Uploaded October 2019 | Updated September 2026, 2 weeks ago
In this episode we understand what a stack is, how it can be implemented on the lowest level, and how it can then be harnessed to allow the Virtual Machine to run subroutines without losing state.
=[ ℹ About ℹ ]=
This series is all about building a powerful virtual machine in JavaScript with the following features:
- A flexible, extensible, register-based virtual machine
- Support for signed, unsigned and floating point operations
- A call stack
- Interrupt capabilities
- Ability to do memory mapping for IO
- An assembly language with macro and module support
- A higher level, C like language. We'll use and expand the library from the parser combinators from scratch series
- And finally, to be able to take the whole thing into the browser and exend it to create a sort of fantasy console - an emulator for a machine that never existed
=[ 🔗 Links 🔗 ]=
- ⭐️ Patreon: patreon.com/lowleveljavascript
- 💌 Updates to your inbox: tinyletter.com/lowleveljavascript
- Series Playlist: youtube.com/playlist?list=PLP29wDx6QmW5DdwpdwHCRJsEubS5NrQ9b&playnext=1&index=1
- Github Repo: github.com/LowLevelJavaScript/16-Bit-Virtual-Machine
- Stack Data Structure: en.wikipedia.org/wiki/Stack_(abstract_data_type)
- Subroutine: en.wikipedia.org/wiki/Subroutine
In this episode we understand what a stack is, how it can be implemented on the lowest level, and how it can then be harnessed to allow the Virtual Machine to run subroutines without losing state.
=[ ℹ About ℹ ]=
This series is all about building a powerful virtual machine in JavaScript with the following features:
- A flexible, extensible, register-based virtual machine
- Support for signed, unsigned and floating point operations
- A call stack
- Interrupt capabilities
- Ability to do memory mapping for IO
- An assembly language with macro and module support
- A higher level, C like language. We'll use and expand the library from the parser combinators from scratch series
- And finally, to be able to take the whole thing into the browser and exend it to create a sort of fantasy console - an emulator for a machine that never existed
=[ 🔗 Links 🔗 ]=
- ⭐️ Patreon: patreon.com/lowleveljavascript
- 💌 Updates to your inbox: tinyletter.com/lowleveljavascript
- Series Playlist: youtube.com/playlist?list=PLP29wDx6QmW5DdwpdwHCRJsEubS5NrQ9b&playnext=1&index=1
- Github Repo: github.com/LowLevelJavaScript/16-Bit-Virtual-Machine
- Stack Data Structure: en.wikipedia.org/wiki/Stack_(abstract_data_type)
- Subroutine: en.wikipedia.org/wiki/Subroutine
![Contextual Parsing With The Chain Method [Parser Combinators From Scratch] Episode 4](https://i.ytimg.com/vi/nqNzWgSRCeg/mqdefault.jpg "Contextual Parsing With The Chain Method [Parser Combinators From Scratch] Episode 4
In this episode we will write the method `Parser.chain(fn)` which utilises functional programming concepts to empower our system with contextual abilities!
What that really means is that we can look at what weve previously parsed, and choose the next parser accordingly.
=[ 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
- Playlist: https://www.youtube.com/watch?v=6oQLRhw5Ah0&list=PLP29wDx6QmW5yfO1LAgO8kU3aQEj8SIrU
- Code: https://github.com/LowLevelJavaScript/Parser-Combinators-From-Scratch
- Tom Hardings amazing resources about Fantasy Land: http://www.tomharding.me/fantasy-land/
- Fantasy Land Specification: https://github.com/fantasyland/fantasy-land
- LLJS Subreddit: https://reddit.com/r/lowleveljavascript")
![Bits! [The Bits And Bytes Of Binary ep.1]](https://i.ytimg.com/vi/pOM86M1pGb4/mqdefault.jpg "Bits! [The Bits And Bytes Of Binary ep.1]
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
🎥 Playlist: https://www.youtube.com/playlist?list=PLP29wDx6QmW47oPsNBFNEi_SYTOLDJXqQ
💻 Github Repo: https://github.com/LowLevelJavaScript/The-Bits-And-Bytes-Of-Binary
=[ 🎶 Music 🎶 ]=
Game Plan - Bad Snacks")
