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.
I was making progress on that page but it didn’t feel like a Red Blob Games page. The page started out with tons of shell commands, and then showed lots of code. It felt like a page that only I would find useful. So I started over and designed a “concepts” page. In redesign 4 I focused on what effects I wanted, how SDF works, and how to use it to create those effects. I again reduced the scope by removing the implementation details. What I had already written, I moved to a separate (unpolished) page. And I never wrote a standalone downloadable project like I originally wanted.
。业内人士推荐WPS官方版本下载作为进阶阅读
Жители Санкт-Петербурга устроили «крысогон»17:52
第一百二十三条 受到罚款处罚的人应当自收到处罚决定书之日起十五日以内，到指定的银行或者通过电子支付系统缴纳罚款。但是，有下列情形之一的，人民警察可以当场收缴罚款：