Pokémon Battle Revolution

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A work-in-progress matching decompilation of Pokémon Battle Revolution for the Wii. It currently targets the PAL release (RPBP01, revision 0).

This repository contains no game assets or assembly. You need your own copy of the game to build it.

[!NOTE] Some contributions are made with the help of AI. However, this project still strives to maintain a high standard of quality through the use of fakematch linting and human PR reviews.

Progress

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21.05% of the code matches the original (6,410 of 13,890 functions). 2.32% is in finished units linked into the build.

Area	Size	Matched
Startup	2 KiB	7.0 %	█░░░░░░░░░░░░░░░░░░░
Game entry point	37 KiB	34.7 %	███████░░░░░░░░░░░░░
Battle presentation	288 KiB	22.2 %	████░░░░░░░░░░░░░░░░
Scenes and menus	1,024 KiB	4.9 %	█░░░░░░░░░░░░░░░░░░░
Save data and Wi-Fi data	68 KiB	5.0 %	█░░░░░░░░░░░░░░░░░░░
Battle loop and camera	375 KiB	17.0 %	███░░░░░░░░░░░░░░░░░
Runtime, C library and MetroTRK	79 KiB	86.9 %	█████████████████░░░
gs engine	470 KiB	18.7 %	████░░░░░░░░░░░░░░░░
Game sound	46 KiB	3.4 %	█░░░░░░░░░░░░░░░░░░░
Game networking	51 KiB	29.4 %	██████░░░░░░░░░░░░░░
Revolution SDK	627 KiB	26.7 %	█████░░░░░░░░░░░░░░░
Other Nintendo libraries (VF, DWC, NW4R, HOME menu)	602 KiB	15.6 %	███░░░░░░░░░░░░░░░░░
Battle engine (ported from the DS games)	204 KiB	68.6 %	██████████████░░░░░░
Pokémon data	78 KiB	79.8 %	████████████████░░░░

Updated 2026-10-12 from the objdiff report of a local build.

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Many matched functions still use placeholder names and types. A unit is marked Matching only once it meets the definition of done in CONTRIBUTING.md.

Building

Requirements:

• Python 3 and ninja.
• On Linux and macOS, the Metrowerks compiler runs through wibo, which is downloaded automatically. On Apple Silicon, wibo needs Rosetta 2 (softwareupdate --install-rosetta).
• On Windows, the compiler runs natively.

Steps:

1. Put your disc image (ISO, RVZ, WBFS, CISO, GCZ…) in orig/RPBP01/. It can be deleted after the first build.

2. Configure and build:

   python configure.py
   ninja
   

   The build checks the resulting main.dol against config/RPBP01/build.sha1.

3. To compare functions, open the project directory in objdiff once objdiff.json exists.

Documentation

File	Contents
CONTRIBUTING.md	How to contribute: scope of a change, tools, build and verify, definition of done, commits and PRs, sign-off
STYLE.md	Code conventions
docs/areas.md	Currently claimed sections being worked on
docs/fakematches.md	What counts as a fakematch and how to justify one
docs/quality.md	The quality checks run on every pull request, and how to run them locally
docs/matching-notes.md	Compiler behaviour worked out on this project
docs/game-map.md	Map of main.dol by area (addresses, sizes, dependencies) and of the game's data files

Repository layout

Path	Contents
src/	Source files for game code (i.e. excluding external libraries)
src/gs/	Genius Sonority engine (memory, files, .fsys archives, scenes, rendering, input)
src/ds/	Code ported from the Gen 4 DS games, including the battle engine (src/ds/battle/)
src/.unsorted/	Units whose role is not identified yet, named after their start address
include/	Headers, one per module, mirroring src/ (include/gs/GSnand.hpp for src/gs/GSnand.cpp); project-wide helpers and macros in include/common.hpp
libs/	Revolution SDK, RevoEX, Metrowerks runtime and C library, MetroTRK
config/RPBP01/	splits.txt and symbols.txt for decomp-toolkit
configure.py	Compiler settings and the unit list with Matching/NonMatching flags; generates build.ninja
orig/RPBP01/	Your disc image (not in the repository)
build/	Build output, including the target assembly of each split in build/RPBP01/asm/
tools/	Build scripts and progress.py; tools/decomp/ has scripts for checking a unit, tools/qa/ the quality checks
scripts/	Custom analysis scripts
ghidra_scripts/	Imports symbols.txt into a Ghidra project
docs/	Documentation (see above)

Credits

• Parts of the Revolution SDK come from koopthekoopa/wii-ipl and doldecomp/ogws, and the C library and MetroTRK from SMGCommunity/Petari, all CC0. Files imported in this repository name their source on their first line.
• Names and structures in the code ported from the DS games follow pret/pokeplatinum and pret/pokediamond.
• The build system comes from encounter/dtk-template.

License

CC0, like the projects whose code it imports, except the Bluetooth stack headers in libs/RVL_SDK/include/private/bte/, which derive from bluedroid and are under the Apache License 2.0 (see LICENSE and NOTICE in that directory).