Table Of Contents - IBM 1620 1 Manual

IBM 1620 Data Processing System
1620 Data Processing Unit, Modell
Data Representation . . . . . . . . . . . . . . . . . .
Magnetic Core Storage
Character Representation . . . . . . . . . . . . . . . .
1620 Instructions . . . . . .
Stored Program Concept
Instruction Characteristics
Indirect Addressing
Instruction Types
Arithmetic Instructions
Automatic Division
Automatic Floating Point Operations
Compare Instructions . . . . . . . .
Branch Instructions . . . . . . . . .
Internal Data Transmission Instructions
Additional Instructions . . . . . . . . .
Input/Output Instructions . . . . . . . . . .
1311 Disk Storage Drive Instructions
Program Control Instructions . . . . . . . . .
Console Typewriter
1620 Console . . . .
Control, Switches, Keys and Signal Lights
Program Switches and Indicators . . .
1620 Console Operating Procedure
Page
1
3
3
4
6
7
7
7
9
12
12
17
23
29
30
34
36
39
43
51
52
55
55
57
64
iii
Program Testing '"
Instruction (I) Cycle
Execution (E) Cycle
Arithmetic Operations
Internal Data Transmission
Input/Output Data Flow
1620 Data Flow . . . . . .
Appendix A - Instruction Summary
Appendix B - Arithmetic Tables ...
Appendix C - Data, Format, Location,
Codes and Registers
Appendix D - Significance of P and Q
Addresses . . . . . . . . .
Appendix E - IBM Card
Appendix F - 1621 Paper Tape
Types of Tape Splices . . . . . .
Appendix G - Program Load Routine
Paper Tape Load Routine
Card Load Routine
Index
Contents
Page
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92