Radio Shack CTR-118 manuals

Radio shack CTR-118 User Manual (196 pages)

Brand: Radio-shack | Category: Cassette players | Size: 1.03 MB |

English

Table of contents

LIMITED WARRANTY

2

One Tandy Center

3

Fort Worth, Texas 76102

3

CONTENTS

5

This Reference Manual and You

7

Setting up the System

9

Notes on Using the Recorder

10

Special Notes:

11

1 / General Information

13

Operating Modes

14

Special Function Keys

15

Variable Names

16

Variable Types

16

Arithmetic Operators

17

Relational Operators

18

String Operators

19

Order of Operations

19

Intrinsic Functions

20

Graphics

20

Error Messages

20

Abbreviations

20

Keyboard Rollover

21

Glossary for LEVEL II BASIC

22

2 / Commands

23

CLOAD? "

25

CSAVE"1"

26

CSAVE"A"

26

DELETE 5

26

DELETE 11-18

26

3 / Input-Output

31

@ position, item list

33

PRINT TAB

33

(expression)

33

PRINT USING

34

PRINT #-1

42

INPUT #-1

42

Sample Program

43

10 INPUT#-1,A1,B$,L$

43

20 PRINT A1,B$,L$

43

40 GOTO 10

43

4 / Program Statements

45

10 DEFINT A,I,N

46

10 DEFINT I-N

46

100 DEFSNG I,W-Z

47

10 DEFDBL S-Z, A-E

47

10 DEFSTR L-Z

48

10 CLEAR 1000

48

ON ERROR GOTO

57

Data Conversion

62

Typing of Constants

62

Type Conversion

63

5 / Strings

67

String Input/Output

68

String Comparisons

69

String Operations

70

String Space

70

(string)

71

(string, n)

74

STRING$

76

Coding/Decoding Program

78

Instring Subroutine

78

6 / Arrays

81

Other Types of Arrays

84

7 / Arithmetic Functions

89

100 K%=CINT(X#)+CINT(Y#)

90

100 Y=COS(X+3.3)

90

100 PRINT CSNG(A#+B#)

90

100 PRINT EXP(-X)

91

100 Y=ABS(A-FIX(A))

91

100 Z=INT(A*100+.5)/100

91

100 PRINT LOG(3.3*X)

91

8 / Special Features

95

ERR /2+1

98

(address)

100

CALL 0A7FH

103

JP 0A9AH

103

(variable name)

107

Logical Operators

109

20 GOTO 10

111

9 / Editing

113

ENTER key

114

Space-bar

114

100 FOR I=1 TO 10_

115

100 FOR I=_

115

L (List Line)

116

X (Extend Line)

116

I (Insert)

117

A (Cancel and Restart)

117

E (Save Changes and Exit)

117

Q (Cancel and Exit)

118

H (Hack and Insert)

118

D (Delete)

118

100 FOR I=1 TO 1_

119

10 / Expansion Interface

121

Line Printer

122

LPRINT CHR$(10)

124

LINE ONE

124

LINE TWO

124

LINE THREE

124

POKE 16424,40

125

POKE 16425,0

125

Mini-Disks - (DISK BASIC)

126

Additions to LEVEL II

126

Expansion of RAM Memory

127

11 / Saving Time and Space

129

Speeding Up Execution

130

Appendix

131

A / Level II Summary

133

Commands

135

Input/Output Statements

138

Program Statements

140

String Functions

144

Arithmetic Functions*

145

Special Functions

146

LEVEL II Reserved Words*

148

B / Error Codes

151

Explanation of Error Messages

152

Hard-To-Find Errors

153

C / TRS-80 Character Codes

155

Decimal/Hexadecimal Codes

156

Control Codes: 0-31

157

Graphics Codes: 128-191

158

Graphic Characters

161

D / Memory Map

163

Important Addresses

164

F / Derived Functions

167

G / Base Conversions

169

H / User Programs

173

Sort Routine

175

Space-Ship Lander

176

Customer Information

178

Target Practice

180

Using Your Cassette Deck

185

LEVEL II

187

Hints and Tips

187

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