Mapping the Commodore 64 and 64C is a detailed and comprehensive explanation of the Commodore 64 and 64C computers’ memory. This is the definitive work—complete and clear discussions of all the impdrtant user-alterable memory locations in the computer, as well as details of the BASIC and Operating System routines in permanent memory (ROM), and of GEOS from Berkeley Softworks, Whether you're programming in BASIC or in machine language, you'll find this sourcebook invaluable.

Serving both as an introduction to 64 architecture and memory use, as well as an excellent resource to help you tap the computer's powerful, but hidden, features, Mapping the Commodore 64 and 64C includes:

• A complete memory map of GEOS
• An explanation of all Kernal and BASIC routines
• Demonstration programs for many of the operating routines
• How to turn individual bits on and off
• The details about how to create and use sprites in your programs
• How to create the precise sound effects you want
• How to create your own characters and where to safely store them
• A program that allows single keystroke entry of BASIC keywords

If you're familiar with BASIC, you'll turn to this book again and again for instruction, advice, and clarification. If you're already programming in machine language, you'll find this book an indispensable guide to memory locations and routines. But no matter what your programming level, once you've used Mapping the Commodore 64 and 64C, you'll wonder how you ever got along without it.