IBM System 360, Model 30 Operating Manual

Systems Reference Library

IBM

System/360

Operating Guide

Model

30

File

Number

Form

8360-01

A24-3373-2

This

reference

the

IBM 2030

Keyboard

additional

devices,

Bibliography,

(attached

information

refer

publication

Processing

to

the

for

to

the

publications

Form

A22-6822.

describes

Unit

and

IBM

8ystem/360

operation

operator

the

of

listed

IBM 1052

Model

the

various

in

the

procedures

Printer

30).

For

input/output

IBM

8ystem/360

for

Third

Edition

This

is a

released

Form

Number

reprint

in

the

of

A24-3373-1

following

Pages

Technical

Affected

incorporating

Newsletter.

~

changes

N24-0390

Significant contained

subsequent

Copies This Publications, Address

@)

International

ii

of

this

manual

comments

changes

in

this

revisions

and

has

Dept.

20

or

additions

publication

or

Technical

other

IBM

been

prepared

171,

regarding

Business

to

will

publications

by

P. O. Box

this

publication

Machines

December

the

specifications

be

reported

Newsletters

the

IBM

6,

Endicott,

Corporation

in

can

be

Systems

to

28,

obtained

New

this

1965

1966

through

Development

York

13760

address.

IBM

Branch

Division,

Offices.

Product

CONTENTS

IBM

SYSTEM/360

MODEL

30

OPERATING

GUIDE

..........................

5

IBM

2030

System

Control

Panel

. . . . . . . . .

..

6

Operator's

Control

Panel

(OC

P).

. . . . .

..

6

Console

Controls.

. . . . . . . . . . . . . . .

..

9

Operation

Controls

. . . . . . . . . . . . . . . .

10

Push

Buttons

.....................

12

Displays

........................

14

Use

Meters

.....................

18

SYSTEM

OPERATIONS

.................

19

System

Power-On

and

Power-Off

.......

19

Program

Load

Routine

. . . . . . . . . . . . . .

19

Dis

play

Information

From

Storage

. . . . . .

20

Store

Information

into

Storage

. . . . . . . . .

20

Single-Instruction

Processing

.........

24

Single-Cycle,

Display,

and

Store

Operations.

. . . . . . . . . . . . . . . . . . . .

24

Processing a Program

Section.

. . . . . .

25

Starting

at a Specific

Instruction

(Set

IC)

Procedure

..................

25

Manual

Intervention

. . . . . . . . . . . . . . .

27

Microprogram

Test

Routines

.............

27

Basic

Test

......................

27

Display

Read/Write

Storage

...........

27

Alter

Read/Write

Storage

. . . . . . . . . . . .

28

Alter a Block

of

Read/Write

Storage

.....

28

IBM 1052

PRINTER-KEYBOARD

..........

29

IBM 1050

OPERATIONS

....

37

EXTENDED

BINARY

-CODED-DECIMAL

INTERCHANGE

CODE

(EBCDIC)

.........

41

GLOSSARY

OF

TERMS

.................

44

INDEX

............................

46

iii

Figure

1.

IBM

System/360

Model

30

with

IBM

1052

Printer

Keyboard

4

IBM

SYSTEM/360

The

IBM

System/360

state,

high-speed

compatible described tion,

--The processing

Form

operator

with

the

in

IBM

A22-6821.

(turning starting a program) control

board tion

panel

can

be

between

(console).

added

the

operator

documented.

MODEL

Model

data

processi~g

other

models

System/360,

controls

power

are

needed

on

contained

The

to

the

system and

30

OPERATING

30

(Figure

of

Principles

for

and

off

IBM 1052

so

the

system

1)

is a solid-

system

that

System/360

of

normal

and

loading

on

the

2030

Printer-Key-

that

communica-

can

GUIDE

is

as

Opera-

program

and

system

be

5

IBM

2030

SYSTEM

The

IBM

2030 with a number that

permit

modes, tion. on a panel system neer's

console

Panel tons,

indicators. the

panel, Processing all

controls

and

These

control

panel.

is

(OC

three

operation

observation

indicators

(Figure

designated

P).

