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

posted by janrinok on Monday May 22, @11:56AM   

takyon writes:

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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Original Submission

• Re:What? (Score: 1, Interesting) by Anonymous Coward on Monday May 22, @01:58PM

  by Anonymous Coward on Monday May 22, @01:58PM (#1307324)

  OK so they have a 64-only design for the future, cool. Ditch legacy 8080 binary compatibility, sad to see it go but whatever.

  Actual 8086 binary compatibility hasn't even really been a thing on modern Intel CPUs anyway, since Intel completely removed the A20 gate in Haswell (ca. 2013).

  Parent

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