https://github.com/miguell-j/bxl
A simple yet robust first-version bootloader written in x86 Assembly, designed as the foundational step toward a powerful custom bootloader ecosystem.
https://github.com/miguell-j/bxl
assembly assembly-x86 bootloader low-level-programming
Last synced: about 1 year ago
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A simple yet robust first-version bootloader written in x86 Assembly, designed as the foundational step toward a powerful custom bootloader ecosystem.
- Host: GitHub
- URL: https://github.com/miguell-j/bxl
- Owner: Miguell-J
- License: mit
- Created: 2025-06-24T00:28:43.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2025-06-24T00:37:20.000Z (about 1 year ago)
- Last Synced: 2025-06-24T01:32:13.915Z (about 1 year ago)
- Topics: assembly, assembly-x86, bootloader, low-level-programming
- Language: Assembly
- Homepage:
- Size: 45.9 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# BxL Bootloader
A simple yet robust first-version bootloader written in x86 Assembly, designed as the foundational step toward a powerful custom bootloader ecosystem.
## Overview
BxL Bootloader is a minimalistic 16-bit real mode bootloader that:
* Initializes essential CPU registers and memory segments
* Displays an interactive menu via BIOS interrupts
* Accepts keyboard input to navigate options
* Demonstrates structured assembly programming with modular functions
This project marks the beginning of a deeper journey into low-level programming, hardware interfacing, and OS development.
## Features (v1)
* Clean text-based menu interface with options:
* Show logo
* Quit
* Screen clearing and cursor management using BIOS services
* Keyboard input handling through BIOS interrupt
* Infinite loop hang state for controlled termination
## Future Plans
BxL aims to evolve into a feature-rich bootloader, with goals including:
* Multistage booting with secondary loaders
* Advanced input/output routines with color and cursor control
* Integration with custom kernel loaders
* Support for multiple filesystems and disk operations
* Enhanced error handling and user feedback
* Possibly develop a tiny OS kernel bootstrapped by BxL
## Building and Running
Requirements:
* NASM assembler
* QEMU emulator (or real hardware with appropriate flashing tools)
```bash
nasm -f bin bxl.asm -o boot.img
qemu-system-x86_64 -drive format=raw,file=boot.img
```
## Contributing
Contributions, feedback, and feature requests are welcome!
Feel free to open issues or pull requests.
## License
This project is released under the MIT License. See LICENSE for details.