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And the market also chose ARM's AArch64 instruction set, despite the ARM installed base being wider than x86 and a backwards incompatible break from the past. T

And the market also chose ARM's AArch64 instruction set, despite the ARM installed base being wider than x86 and a backwards incompatible break from the past. The secret? Supporting both ISAs and switching instruction sets on exceptions. The lesson I take from history is that there is no need to maintain ISA compatibility as long as the old mode is accessible on a process level.

imtringued 10y ago
>The secret? Supporting both ISAs and switching instruction sets on exceptions. The secret is that Apple controls their hardware/appstore and android apps are ISA independent.
- adrianratnapala 10y ago
  Whot? Didn't the AMD64 architecture spank Itanium in the marketplace long before the iPhone became a big deal?