apollo-11

The original Apollo 11 Guidance Computer source code for the command and lunar modules, published for reading and historical study.

Share on XCustom license (see repository)

Overview

This repository holds the original source code of the Apollo 11 Guidance Computer (AGC), the flight computer used in the command module and the lunar module. The code is written in AGC assembly and is published so people can read it and study how the software of that mission was built. It is a historical archive rather than an application to install, and the README links translations in many languages.

Key features

  • Source code for both the command module and the lunar module
  • Written in Apollo Guidance Computer assembly language
  • README available in many languages

Best for

Readers interested in space history, early embedded software or assembly language who want to look at real mission code. It is meant for reading, not for running as a product.

Upstream
chrislgarry/Apollo-11
Fork on GitHub
Guo-astro/apollo-11
Upstream stars
72k
Category
Hardware, OS and embedded
License
Custom license (see repository)
Forked
2026-08-31
Sync status
In syncLast synced 2026-09-29