Wolzard
Member
RPCS3, the popular PlayStation 3 emulator, now officially supports the ARM64 architecture, enabling native operation on Linux, macOS, and Windows ARM64 devices. This announcement highlights extensive development efforts, groundbreaking solutions for architectural challenges, and diverse platform showcases.
Key Highlights
- Background and Development History
- ARM64 support began in 2021, following the release of Apple's M1 chips.
- Initial builds were functional but performed poorly due to limited compatibility with PS3 architecture.
- Collaboration among developers, including Nekotekina and kd-11, enabled significant progress, with notable strides in graphics and JIT LLVM recompilers.
- Overcoming Technical Challenges
- ARM64 posed unique hurdles, such as differences in stack behavior and 16K memory page size (vs. PS3's 4K).
- Customized LLVM transformers and architectural tweaks allowed smoother emulation and improved performance.
- By mid-2024, many commercial PS3 games ran well on ARM64 platforms, marking a significant milestone.
- Platform Showcases
- Apple M1 (macOS and Asahi Linux): Delivered strong performance, particularly under macOS, leveraging optimized graphics layers like MoltenVK.
- Raspberry Pi 5: Despite hardware limitations, it managed to run several games at PSP-level resolutions (e.g., 272p) for playable performance.
- Windows ARM64: Experimental support achieved using msys2 and clang, with limitations due to testing hardware scarcity.
- Available Downloads and Future Plans
- Linux ARM64 and macOS ARM64 binaries are now available alongside x64 versions.
- Windows ARM64 binaries are not yet distributed, requiring local compilation by users.