- WARNING! -
The ROM this repository builds while has a matching checksum cannot be 'shifted' due
to hardcoded pointers which have yet to be dumped. Thus this repository is currently
in an experimental and research phase and cannot currently be used traditionally as a
source code base for general changes.This repo does not include all assets necessary for compiling the ROM. A prior copy of the game is required to extract the required assets.
This is a decompilation of Legend of Zelda: Majora's Mask (US) 1.0
It builds the following ROM:
- mm.us.rev1.rom.z64
md5: 2a0a8acb61538235bc1094d297fb6556
Please refer to the following for more information:
Website: https://zelda64.dev/
Discord: https://discord.zelda64.dev
For Windows 10, install WSL and a distribution by following this Windows Subsystem for Linux Installation Guide. We recommend using Debian or Ubuntu 18.04 Linux distributions.
The build process has the following package requirements:
- make
- git
- build-essential
- binutils-mips-linux-gnu
- python3
- pip3
Under Debian / Ubuntu (which we recommend using), you can install them with the following commands:
sudo apt update
sudo apt install make git build-essential binutils-mips-linux-gnu python3 python3-pipCreate your own fork of the repository at https://github.com/zeldaret/mm. Then clone your fork where you wish to have the project, with the command:
git clone https://github.com/<YOUR_USERNAME>/mm.gitCopy your ROM to inside the root of this new project directory, and rename the file of the baserom to reflect the version of ROM you are using. ex: baserom.mm.us.rev1.z64
To start the extraction/build process, run the following command:
make initThis will extract all the individual files in the ROM into a newly created baserom folder, as well as decompress the compressed files in a newly created decomp folder. This will create the build folders as well as a new folder with the ASM as well as containing the disassemblies of nearly all the files containing code.
This make target will also build the ROM. If all goes well, a new ROM called "mm.us.rev1.rom.z64" should be built and the following text should be printed:
mm.us.rev1.rom.z64: OKIf you instead see the following:
mm.us.rev1.rom.z64: FAILED
md5sum: WARNING: 1 computed checksum did NOT matchThis means that something is wrong with the ROM's contents. Either the baserom files are incorrect due to a bad ROM, or some of the code is not matching.
Running make init will also make the ./expected directory and copy all of the files there, which will be useful when running the diff script. The diff script is useful in decompiling functions and can be ran with this command: ./tools/asm-differ/diff.py -wmo3 <insert_function_here>
All contributions are welcome. This is a group effort, and even small contributions can make a difference. Some tasks also don't require much knowledge to get started.
Most discussions happen on our Discord Server, where you are welcome to ask if you need help getting started, or if you have any questions regarding this project and other decompilation projects.