16-position

Except

the

Units)

and

problem-program

CONTROL

Central

of

indicators

2)

console

The

lower

This

section

for

OCP

is

in

indicators

processing.

PANEL

Processing

and

of

the

system

of

the

and

controls

that

serves

and

an

right-hand

as

the

Operator's

contains rotary the

nomenclature

identical

System/360.

necessary

Unit

manual

in

results

are

as

both

IBM

Customer

portion

four

switches,

on

all

CPU's

The

for

is

provided

controls

any

of

any

assembled

an

operator's

of

Control

push

and

printed

OCP

normal

several opera-

Engi-

the

but-

six

on (Central contains

I/O

devices. sequence units.

Note:

The applying output

1.

devices:

Press

light

2.

Set

3.

Press

4.

Turn

5.

Set

depends

follo\\ing

or

removing

the

to

come

the

Rate

the

power

the

Rate

The

2030

time

on

the

procedure

Stop

on.

switch

Start

on

or

switch

required

number

electrical

key

to

the

key.

off

on

the

to

the

for a power-on of

on-line

must

be

power

and

wait

for

Single-Cycle

I/o

unit.

Process

I/O

used

when

to

input/

the

l\lanual

position.

OPERATOR'S

This

section

has

the

following

Power-On

The I/O

units reset not

the

are

reset. on. storage turbed. and

restored

Key

power-on

starts

function

general-[Xlrpose

as

The

CPU

so

that

Hence,

storage.

The

I/O

If

power power-on On taken reset.

light

for

cannot

sequencing

remains

that

The

CONTROL

of

the

2030

controls

sequence

when

occurs.

are

any

clock

information

system

without

units

are

be

brought

off)

unit.

po\ver-on

PANEL

console

and

for

this

key

All

data-flow

or

floating-point

priorities

is

reset

in

power

destroying

sequenced

up

is

interrupted

until

corrective

All

on-line

sequence

(OCP)

(lower

indicators:

the

CPU

is

pressed.

that

to

prevent

storage

can

information

ON

for a unit,

I/O bypasses

right

and

all

registers

happen

access

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be

turned

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by

further

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action

units

corner)

on-line

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system

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main

one.

Power

is

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6.

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tion.

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procedure

cycle

in accessed. nel

that

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contents

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power

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the

line

continue

any

channel

on.

Power-Off

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I/O

units.

altered

if

\!.,Trite forced just

during

a

storage-read

indicator

to

read

the

console

ensures

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might

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to

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removed

maintenance

terminators

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operations.

must

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key

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any

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power

power-off

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storage

caused

does

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be

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long

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last

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last as

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CPU

storage

operation.

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the

contents

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lost.

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on

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the

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recommended

1.

Press Manual attached

enter

2.

Press

Emergency

The

Emergency electrical units)

with

of

storage

As

the

name

should

be

used

manually

The

system switches. environment

power. system

Contact

power

Key

key.

the

light

I/O

the

manual

the

Pull

power

no

regard

may

implies,

reset

If

the

is

cannot

conditions

is

operated.

are

lost

key

power-off

console

to

come

units

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do

state.

Power-Off

Switch

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Switch

(including

to

be

altered

the

only

if

necessary.

by

the

is

protected

temperature

too

high,

the

Customer

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are

reset

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takes

precedence

procedure

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and

wait

on.

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Stop

not

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the

)

key.

removes

power

to

all

sequencing.

if

this

switch

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by

these

thermal

of

the

switches

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operating

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maintained.

when any

over

for keys

system

all

primary

on-line

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is

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switch

overload

drop whenever

the

pending

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the

is:

the

on

to

I/O

contents

operated. Switch

must

system

the

Test

Indicator

The

Test Check set

to

Load

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This

indicator

and

released.

program

PSW

is

Load

Key

This

key

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1.

An

2.

The

3.

The This

4.

The all storage.

light

Control,

Process

is

successfully

set

into

is

used

functions

automatic

CPU

basic

test

clear

the

flag

is

on

ROS

(normal

turns

It

remains

circuitry).

to

initialize

occur:

System

clock

is

test

microprogram

is

looped

UCW

bytes

whenever

Control,

the

or

processing

on

when

the

on

until

completed

See

the

Reset

started.

