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by lolsowrong
89 days ago
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Can’t find the pdf, but it’s all related to the zentool stuff: https://github.com/google/security-research/blob/master/pocs... Tavis spells it out there pretty quickly: “ The simplest instructions (add, sub, mov, etc) are all implemented in hardware. The more complicated instructions like rdrand, fpatan and cmpxchg are microcoded. You can think of them as a bit like calling into a library of functions written in that RISC-like code.” |
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