The C64 and C128 were based on the MOS Technology 6502 which Commodore 
eventually became the IP owner.    I do not know of an 8502 processor. 

As I said previously this is the same chip as used by Apple, Atari and many 
others. 

It did not run CP/M which needed an Intel 8080 based instruction set (the Zilog 
Z80 is an 8080 superset). 

Clem
Sent from my iPhone

> On Jun 30, 2015, at 7:21 PM, Bill Cunningham <[email protected]> wrote:
> 
>     Did the C64 not run CP/M? I know the 128 did. It had a 8502 processor and 
> Z80A processor I believe. One was for CP/M. What good is a commodore machine 
> without CP/M ;)
>  
> Bill
>  
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