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It's Over: Intel Publishes "x86-S" Specification, for 64-Bit Only x86 Architecture

Accepted submission by takyon at 2023-05-21 02:24:29

Intel Publishes "X86-S" Specification For 64-bit Only Architecture []

Intel quietly released a new whitepaper and specification for their proposal on "X86-S" as a 64-bit only x86 architecture. If their plans workout, in the years ahead we could see a revised 64-bit only x86 architecture.

Entitled "Envisioning a Simplified Intel Architecture", Intel engineers lay the case for a 64-bit mode-only architecture. Intel is still said to be investigating the 64-bit mode-only architecture that they also refer to as "x86S". Intel is hoping to solicit industry feedback while they continue to explore a 64-bit mode only ISA.

[...] Under this proposal, those wanting to run legacy 32-bit operating systems would have to rely on virtualization. To further clarify, 32-bit x86 user-space software would continue to work on modern 64-bit operating systems with X86-S.

Also at Tom's Hardware [].

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