Computer Hardware

70/46

RCA 70/46 User Manual

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Store Multiple

(STM)

General Description

Format

(RS)

Condition Code

Interrupt Action

Notes

Fixed-Point

Instructions

• The operands

in

the

set

of

general registers, beginning

with

the

register

specified

by

the

first address

(R

1

)

and

ending

with

the

register

specified

by

the

third

address

(R3)'

are

stored in

main

memory locations

starting

with

the

location specified

by

the

second address (B

2

/D

2

).

The

second

address

(BdD

2

)

refers

to

the

main

memory location

where

the

first

operand

(word)

is

to

be stored.

Storing

of

the

operands continues

in

the

ascending

order

of

the

register

number

specified

by

R

1

,

up

to

and

including R

3

,

storing

as

many

words

as

indicated in

the

main

memory locations

that

immediately

follow

the

initial operand.

o 7 8 11 12 15 16 19

20

31

• Unchanged.

• Address

error:

Addressing.

Specification.

Protection.

• 1.

If

the

same

register

is specified

for

R1

and

R

3

,

only one

word

is stored.

2.

If

R3

is less

than

R17

the

register

addresses

wrap

around

from

15

to

O.

For

instance, all

registers

can be stored

by

making

R3

one less

than

R1-

3. The operands in the

set

of

registers

designated

are

unaltered.

149

Table of Contents

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Training Manual63 pages

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RCA 70/46 Specifications

General

Brand	RCA
Model	70/46
Category	Computer Hardware
Language	English

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