54f762b419
* func_800A7BE4 and func_800A7C20 done - func_800A7BE4 copy of "Math_Vec3f_ToVec3s" in z_lib.c - func_800A7C20 copy of "Math_Vec3s_ToVec3f" in z_lib.c * done func_800A7A24 * func_800A76A4 done * func_800A6E10 done * func_800A6EF4 done * func_800A6FA0 done * func_800A72FC done * Deleted z_skin_matrix.data.s and updated spec * func_800A730C done * func_800A735C done * func_800A7E70 done, func_800A7C60 matching but I'm not happy with it (weird types in function params) * Corrections. func_800A7C60 in skin_matrix done, Matrix_MtxFToMtx in sys_matrix done. * func_800A7EC0 nonmatching * func_800A8030 nonmatching but VERY close (two registers swapped) * func_800A8030 done * updating comments * func_800A7704 done * func_800A7894 done * halfway through deciphering mips_to_c for func_800A73E0 * func_800A73E0 functional but non-matching (saved register differences and probably regalloc) * Renaming some arguments and rewriting comments * Renamed files across whole project and deleted asm nonmatchings * ran format.sh * fixed function name * fixing multiplcation order in SkinMatrix_MtxFMtxFMult * Corrections in SkinMatrix_MtxFMtxFMult * Formatting changes after review * Changes as per code review * fixing rename error * fixing rename error * rename fixes * fixing function rename error * ran ./format.sh * last couple of changes as per code review * renamed SetScaling -> SetScale * Skin_Matrix_Invert -> SkinMatrix_Invert * Renaming and fixing debug message print * Renamed argument "mf" to more specific "clear" in SkinMatrix_GetClear * renamed again to "mfp" * snake case to camel case changes |
||
|---|---|---|
| asm | ||
| assets | ||
| data | ||
| docs | ||
| include | ||
| scenes | ||
| src | ||
| tools | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitattributes | ||
| .gitignore | ||
| .gitmodules | ||
| checksum.md5 | ||
| diff.py | ||
| diff_settings.py | ||
| docker-compose.yml | ||
| docker-sync.yml | ||
| Dockerfile | ||
| Doxyfile | ||
| extract_assets.py | ||
| extract_baserom.py | ||
| first_diff.py | ||
| fixbaserom.py | ||
| fixle.sh | ||
| format.sh | ||
| Jenkinsfile | ||
| Makefile | ||
| progress.py | ||
| README.md | ||
| spec | ||
| sym_info.py | ||
| THANKS.md | ||
| undefined_syms.txt | ||
The Legend of Zelda: Ocarina of Time
- WARNING! -
The ROM this repository builds cannot be 'shifted', primarily due to some hardcoded pointers which have yet
to be dumped. Thus this repository is currently in an experimental and research phase and cannot yet be used
traditionally as a source code base for general changes.
This is a WIP decompilation of The Legend of Zelda: Ocarina of Time. The purpose of the project is to recreate a source code base for the game from scratch, using information found inside the game along with static and/or dynamic analysis. The only build currently supported is Master Quest (Debug), but other versions are planned to be supported.
It builds the following ROM:
- zelda_ocarina_mq_dbg.z64
md5: f0b7f35375f9cc8ca1b2d59d78e35405
Note: This repository does not include any of the assets necessary to build the ROM. A prior copy of the game is required to extract the needed assets.
Website: https://zelda64.dev/
Discord: https://discord.zelda64.dev
Installation
Windows
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.
For older versions of Windows, install a Linux VM or refer to Docker instructions.
macOS
For macOS, install a Linux VM or refer to Docker instructions.
Linux (Native or under WSL / VM)
1. Install build dependencies
The build process has the following package requirements:
- git
- build-essential
- binutils-mips-linux-gnu
- python3
Under Debian / Ubuntu (which we recommend using), you can install them with the following commands:
sudo apt-get update
sudo apt-get install git build-essential binutils-mips-linux-gnu python3
2. Download qemu-irix
Download qemu-irix from the Releases section in the repository. Place it at a location of your choosing.
3. Set environment variables
Open up your .bashrc file (~/.bashrc), scroll to the bottom, and add the following, replacing the paths as necessary:
export QEMU_IRIX="path/to/your/qemu-irix"
export MIPS_BINUTILS_PREFIX=mips-linux-gnu-
Save and close/reopen your terminal window.
4. Clone the repository
Clone https://github.com/zeldaret/oot.git where you wish to have the project, with a command such as:
git clone https://github.com/zeldaret/oot.git
5. Prepare a base ROM
Copy over your copy of the Master Quest (Debug) ROM inside the root of this new project directory. Rename the file to "baserom_original.z64" or "baserom_original.n64", depending on the original extension.
6. Setup the ROM and build process
Setup and extract everything from your ROM with the following command:
make setup
This will generate a new ROM called "baserom.z64" that will have the overdump removed and the header patched. It will also extract the individual assets from the ROM.
7. Build the ROM
Run make to build the ROM. Make sure your path to the project is not too long, otherwise this process may error.
make
If all goes well, a new ROM called "zelda_ocarina_mq_debug.z64" should be built and the following text should be printed:
zelda_ocarina_mq_dbg.z64: OK
If you instead see the following:
zelda_ocarina_mq_dbg.z64: FAILED
md5sum: WARNING: 1 computed checksum did NOT match
This means that the built ROM isn't the same as the base one, so something went wrong or some part of the code doesn't match.
Docker
1. Setup requirements
To use Docker, you'll need either Docker Desktop or Docker Toolbox installed and setup based on your system.
You'll also need to prepare a local version of the project with a copied base ROM (see Step 4 and 5 of the Linux instructions).
2. Create the docker image
From inside your local project, run the following command:
docker build . -t oot
3. Start the container
Option A: With docker run
To start the container, you can mount your local filesystem into the docker container and run an interactive bash session.
docker run -it --rm --mount type=bind,source="$(pwd)",destination=/oot oot /bin/bash
Option B (only for macOS): With docker-sync
Prerequisite for this option: Install docker-sync with gem install docker-sync
To start docker-sync and the development container, use docker-sync-stack start
After a lot of waiting, you'll see something like "Attaching to oot_oot_1". This means the container is ready.
Then it's time to log into the container to begin working. Note that this will be done in another tab while you leave the docker-sync tab going.
To get the container id, use docker container ls and use the ID from the container with image oot:latest in the following command:
docker exec-it <CONTAINER-ID> /bin/bash You're in.
Note: When done working, type Ctrl+c on the docker-sync tab to close the container and docker-sync.
4. Setup and Build the ROM
Once inside the container, you can follow Step 6 and 7 of the Linux instructions to setup and build the ROM, or run any other command you need.
Contributing
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.