Digital PDFs

MAINDEC-8E-D0HC-D

December 1971

12 pages

Original

0.3MB

Document:	Random JMP Test
Order Number:	MAINDEC-8E-D0HC-D
Revision:
Pages:	12
Original Filename:	https://svn.so-much-stuff.com/svn/trunk/pdp8/src/dec/maindec-8e-d0h/maindec-8e-d0hc-d.pdf

OCR Text

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PRODUCT couEi

M’AXNDEC-BEsDDHC-D

PRODUCT NAMEi

RANDOM JHP

017: CR£;#ED%

JUNE 1i:

MAiNTAINERi

MAGNOSHC GROUP

AUTHORi

BRUEE HANSEN

TEST

1971

ABSTRACT
MOST OF
THIS PROGRAM YESYS THE JMP INSYRUCTXON OF THE PDPIBE.
MEMORY IS USED AS A JUMP FIELD WITH A RANDOM NUMBER GENERATOR
SELECTING EACH JUMP FROM AND JUMP TO LOCATION.

REQUIREMENTS
2}i

EQUIPMENT

POP-DE

2}2

EQUIPPED HIYH'TELETYPE.

STORAGE
P--9?99

DDDO.D421.
PAGE.

2.3

THE

BINARY

LOAOER MUST BE STORED

PRELIMINARY PROGRAMS
pan-unqug-

sync-u..-

17 IS ASSUMED THAT MA!NDEC-8E-DflAlN).
RUN successruLLv}

3}i

IN THE LAST MEMORY

PROCEDORE

acct-q!

.Q--g,..g

AND NAINDEc-DE-DDDCN:

METHOD

use STANDARD BINARN

LDADER;

STARTING

4.1

CONTROL

SN¥TCH SETTINGS

SRD(D)

HALT ON

SR2

HOLD JUMP FROM ADDRESSES CONSTANT.
SELECT RANDOM JUMP FROM ADDRESSES.

SR3

HOLD JUMP To ADDRESSES DDNSTANY}
SELECT RANDOM JUMP TO ADDRESSES.

STARTING

PROCEDURE

ADDRESS

D2DD

RESTART

0214

ADDRESD

ERROR.
(1)
(D)
(1)
(D)

RAVE

4}S

OPERATOR

Acron

--—.---!

QI-I-q

SET

SR TO DESIRED MODE}
1? A PARTICULAR MEMORY LOCATION
IS DESIRED_FOR EITHER A "CONSTANT FROM" OR "CONSTANT_?O".
THIS MEMORY ADDRESS IS ENTERED INTO ONE OF THE LOCATIONS
SHOWN BELONI

926D

AND PRESS LOAD

ADDRESS,

SET

FROM 1

ADDRESS

6120

FROM

ADDRESS

0117

ADDRESS

5116

ALwivs HARE (rRoM 1}

NOTE!

(FROM)

-1

IF snz on an: Is 5:! AFTER THE PROGRAM HAS BEEN STARTED:

THE

LAST abonzss TNKEN FROM THE RANDOM NUMBER chengron is
usso REPEATEDLY,
c.

Pngss eLean THEN courxnuc.

;

OPERATING

enchoua;

p—ugugoaw

I-E-C.-!!

SAME AS

ERRORS

blf

canon

secron 4}

MALT?

IF
ALL UNUSED MEMORY LOCATIONS ARE LOADED HITH HLT ORDERS.
THE
PROGRAM EXECUTES ONE OF THESE BACKGROUND HLTS: IT IS PROBABLE',
THAT THE INTERRUPT FAILED TO OCCUR FOLLOWING THE JMP INSTRUCTION.
'

6.2

ERROR

PRINTOUTS

Ila-0n-

.lbq-ID-q

HHHH

XXXX

YYYY

(FROM) F RNNUIUNNN = THE ADDRESS or THE JHP INSTRUCTION;
(TD) T xxxx: xxxx = THE ADDRESS THAT THE JHP INSTRUCTION Is JUMPINO
(LDC OOOO) z ! YYYYE YYYY ! THE AOOREss STORED IN LOCATION
OOOO DURING THE INTERRUPT.
.

THAT YYYY SHOULD EQUAL XXXX}

NOTE

THE FOLLOWING IS A TYPICAL ERROR PRINTOUTI

EXAMPLE!
F

4252 TD 7626

7065

LINE 1 or THE PRINTOUT

A JHP
STAYEHENT or THE PROBLEM.
THIS JMP TNSTRUCYION IS
TRYING TO JUMP To EOOATION 702:.
LINE 2 OP THE PRINTOUT INDICATES
THE ERROR.
Tu: Tu AOOREss (Tags) HAS TO HAVE SEEN sTOREO IN
THUS BIT 7 His
LOOATION Ozzy BUT INsTEAO A Tana HAS sTOREO.

