# Tom and Jerry Tales: matching decompilation of the EU Nintendo DS game

> Tom and Jerry Tales reconstructs C source for the EU Nintendo DS game with Metrowerks mwccarm. Its matching process counts a function only when its compiled bytes match the original and the user's ROM still rebuilds byte for byte; the author reports 92.10% matched code and 1889 of 1931 functions in the dated progress table.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/liolu/tom-and-jerry-tales-decomp>
- Primary source: <https://github.com/liolu/tom-and-jerry-tales-decomp/blob/df6d195cdc0b8948a6b95f3d6ba1e938762983b2/README.md>
- Catalog page: <https://awesomerea.org/resources/tom-and-jerry-tales-decomp-case/>
- Record JSON: <https://awesomerea.org/resources/tom-and-jerry-tales-decomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/tom-and-jerry-tales-decomp-case/index.md)

## Requirements & limits

- **Prerequisites:** Requires the user's decrypted EU base ROM named baserom_tom_and_jerry_tales_eu.nds.
- **Limits:** The compiler version remains to be identified, and auto-matched m2c output still needs cleanup.
- **Testing evidence:** The author reports 92.10% matched code and 1889 of 1931 functions as of 2026-11-05.
- **License:** CC0-1.0 license for the main repository; the native runtime directory states MIT.

## Primary sources

1. <https://github.com/liolu/tom-and-jerry-tales-decomp/blob/df6d195cdc0b8948a6b95f3d6ba1e938762983b2/README.md>
2. <https://github.com/liolu/tom-and-jerry-tales-decomp/blob/df6d195cdc0b8948a6b95f3d6ba1e938762983b2/extract/README.md>

## More in Games

- [Tomba!: matching decompilation of four PlayStation releases](https://awesomerea.org/resources/tomba-decomp/index.md) · Case study
- [Tombi!: matching PlayStation decompilation and native port](https://awesomerea.org/resources/tombi-matching-decomp-case/index.md) · Case study
- [Tony & Friends: New Adventures: a reccmp-guided decompilation](https://awesomerea.org/resources/tony2-decomp-case/index.md) · Case study
- [Tony Hawk's Pro Skater: a matching Nintendo 64 decompilation](https://awesomerea.org/resources/thps64-case/index.md) · Case study
- [Tony Hawk's Underground: a matching PS2 decompilation](https://awesomerea.org/resources/tony-hawks-underground-ps2-decomp-case/index.md) · Case study
- [Top Spin 4 decompilation: matching Xbox 360 functions against three XEX modules](https://awesomerea.org/resources/top-spin-4-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.