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atq2119
6y ago
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That's true, though MWAIT can only be used from kernel mode. At least the docs say that you get a #UD exception if you attempt to use it from user mode.
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the8472
6y ago
Right, there's UMWAIT[0] for that, but that's quite new.
[0]
https://www.felixcloutier.com/x86/umwait
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