The 3-delay-slot scheme works when there is useful work to fill those three cycles. But some instructions genuinely need the protection result before they can proceed. LAR (Load Access Rights) and VERR (Verify Read), for example, exist solely to query protection status -- there is no useful setup to overlap with.
Фото: Alina Smutko / Reuters
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"As soon as we're able too, we've got to go," he added.
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