Thread

1. modeless · 1789715946 · focus · HN ↗

   As noted in the article, Apple solved this problem six years ago by simply adding an x86-compatible memory ordering mode to their chip when x86 emulation became important. Yet another way Apple's chips lead the industry.

   1. saagarjha · 1789716116 · focus · HN ↗

      Well well well “modeless” has decided to finally see the light of modes

      1. tancop · 1789726996 · focus · HN ↗

         Arm was never modeless. Thumb is a separate encoding with different instruction semantics and Jazelle ran Java bytecode. Both of them need a special branch instruction to enter. What they don't have is legacy modes like real, v8086 or native 16/32 protected that have no reason to exist when a CPU in long mode can run 16 and 32 bit code (in compatibility sub mode) just fine.

         1. sgerenser · 1789728497 · focus · HN ↗

            It was a joke based on the commenter’s username.

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