Hello everyone! I apologize for such stupid questions, but I don't understand anything about these things at all. So I want to ask you for help. I need a MOS 6502 processor circuit and any simple code that runs on it, as it's done here for the 6504 (sections "Schematic Drawing" and "A Simple Test Program")

I really hope for your understanding and help.

You could start with the Ben Eater project: https://eater.net/6502

-Gordon

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Gordon Henderson.
See my Ruby 6502 and 65816 SBC projects here: https://projects.drogon.net/ruby/

Welcome! You've come to the right place. And no need to apologize.

Allow me to direct you to Garth's most excellent 6502 PRIMER: Building your own 6502 computer. Also, he's posted a simple computer schematic here.

If you have specific questions, feel free to ask. But you'll find most of what you heed to know via those links (and the one drogon posted above).

Have fun, and keep us posted!

-- Jeff

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In 1988 my 65C02 got six new registers and 44 new full-speed instructions!
https://laughtonelectronics.com/Arcana/ ... mmary.html