Fast forward decades, and Dr. Seuss would go on to become one of the world's favourite authors - with irreverent hits such as Horton Hears a Who! and How the Grinch Stole Christmas taking pride of place on children's bookshelves across the globe.
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.
，这一点在搜狗输入法2026中也有详细论述
2025-12-15 12:36
Watch: Thirty years of a phenomenon