Anything is a soldering kit if you’re brave enough: The MOnSter 6502


Eric Shlaepfer wrote

So, I made a thing. A really big thing. Really big and really crazy.

What he created was a working transistor-scale replica of the MOS 6502 processor. Its name: MOnSter 6502.

There's something amazing about debugging at the transistor level.

Comments (7)
  1. Ah, the return of blinkenlights!

    One of my buddies, who works on the Excel team, keeps meaning to emulate a chip like this.
    Yes, in Excel.

    1. Yukkuri says:

      I like the cut of your buddy’s gib

  2. philiplu says:

    That’s wonderful. Nice that it’s using the same MOSFET technology as the original so it’s pretty much a 1-to-1 copy.

    There’s also a room-size 16-bit discrete CPU – http://www.megaprocessor.com.

  3. nathan_works says:

    oh man. I remember wiring up a 6502 in the 90s in digital electronics class. Getting to drive the oscilloscope from hand-coded (and hand-entered) hex assembly was a thrill of accomplishment.

  4. Ray Koopa says:

    Do we still have the accurate Pac-Man-Excel clone, with cells being pixels? Not sure if it was called Pac-xel.

  5. Stephen Hewitt says:

    It’s hard to think of anything more manly.

  6. Chris says:

    “So what does it do?”
    “That’s the beauty of it. It doesn’t DO anything.”

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