128

times.

microprogram

in

the

UCW

Address

Rate

switch

position).

Load

the

load

(the

the

Load

system.

is

performed.

is

performed.

is

run

area

Compare,

is

key

is

pressed

micro-

initial-load

Key

The

to

reset

of

auxiliary

not

section.

f01-

System

This

indicator

the

use

section.

Manual

This

light

and

that

as

the console is

on.

\Vait

Indicator

When

this

no

instruction occurs, program.

(SYS)

meters

)

(MAN)

indicates

no

channel

System

controls

light

processing

Indicator

is

normally

is

running.

Indicator

that

operation

light

is

off).

are

effective

is

on,

the

processing

is

initiated

on

(See

the

CPU

Several

CPU occurs.

whenever

the

clock

is

in

progress

of

only

when

clock

If

as

required

either

Use

Meters

is

stopped

the

manual

this

is

running

an

interruption

by

of

(as

lamp

the

long

but

5.

The analyzes address (load-unit pleted, been turned

Note

that

key

is

pressed.

is

then

Interrupt

When

this

the

external external nizes

this

Switches

These

rotary

operator

load

microprogram switches

of

address).

the

successfully

off.

the

system

effective

Key

key

is

old

interruption

F,

G, H,

switches

for

the

G,

the

program-loading

Initial

Program

set

mask

The

system

as

soon

as

pressed,

PSW

is

altered

is

pending.

only

and

J

are

following

is

begun.

H,

and J to

\Vhen

this

Load

up,

and

the

is

reset

mask

the

IPL

the

interruption

to

indicate

The

if

programmed

normally

operations:

This

determine

I/O

routine

(IPL)

Load

when

in

the

PSW

system

used

routine

device

is

PSW

light

the

load

IPL

is

set

code that

to

by

the

com-

has is

PSW

up.

of

an

recog-

do

so.

8

1.

Manual a ROS

2.

Manual and

3.

Manual

storage

~

described Switch F is tions

(see Feature, particular tions

(see bility

Feature,

address

J).

The

functions

in

also

IBM

Form

significance

IBM

alteration

(F,

entry

of

entry

of a

or

into a data-flow

detail

in

used

System/360

A24-3255).

System/360

Form

CONSOLE CONTROLS

The

manual operator seyeral

controls

to

initiate

modes,

and

system

to

operations.

Note:

Storage main-storage initiated

to

ensure

from

that

Protection

alteration

the

console.

useful

altered.

Data

and

Address

Eight

rotary entering of

data

these

sixteen-position

hexadecimal

A,

B,

C,

and D are

manual

age, switches register Switches

operations

or

to

are

and

F, instruction address, These system

or

four

through

These

set

address,

switches

Entry

switches

or

addresses

digit

(four

used

involving

up a compare

connected

to

the

compare

G, H,

and J are

enter

manual

the A-and

are

of

an

G,

H,

the

load-unit

byte

of

these

other

sections

for

1400

Model

for

1620

Model

A24-3365).

on

the

2030

operation

perform

is

or

display

Care

data

is

Swit

are

provided

into

switches

bits

plus

to

enter

address.

to

the

(match)

a ROS

address, a load-unit

data

are

connected

B-registers.

normally

instruction

and

information

register

four

compatibility

address

J).

address

switches

of

this

1400

Compatibility

(G,

into

(H

and

are

manual.

opera-

or

H,

main

J).

Switches F and G have

compatibility

30,

console

display

not

effective

1620

in

permit

any

and

during

opera-

Compati-

the

of

store

operations

must

be

exercised

not

unintentionally

ches

for

manually

the

system.

provides

parity).

an

address

main

or

auxiliary

main-storage

Switches

These

Each

one

for

stor-

four

address

circuits.

used

to

set

up

an

into

the

system.

to

the

data-flow

used

as

follows:

Switch

A,B,C,D

F,G,H,J

G,H,J

H,J

The

specific

switches

are

detailed

publication.

