Microsoft Implements New Prism

December 2, 2024opensource
Windows on ARM Gets Major Gaming Boost with Prism Update
Microsoft has just rolled out a game-changing update to its Prism emulator in the latest Windows 11 Insider Preview (Build 27744), marking a significant milestone for Windows on ARM devices. This update brings enhanced compatibility for legacy applications and, most importantly, opens up new possibilities for gaming on ARM-based PCs.
The Evolution of Prism
The updated Prism emulator introduces support for critical CPU extensions including:
  • AVX (Advanced Vector Extensions)
  • AVX2
  • BMI (Bit Manipulation Instructions)
  • FMA (Fused Multiply-Add)
  • F16C (16-bit Floating-Point Conversion)
These additions are particularly significant for gaming and creative applications that rely heavily on these processor instructions for optimal performance.
Gaming Takes Center Stage
For gamers, this update is particularly exciting. The enhanced Prism emulator now enables support for popular titles that were previously incompatible with ARM-based Windows devices. Notable games that can now potentially run on ARM PCs include:
  • Starfield
  • Helldivers 2
  • Other modern titles requiring AVX2 support
This development represents a significant step forward in making ARM-based Windows devices viable for gaming, though some limitations still exist.
Creative Professional Benefits
The update isn't just about gaming. Creative professionals using Adobe Premiere Pro 2025 will find their software now works on ARM devices. This compatibility is already being tested in limited deployment on retail versions of Windows 11 version 24H2, showcasing Microsoft's commitment to professional creative workflows.
Technical Deep Dive
The update specifically targets 64-bit x86 (x64) applications, enabling them to run under emulation with expanded CPU feature support. However, it's important to note that 32-bit applications won't detect these new features, as the current preview only supports x64 applications.
Key Technical Improvements:
  • Enhanced virtual CPU capabilities for x64 emulated applications
  • Improved instruction set architecture support
  • Better compatibility with modern software requirements
Additional Features
Beyond the Prism updates, this Windows 11 preview build includes:
  • A new on-screen gamepad keyboard with Xbox controller support
  • Improved Task Manager features
  • Various bug fixes and performance improvements
Looking Ahead
This update represents a significant step forward in Microsoft's ARM strategy. The improved emulation capabilities suggest a future where the distinction between ARM and x86 platforms becomes increasingly irrelevant for end users, particularly in gaming and creative applications.
Current Limitations
While the update brings significant improvements, users should be aware of some current limitations:
  • 32-bit applications don't benefit from the new CPU feature support
  • Some games with specific anti-cheat systems may still face compatibility issues
  • Performance may vary depending on the complexity of emulated applications
Conclusion
The latest Prism emulator update marks a pivotal moment in the Windows on ARM journey, particularly for gaming enthusiasts and creative professionals. As Microsoft continues to refine and improve the emulation layer, we can expect to see even more applications and games becoming accessible on ARM-based Windows devices.
This development could be particularly significant for the future of mobile gaming on Windows and the broader adoption of ARM-based PCs in gaming and creative workflows. With major titles like Starfield potentially becoming playable on ARM devices, we might be witnessing the beginning of a new era in Windows computing.