4 ms·

Apple isn’t using any instructions from their CPUs

• monocasa 6y ago
  There's all sorts of CPU related patents that aren't related to an individual ISA.
  • valuearb 6y ago
    Then how has Apple not gotten sued over the Ax series of processors? Or the iPhone, the iPad, the PPC Macs, etc?
    • monocasa 6y ago
      Because they have their own warchest of patents from acquiring about every decent processor startup over the past 15 years that would allow them to counter sue, and microarchitectual details are under incredibly strict NDAs to where it's an uphill battle to even prove that Apple is using any of those patented techniques to begin with. Also, the PowerPC macs weren't their chips, those were IBM and Motorola for the most part (Apple did have some input into Altivec, but didn't do anything from the RTL down AFAIK).
      • valuearb 6y ago
        You are contradicting yourself. Apple hasn’t been sued because of their patent portfolio, but they still have that. Little changes with this transition, they are still building computing devices around the ARM instruction set.
        • monocasa 6y ago
          I'm not contradicting myself; all I've said is that patents matter across ISA boundaries, but Apple has a lot of patents. If another company were to try this without a warchest the size of Apple's, they'd be sued into oblivion.