Don wrote:
The code below compiles to a single machine instruction, yet the results are CPU manufacturer-dependent.
This is awesome work, Don. Kudos to you, David and Dmitry.BTW, I've read that fine-grained CPU detection can be done, beyond what CPUID gives, by examining slight differences in FPU results. I expect that *, +, -, / should all give exactly the same answers. But the transcendentals, and obviously yl2x, vary.
