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Commodore PET User Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Preface
1 Introducing the PET
Communicating with the PET
ROM and RAM
BASIC Programming
PET Models
Three Models of the Commodore PET
Features
2 Operating the PET
Unpacking
Cassette Hookup
Keytop Film Covering
Startup
Back View of PET
Keyboard
Keyboard Entry
PET Key Groups
Special Symbols as Program Operators
Screen Display
The PET Video Screen
Cassette Tape Drive
Cassette Operation
PET Cassette Tape Drive
Cassette Tape Controls
Cleaning and Maintenance
Cleaning and Demagnetizing the Tape Head
PET Cassette Tape Head
Care of Cassette Tapes
Write Protect Notches
Elementary Troubleshooting
Extractor Tooi
RAM Numbering
3 Programming the PET
Calculator or Immediate Mode
A One-Li Ne Program
Reexecuting in Immediate Mode
Modifying a Program
Elements
Numbers
Strings
Variables
Special String Symbols
Operators
Reserved Words
Arrays
Functions
File Names
Writing BASIC Programs
Line Numbers
BASIC Statement Groups
Developing a Program
Modification Example Tasks
4 Pet Basic
Format Conventions
BASIC Commands
Clr
Cont
List
Load
New
Run
Save
Verify
BASIC Statements
Close
CMD
Data
DIM
End
For . Next [Step]
Get
Get
Gosub
Goto
Then
Input
Input
Let
Open
Logical Files
Secondary Address Codes
Poke
Print
Print
Read
Rem
Restore
Return
Stop
Wait
BASIC Arithmetic Functions
Abs
Atn
Cos
Exp
Int
Log
Rnd
Sgn
Sin
Sor
Tan
BASIC String Functions
Asc
Chr
Left
Len
MID
Right
Str
Val
BASIC Format Functions
Pos
Spc
Tab
BASIC System Functions
Fre
Peek
ST Values for Tape
Sys
Ti Ti
Usr
User-Defined Function
Def Fn
5 Making the most of PET Features
Keyboard Rollover
Buffer
Two-Key Repetition
Strings
Concatenating Strings
Numeric Strings
Programmed Cursor Movement
The PRINT Statement
The CHR$ Function
Arithmetic
Addition
Subtraction
Multiplication
(Continued) Graphies
Graphies in Calculator Mode
Draw the Square
Programming Graphies
Summary
Animation
Time Delay
Programming Character Placement
Summary
Files
Program Files
Data Files
File Handling
Writing a Data File
Using PRINT
Reading a Data File
Read a Data File
Mail Input
Mail. Print
Format Printing Using GET
Alternate Character Set
Features of the Alternate Character Set
BASIC Word Abbreviations
Setting the Clock
Digital Display Clock
POKE to the Screen
Calculating the Screen Address
Generating Random Numbers
6 System Information
Organization of the PET System
Memory Map
PET BASIC Interpreter
Principal Pointers in User Program Area
BASIC Statement Storage
User Program Area Initialization
User Program Area on Power-Up
Data Formats
Array Header
Assembly Language Programming
PET Memory Map (Rev. 3 Roms)
PET ASCII Codes
PET Error Messages
Operating System Error Messages
Program Examples Solved
BASIC Bibliography
PET Newsletters and References
Conversion Tables
Mathematical Constants
Hexadecimal-Decimal Integer Conversion
Powers of Two
Powers of Sixteen
POWERS of TEN 16
Variations for Original Roms (Revision Level 2)
PET Features
Index
Advertisement
Quick Links
1
Basic Programming
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