os01 VS wtfjs

Write an OS from scratch

(Here is the link - didn't quite get the image/link combo right in the original post!). I'm writing a series of posts about coding your own operating system. After reading Operating Systems: From 0 to 1 I found that some of the code does not work, so this first post walks you through writing a bootloader similar to that of chapter 7. It also adds some context that I would have found useful when I originally read the book, such as how 16-bit real mode works and some assembly programming information. I'm hoping to take a different approach to posts in the series by borrowing pieces of other operating systems and discussing how they are implemented in an effort to keep things simple and focus on fundamentals (even Linus started out with a detailed reading of MINIX).

Starting a series about writing your own operating system. After reading Operating Systems: From 0 to 1 I found that some of the code does not work, so this first post walks you through writing a bootloader similar to that of chapter 7. I'm hoping to take a different approach to posts in the series by borrowing pieces of other operating systems (even Linus started out with a detailed reading of MINIX).

Very quickly skimming through the various chapters, it appears that this is gentle introduction as attention has been made on clear and verbose explanations, supplemented with diagrams. Comparable other "courses" could be osdev101 [1] and "Writing an operating system from scratch" [2].

[1] https://github.com/tuhdo/os01/blob/master/Operating_Systems_...

[2] https://www.cs.bham.ac.uk/~exr/lectures/opsys/10_11/lectures...

You need to be aware of how it works on a hardware level but probably not an expert, for a better explanation see: https://github.com/tuhdo/os01

Operating Systems from 0 to 1

Me in the interview: "Generally, no, a variable can only be assigned one numeric value at a time. However, Javascript is famous for unpredictable behaviors in variable comparison statements, for instance [] == ![]. There's actually a whole library built around documenting this type of behavior this for comedic value, and other more serious libraries geared towards solving the problem. So it's possible that some obscure variable assignment scenario would result in that line evaluating as true, but it's not something you'd expect to encounter in the real world. This has gotten a lot better with typescript and es2022, but still something you need to watch for a bit."

I do see that point of view, didn't think of that, there are some aspects of go which are a bit weird if you never touched lower abstraction languages, yet once you learn what they are, you are all set and you can code in anything. go has the least amount of gotchas I have seen in any programming language. compare it with loads of the weird stuff javascript does https://github.com/denysdovhan/wtfjs and go is like heavenly lol

Its a very poorly designed language. Its syntax and semantics are often confusing and unpredictable. There is no well defined mental model of how constructs work in this language.

WTF JS

😎 A great guide to Javascript that is both simple and wonderful, but also difficult and fun that seems like bullshit. -> wtfjs