Lunar 2: Eternal Blue Complete PSX Decompilation

this is a decompilation Project of "Lunar 2: Eternal Blue Complete" SLUS_010.71 SHA1:74660524724730e5a6acfe32ee33010fc3451e74.

Building

The instructions below assume that you will be using Ubuntu 20.04; either natively, via WSL2, or via Docker.

Please check the packages.txt and requirements.txt for the prerequisite Linux and Python packages respectively. You'll also need the mips-elf flavour of binutils.

NOTE: You can take the precompiled binutils binaries from here.

Cloning

Clone the repository; note the --recursive flag to fetch submodules at the same time:

git clone git@github.com:Zackmon/lunar2-psx-decomp.git --recursive

Navigate into the freshly cloned repo

cd lunar2-psx-decomp

Create a folder named "SLUS_010" and extract the content of the iso in it

Using Docker

Spin up a container using the pre-built, ready-to-go, image:

docker run --rm -ti -v $(pwd):/lunar2 ghcr.io/zackmon/lunar2-psx-decomp:latest

Common Steps

Extract code/data from SLUS_010.71:

make extract

Rebuild as build/boot.dat:

make

Modifying Code

Once you have an 🆗 build, copy it into the expected/ folder so asm-differ can use it as a reference.

cp -r build/ expected/

References

The project structure and tools have been influenced by the following repos , without using them as a reference I would've not been able to start this project

https://github.com/mkst/ctr

https://github.com/Xeeynamo/sotn-decomp/