Serious_Programming_for_the_Commodore_64.pdf

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1821
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IOUS PROGRAMMI G
FOR THE
COMMODORE
64
HENRY SIMPSON
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SERIOUS PROGRAMMING
FOR THE
COMMODORE
64
HENRY SIMPSON
.,
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Vic Tree is a trademark of Skyles Electronic Works.
RTC BASIC Aid and SUPERBASIC are trademarks of Richvale Telecommunications.
GrafDOS is a trademark of Interesting Software.
ApplesoftGl> is a trademark of Apple Computer, Inc.
Public Domain, Inc. is a trademark.
Commodore is a registered trademark of Commodore Business Machines, Inc.
FIRST EDITION
FIRST PRINTING
Copyright
©
1984 by Henry Simpson
Printed in the United States of America
Reproduction or publication of the content in any manner, without express
permission of the publisher, is prohibited. No liability is assumed with respect to
the use of the information herein.
Library of Congress Cataloging in Publication Data
Simpson, Henry.
Serious programming for the Commodore 64.
Includes index.
1. Commodore 64 (Computer)-Programming. 2. Basic
(Computer program language) I. Title.
QA76.8.C64S54 1984
001.64'2
84-16450
ISBN 0-8306-0821-4
ISBN 0-8306-1821-X (pbk.)
Contents
Preface
Acknowledgments
Introduction
1 User-Oriented Program Design
Making Your Program Friendly to Users-Making Your Program Friendly to Programmers-Getting
Control of Your Computer-Program Development Strategy
v
vii
viii
1
19
31
48
82
2 Getting Started
Hardware-Software-Books and Magazines
3 Programming Tips and System Documentation
Programming Tips-System Documentation
4 Output
and Screen
Design
Design Principles-Using Color-Cursor Control-Clearing a Line or Range of Lines-Screen Ac-
cess-How to Lay Out a Screen-How to Display Text-How to Display Numbers
5 Data Entry, Error-Testing, and Validation
Data-Entry Statements-The Input Process

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