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A comment on New x86 micro-op vulnerability breaks all known Spectre defenses. Parent comment

Re:New x86 micro-op vulnerability breaks all known Spectre d... by fulafel on Saturday May 01, 2021 @03:16PM (#27008988)
> is not possible to design a CPU such that execution of arbitrary instructions has no observable side-effects, especially if the CPU is speculating

As a counter example, how about the 8086?

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