Uploaded September 2023 | Updated September 2026, 2 weeks ago
In this installment of //Source Dive//, we're back in xv6, looking at how the operating system layers abstractions. The "console" is a great example, with a low-level driver rooted in the hardware, to an abstract console, to the printf function that eventually outputs characters to the screen.
=[ 🔗 Links 🔗 ]=
🐋 RISC-V Docker Image: github.com/francisrstokes/rv-toolchain-docker/pkgs/container/rv-toolchain-docker
🎥 Series Playlist:
🗣 Discord: discord.gg/FPWaVgk
⭐️ Patreon: patreon.com/lowleveljavascript
💻 Github Repo: github.com/mit-pdos/xv6-riscv
In this installment of //Source Dive//, we're back in xv6, looking at how the operating system layers abstractions. The "console" is a great example, with a low-level driver rooted in the hardware, to an abstract console, to the printf function that eventually outputs characters to the screen.
=[ 🔗 Links 🔗 ]=
🐋 RISC-V Docker Image: github.com/francisrstokes/rv-toolchain-docker/pkgs/container/rv-toolchain-docker
🎥 Series Playlist:
🗣 Discord: discord.gg/FPWaVgk
⭐️ Patreon: patreon.com/lowleveljavascript
💻 Github Repo: github.com/mit-pdos/xv6-riscv
![Twos Complement [The Bits And Bytes Of Binary ep.6]](https://i.ytimg.com/vi/vgbOTf8lgTQ/mqdefault.jpg "Twos Complement [The Bits And Bytes Of Binary ep.6]
This mini series is all about binary. Over the course of the series, well be building a library that gives us precise control of every bit and operation.
Youll learn how the logical and arithmetic operations work, how different kinds of numbers are encoded, how to set, clear and toggle bits, and how we can create representations of structured binary data.
1. Bits
2. Operations
3. Unsigned Numbers
4. Addition
5. Zero Extension
6. Twos complement
7. Overflow Addition and Sign Extension
8. Shifting
9. Setting, Clearing, and Toggling Bits
10. Endianness
11. Structures
=[ 🔗 Links 🔗 ]=
💌 Updates to your inbox: https://tinyletter.com/lowleveljavascript
⭐️ Patreon: https://www.patreon.com/lowleveljavascript
🗣 Discord: https://discord.gg/FPWaVgk
🎥 Playlist: https://www.youtube.com/playlist?list=PLP29wDx6QmW47oPsNBFNEi_SYTOLDJXqQ
💻 Github Repo: https://github.com/LowLevelJavaScript/The-Bits-And-Bytes-Of-Binary
=[ 🎶 Music 🎶 ]=
Fender Bender - Bad Snacks")
![Classes, mapping, and generic parsers [Parser Combinators From Scratch] Episode 3](https://i.ytimg.com/vi/xB7lFPMN4dU/mqdefault.jpg "Classes, mapping, and generic parsers [Parser Combinators From Scratch] Episode 3
In this episode well create a Parser class and implement map, a method that will allow us to apply arbitrary structure as we parse.
Well also build more general parsers like letters and digits, as well as combinators like choice and many.
=[ ℹ About ℹ ]=
During this series we will develop an understanding of the concept of parsing, and build our own parser combinator system from scratch. The system we build will be capable of parsing both binary and text data. Well make use of both object-oriented and function programming principles to develop an effective and intuitive library.
=[ ⛓ Links ⛓ ]=
- ⭐️ Patreon: https://www.patreon.com/lowleveljavascript
- 💌 Updates to your inbox: https://tinyletter.com/lowleveljavascript
- LLJS Subreddit: https://reddit.com/r/lowleveljavascript")
