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ICL Manuals
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22
Instruction manual
ICL 22 Instruction Manual
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Contents
Table of Contents
Bookmarks
Table of Contents
Preface
Table of Contents
Introduction
Components
Memory
The Arithmetic and Control Unit (ACU)
The File Access Channel (FAC)
The Input/Output Controllers (Iocs)
How the ACU Operates
The Base Adder
Service Request
Interrupt
Power Failure
Program Check
Address Check
Load Request
Store Organisation and Use Chapter
Common
Partition Memory
Indexing
Manipulating Indexes
Indirect Addressing
Extended Indexing
Information Storage
Character Set
Collating Sequence
Alternative Characters in the Set
Representation of Negative Numbers
Format of the Instruction
Operation Code Field
Address Mode
Indexing Field
Indirect Addressing Indicator
Page Indicator
Address Length Specifier
The Address Field
Instruction Descriptions
Add
Add Address
Branch
Compare
Divide
Edit
Exchange
Form Numeric
Move Address
Move Character
Move Numeric
Multiply
Read
Write
The Input/Output Controllers Chapter
The Multiterminal Input/Output Channel II (MTIOC II)
Polling
Service Request
Load Request
I Nputloutput
The Digital Clock
The Multi-Device IOC
Branch-On-Service-Request
Read
Write
Write Control
The Synchronous Communications Adaptor
Introduction
Control Characters
Terminator Control Characters
Write
Read
Write Control
Transmitting Messages
Responses to Polling and Selecting
Answering Calls in Dial Line Configurations
Condition Codes after SCA Operations
Condition Code 2
The Asynchronous Communications Adaptor
Physical Description
Operational Characteristics
Dial Operations
Manual Dialling
Automatic Dialling
Automatic Dial Options
Operations in ISF Mode
Timeout Periods
Manual Dialling in ISF Mode
Automatic Dialling in ISF Mode
Transmission Status Character
Reverse (Back) Channel Communication
Receiving Data from ISF
Automatic Error Correction
Communicating with the ACA
Initialisation
ACA Instructions
The Asynchronous Terminal Adaptor
General Description
Physical Description
Functional Description
Selection Switches
Control Character Input
Operation
Break
Service Request
Load Request
Repeat Function
Programming Information
Introduction
Status Indications
Communication Format
Read Control
Read
Write
ATA Application Design Considerations
Load
Timeout
Write Delay Timer
Device Start/Stop Codes
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ICL System Ten
Model 22 Processor
Reference
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