Delete Q1 (maybe my english comprehension is clumsy. The wikipedia doesn't mean CC is opposite of )

csapp3e

Source code from Computer Systems: A Programmer's Perspective, 3rd Edition (2015) by Randal E. Bryant and David R. O'Hallaron. I read global edition although with small errors in that book.

book code location

• Figure 12.26: rw1.c.

two's complement(where also says term origin 'The 'two' in the name' and one's complement 'all 1s') also see p132

miscs

• round to zero -> keep negative number division similar behavior as its absolute (i.e. abs(-5/4)=5/4)

tools

• pdf OCR
  • This is better but it has the timeout limit.
• libgen 1k file torrent part search using aria aria2c --show-files ~/Downloads/r_963000.torrent | grep 13 or TODO by calibre
  • or this calibre search

how to find books

• Use annas although it is just one mirror web.
• Use ebooksworld
• zlib notice not use the scam websites
  • TODO I2P

SE(Stack Exchange)

• check MathJax

proofwiki

• some symbols may be needed to in one line
• notice its timeline may be based on GMT+0

lsp (language server protocal)

• See

where to find codes

• https://rosettacode.org/wiki/Rosetta_Code

learning path

• This from this

valuable websites

• math communitys
• list from this read by favq

github

• its code search is not very good.

interesting community

• icourse ustc

More to read (from this)

• In "What about AI/graphics/pet-topic-X?" it recommends 3 topics although I don't plan to learn them.
• For the starting language, C++ is fine

  I found myself actually not starting with C++... because I showed them BF first. An experienced C++ coder can do e.g. Java at full speed in a matter of weeks. But if you build on a foundation of C++, you will always be on a secure footing.

  • Stop Teaching C just means C should be one prerequisite of C++

    Just because you can learn C++ as an add-on to C doesn’t mean those who know neither should learn C first

  • compared with rust (although most is about C)

    The difference is in C you often don't find the mistake until you run the program and trigger a bug, where Rust would have pointed it out to you with extremely detailed error messages and suggested a fix.

    • The discussion between gbutler69 and ZiCog strays
    • Also said by this "编译器" (We can use translate to read this)

      我用C++已经混了三年的饭吃了，但还只能看到C++的门槛，没法说入了C++的门。

      同理，虽然距离我学习Rust已经过去6年了，我依然感觉我还不会Rust，都是编译器教我写代码。

    • And very important, something I read earlier on my career on Stroustrup’s book : focus on programming techniques, not language features. see Focus on concepts and techniques rather than language-technical details.

most of notes in this md

how do I know csapp

exercises

• This is the 1st time I self-study one CS book. I wrote notes of those exercises with solutions in the book in one paper notebook which is already lost. Although it is a pity, I have learnt from all these exercises.

TODO

https://www.cs.cmu.edu/~213/index.html and homework https://github.com/exajobs/university-courses-collection?tab=readme-ov-file 18-447

Grading Composed from total lab performance (50%), total written assignment performance (20%) and final exam performance (30%).

• do all labs (at least those in 15-213) Read style including GIT, https://www.cs.cmu.edu/~213/faq.html

  • TODO
    • Cord Lab, Shark File System are not in the official list
    • "Malloc (checkpoint)" meaning
  • Buffer Lab, Architecture Lab, Architecture Lab (Y86), Performance Lab are dropped in 15-213

• From syllabus (I give one brief reading based on headings)

  The only graded assignments in this class will be a set of eight labs and a set of eleven written assignments. But I can't access written assignments. Part of them are here needing VIP to full view (probably also for this)

  maybe due to

  Sharing written assignments or exams: Looking at, copying, or supplying an assignment or exam.

• I skipped sample exams.

• To read

  • https://csapp.cs.cmu.edu/3e/students.html Chapter ...

code review

• Skip 12_19.c (I don't remember the logic of that buggy codes).

log

• I updated something all to something like hervey except for files in .git,Windows.vim,*.pem,RECORD,*.reg,*.ipynb,*.code-workspace,*.eps,flypy_phrase.dict.yaml
  • *.code-workspace needs updates.