Comment on Expanded Steam gaming compatibility likely coming to Arm chips with hundreds of Windows games — Valve testing ARM64 Proton compatibility layer

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steventhedev@lemmy.world ⁨2⁩ ⁨months⁩ ago

I thought FAT binaries don’t work like that - they included multiple instruction sets with a header pointing to the sections (68k, PPC, and x86)

Rosetta to the best of my understanding did something similar - but relied on some custom microcode support that isn’t rooted in ARM instructions. Do you have a link that explains a bit more in depth on how they did that?

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