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Starred repositories

8 stars written in Assembly
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Original Apollo 11 Guidance Computer (AGC) source code for the command and lunar modules.

Assembly 64,574 7,375 Updated Jan 22, 2026

The original sources of MS-DOS 1.25, 2.0, and 4.0 for reference purposes

Assembly 31,730 4,546 Updated Apr 25, 2024

bootOS is a monolithic operating system in 512 bytes of x86 machine code.

Assembly 2,025 108 Updated Jan 11, 2026

Tetris that fits into the boot sector.

Assembly 786 39 Updated Dec 18, 2016

Multilingual BLS12-381 signature library

Assembly 551 219 Updated Nov 26, 2025

🏓 Pong in 512 bytes. (boot sector)

Assembly 94 5 Updated Sep 25, 2023

Examples from my book Programming Boot Sector Games

Assembly 61 9 Updated Jul 31, 2024

A project cataloguing, preserving, and dissecting compilers for the Ruby programming language

Assembly 17 6 Updated Sep 27, 2022