> sti is expensive as well; iirc just as expensive on most processors as
> popf,
On K8 STI is 4 cycles.
> although I don't have hard numbers to back this up on hand. An
> _unlikely_ jcc + popf? is better than a sti, for sure, but a likely
> jcc+popf could cost more than a jcc+sti, depending on model.
99.9999% of all restore_flags just need STI.
-Andi
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