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.
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作为长江中游城市群重要成员，站在新起点的宜昌将秉持着这份韧性，如蜡梅一样，不畏困难，奋勇绽放。。搜狗输入法2026对此有专业解读
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