7ab6de1b93
* [ShaderCompiler] Materialize directly for plans whose cached inputs never repeat The materialization cache records every guest word a draw reads and keys the result on the draw's user data. Most Silent Hill draws point their user data at per-draw constants, so only 8% of lookups hit and every miss still paid for recording the reads and storing an entry. A plan now counts its lookups and hits; after 64 lookups with fewer than one hit in eight it walks its resources directly and probes the cache again on every 64th draw. On the SH title menu the command worker's busy time per draw fell from ~125 to ~111 us (cache hit rate of the remaining lookups 70%). * [GPU] Scan a pixel program's interpolated attributes once per decoded program Every draw scanned all instructions of its pixel program twice, once through a LINQ chain with Distinct/Order/ToArray, to count interpolated attributes and the vertex outputs they read. The sorted attribute set is a property of the decoded program, so it is computed once and kept beside it. Pixel input resolution on the SH menu dropped from ~14 us to a few us per draw. |
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| assets/images | ||
| docs | ||
| scripts | ||
| src | ||
| tests | ||
| tools | ||
| .editorconfig | ||
| .gitignore | ||
| CONTRIBUTING.md | ||
| Directory.Build.props | ||
| Directory.Packages.props | ||
| LICENSE.txt | ||
| README.md | ||
| REUSE.toml | ||
| SharpEmu.slnx | ||
| global.json | ||
| nuget.config | ||
README.md
SharpEmu
An experimental PlayStation 5 emulator for Windows, Linux and macOS.
Join our official Discord server for development updates, compatibility discussions, support, and community chat.
[!IMPORTANT] Official channels: Only sharpemu.app and the links listed in this GitHub repository are affiliated with SharpEmu. Any other websites, accounts, or donation pages are unofficial and unauthorized.
[!NOTE]
SharpEmu supports Windows x64, Linux x64, and macOS x64. Apple Silicon Macs can run the macOS x64 build through Rosetta 2, and Windows on ARM devices (e.g. Snapdragon) can run the Windows x64 build through Windows' built-in x64 emulation.
[!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.
Games Tested
| Demon's Souls Remake | ASTRO BOT |
|---|---|
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| ASTRO's PLAYROOM | Dead Cells |
|---|---|
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| God of War: Sons of Sparta | Tomb Raider V Remastered |
|---|---|
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Status
The emulator can currently load the eboot.bin of real games, execute native CPU instructions, and partially handle gpu-related functionality. Included 3D games.
SharpEmu supports Windows, Linux, and macOS hosts. Video output uses Vulkan on Windows and Linux, and MoltenVK on macOS. Platform support is still experimental, so compatibility and performance vary by game, operating system, and GPU driver.
Using
Download the release archive for your operating system, extract it, and launch
SharpEmu with the path to a legally obtained game's eboot.bin.
Or command line;
Windows PowerShell:
.\SharpEmu.exe "C:\path\to\game\eboot.bin" --log-to-file
Linux and macOS:
chmod +x ./SharpEmu
./SharpEmu "/path/to/game/eboot.bin" --log-to-file
SharpEmu supports environment variables that can be configured from the GUI. Undocumented variables are listed here: docs/sharpemu-gui-undocumented-env-vars.md
You can set them per game or globally in the GUI, or pass them directly through the CLI.
A Vulkan-capable GPU and current graphics driver are required. The macOS release includes the MoltenVK Vulkan implementation.
[!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 version specified in
global.json. - Clone the repository:
git clone https://github.com/sharpemu/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
Support
Support SharpEmu via GitHub Sponsors or cryptocurrency. Every contribution helps fund ongoing development and long-term maintenance. GitHub Sponsors is the preferred way to support the project, but cryptocurrency donations are also appreciated.
ETH/USDT
0xF315F5d986c790bB3A58DbE60F1B2760997dEd82
BTC
bc1qmr9k8899njys5ny63xsues4jgmkk96erslrkmv
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