How computers really work, told on one small machine from 1982, the ZX Spectrum, through the simple explanations every learner is given, and the moments each one stops being true.
Learn Z80 assembly and ZX Spectrum game development by taking six complete, original 128K games apart line by line: the machine, the language, the engine every game shares, one signature technique per game, and how to test, playtest and ship a machine-code game. For programmers who know a modern language and have never written assembly.