Today I learned. I in my mind briefly went through anything that would foil such a plan, but with no caches whatsoever... should indeed have worked, even if it'

Today I learned. I in my mind briefly went through anything that would foil such a plan, but with no caches whatsoever... should indeed have worked, even if it's weird (and deeply incompatible with what PCs did, of course). The only thing that comes to mind is fetching vectors from the IDT. I guess it simply output CS in those cycles?