Our friends at AtariArchives.org have made the complete text of this book by Richard Mansfield available online with the author’s permission.Published in 1984 by Compute! Books, this volume is the sequel to Machine Language For Beginners, which is already available on the site. This book takes the reader step-by-step through the process of developing a sophisticated assembler written in machine language, and includes samples and program code for Apple II, Atari, PET/CBM, VIC-20, and Commodore 64 computers.