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by may_mccheese
813 days ago
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if you're a fan of DEFCON it has been found that there are weirdo instructions on an unnamed x86 CPU that activate some sort of secondary RISC core with completely different instructions. it's not unreasanable to hypotheticate that such secret cores may exist on modern processors, and may be hidden by more than some weirdo instruction i.e. run these 18 instructions in a row with these register values and these memory values at these addresses and this timing, and then and only then will the suber secret risc core activate https://media.defcon.org/DEF%20CON%2026/DEF%20CON%2026%20pre... |
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