Commodore 64 Programmer's Reference Guide

Commodore 64 Programmer’s Reference Guide is the definitive technical manual for anyone who wants to program the legendary Commodore 64 at a deeper level. Originally released by Commodore itself, this book goes far beyond BASIC tutorials and provides a complete reference to the C64’s hardware and system architecture. Inside, you’ll find detailed explanations of the 6510 CPU, memory map, zero page usage, interrupts, and I/O addressing, along with in-depth coverage of the VIC-II graphics chip, SID sound chip, and CIA interface adapters. The guide includes extensive tables, registers, memory locations, and examples that are essential for writing efficient machine-language and low-level routines. Whether you are a retro enthusiast, demoscener, game developer, emulator author, or electronics hobbyist, this book serves as an indispensable companion. It is not a “learn to program” book, but a serious reference manual—perfect to keep within arm’s reach while coding, debugging, or exploring how the Commodore 64 truly works under the hood. A timeless resource that remains just as relevant today for retro computing projects as it was in the golden age of 8-bit computing, Remastered by Pickled Light.