kakuho / psxjun Goto Github PK

PSXJun is an amateur experimental low level emulator to learn more about computer architecture, using the PlayStation 1 as a case study. For an actual playable emulator, please check out the emulators listed below.

One aim of this project is to gain familiarity with writing a 3D engine as previous emulators I made used 2D pixel engines where I treated OpenGL merely as a way to blitz pixel quads.

I am also a fan of making things one enjoy, and as I enjoyed making 2D emulators, this seems to be a natural progression.

For now, I aim to get BIOS and games to boot before being playable. I do not expect to be able to make an emulator compatible with the entire PSX games library and I do not intend to support sound.

TBD

Below lists the resources I used in order to build my emulator. I will be adding to this list in the future.

• PlayStation Architecture: A practical analysis by Rodrigo Copetti

  • A useful overview of the PS1 architecture

• IDT R30xx Family Software Reference Manual

  • Details behavioral functionality of the R30xx family of MIPS microprocessors. The PSX uses a R3000A microprocessor.

• Playstation Specifications - psx-spx

  • Website documentation derived from king Nocash's Nocash PSXSPX Playstation Specifications.

Please checkout the following emulators, which inspired me to make my own. I guarantee they run much better than PSXJun:

• https://github.com/stenzek/duckstation
• https://github.com/VelocityRa/pctation
• https://github.com/dkoluris/pseudo
• https://github.com/JaCzekanski/Avocado