IBM 4331 Manual instruction

Systems
GA33-1525-1
File No.4300-01
Operator's Library:
IBM
4331 Processor
Operating Procedures
and Problem
Determination Guide
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Second
Edition,
June
1979
Information
contained
in
this
manual
is
subject
to
change
from
time
to
time.
Any
such
change
will
be
reported
in
subsequent
revisions
or
through
the
System
Library
Subscription
Service.
This
edition
contains
minor
changes
throughout
the
whole
manual.
Important
changes
have
only
been made in
sections
'Program
Load' and 'Communication
Lines
SDLC
1•
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©
Copyright
International
Business
Machines
Corporation
1979
i i
4331
Processor
Operators
Guide

Preface
This manual describes how to operate the IBM 4331
Processor. You are assumed to have a knowledge of
Introduction to IBM Data Processing Systems, GC20-1684, and
some
experience in operating a similar computing system.
The information in this manual is organized in the
fo l l ow ing way :
•
Chapter contains emergency and first aid procedures.
• Chapter 2 describes the parts of the IBM 4331 Processor
that you need to know about in order to be able to
communicate with, and control the system. It describes
the operator console and related facilities.
• Chapter 3 explains how to operate the IBM 4331
Processor.
• Chapter 4 provides restart procedures for the IBM
5424 Multi-Function Card Unit.
• Chapter 6 of the manual contains a glossary.
iii

CONTENTS
Chapter 1. Emergency Procedures ..... .
Chapter 2. Communicating with the System ..
Operator's Console ..
Video Screen ... .
Control Panel ... .
Console Keyboard ..
Tabulator keys, Backspace key, Space bar ..
Machine Status Display .
System Diskette ....
Chapter 3. Procedures.
Loading the Diskette .
Switching Power On .....
Loading the Microcode (IML) ..
Initial Program Load .... .
Mode Selection ....... .
Errors Made During Mode Selection.
Fast Mode Selection. . . ...
Address Compare .. .
Check
Control ... .
Display/Alter.... . ....... .
Control Registers. . . . . . . ...
Current PSW. . . . . . . . .
Floating Point Registers ........... .
General Registers. . . ... .
Storage Key .... .
Main
Storage ... .
Main
Storage Size ..
Capacity Counts ...
Main Storage Real.
Main Storage Virtual
Page Description ....
Communication Lines.
Instruction Step ..
Interval Ti mer
Machine Save .
Program Load . .
Clear Reset ...... .
Reset I-Step
Program Reset.
Restart ...... .
Store Status .
TOD Enable ..
IV 4331 Processor Operators Guide
• 1 -1
. 2-1
. 2-2
. 2-3
. 2-4
. 2-6
. 2-9
. 2-14
2-20
. 3-1
. 3-2
. 3-3
. 3-4
. 3-5
. 3-6
3-8
. 3-9
. 3-11
. 3-14
. 3-16
. 3-18
. 3-19
. 3-21
. 3-22
. 3-23
. 3-24
. 3-26
. 3-27
. 3-28
. 3-30
. 3-32
. 3-34
. 3-46
3-47
. 3-48
. 3-49
. 3-53
. 3-54
. 3-55
. 3-56
3-57
3-58

Native Displays and Printers .
User
Diskette Control .. .
Diskette Device Address .. .
. .... 3-59
3-63
. . . . 3-65
Chapter 4. Operators Problem Determination
Chapter 5. Reference Information ..... .
Restart Procedures for the IBM 5424 Multi-Function
Card Unit (MFCU) ....... .
Restart Information Field ...
Operators Restart Instructions ..... .
Conversion Binary to Hexadecimal to Decimal
(Integers Only) . . . ...
Chapter 6. Glossary ..
. 4-1
5-1
. 5-1
. 5-1
5-3
5-9
. 6-1
v

•

•
Chapter 1. Emergency Procedures
General
If people are endangered, or if equipment could be damaged,
disconnect power to the system by pressing the relevant
EMERGENCY POWER-OFF switch in the computer room .
Electric Shock
1. If the casualty is still in contact with the electrical
supply:
a. Disconnect the electrical supply, or
b. Remove the casualty from contact with the
electrical supply by pulling on his i!:_y clothing.
Do not move the casualty unless it is necessary.
2. If the casualty has stopped breathing, apply
mouth-to-mouth resuscitation immediately (see
artificial respiration below).
3. Call for help.
Artificial Respiration
1. Clear throat of water, food or foreign matter.
2. Tilt head back to open air passage.
3. Lift jaw up to keep tongue out of air passage.
4. Pinch nostrils to prevent air leakage when you blow.
5. Take a deep breath. Seal your mouth around casualty's
mouth, blow until you see chest rise.
6. Remove your lips and allow lungs to empty.
7. Listen for snoring and gurglings, signs of throat
obstruction.
8. Repeat mouth to mouth breathing 10 to 20 times a m:nute.
Continue rescue breathing until casualty breathes
unaided.
Emergency Procedures 1- 1

Fi re
Do not use water to fight~ fire in electrical equipment.
Use only a fire extinguisher approved for this purpose, for
example one that contains carbon dioxide (C02). Follow the
instructions on the extinguisher and call for help.
1 -2 4331 Processor Operators Guide

Chapter 2. Communicating with the System
This section describes the parts of the IBM 4331 Processor
that you, as an operator, will use in your work.
Communicating with the System 2- 1