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https://github.com/ran-j/PS2Recomp.git
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Aslan Hud
c1e98c9398
- Add IOP with RPC handling (handleRPC, LibSd SID) and init/reset using RDRAM - Add IOP audio layer for LibSd RPC (handleLibSdRpc) - Add PS2AudioBackend with VAG decode, onVagTransfer/onSoundCommand, raylib playback - Add PSPadBackend with readState and raylib input - Add IOP RAM mapping in Memory (getIOPRAM) for EE↔IOP access - Add fio syscalls: fioOpen, fioRead, fioWrite, fioClose, fioLseek, fioMkdir - Add VAG accumulation for fio reads (multi-chunk VagAccumEntry) - Add ps2_log.h call-stack logger (tab-indented, Debug only, ps2_log.txt next to exe) - Code generator: emit ps2_log include and PS_LOG_ENTRY for full functions - Recompiler: emit ps2_log include and PS_LOG_ENTRY for stubs - Runtime: print "[PS2 LOG] Logs saved at <path>" on exit (Debug only)
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