书单：《You Are Not Expected to Understand This: How 26 Lines of Code Changed the World》，作者 Torie Bosch [1]。偶然在 Twitter 上刷到这本书就买了。全书分成了 26 篇短文，讲述了 26 段意义重大的代码（定义比较宽泛）……
Book: You Are Not Expected to Understand This: How 26 Lines of Code Changed the World by Torie Bosch [1] Came across this book randomly on Twitter and picked it up. The book is broken into 26 essays about significant pieces of code (defined vaguely),…
书名也是这个：《You Are Not Expected to Understand This: How 26 Lines of Code Changed the World》。我赞成，这名字起得很烂，听着像是一本通篇讲某段 26 行代码的技术书，但其实是 26 篇互不相关的随笔散文，关于……
It's the title of the book, too. *You Are Not Expected to Understand This: How 26 Lines of Code Changed the World." I agree, it's a terrible title, it sounds like a technical book about a single 26-line snippet of code, but it's actually a series of 26 unrelated essays about…
……286 版本的 MCW Coherent OS 依然只允许最大 64 kB 的代码程序体积——外加 64 kB 的数据。限制非常死。对于早期 Unix 风格来说还行（比如到 UNIX V6 为止，就是大名鼎鼎的 Lions Book 里带有“你不需要看懂这里”那句注释的时期）。386 保护模式给了你 4GB 空间，而且可以自由选择段大小，这意味着所有人都把段大小直接设为“全部内存拿来吧您嘞（ALL THE RAM PLS KTHXBYE）”。这样一来你就得到了平坦寻址：所有……
…the 286 version of MCW Coherent OS still only allowed a maximum program size of 64 kB of code -- plus 64 kB of data. Very limiting. OK for early-Unix-style (say up to UNIX V6, of Lions Book fame and "you are not expected to understand this" comment.) 386 protected mode gave you 4GB of space, and you could choose the segment size, which meant everyone chose a segment size of ALL THE RAM PLS KTHXBYE. That meant you got flat addressing: all…
…those the chip was mapped to, and it never saw them. Adjusted the code to the (new) correct address range. Worked like a charm. But I feel bad for the next grad student who had to work on that robot. "You are not expected to understand this."
你还可以亲眼见识到 swtch() 的精妙之处，以及那句原汁原味的“你不需要看懂这里”（You are not expected to understand this）注释。强烈推荐。
And you can witness the glory of swtch() and the original "You are not expected to understand this" comment. Highly recommended.
书单：《You Are Not Expected to Understand This: How 26 Lines of Code Changed the World》，作者 Torie Bosch [1]。偶然在 Twitter 上刷到这本书就买了。全书分成了 26 篇短文，讲述了 26 段意义重大的代码（定义比较宽泛）……
Book: You Are Not Expected to Understand This: How 26 Lines of Code Changed the World by Torie Bosch [1] Came across this book randomly on Twitter and picked it up. The book is broken into 26 essays about significant pieces of code (defined vaguely),…
书名也是这个：《You Are Not Expected to Understand This: How 26 Lines of Code Changed the World》。我赞成，这名字起得很烂，听着像是一本通篇讲某段 26 行代码的技术书，但其实是 26 篇互不相关的随笔散文，关于……
It's the title of the book, too. *You Are Not Expected to Understand This: How 26 Lines of Code Changed the World." I agree, it's a terrible title, it sounds like a technical book about a single 26-line snippet of code, but it's actually a series of 26 unrelated essays about…
……286 版本的 MCW Coherent OS 依然只允许最大 64 kB 的代码程序体积——外加 64 kB 的数据。限制非常死。对于早期 Unix 风格来说还行（比如到 UNIX V6 为止，就是大名鼎鼎的 Lions Book 里带有“你不需要看懂这里”那句注释的时期）。386 保护模式给了你 4GB 空间，而且可以自由选择段大小，这意味着所有人都把段大小直接设为“全部内存拿来吧您嘞（ALL THE RAM PLS KTHXBYE）”。这样一来你就得到了平坦寻址：所有……
…the 286 version of MCW Coherent OS still only allowed a maximum program size of 64 kB of code -- plus 64 kB of data. Very limiting. OK for early-Unix-style (say up to UNIX V6, of Lions Book fame and "you are not expected to understand this" comment.) 386 protected mode gave you 4GB of space, and you could choose the segment size, which meant everyone chose a segment size of ALL THE RAM PLS KTHXBYE. That meant you got flat addressing: all…
……那块芯片映射到的那些地址，芯片根本看不到。把代码调整到了（新的）正确地址范围。跑得非常顺畅。但我为下一位得在这个机器人上干活的研究生感到默哀。“你不需要看懂这里。”
…those the chip was mapped to, and it never saw them. Adjusted the code to the (new) correct address range. Worked like a charm. But I feel bad for the next grad student who had to work on that robot. "You are not expected to understand this."