Do I need the original game files to run Kingdom Hearts 358/2 Days Decompilation?

Yes. The project does not include the original game's assets, so you need your own copy.

How is Kingdom Hearts 358/2 Days Decompilation licensed?

contributors: CC0 1.0 (decompilation and tooling). The repository itself is the authoritative source.

Kingdom Hearts 358/2 Days Decompilation

DecompilationActive

Source code reconstructed from the original game's compiled binary, so the game can be understood, rebuilt and ported.

Based on Kingdom Hearts 358/2 Days

Image of the original game, Kingdom Hearts 358/2 Days. This project has no screenshots of its own yet.

Kingdom Hearts 358/2 Days (original game, not this project) — Image of the original game, Kingdom Hearts 358/2 Days. This project has no screenshots of its own yet.

Links, repository & details

About

A work-in-progress matching decompilation of Kingdom Hearts 358/2 Days for the Nintendo DS, aiming for C source that recompiles to a binary byte-for-byte identical to the original game code. Every function of the EU (YKGP) ARM9 program and its overlays is matched, and the rebuilt modules are byte-identical (306 of 306). It contains no ROM or game assets and produces no playable build.

Getting started

It is not playable.

Known issues & limitations

The project does not contain or produce a playable build or redistributable game binary.

What you need to run it

Original game files required. The project ships code only; you provide your own copy of the game (Nintendo DS version).

An existing, legally obtained copy of the game is required to extract and build the project.

Status & roadmap

23,125 of about 23,233 functions are real matched C, and initialized data is 188,336 of 188,340 bytes (100.00%).

Licensing & legal

The decompilation and tooling are dedicated to the public domain under CC0 1.0, covering only the contributors' own work.

Additional notes

Assembly: All game code is C except two functions needing the clz instruction; the remaining assembly is library code from NitroSDK, the CodeWarrior runtime and MobiClip.

FAQ

What is Kingdom Hearts 358/2 Days Decompilation?: Kingdom Hearts 358/2 Days Decompilation is an open-source decompilation of Kingdom Hearts 358/2 Days. Source code reconstructed from the original game's compiled binary, so the game can be understood, rebuilt and ported. The original game ran on Nintendo DS.
Do I need the original game files to run Kingdom Hearts 358/2 Days Decompilation?: Yes. The project does not include the original game's assets, so you need your own copy.
How is Kingdom Hearts 358/2 Days Decompilation licensed?: contributors: CC0 1.0 (decompilation and tooling). The repository itself is the authoritative source.