About

CODE & BOOKS

We write assembly language manuals for computers from the years when every byte was counted, and we give away every line of their code.

How the books are made

Each book starts from nothing — binary, hexadecimal, installing the tools — and ends with complete games written from scratch. Nothing in them is drawn or remembered: every screenshot is a photograph of a program running in an emulator, every number was measured by a program written to measure it, and the classic mistakes are assembled and shown rather than described.

The code is the other half of the book. It is published on GitHub, almost all of it under the MIT licence, organised by chapter with the same folder names the book prints, with a script that assembles everything again and checks it byte for byte.

The authors

Rohan A. Banerjee and Henry Mercer and Eric A. Norton and Aravind J. Deshmukh and Jorah Sallow.

Contact

Write to info@codeandbooksweb.com. For a mistake in a book, the quickest way is an issue on the book's GitHub repository, with the page number.

Trademarks

Atari and Atari 2600, Sinclair and ZX Spectrum, Commodore, Commodore 64 and Amiga are trademarks of their respective owners. Their use on this site is descriptive. CODE & BOOKS and its books are independent and are not authorised by, affiliated with or endorsed by them. All the games on this site are original.