Digital PDFs

MAINDEC-8E-D0GC-D

December 1974

12 pages

Original

0.3MB

Document:	Random DCA Test
Order Number:	MAINDEC-8E-D0GC-D
Revision:
Pages:	12
Original Filename:	https://svn.so-much-stuff.com/svn/trunk/pdp8/src/dec/maindec-8e-d0g/maindec-8e-d0gc-d.pdf

OCR Text

IDENTIFICATION
PRODUCT coon

MAINDEC-aE-DIGC-D

pnoouc'r NAME!

RANDOM DCA usr

on: CREATED:

JUNE 11.

MAINTAXNER:

ouauosnc snoup

Agmom

enuce HANSEN

mmmro 19,,

KIWI!" I”
‘\‘“»

M4,,”

1971

)

’

ABSTRACT
n~-_—u-p~

THIS PROGRAM TESTS THE USA INSTRUCTION OF
DCA INSTRUCTION ADDRESS: OPERANO ADDRESS.
FROM A RANDOM NUMBER GENERATOR-

THE POP-B/E.
AND OPERANDS

THE

ARE

TAKEN

REQUIREMENTS
-9—-,-n¢--'”—

2.1

EQUIPMENT
-r’cn'u-I

POP-DIE EOUIPPED HITH TELETYPE.
2.2

STORAGE
-pq-nu-

DIAGNOSTIC PROGRAM

IS STORED IN LOCATIONS DOB! THROUGH
THE PROGRAM USES C415 THROUGH 7600 FOR A TEST AREA.
THE BINARY LOADER MUST BE STORED IN THE LAST MEMORY PAGE.
THE

C407.

2.3

PRELIMINARY PROGRAMS
p-q-——w--.-'-

-—- ——--—-

MAanEc-aE-DEA(N).
3.

LOADING PROCEDURE
-.-_,..-

3.1

AND MAINDEc-aE-DaB(N)

o- ------

METHOD
-p---‘

THE

STANDARD BINARN LOADER

IS USED.

STARTING PROCEDURE
-O- -------------

4.1

CONTROL

SWITCH SETTINGS

—. —————

s'-——n

HALT AFTER ERROR PRINTOUT.
BYPASS ERROR PRINToUT
HOLD "FROM" CONSTANT (1).
SELECT RANDOM "FROM" (0).
SELECT RANDOM "OPERAND
HOLD "OPERAND ADDRESS" CONSTANT (1).
ADDRESS"
(O).
SELECT RANDOM "OPERAND" (O).
HOLD "OPERAND" CONSTANT (1).

SRO

(O)

SR1
SR2
SR3

(1)

SR4

-n—u—--g

STARTING

ADDRESS

~¢———w-_

a ------

DECO

4.3

OPERATOR ACTION
-----'

fl-F"-E-

1.
2.
3.
4.

SET IR TO ”20!.
PRESS LOAD ADDRESS
SET IR TO 3686
PRESS CLEAR THEN CONTINUE

OPERATING PROCEDURE
visa-n--.

SAME
6.

‘I-9’--.--

IECTION 4.

ERRORS
-Uw-g.

6.1

ERROR PRINTOUTS
9-9--

--.--—_'.

XXXX

YYYY

RRRR

MHHM

NNNN

FROM.

xxxx

ADDRESS.

YYYY

WHERE xxxx
INSTRUCTION
wHERE

YYYY

ADDRESS

THE

OCA

ADDRESS WHERE OcA HILL

DEPOSIT OPERAND
OPERAND

LOCATION.

CONTENTS.
END.

NNNN

WHERE

NNNN

THE

RRRR

NHERE RRRR

HMMM

”HERE

THE

WHERE

MMHM

OPERANO To OE DEPOSITED.

NONiERO LOCATION SOME»

TEST

FIELD.

CONTENTS

LOCATION RRRR.

THIS LETTER IS TYPED T0 INFORM THAT THE
ENTIRE TEST AREA HAS BEEN SEARCHED FOR
NONEERO OPERANDS.

6.2

EAANPLES

POLLOHINO IS

THE

4572

L
E

OED!

TYPICAL

I205
2527

ERROR PRINTOUTI

2525

IT SAYS THAT A OCA
LINE 1 I3 SIMPLY A STATEMENT OF THE PROBLEM.
INSTRUCTION LOCATED AT 4572 TRIED TO DEPOSIT THE DPERAND 2525
INTO LOCATION 9205.

