From Fabian Sanglard, a series of three technical articles on the Apple II source code of Prince of Persia, as released by Jordan Mechner the previous year.
Prince Of Persia Code Review Part 1
Prince Of Persia Code Review Part 2 (Bootloader)
Prince Of Persia Code Review Part 3 (POP Bootloader explained)
More links within, and a video or two.
Jordan also released a technical brief, used at the time to help with official ports to other platforms: 28 page pdf
Peter Ferrie described some Easter Eggs here (and there’s a video of them here.)
