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MAINDEC-8E-D1GB-D

December 1974

6 pages

Original

0.1MB

Document:	PDP-8E Memory Power On/Off Test
Order Number:	MAINDEC-8E-D1GB-D
Revision:
Pages:	6
Original Filename:	https://svn.so-much-stuff.com/svn/trunk/pdp8/src/dec/maindec-8e-d1g/maindec-8e-d1gb-d.pdf

OCR Text

IDENTIFICATION
-uw--9q~!-.--s-

PRODUCT cont:

HAINDEC-eE-DIGB-D

PchucT NINE}

PDfi-OE MEMORY POWER ON/OFF TEST

DATE GREATEDI

JUNE 11.

MAINTAINERI

UIAGNOSTlc GROUP

ayvnonx

BRUCE HANSEN

1971

(

ABSTRACT
—-_—-o-—

THIS
A

(\I

PRocRAM

MEMORY

VALIDITY TEST

DATA

USED

AFTER

SIMULATED POWER FAIL.

REQUIREMENTS

EQUIPMENT
——————— p

EOUIPPED WITH TELETYPE

EDP-8E

STORAGE
ore-u—w-

MEMORY LOCATIONS 0000(8)

BINARY LOADER AND RIM MUST
3.

7601(0)

BE STORED

LAST MEMORY PAGE.

USAGE
trua-

LOADING
.v-u-uu

NORMAL

BINARY TAPE LOADING PROCEDURES

START UP
.—._—

-—

AND/0R ENTRY
racy-n

pn-QC

THE PROGRAM
LOAD ADDRESS Deal. Pnzss CLEAR AND THEN CONT.
LOAD ADDRESS 6221.
SHOULD THEN HALT AT LOCATION noxica).
THE PROGRAM SHOULD NOH LOOP.
PRESS CLEAR AND THEN CONT.
ERRORS

USAGE

ERRORS DETECTED BY THE PROGRAM CAUSE THE PROGRAM TO MALT AT
MEMORY LOCATION 0047(8).
THE CONTENTS OF MEMORY ADDRESS
0011(8) AND 0012(6) INDICATE THE ADDRESSES OF THE DATA THAT
FAILED TO CHECK—SUN.
MEMORY ADDRESSES 0007(8) AND 0010(8)
CONTAIN THE DATA HORDS THAT FAILED TO CHECK-SUM.
LOWER

ADDRESS

(5011(8))

202(8)-4001(8)

UPPER

ADDRESS

(0012(8))

4002(D)-7601(8)

LDHER ERROR

HORD

(0007(8))

2525(8)

UPPER

ERROR

WORD

(0010(8))

5252(8)

ERROR

RECOVERY

..--.—-

—--—-—--

PRESS CONTINUE To TEST
RELOAD MEMORY 00 3.2.

FoR

OTHER ERROR WORDS

MEMORY.

DESCRIPTION
.-_--~—-v"-

4.1

PROGRAM TESTS MEMORY FOR BIT DROP OUT AND PICK UP AFTER
SIMULATED POWER FAILURE HAS OCCURRED.

