4 ms·

ARM also has some decades of cruft attached to it.

• r00fus 6y ago
  ARMv8, ie, AArch64 is a redesign/new, and entirely 64 bit with legacy (32bit) support mode tacked on. The design was done to be able to remove legacy without another redesign. To my understanding, this is quite unlike AMD64 (ie, Intel's current 64 bit ISA licensed from AMD) - which extended x86.
  • astrange 6y ago
    The 32-bit mode is optional; M1 doesn't even support it.
  • sitkack 6y ago
    AMD64 is a really beautiful design for the constraints it was operating under. Does anyone know who(mses) designed the instruction set?
• danlugo92 6y ago
  No, the aechitecture used in m1 is from 2012