# Super Mario Bros. 3: Famicom disassembly

> smb3 disassembles the initial Family Computer release of Super Mario Bros. 3 and adds C-like annotations for branches and loops. An extraction script obtains assets from a headered iNES ROM before building with the cc65 6502 toolchain.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-09
- Added to the catalog: 2026-11-09
- Original resource: <https://gitlab.com/segaloco/smb3>
- Primary source: <https://gitlab.com/segaloco/smb3/-/blob/784ea6fa4fd5724cfb0428d03674177e2314ed8f/README>
- Catalog page: <https://awesomerea.org/resources/smb3-famicom-disassembly-case/>
- Record JSON: <https://awesomerea.org/resources/smb3-famicom-disassembly-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/smb3-famicom-disassembly-case/index.md)

## Requirements & limits

- **Prerequisites:** A headered iNES ROM of the initial release is required to extract assets.
- **Prerequisites:** A UNIX-like build platform and the cc65 6502 development suite are listed.
- **Limits:** Plan 9 build support is broken; the current pass covers the initial Famicom release.
- **License:** No licence stated on the project page.

## Primary sources

1. <https://gitlab.com/segaloco/smb3/-/blob/784ea6fa4fd5724cfb0428d03674177e2314ed8f/README>

## More in Games

- [Super Mario RPG: an SNES disassembly assembled with extracted assets](https://awesomerea.org/resources/super-mario-rpg-disassembly-case/index.md) · Case study
- [Super Monkey Ball Jr.: GBA disassembly](https://awesomerea.org/resources/smbjr-case/index.md) · Case study
- [SUPERCOPTER: decompiled MS-DOS Pascal source](https://awesomerea.org/resources/supercopter-decompiled-case/index.md) · Case study
- [SW_RACER_RE: selected functions from Star Wars Episode I: Racer](https://awesomerea.org/resources/sw-racer-re-case/index.md) · Case study
- [Technician Ted: an annotated ZX Spectrum disassembly](https://awesomerea.org/resources/chipfact-case/index.md) · Case study
- [The Journeyman Project Turbo!: a Windows 3.1 decompilation](https://awesomerea.org/resources/journeyman-project-turbo-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.