.15

LINE 2 SAYS THAT INSTEAD OF FINDING A 2525 IN LOCATION 0295:
THE E
THE FROGRAM FOUND A 2527.
BIT 10 HAS "PICKED UP."
SIGNIFIEO THAT A SEARCH OF THE TEST AREA SHOHED ONLY THE ABOVE
PRINTED LOCATIONS DIFFERINO FROM HHAT THEY SHOULD BE.
FOLLOWING

THE

4572
D315

L
E

A
C

IZOS
2525

TYPICAL ERROR PRINTOUT:

A
D

2925

1 IS A STATEMENT OF THE PROBLEM AS IN THE PREVIOUS EXAMPLE.
LINE 2 SAYS THAT LOCATION 5215 CONTAINS 2525. AND THE E ON LINE
IT IS APPARENT
3 SAYS THAT NO OTHER LOCATIONS HERE DISTURBED.
THEN THAT THE OCA INSTRUCTION DEPOSITEO ITS OPERAND NOT INTO
BIT 8 HAS "PICKED UP”.
LOCATION 3205» BUT INTO LOCATION $215.

LINE

ERROR RECOVERY
---_-

u-gvut---

TO ENTER A SCOPE MODE LOOP; SET SRO TO A D.
HHEN A HALT OCCURS
FOLLOWING AN ERROR. SET SWITCHES 1a 2; 3. AND 4 AND PUSH CONA SCOPE MODE LOOP IS ENTERED USING THE CONDITIONS
TINUE.
DESCRIBED BY THE LAST ERROR PRINTOUT.

DESIRED

OF CONDITIONS:
ENTRIES:
SET

ENTER A SCOPE MODE LOOP USING A SPECIFIC
STOP THE PROGRAM AND MAKE THE FOLLONING

ENTER DESIRED FROM ADDRESS

ENTER

ENTER DESIRED OPERAND INTO MEMORY LOCATION 3176.

RESTART

THE

INTO MEMORY LOCATION 01é7.

DESIRED OPERANO ADDRESS INTO MEMORY

PROGRAM USING

CONTROL

SHITCH

LOCATION D166.

SETTING OF 3660.

RESTRICTIONS (NONE)

MISCELLANEOUS

8.1

EXECUTION TIME
Eg—D-F----

a—qu-u

TEST9/PASS
PASSES/BELL
27.328 RANDOM TESTS/PASS
3994 RANDOM
7

PROGRAM

DESCRIPTION

uw.--—.

.-------.--

MEHORY

LOCATIONS 6410 THROUGH TODD ARE DESIGNATED As TEST

AND EEROEs ARE DEPOSITED INTD EACH AT THE BEGINNING
PROGRAM.
THE PROGRAM NOH SELECTs A LOCATION FOR THE DCA
THIS SELECTED LOCATION MAY BE SPECIFIED OR RANDOM.
INSTRUCTION.
THE OPERANo AND
DEPENDING UPON THE SHITCH REGISTER SETTING.
THE PROGRAM
OPERAND ADDRESS ARE CELECTED IN A SIHILAR HANNER.
NON JUMP: TO THE TEST OCI, pERroRHs THE INSTRUCTION. THEN JUHPS
BACK TO A CHECKING ROUTINE.
THE CHECKING ROUTINE VERIFIES THAT
IF AN ERROR Is DETECTED.
THE oPERANO HAS oEPosITED CORRECTLY.
THE ERROR ROUTINE SEARCHES THE TEST AREA AND PRINTS THE CONTENTS
or ANY NONEERD LOCATION EXCEPT FOR THE TEST OCA INSTRUCTION.
UPON COMPLETION or THIS SCAN THROUCH THE TEST AREA. AN E 13
PRINTED AND A NEH TEST Is aECUN.

LOCATIONS.

THE

TELETYPE BELL RINGS AFTER 7 PASSES 0F 39D4 TEST/PASS,

IRANDOM

)
DCA

TEST

PAL10

9-JUN-71

V141

TEST

IRANDOM DGA

ISRO(0):HALT 0N ERROR
ISRl(1)3NO PRINTOUTS
ISR2(1)=CONSTANT FROM
/SR3(1)SCONSTANT OPEIAND ADDRESS
ISR4(1)=CONSTANT OPERAND
0000

0001
0002
0003
0004
0005

Dana
0000

9001

JHP 1

9992
mass

2
3

9000

0
0

gain

0006

7771

0007
0010

D400
pang

0011

0000
0300
0207

GNTZD
PSUBI

7771
SUB

WORK:

ONT:
H7500:

207

son;

BEL;
THREE:
[CLEAR
’20

MEMORY

302a
0020

1175

START:

0021

301a
3415
1aza

TAD LXHLO
DCA WORK
DOA I HORK
TAD HORK
CIA
TAD LIHHI
80A CLA
JHP STARTOZ

0012
0013
0014

0022

0023
0024

0026

7fl41
1174
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0027

sa22

0050
0031
0032
0053

7604

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LAS
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0K1.

751a

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5952

JMP CKZ

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JMS GENRAN
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£154

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PAGE

IRANDON

DCA TEST

FALID

9-JUN'71

V141

ICHECK FDR CONSTANT OPERAND ADDRESS
0052
DEBS

7604

5054
D655
0056

7094

6K2.