Switches F and G also

the

1400

and

1620

Display-Storage

This

control

from

(or

do

not addition, into

any

The

dual-concentric

to

access

shown

Use

described

can

store

have

full-time

proviSion

main-storage

the

registers

on

the

dial

of

the

Storage-Display

in

the

into

section.

~s

MS

\ I

~

0

v"

0

/I

5

')

Figure

3.

Display-Storage

Function

A

stop

or matched the

Main

(MSDR)

ter

(WX),

A

main-storage

store

or

An

instruction-Start ROS-Start operation.

The

load-unit

and

channel

the

program

A

data

byte

or

auxiliary

data-flow

functions

in

various

compatibility

Selection

be

used

to

certain)

indicators

is

made

or

auxiliary-storage

rotary

and

(Figure

Display

"'TI

-i

~

3).

and

restart

against

Storage

or

the

display

address

is

to

be

storage,

register.

provided

sections

have

functions

features.

Dial

display

system

on

to

display

switch system

Selector

Store

Selection

address

the

contents

Data

Register

ROS

address

operations.

address

for a manual

(I/O

from

to

be

loaded),

loaded

or

by

these

unique

information

registers

the

console.

from

labeled E is

control

switch

Operations

Switch

to

for

device

which

into

eight

of

this

that

or

location.

points

be

of

regis-

manual

or

a

main

a

to

In

store

used

is

9

OPERATION

Four

rotary

any

of

several

these

controls

Customer

useful

light

the

Process

Rate

The control

to

the

is

on

Switch

three

are:

Engineer,

if

modes

Instruction

When

the

Rate

plete

instruction interruptions) is

pressed. the A-and next

instruction.

identical

is

pressed.

I/O pleted is

pressed next

to

If

an

input/output

instruction

before

instruction

CONTROLS

control

modes

are

normally

programmer

these

four

position.

of

Step

(INSN

switch

(including

is

executed

After

the

B-registers

The

the

stop

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the

registers

to

display

described

publication.

CPU

Status

I

0

I

8

1

4

3

I

3

I!

I

IL

I

to

contents

storage

conditions,

check

the

contents

in

the

Indicators

I

CV

1

I 0

4

5 2 6

COMMAND

4

5

PROG

the

control

storage

of

address

conditions.

are

displayed,

Display,

I

CC

1

2

I A

1 7

I

2

6

i I

CHECKS

PROT

CHNL DATA

information

display,

certain

the

data

register, a number

the

multiplexor

Although

provision

of

all

CPU

registers

and

Store

CS

o 1

CHNl

INT

CTRL

FACE

provided

2030

registers,

channel

only

is

section

I

2

3 I

I

console

some made as

of

this

the

of

tags,

DISPLAYS

Several information, indicator

signal its position 0, grouped values

with parity

indicators

shows

line.

associated

of a

1,

2;

3,

to

are

many

of

bit

for

are

provided

data

bytes,

the

binary

When a latch

lamp

is

lighted.

bit

in a field

etc,

are

lighted; form a numeric lighted

(8,4,2,1).

the

console

the

information.

and

system

condition

is

set,

is

important,

but

digit,

The P lamps

displays

to

display

status.

of a latch

or a signal

In

cases

where

the

binary

represent

14

control

where

the

bits

Each

or

is

on,

the

numerals

are

bit

associated

the

The

CPU

status signal any meanings

EX.

execution

the

time.

This

actual

These

are:

lampturns

(that

is,

branch-on-interrupt

instruction word, is

programmed cution pressed),

the

CPU

the

(for

clock

word

EX

latch

to

example,

the

EX

is

indicators

operating

indicators

on

at

whenever

occurs).

immediately

is

reset.

stop

at

if

the

lamp

remains

restarted.

(Figure status

and

the

end

stop

4,

of

the

their

end

of

each

micro-

In

the

following

Note

that

of

instruction

button

on.

