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A comment on What happened to clockless computer chips?. Parent comment

Re:What happened to clockless computer chips? by nine_k on Monday February 27, 2017 @07:59AM (#13743846)
Modern x86 with its out of order execution is already pretty "async". Little changed for programmers, except those writing very low-level code, or compilers.
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Re:What happened to clockless computer chips? by joe563323 on Wednesday March 01, 2017 @01:10AM (#13761629)
Does this mean not all instructions are treated equal ? Some instructions need to make an extra check before or after the execution OR some instructions will be deprecated and new instructions need to be added ?
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