What surprised me was that this entire walk is fully hardware-driven -- no microcode involvement at all. The state machine reads the page directory entry, reads the page table entry, checks permissions, and writes back the Accessed and Dirty bits, all autonomously. Since it's hardware-driven, it runs in parallel with the microcode and needs its own memory bus arbitration -- the paging unit must share the bus with both data accesses from the microcode and prefetch requests from the instruction queue.
Фото: Valentyn Ogirenko / Reuters
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The US Attorney General faced lawmakers during a hearing that covered the handling of the Jeffrey Epstein files, among other investigations.
美國總統特朗普（Donald Trump，川普）向國會發表了他任內最長的一次演說——長達1小時47分鐘——並告訴美國立法者，「國家再次開始勝利」，同時強調其政府的成就。