There are only a handful of high end chip manufacturers left. The lock in you describe only really applies to Intel (and not that strongly either, they have bee

There are only a handful of high end chip manufacturers left. The lock in you describe only really applies to Intel (and not that strongly either, they have been known to manufacture non-x86/x64 chips in the past). Manufacturers like TSMC are effectively a fab-for-hire, you're unlikely to see them turning down sales just to specialise in a single ISA. https://en.m.wikipedia.org/wiki/TSMC https://en.m.wikipedia.org/wiki/TSMC