/cbr_decomp

Chibi-Robo: PIA Decompilation

Primary LanguageC++

Chibi-Robo: PIA disassembly/decompilation to C++/C Discord Badge alt text alt text

A work-in-progress decompilation of Chibi Robo:PIA.

This repository does not contain any game assets or assembly whatsoever. An existing copy of the game is required.

Supported versions:

  • GGTE01: Rev 0 (USA)

Goal

The goal of this project is to get a PC, Switch, PS4, and PS Vita port of Chibi-Robo PIA. As you all know, Nintendo has probably buried this game, but developers like myself will make sure that Chibi is rebooted. Thanks again for stopping by.

This is currently a solo project. I work a lot and barely have time to code or be with my cats. Please feel free to support this project: https://www.buymeacoffee.com/itsemistro

It builds an NON matching dol file.

If your goal is to compile a complete matching rom fork this from the initial upload.

Dependencies

Windows:

On Windows, it's highly recommended to use native tooling. WSL or msys2 are not required.
When running under WSL, objdiff is unable to get filesystem notifications for automatic rebuilds.

  • Install Python and add it to %PATH%.
  • Download ninja and add it to %PATH%.
    • Quick install via pip: pip install ninja

macOS:

  • Install ninja: 
    brew install ninja
  • Install wine-crossover: 
    brew install --cask --no-quarantine gcenx/wine/wine-crossover

After OS upgrades, if macOS complains about Wine Crossover.app being unverified, you can unquarantine it using:

sudo xattr -rd com.apple.quarantine '/Applications/Wine Crossover.app'

Linux:

  • Install ninja.
  • For non-x86(_64) platforms: Install wine from your package manager.
    • For x86(_64), WiBo, a minimal 32-bit Windows binary wrapper, will be automatically downloaded and used.

Building

  • Clone the repository: 
    git clone https://github.com/my/repo.git
  • Using Dolphin Emulator, extract your game to orig/GAMEID.
    • To save space, the only necessary files are the following. Any others can be deleted.
      • sys/main.dol
      • files/rels/*.rel
  • Configure: 
    python configure.py
    To use a version other than GAMEID (USA), specify it with --version.
  • Build: 
    ninja

Visual Studio Code

If desired, use the recommended Visual Studio Code settings by renaming the .vscode.example directory to .vscode.

Diffing

Once the initial build succeeds, an objdiff.json should exist in the project root.

Download the latest release from encounter/objdiff. Under project settings, set Project directory. The configuration should be loaded automatically.

Select an object from the left sidebar to begin diffing. Changes to the project will rebuild automatically: changes to source files, headers, configure.py, splits.txt or symbols.txt.

Test Folder:

Contains tools to inject code into Chibi-Robo via Gecko Codes for debugging and testing

Includes header files and functions that can be changed! happy modding :)

Usage: buildCBR.bat nameOfScript.c After compiling and linking, the gecko code will be added to your clipboard. Paste the code into dolphin!