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https://github.com/ran-j/PS2Recomp.git
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Ranieri
669114f3f6
* feat: small fixes on code gen * feat: added code gen test * feat: rename IOP * fix: fix special case on JR feat: added code generator test * feat: ps2 logs now need special macros * feat: a lot of regressions test feat: use test to fix bugs on runtime fix: fix incorrect instructions on code generator feat: added missing decode on r5900 decoder feat: added scissor on rasterizer * feat: better ghidra plugin analyzer fix: fix real bug on function finding on elf analyzer * feat: some logs on GS feat: added more syscalls stubs feat: added more ps2 stubs * feat: added missing stub
Runtime Library
The runtime library provides the execution environment for recompiled code, including:
- Memory management (32MB main RAM, scratchpad, etc.)
- Register context (128-bit GPRs, VU0 registers, etc.)
- Function table for dynamic linking
- Basic PS2 system call stubs
How to use:
Take your decompiled code and place the cpp files on ps2xRuntime/src/runner and header files on ps2xRuntime/include and compile/be happy.
Adding Custom Function Implementations
You can add custom implementations for PS2 system calls or game functions by:
- Creating function implementations that match the signature:
void function_name(uint8_t* rdram, R5900Context* ctx, PS2Runtime *runtime);
- Registering them with the runtime:
runtime.registerFunction(address, function_name);
Advanced Features
Memory Translation The runtime handles PS2's memory addressing, including:
- KSEG0/KSEG1 direct mapping
- TLB lookups for user memory
- Special memory areas (scratchpad, I/O registers)
Vector Unit Support
PS2-specific 128-bit MMI instructions and VU0 macro mode instructions are supported via SSE/AVX intrinsics.
Instruction Patching
You can patch specific instructions in the recompiled code to fix game issues or implement custom behavior.
Limitations
- Graphics and sound output require external implementations
- Some PS2-specific hardware features may not be fully supported
- Performance may vary based on the complexity of the game