Ranieri
75d729ce40
* refactor: from guest threads to EE scheduler * feat: bad wip mpeg fix for code veronica * feat: cheap copy from host feat: small perf o vsync tick * feat: added EE clock Hz fix: fix MPEG out of sync with new EE refactor * fix: fix lotr tests * fix: fix cri dtx loading fix: fix wrong mmi instruction translation fix: fix thread info params feat: added EE timers decoder and consumer feat: split SFI and IOP memory to prevent collision and overrides * feat: revert wrong changes * refactor: change GS architecture * feat: IOP emulator refactor: codegen to catch callbacks on mips code feat: added a lot of entries or IOP emulator * feat: analyzer resolve the complete constant-producing sequence with five-instruction backward scan stopped at LUI and therefore * feat: remove recompiled version of GetRomName refactor: split IOP emulator logic feat: added more HLE IOP modules feat: added ps2_path * eat: enhance ELF parser with improved callable entry detection and control flow analysis * feat: update memory hint handling and enhance entry point discovery logic * feat: add SET_GPR_ZE32 macro for zero-extending loads with unsigned semantics * refactor: Refactor PS2 IOP Host Adapter and Memory Management feat: Added PS2Vfs for virtual file system operations, including file opening, reading, writing, and path resolution. feat: Improve VIF1 data processing to handle GIF image packets more efficiently. * feat: added a lot of tests * fix: fix texture caching feat: wip multi version on dbcman * feat: remove LLE IOPs
ps2xIOP
ps2xIOP runs original IRX modules on an R3000A interpreter, with a virtual
IOP kernel providing imports without a PS2 BIOS. The C++20 static library
ps2_iop / ps2x::iop is linked into ps2xRuntime.
Execution policy
Game-specific IOP code executes from IRX modules. There is no game-profile selection or native profile-plugin loader. A physical IRX RPC server is authoritative for its SID.
Generic HLE services remain available when no loaded IRX provides an endpoint:
| Service | SID | Activation |
|---|---|---|
| MCSERV | 0x80000400, 0x80000480 |
Recognized module load |
| LIBSD | 0x80000701 |
Recognized module load |
| DBCMAN | 0x80001300 |
Recognized module load |
These services are dormant before module load and after reset or the final module stop. Unknown modules fail to load; unknown RPC SIDs remain unhandled. Games previously using TSNDDRV, CRI DTX, CLFILE, SOUND or SDRDRV profiles now require their IRX modules and support for the imports and hardware they use.
Lifecycle and transport
reset()clears loaded modules, HLE service state and emulator state.loadModule(...)/loadModuleBuffer(...)load and start an IRX.stopModule(...)releases a module and its owned state.runEeCycles(...)advances the IOP from EE cycle accounting.selectRpcAbi(...),handleRpc(...)andonSifTransfer(...)connect SIF transport.
IOP RAM is separate from EE RAM. The transport copies data through the IOP
memory accessors; SIF notifications do not mirror bytes into equal-numbered EE
addresses. RpcResult describes completion and dispatch actions for the runtime.
Link with target_link_libraries(my_runtime PRIVATE ps2x::iop). The public API
is iop_subsystem.h; PS2Runtime owns its
subsystem and host adapter.
Diagnostics and tests
debugSnapshot() exposes emulator cycle/instruction counts, loaded module,
thread and RPC-server counts, generic service metrics and load diagnostics.
The runtime debugger renders these in the IOP/SIF tab.
Build standalone tests with:
cmake -S ps2xIOP -B out/build/iop-tests -DPS2X_IOP_BUILD_TESTS=ON
cmake --build out/build/iop-tests
ctest --test-dir out/build/iop-tests --output-on-failure
The suites cover IRX execution, RPC, imports, version resolution and generic
HLE compatibility. ps2x_tests also covers runtime SIF RPC/DMA integration.