THIS
A

BY STARTING THE PROGRAM AT MEMORY ADDRESS 222(8). DATA WORDS
CONSISTING OF 2525(8) ARE WRITTEN INTO MEMORY LOCATIONS
4221(8). AND DATA HORDS CONSISTING OF 5252(8)
2222(8)
ARE WRITTEN INTO MEMORY LOCATIONS 4222(8)
7621(2) AFTER
HHICH THE PROGRAM HALTS AT MEMORY ADDRESS 2231(8).
LOAD
ADDRESS 2221(8) AND RESTART THE PROGRAM) THE PROGRAM HILL 2'5
ADD THE CONTENTS OF MEMORY LOCATION 222(8) HITH 4222(5).
IF
THE RESULTS EOUALS 7777(8) THE PROGRAM HILL 2’5 ADD THE CONTENTS
OF MEMORY LOCATIONS 223(8) HITH 4223(8) ETC.
UNTIL THE MEMORY
ADDRESSES OF 4221(8) AND 7621(8) ARE TESTED.
THE PROGRAM
STAYS IN THE 2'8 ADD COMPAR’ LOOP UNTIL AN ERROR OCCURS.
AFTER
CONCURRENTLY CYCLE THE PONEm ID THE POP-8E OFF AND ON.
THE PONER HAS BEEN REAPPLIEQ TO THE PDP-SEr LOAD ADDRESS
IF AN ERROR OCCURRED
221(8) AND PRESS CLEAR AND TEEN CONTINUE.
DURING THE PONER CYCLING. THE PROGRAM HALTS AT LOCATION
THE PROGRAM MAY BE RESTARTED AT MEMORY ADDRESS
2247(8).
RESTART ADDRESS TO FILL
2221(8) AS MANY TIMES AS DESIRED.
MEMORY WITH DATA NORDS IS 2222(8).
—

4.2

AND/0R APPLICATIONS

EXAMPLES

MALT OCCURS AT MEMORY ADDRESS 2247(8).

ADDRESS 227(8)

2535

(DATA WORD)

ADDRESS 2212(8)

5252

(DATA

ADDRESS

2211(5)

2272

(ADDRESS HORD)

ADDRESS 2212(8)

4272

(ADDRESS HORD)

BIT

HAS PIOKED UP

EXECUTION TIME
---—-—w--

9---

MSEC/LOOP

MEMORY

HORD)

ADDRESS 2272(8).

/PDP\\

muonY

0200
0201

0000
0001
0002
r0003

0004
0005
0006
0007
0010

0011
:0012
0013
0014
0015
0016
0017
0020
0021
0022
0023

POWER

0200
5013

ON OFF

JMP
JMB

3000
7300

START:

1056

NRKON;

1061

CDMPAR

EBGGMNLG

CLL

40 >0— O> K0201

'2026

1007

CIA
TAD K4001

0027

7640

SEA

0030
0031
0232
0033
0034

5020
7402
7300

JHP HRKON
AHLT

0040
0041
5042
0043
0044
3045
0046

3007
1412
3010

0051
0052
0053

0054
2055
0056
0057
0060

1411

1007
1010
7040
7440
7402

CLA

ITURN PDHER ON OFF

CLA
TAO
OCA
TAD

CLL

TAD
DCA
TAD
DCA
TAD
TAD

I LOHM
UPPER

ILUHMIUPPER ADDRESS 202-4001

IHIGHSLOHER ADDRESS 4002-7601

HIGH

LOHER
UPPER
LOWER

CMA

£1!

1011
7041
1057
7640
5037

5032
0201
4001
2525

INITIAL

K0201
LOHM
K0001
DCA HIGH

3011

3012

0050

CONPARo

1056

1057

9047

STEND:

ISTART

DCA LOHM
TAD K4001
OCA HIGH
TAD UPREG
DCA I LORH
TAD LOREG
DCA I HIGH
TAD LONH

0412
1011
7041

0036
0037

15:49

START

0024
0025

0035

-71

3 ‘0

UPPER.
LOVER:
LOH".
HIGH.

3011
1057
5012
1060
3411

0000
0000
0000
0000

v14:

IPDP 8E MEMORY POWER 0N OFF TEST
0200

5032

'0000
0000
5001
0002
0003
0000
0000

PAL10

TEST

SZA
HLT
TAD
CIA
TAD

LDNM

52A

CLA

IERRDRoDOES NOT COMPARE

K4001
/RETURN
/END OF

K0201.
K4001.

JMP COHPAR*5
JM9 COMPAR
0201
4001

UPREG»

2525

/ERROR

TO CHECK MEMORY
TEST AREA GO TO

HORD 2525

SETUP

PAGE

IPDP

nanoav

pouzn

5661

5252

0N arr

TEST

LOREG.5252

PAL1I

V141
IERROR

9-JUN'71

15349

PAGE 1~1

HORD 5252

—
.

morn“4-1pm..