4 ms·

They've done this 2 to 5 times before, depending on whether you count the 32-bit to 64-bit conversions and iOS. 68k->PPC, PPC->PPC64, PPC->x86, x86->x86-66, ar

They've done this 2 to 5 times before, depending on whether you count the 32-bit to 64-bit conversions and iOS. 68k->PPC, PPC->PPC64, PPC->x86, x86->x86-66, arm->arm64

jdxcode 6y ago
what is x86-66?
- MarkSweep 6y ago
  X86-64 is the 64-bit version of x86, also known as AMD 64 and Intel 64. The first computers that apple shipped with Intel processors only supported x86 (32-bit). The most recent version of macOS removed support for x86, only allowing 64-bit apps to run. https://en.wikipedia.org/wiki/X86-64 https://en.wikipedia.org/wiki/X86-64
  - vdfs 6y ago
    Yes, but what is what is x86-66?
    - rurban 6y ago
      A typo
timw4mail 6y ago
I'm not sure you could say they fully transitioned from PPC to PPC64, as only the G5s were 64bit, and laptops never got the G5. I think the x86 transition would have been easier if it started out 64bit, but that's probably Intel's fault. More practically, the transitions so far have been like this: 68k -> PPC (With full 68k emulation) -> x86 (with partial PPC emulation) -> x86_64