A collection of historical source files, for education and perusal. - historicalsource
github.com
Memory maps in .map / mac files
.dir /doc files explain the roms and purpose
the rest is the actual code
I am blown away.
list of games with original source code now available:
Star Wars
Arabian
Black Widow
Food Fight
Xevious (licensed, roms only)
Quantum (roms only?)
Pole Position (Licensed, roms only)
Millipede
Fast Freddie (licensed, roms only)
Liberator
Maze Invaders
Gravitar
Kangaroo (licensed, roms only)
Space Duel
Digdug (licensed, roms only)
Battlezone
Tempest
Warlords
Centipede
Asteroids Deluxe
Red Baron
Baseball
UFO
Soccer
Monte Carlo
Missile Command
4plr Football
Skydiver
Subs
Lunar Lander
Basketball
Asteroids
Indy 4
Football
Video Pinball
Orbit
Wolf pack
Mini-golf
Tournament Table
Firetruck
Destroyer
Sky Raider
Super Breakout
Avalanche
Sprint 4
Ultra Tank
Sprint 1
Canyon Bomber
Superbug
Poolshark
Triple Hunt
Starship 1
Night Driver
Dominos
Dominos Cocktail
Drag Race
Sprint 2
Cops and Robbers
Quiz Show
Flyball
Tank 8