0565d01744
Two gaps around the VOP3 signed multiplies caused whole-shader SPIR-V compilation failures: - v_mul_lo_i32 (0x16B) decoded correctly but had no emission case, so any shader containing it failed with "unsupported vector opcode VMulLoI32". Its low 32 result bits are identical to the unsigned multiply in two's complement, so it now shares the v_mul_lo_u32 IMul case. - v_mul_hi_i32 (0x16C) was missing from the VOP3 decode table entirely and decoded as an opaque Vop3Raw16C, which also fails at emission. It is now decoded and emitted by sign-extending both operands to 64 bits, multiplying, and taking the upper 32 bits of the product, mirroring the existing v_mul_hi_u32 pattern. Opcode numbers verified against LLVM's AMDGPU backend (VOP3Instructions.td): V_MUL_LO_U32 gfx10 = 0x169, V_MUL_HI_U32 = 0x16a, V_MUL_LO_I32 = 0x16b, V_MUL_HI_I32 = 0x16c. Behavior verified by decoding and fully compiling a synthetic program containing all four multiplies: previously the 0x16C word decoded as Vop3Raw16C and compilation failed at the v_mul_lo_i32 instruction; now all four decode by name and the program compiles to SPIR-V. Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
SharpEmu
An experimental PlayStation 5 emulator for Windows, Linux and macOS.
Join our Discord for development updates, compatibility discussions, support, and community chat.
Warning
Currently the primary development target is Windows.
Warning
SharpEmu is an experimental PS5 emulator developed from scratch in C#. The current focus is on accuracy and infrastructure setup rather than game-specific compatibility.
Info
SharpEmu is an emulator project currently in its early stages of development.
This project is developed purely for research and educational purposes. There are no commercial goals associated with it. We enjoy learning about system architecture and reverse engineering.
SharpEmu focuses exclusively on the PlayStation 5.
Our goal is not to emulate PS4 games, as there is already an excellent emulator dedicated to that platform: ShadPS4.
Status
The emulator can currently load the eboot.bin of real games, execute native CPU instructions, and partially handle kernel-related functionality. However, several critical components are still missing.
Current capabilities include:
- Loading
eboot.binand.elffiles - Executing native CPU instructions
- Reading basic game metadata (title, version, etc.)
- Loading system modules (
prx/sys_module) - Partial support for some kernel functions
FiberandAMPRexports- PlayGo scenarios
- Initial loading game files
- Shader/resource submits and AGC initial
- Video outputs in some games
Some games have reached like sceVideoOut and AGC stages.
Currently the project primarily targets Windows. Cross-platform support (Linux and macOS) is planned, but development is currently focused on Windows to simplify early-stage debugging and iteration.
Using
- Build or Publish project or download in release tab.
- Open Powershell.
- Run Emulator GUI.
- Or command:
.\SharpEmu "eboot.bin" 2>&1 | Tee-Object -FilePath "log.txt"
Games Tested
-
Demon's Souls Remake
- Demon's Souls [PPSA01341]
- Demon's Souls is now video loop. Shaders are ready to be converted to SPIR-V/Vulkan. We are continuing our work on this.
-
Poppy Playtime Chapter 1
-
SILENT HILL: The Short Message
-
Dreaming Sarah
- Dreaming Sarah [PPSA02929]
- Real texture rendering for this game;
Important
This project does not support or condone piracy.
All games used during development and testing are dumped from consoles that we personally own.
Users are expected to use legally obtained copies of their games.
Build
- Install the .NET SDK.
- Clone the repository:
git clone https://github.com/par274/sharpemu.git - Open the solution file (
SharpEmu.slnx) in VSCode. - Build the project:
dotnet buildordotnet publish - Build artifacts will be located in the
artifactsdirectory.
Disclaimer
SharpEmu is an experimental emulator intended for research and educational purposes.
This project does not contain any copyrighted system firmware, game data, or proprietary PlayStation assets.
Special Thanks
The following projects were extremely helpful during development:
-
ShadPS4
Helped with understanding the basic architecture of the PlayStation 4. -
Kyty
One of the few PS5 emulator projects available and very useful for studying native code execution. -
Ryujinx
Provided valuable references for filesystem handling and low-level C# implementation patterns.
License
Contributing
Before opening an issue or pull request, please read our contribution guidelines:
The guide covers:
- Coding style and formatting
- AI-assisted contributions
- Pull request expectations
- Testing guidelines
- Legal and reverse engineering policy