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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.
。关于这个话题，WPS官方版本下载提供了深入分析
自2009年起，广东省中医院每年举办“杏林寻宝”活动，引进64项特色疗法，组织跟师51项，培养院内传承人330余人次，为22名献宝人建立名医工作室并给予经费扶持，为7项特色疗法组建中医特色疗法专业小组。
H.P. Lovecraft – The Call of Cthulhu