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An emulator for the Garrett Micro II vibe coded from its manual

Working from a PDF of the manual, Claude wrote a Python emulator for the unusual Garrett Micro II, with an assembler, disassembler, GUI and tests.

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Credits

  • Reddit poster gneusse Source ↗

Earliest dated source: 5 Aug 2025

The full story

The Garrett Micro II is an unusual old computer that has had some attention in the last couple of years. The maker found a PDF of its manual and vibe coded an emulator with Claude, which "created much more that I asked for".

The Python project includes the CPU and memory, an assembler and disassembler, I/O device simulation, a GUI and a command-line interface, example programs and a test suite. The post doesn't say how faithfully it matches the real machine.

How it was done

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Sources

From a short post by the maker, so the details are as they tell them.

  • Reddit: Garrett Micro IIForum threadreddit.com
    Reddit poster: gneussePosted 5 Aug 2025

    The maker's post on r/retrocomputing.

    If it disappears: archived copy of Reddit: Garrett Micro II (opens in a new tab)

  • The project: main.pyBlog or write-upmain.py

    Linked in the post.

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Prompt & Solder

An independent community project. Not affiliated with Anthropic.

What this is. Real projects where people used Claude to build, fix, port, revive or take apart something, from jailbroken Kindles to rebuilt DOS games, plus the times it went badly wrong. Every build links to where it was shared, and every source is listed here.

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