# SMW NES Disassembly: disassembling the Famicom Super Mario World port

> SMW NES Disassembly is a work-in-progress assembly disassembly of the unlicensed Famicom port of Super Mario World. Its build extracts assets from the user's ROM and assembles the source; the contribution guide calls for checking the assembled ROM against the final version's code.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/palaceswitcher/SMW-NES-Disassembly>
- Primary source: <https://github.com/palaceswitcher/SMW-NES-Disassembly/blob/62ac099d8d268ed44fa1ada351b615ec4a1cbf2d/README.md>
- Catalog page: <https://awesomerea.org/resources/smw-nes-disassembly-case/>
- Record JSON: <https://awesomerea.org/resources/smw-nes-disassembly-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/smw-nes-disassembly-case/index.md)

## Requirements & limits

- **Prerequisites:** A copy of the game's ROM is needed to extract assets with smw_nes_extractor.py.
- **Prerequisites:** Python and make are needed for the documented build.
- **Limits:** The disassembly is a work in progress, and much of its code remains undocumented.
- **License:** CC0-1.0 license.

## Primary sources

1. <https://github.com/palaceswitcher/SMW-NES-Disassembly/blob/62ac099d8d268ed44fa1ada351b615ec4a1cbf2d/README.md>
2. <https://github.com/palaceswitcher/SMW-NES-Disassembly/blob/62ac099d8d268ed44fa1ada351b615ec4a1cbf2d/CONTRIBUTING.md>

## More in Games

- [Snowboard Kids 2: an LLM-assisted N64 matching decompilation](https://awesomerea.org/resources/snowboardkids2-decomp-case/index.md) · Case study
- [Snowboard Kids Plus: a matching PlayStation decompilation](https://awesomerea.org/resources/snowboard-kids-plus-case/index.md) · Case study
- [Snowboard Kids: an agent-assisted N64 matching decompilation](https://awesomerea.org/resources/snowboardkids-matching-decomp-case/index.md) · Case study
- [Snowboard Kids: an early matching Nintendo 64 disassembly](https://awesomerea.org/resources/sonicdcer-snowboard-kids-case/index.md) · Case study
- [Solomon's Key: byte-identical source reconstruction of three NES releases](https://awesomerea.org/resources/solomons-key-nes-reconstruction-case/index.md) · Case study
- [som-decomp: reconstructing Secret of Mana from a cartridge ROM](https://awesomerea.org/resources/som-decomp-case/index.md) · Case study

## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.