The official Commodore 128 Programmer's Reference Guide, published by Bantam Books for Commodore Business Machines, Inc. First printing, February 1986. Plastic comb binding.

This is the definitive technical reference for the Commodore 128 -- the only official Programmer's Reference Guide produced for the platform. 12 chapters covering BASIC 7.0, graphics programming, machine language, the 80-column (8563) chip, sound and music, and a full I/O guide. Written by the engineers who designed the C128, including Fred Bowen (system architecture), Bill Herd (hardware design), and Dave Haynie (hardware design).

Condition:

- Binding: Plastic comb binding fully intact -- no broken or missing teeth, book opens and lies flat as intended

- Cover: Light yellowing consistent with age, minor wear. Front and back artwork and text fully intact and legible

- Interior pages: Clean -- All pages intact and legible

- Title page: Has a small bookplate sticker ("Return This Book To") from original owner

- Page edges: Light yellowing typical of 40-year-old paper stock

A solid, clean copy with intact binding. Many surviving copies of this book have damaged or separated bindings from heavy use -- this one is in good shape.