ps2-web-recomp

What is ps2-web-recomp?

ps2-web-recomp translates PlayStation 2 game executables into WebAssembly for direct execution in modern web browsers. Instead of interpreting the Emotion Engine processor, the tool statically recompiles the game code into C++ and compiles it ahead of time. A separate runtime emulates the console operating system and hardware, handling graphics output through WebGPU.

The project includes scripts that take a user-supplied disc image and generate a standalone web page on the local machine. It uses HTTP range requests to stream game data efficiently, downloading only the executable initially. Tested titles include Gran Turismo 4 and God of War II, which run at full speed with preserved audio, memory card saves, and accurate floating-point behavior.

This approach bypasses traditional interpreter overhead by maintaining the original R5900 architecture quirks, including vector unit timing and branch delay slots. The repository provides the conversion tools and runtime, while all game assets must be provided by the user.

ps2-web-recomp features

• Static recompilation of PS2 machine code to WebAssembly
• WebGPU-based hardware acceleration for rendering
• Local conversion scripts for user-provided disc images
• HTTP range request support for efficient disc streaming
• Accurate emulation of PS2 floating point and vector units
• Browser-based memory card save functionality
• Runs tested titles at native console frame rates

Who uses ps2-web-recomp and for what

• Play classic PlayStation 2 titles directly in a web browser
• Test high-performance WebAssembly compilation techniques
• Preserve and access legacy console software without physical hardware
• Stream large game assets efficiently using HTTP range requests
• Develop custom web-based players for older console architectures

ps2-web-recomp FAQ

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