Show HN: A working Nintendo in ~1GB of Qwen weights

What happened: A project called nesformer compiled an NES 6502 CPU, its 2 KB of work RAM, and cartridge program ROM into the weights of a stock Qwen3.5 model. Why it matters: The project builds on Qwenputer by Divyansh Agrawal, reusing its compiler and its trick of using the model's Gated DeltaNet state as machine memory. For the bundled test games, every frame matches a conventional 6502 emulator's output exactly, and the same weights run any NROM game without a rebuild.

A project called nesformer compiled an NES 6502 CPU, its 2 KB of work RAM, and cartridge program ROM into the weights of a stock Qwen3.5 model.

The project builds on Qwenputer by Divyansh Agrawal, reusing its compiler and its trick of using the model's Gated DeltaNet state as machine memory. For the bundled test games, every frame matches a conventional 6502 emulator's output exactly, and the same weights run any NROM game without a rebuild.