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Ancient History ....
Microchip has a plethora of new processors, recently introduced - I almost used one on our robot because of a) its features and b) my familiarity with the family language.
6502's ...... addressed 64k, no 'ports', clocked at 1 MHz, most instruction cycles in 1 or 2 clocks.
The 6502 was used in early Commodores (I abhor the Commmodore....the 8-bit Commodore 64..)) and in a precursor, the Commodore KIM (keyboard interface monitor) which had 1.7 k of memory, four 7-segment LEDs and a 16 button matrixed keyboard (via a 6522? VIA). "Peter Jennings' wrote a Chess program for KIM that ran, but made "stupid moves" according to a local chess club leader.
I have the ROM set for a PET, which I accepted when I thought of building a board for my ][+ (6502) to make it run Commodore (6502) PET Basic programs. They may have gotten into upgraded offshoots of the 6502 later.
Sorry to go off topic.
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