Pure coding

The 6502 microprocessor changed the world. Released in the 1970’s, it was the reason that home computers became something within the reach of many hobbyists. This app re-creates the 6502 CPU and some of the hardware that used it. This isn't a game (although games are included), this is an emulation of the 8-bit processor, complete with assembler and some puzzles.

Use the most basic user interface you can imagine - 7-segment LEDs and some buttons - to enter, debug and run your applications. Then upgrade to a display and keyboard, and use the built-in monitor program to dump memory, makes edits and execute your code. Can you run BASIC? Maybe. FORTH? Perhaps. Assembler? Definitely!

Don't think of this as a game (or something "fun" in the traditional sense). Think of it as a puzzle - how on earth did those folks in the 1970's manage to do ANYTHING when computers were this simple?

Documentation is provided, but to get the most of out of this app you'll need to do your own research. Just like in the 1970s.

What’s New

Version 1.8

Our engineers were feeling smug about the challenges they had set you, when someone pointed out they had forgotten to add support for STX and STY in the Assembler. You should have seen their faces! They worked all weekend to get this release out. Enjoy :-)

App Privacy

The developer, John Kennedy, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary based on, for example, the features you use or your age. Learn More


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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