Commodore 64 Programmer's Reference Manual page 4

TABLE OF CONTENTS
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ix
.
What's Included?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
x
.
How to Use This
Reference
Guide. . . . . . . . . . . . . . . . . . . . "
xi
.
Commodore
64
ApplicationsGuide. . . . . . . . . . . . . . . . . . . ..
xii
.
Commodore Information Network. . . . . . . . . . . . . . . . . . . . . ..
xvii
1. BASIC PROGRAMMING RULES 1
.
Introduction 2
. Screen
Display
Codes (BASIC Character Set)
.............
2
The Operating System(OS) 2
.
Programming Numbers and Variables
4
Integer, Floating-Point and String Constants.. . . . . . . . . . 4
Integer, Floating-Point and String Variables. . . . . . . . . . . 7
Integer, Floating-Point and String Arrays 8
. Expressions a nd Operators. . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
Arithmetic Expressions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
Arithmetic Operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
Relational Operators 12
Logical Operators
.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
~ 3
Hierarchy of Operations. . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
Stri ng Operations
16
String Expressions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
17
.
Programming Techniques
18
Data Conversions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
Using the INPUT Statement
18
Using the GET Statement. . . . . . . . . . . . . . . . . . . . . . . . . ..
22
How to Crunch BASIC Programs 24
2. BASIC
LANGUAGE
VOCABULARY... . . . . . . . . . . . . . ..
29
.
Introduction 30
. BASIC Keywords, Abbreviations, and Function
Types
31
.
Description of BASIC Keywords (Alphabetical) 35
. The Commodore 64 Keyboard and Features 93
. Screen Editor.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 94
iii