On 18/01/2011 02:37, Harold Hallikainen wrote:
> Was that Motorola? I thought it was Mostek or something like that. I
> remember they did the 6500 series (6502 processor, 6522 versatile
> interface adapter, 6551 (I think) programmable uart, etc.). Motorola did
> the 6800 series. I used the MC6802, which was a 6800 with internal clock
> (just add a crystal) an 128 bytes of RAM. I think they had some designers
> in common. I think I recall the 6800 was first, then some people went off
> to do the 6502. The big difference I remember was the 6502 had two index
> registers, while the 6800 had just one. I think the 6502 had 8 bit index
> registers, while the 6800 had a 16 bit index register. I think the 6800
> had two accumulators and the 6502 had just one. The 6502 was used in the
> Apple II, the VIC 20, Commodore 64, etc.
>
> Harold
>
Yes.

Very similar. but true about Mostek & Motorola. There was a lawsuit.

http://en.wikipedia.org/wiki/6502

History repeated with Exxon funded Zilog Z80 and  Intel 8080
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