :-)
? Also, is it
possible to replace the 6502 in one of these with a 65c02; not that I'd
actually try it, unless the 6502 was socketed, but I recall having BIG
problems (in fact, total failure IIRC?) when I tried running a 65c02 in
a Model B sometime in the early 90's?
I can't think why -- it's a drop-in replacement and lots of people have
done it. Sometimes you need to change the 74LS245 data bus buffer
that's near the 6502 to get best results, but usually only if a Second
Processor unit is involved.
--
Pete Peter Turnbull
Network Manager
University of York