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Rosetta supports 32-bit code execution via a very basic (segment-level) facility, designed for use by Wine.

• jsheard 3y ago
  TIL. I'm surprised they went out of their way to accomodate emulating 32-bit Windows apps, when they cut off 32-bit Mac apps completely.
  • plorkyeran 3y ago
    Dropping 32-bit macOS apps let them drop the second copy of every system library, and possibly even more importantly, support for the old obj-c runtime that was weird and different from the runtime used on every other platform. Supporting 32-bit wine is a much smaller burden.
    • MBCook 3y ago
      Which is especially useful on phones that are much more memory constrained than desktops.