It

Part 2 of

CPU

2)

at

corresponding

instruction

micro-

the

interrupt

if

the

system

exe-

has

been

turns

off

when

I

P P

P

P P

CD CC

OP IN

I

~

MAIN

I 8

I

~

I

flAGS

Sli

SKIP

MPX

ADR

STAT

IN IN

2

4

1 2

STORAGE

4 2

B-REGISTER I

4 2

2

1

CHANNEl

SERV IN

8 4 2 1

~

I

4

5

DATA

REGISTER

8

I 8

4 2

5

d

1

3 4

SEl OUT

P P

PCI

DATA

4 2

8

I

1

0

I

OP

IN

SEL

I

OUT

TAGS

ADR

OUT

7

6

I

I AlU

1

I

1

7

6

I

CHANNEL

REGISTER

, 8

1

3 4

2

ADR

IN ADR

OUT

SERV

CMND

OUT

MAIN STORAGE ADDRESS

P P

P P 0

I

~

I 8

8

I

4

1

4 2

4

1

NUMBER

4 2

5 6

TAGS

STAT IN IN

CMND OUT

SUP OUT

2

; I

2

OUTPUT

1

A-REGISTER

2

1

3 4

2

I

18

I

~

I

SERV

SERV OUT

8

4

TWO

P I 8

P 0 1

REGISTER

4 2

6 7

5

4

2 1

4

2

5

6

KEY

4

I

SUP OUT

I

MPX

(~HANNEL

P 8 P 0 1

1

I

1

7

I COMMAND I

1

2 2

4 2

MAIN STOR

AUX STOR

3 4

EX

1050 INTV

MPX CHNL

I

IL

2

CPU

8 4 2 1

PROG

BUS

1

3

STATUS

MATCH

SEL CHNL

CHECKS

PROT

RECiISTER

1050 REQ

COMP MODE

7

CHNL CHNL

DATA

6 7

STOR ADR

B A

REG

ROS ROS ADR SALS

5 6

- OUT

8 4 2 1

4 5

~~~~

I

INT FACE

CTRL

CPU CHECKS

STOR DATA

REG

ALU

CTRL REG

Figure

Match. of

an

exclusive

4.

Some

indicator in

switches

of

either

the

or

the

Read-Only

The

position mines well

Allow is read

which

as

the

Write.

on,

main

operation,

operation.

play

and

store

storage

are

1050 INTV. addressed

intervention

light

is

turned

at

the

time

1050 INTV

Console

modes

OR

turns

on

A,

B,

Main

of

the

of

these

system

Whenever

or

auxiliary

but

When

operations

not

possible.

This

IBM 1050

(out

of

on

the

intervention

light

is

Display

of

match

whenever

C, Storage Storage

Indicators

operation

circuit.

the

and D matches

Address Address

address-compare

registers

res

panse

to a match.

the

allow-write

storage

not

the

corresponding

this

indicator

of

main

indicator

system

cards,

only

if

the

is

device

out

device

became

turned

off

when

require

compare

is

monitored,

has

is

on,

or

turned

of

forms,

the

(Part

the

The

match

address

the

contents Register Register

switch

indicator

completed

write

manual

auxiliary

on

when

requires

etc).

was

in

run

necessary.

unit

has

2 of 2)

use

(MSAR) (ROAR).

deter-

as

a

dis-

an

manual

The

mode

The

been

made

ready

by

the

2030

1050

REQ.

operator

is

reset

presses

when

attachment

MPX

CHNL. request on. share

SEL

selector (such

CaMP in is

is

This

light

cycle.

CHNL.

channel

as

for a selector-channel

MODE. compatibility turned

on

W-register

position--see

~

when

that

unit

System

This

and

Reset

light

the

attention

accepted

or

turns

request

status

into

on

Whenever a multiplexor

recognized

turns

This

at

the

by

off

lamp

is

using

Whenever

mode,

this

same

the

at

is

lighted

the

time

CPU,

the

light

read-only-storage

Part

1 of

Figure

is

re-addressed,

Load

keys.

whenever

key

on

the

is

recognized

the

unit

this

completion

whenever

read-only

chaining

system

is

on.

as

the

W3

display

4).

the

1052.

status

channel

light

of

storage

operation).

is

operating This lamp

bit-3

or

It

by

the

register.

share turns the

either

lamp

(the

position

15

IBM System 360, Model 30 Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual