3 ms·

Also ARM now has a bunch of instructions that are blatantly there for efficient x86 emulation, though ARM won't tell you that in the docs.

• jtl999 6y ago
  IBM POWER9 supports some memory ordering instructions that (as I understand) would in theory be useful for x86 emulation, but a) I'm unsure if anyone actually uses them and b) They are removed from POWER10
• saagarjha 6y ago
  I don't think Apple generates those, though.