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5275

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6069

LAS

vane

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OPERAND ADDRESS
JMB GENRAN
DOA OPAD

6591
B062

1196

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5071

TAD OPAD
SPA
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5664
$665
$266

7041

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1175

1174

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JMP CK2¢5
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THE INSTRUCTIONS
TAD DCA1
DOA X FROM
TAD FROM
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DCA FRDMPI
TAD JMP1

PAGE

1-1

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PALlfl

TEST

9-JUN-71

Vi‘i

£123
0124

3573

DCA

117a

TAD

9125

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0126

5597

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NOP
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HLT

0130
$131
$132
$133
$134

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0135
0136

3596
3597

9137

3573

0140

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15347

PAGE

1-2

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OPER

FROM

/GO OUT TO TEST
IJHP FAILURE

[RETURN FROM TESY

:17a

794a
4577

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$142
5143

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6150

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6151
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5165
1165
5554
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5105

JMP 6K1
DEA ONT
IS? CNT2
JHF CK1
JHS I PSUB
JMP CK1

4467
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0000
7200

TAD ! OPAD
CIA
TAD OPER
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DEA I FROM
DOA I FRONPl

[RING BELL AFTER 7 PASSES OF 3934
TAD CNT
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03A CNT
TAD CNT
TAD M7590
SEA CLA

2906

E154
0155
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6162

BACK:

IRANDOH NUMBER
GENRAN- a
CLA

1165

GENERATOR

TAD RANUM
RAL CLL
53L
TAD THREE
DOA RANUM
TAD RANUM
JMP I GENRAN

RANUM:

2525

ICONSTANTS AND VARIABLES
amen

0156
5167
0170

3091
2525

$171

35§6

9172

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same

5173
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OPAD:
FROM:
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LIMLO:
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TEST

PER PASS

IRANDOH

DCA

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TEST

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5626

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SPA
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JMS
TAD
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JMS
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START

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ON ERROR

ERR

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LOCA TION

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WORK

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TAO L
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WORK

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WORK

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PAGE

15l47

TAD I HORKl
JHS TYPAC

(MAYBE)

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PALlI

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9. JUN-71

PRINT
LF
PRINT
I ER1

IPRINT FIRST LINE 0F ERROR
0265

0966

0266
5267
3276
6271
0272
0273
5274
5275
0276
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0356
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PHD:

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CLA
TAD
JHS
TAD
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TAD
JMS

;377
6351
117a

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1367
4351
$167
6310

1371

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1375
4351

0305

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B307

4351
5665

JHS
TAD

$312
5313

0314
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03;6
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6321
6322
6323
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0325
0326
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6336
5331

0332

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JMP

TYPAC:

3366

CONTENTS

JHP
DCA

SAVE*3
TAD SAVE*3

;366
7a12
7610
3365
;365
7012
7910

RTR
RAR
DOA SAVEOZ
TAD SAVE*2
RTR
RAR
DCA SAVEol

3364

1364

TAD SAVE§1

7012
7016

RTR

RAR
DCA SAVE
TAD SPACE

3363

g37z
6351
;357
3360

1363
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JHS
TAD
JMS

[TYPE

9316
D311

JHS PRINT
TAD FOUR
DCA CTR

LUP:

TAD SAVE
AND MSK7
TAD TH6

OCTAL

15347

PAGE

1-4

IRANDOH

DCA TEST
0335
E336
5337
E340
0341
I342
I343
B344

PALlfl

V141

4351

JHS PRINT
7‘0 SAVE‘l
DCA SAVE

;3¢4
3363

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DCA SAVE‘l
TAD SAVEfi3

3364

;366
3365

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IS! CTR
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TAD SPACE
JHS PRINT
JH' I TYPAC

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9345

5;:2

5346
335$
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5354

6941

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5353
72mm
5751

JHP
CLA
JMP

D347

0355
B356

9-JUN-71

PRINT:

o'1

ICONSTANTS
U357
6360
9361

3392
B363
3364

E395
0336

B367
B370
0371
0372
6373
5374
£375
B376
B377

B400
5461

6402
B403
2494

5455
D4l6
54a7

7774

9000

flflfl7
€265
0908
gaze
0000
even
0326
$240

POUR:
CTR:
HSK74

‘4

7H6!
SAVE:

”25”

B
7

a
Q
5
a

f:
SPACE:

356
245

331
31‘

03e3
0385

A:
La
Ca
E:

mags

CR:

215

2212

LF:

212
317

0361
6314

2317
3400
9000
1297
3506

I406

SUB:

TAD PASS
DCA CNT?
TAD BEL

1013
9046
7200
5600
7771

333
355

PASS!
5

TLS
CLA
JMP I
7771

SUB

15l¢7

PAGE

1-!