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Nugget

Where

There are two canonical ways to access the code located here. First is to access the full PCSX-Redux repository, which is in read-write mode. The second is to access the Nugget mirror, which is read only. The purpose of the mirror is to have a smaller set of sources and dependencies if somebody wants to only access the mips code of PCSX-Redux. It is suitable for using as a submodule.

What

This is a collection of several projects that are intended for running on the PlayStation 1, either through the official hardware or emulators.

This can serve as a base for other projects, or as a reference for how to write code for the PlayStation 1.

  • common - Common code for all projects. Highly recommended to be used by other projects.
  • crc32 A CRC32 implementation that is optimized for the PlayStation 1, using the scratchpad as a speedup.
  • cube A small demo that's demonstrating the use of the converted psyq libraries.
  • cxxhello A very quick hello world using C++.
  • helloworld A very simple hello world.
  • modplayer A MOD player from the reverse engineering of HITMEN's modplayer.
  • openbios A fully functional BIOS implementation for the PlayStation 1, based on the reverse engineering of Sony's BIOS.
  • psyq Some additional code for the converted psyq libraries.
  • psyqo The PSYQo project. This is a new SDK for the PlayStation 1, written from scratch in C++, using modern paradigms. This is probably where the most complete documentation exists for this project, and should be used as a reference for how to write code for the PlayStation 1.
  • shell The tiny shell project. This is currently the shell software that OpenBIOS uses to have a boot logo and chime.
  • tests A collection of tests to verify emulators behavior.

How

A toolchain will need to be installed before any of the projects can be built. The PSYQo's Getting Started documentation has instructions on how to install the toolchain.

Use the Makefile in each project to build that project.

Who

The PCSX-Redux project's authors are also the main authors and maintainers of this code. To discuss PlayStation 1 development, hacking, and reverse engineering in general, please join the PSX.Dev Discord server: Discord