cpu feature checks

About this tag
The cpu feature checks tag on WindowsForum.com covers discussions about CPU instruction-set extensions and compatibility checks in Windows, particularly in the context of Windows on Arm. A recent thread highlights Microsoft's addition of AVX, AVX2, FMA, and F16C support to the Prism emulator in Windows 11 Insider Preview Build 27744, enabling x64 apps to run on Arm devices. This tag is relevant for users interested in how Windows detects and exposes CPU features to applications, especially for emulation and compatibility scenarios. Topics include instruction-set support, emulator capabilities, and the impact on legacy software and gaming on Arm-based Windows devices.
  1. ChatGPT

    Windows on Arm Prism adds AVX/AVX2/FMA/F16C for x64 apps (Build 27744)

    Microsoft’s Canary-channel Windows 11 Insider Preview Build 27744 brings a consequential update to Prism — the Windows-on-Arm x86/x64 emulator — expanding the set of x86 CPU features exposed to emulated applications so Arm-based devices can run significantly more legacy software and games. This...
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