cs3b3aj@maccs.McMaster.CA (Stephen M. Dunn) (03/31/89)
In article <41021@tut.cis.ohio-state.edu> calhoun@cis.ohio-state.edu (robert r calhoun) writes: > > Recently a friend of mine wanted me to turn his 6502 computer into > a faster machine.(ok, ok, his commodore 64). After some research > I found a 65C02 which is a CMOS 4mhz version of the 1mhz 6502. > I also saw a 65C802, but no information on it's purpose. I would like > to think it is a CMOS 8 mhz, it cost over twice as much as the 65C02, > and this might be a good sign. I appreciate any comments on these > chips. thank you. Shouldn't this be in comp.sys.cbm? Actually, I think there was a discussion of this in that group very recently. Anyway, note that the processor in the 64 is _not_ a 6502 - it's a 6510. While the two share a common instruction set, the 6510 has a small I/O port located at memory locations 0 and 1 which the 6502 does not have. Therefore, I wouldn't think that the 65C02 or 65C802 would work. Also, you should keep in mind that faster processors need faster memory (RAM _and_ ROM) and faster I/O chips. In summary, I would think it very unlikely that plugging either of those chips into your friend's 64 will create a working computer. Regards, -- ====================================================================== ! Stephen M. Dunn, cs3b3aj@maccs.McMaster.CA ! DISCLAIMER: ! ! I always wanted to be a lumberjack! - M.P. ! I'm only an undergrad ! ======================================================================