INSTRUOTION IS PLACED AT LDCAIION A252:

DROPPED.
ERROR

REOOYERY

("-39

9299.--:

THE PROGRAM CONTINUES TEsTINc POLLONINO AN ERROR PRINTOUT;
NREN
ENOUOH INFORMAIION HAS BEEN GATHEREO FROM THE ERROR PRINTOUTO.
A PROM AND TO AOOREss Is SELECTED FOR USE IN THE SOOPE MODE LOOP:
ENTER THE cHoszN ADDRESSES INTO PROPER LOCATIONS 58E: SECTION
SR2 ANO SR3 SET.
AFTER
4.3.5).
RESTART THE PROGRAM
PUSH HALT. ENTER I552!) INTO
ALLONING IT TO RUN EOR_A HOHEN
LOCATION 1. ANO RESTART THE PROGRAM AT LOCATION 5927 HITR OR!
THE SCOPE MOOE LOOP :5
AND 3R3 SET.

N‘TH

LOCATION

CODING

OOOO
0001

WHEN

THE

FROM 1

JMP

XXXX

IDN

XXXX

JHP

9120

FROM

IT IS DESIRED TO DISCONTINUE YHE SCOPE MODE LOOP, RESYORE
ORIGINAL CONTENT 1116 INTO LOCATION 1: AND RESTARY THE PROGRAM:

RESTRICTIONS
P-CIIIQQ-Duq

(NONE)

To:

MISCELLANEOUS
cons-uuouqs-q

8'.1

EXECUTION TIME

Tana RANDOM

TESTrsECONo

RRocRAH

ocgcRxRTTON

p-119-..

Pf-O’OQ-uflg

TNSTRucTTpN is CHECKED THROUGH THE use or THE TNTERRuRT
VA RANDOM NUMBER GENERATOR ssLECTs A rRoN AND A To
AN TON :NSTRUCTTON Ts THEN PLACED AT FRONei AND THE
ADDRESS.
JMP INSTRUCTION AT FROM.
THE JHP INSTRUCTION JUHPS To THE
AFTER :xEcuTTNG THsss THO
Aoaaess apecxrico RT To.
THE

JHP

FUNCTION;

OflfiEfifié‘AN~A
xNTcRRuRT occuRs STARTTNc THE PROGRAM COUNTER AT LOCATIGH
A,

CHECKING RouT:NE LocAT o HERE VERIFIES THAT THE OPERATION HA3
SUCCESSFUL BEFORE STAR INC THE NEXT TEST.

H400<3ANDDM ABDRESS
RANDOM ADDRESSES ARE RESTR‘CTED AS FOLLOWS!
ANo
:5
FILLED
HTTH HLT
Rana
<7¢azg
TH: AR:A BETHEEN
Tea:
A ”HO" :8 RRTNTeo
INSTRucTTONs TN cAsz THE TNTERRURT TAILs,
AFTER :AcH GROUP or 72.noa TESTs;

)

)
IRANDOH JMP

TEST

PAL10

17-JUN-71

V141

11441

PAGE

/RANDDM JMP TEST

/$R0(0)=HALT ON ERROR
ISR2(1)=CONSTANT FROM ADDRESS
ISR3(1)3CONSTANT TO ADDRESS
0000

a0
xroa scopa non: INSERT
/JMP 1 rnon1 <552a1 INTO LDC.

0000
0001

0000

5001

JMP

0002
0003

2
3

0004
0005
0006
0007

0002
0003
0000
0000
71am
5534

0010
0011

1115

cLA
JHP x AER
TAO HAL?

3517

0012
0013
0014
0015
0915
0017
0020
0021
0022
0023
0024

0025
0026

0
0

SEA

raon

DOA

1115

TAO
DCA
DOA

HALY
I raon1

7a51
1140
3140
1140

XAC

3521
sane

TAO

DOA CT
TAD CT
52‘ CLA

7640
5527

J"?
JHP
SUP
7A9
OCA

54:4
0316
1142
3141

Loop
1

3&1

H17
cTI

ICHECK FOR CONSTANT FROM
0027
0030
0031
0032
0033

7604
7004
7006
7630
5057

LOOP.

LAS
RAL
RTL
52L CLA
JMP LOOP1

/5ELECT RANDOM FROM
0034
0035
0036
0037
0040
0041
'0042
0043

0044
0045
0046
0047
0050
0051

1121
7104
7430
1122

3121
7100
1121
1124
7630
5034
1121

1123
7620
5034

GEVRAN.

TAD

RANUM.

RAL CLL

SZL
TAD
DCA
CLL
TAD

THREE
RANUM
RANUM

LIHHI
SZL CLA
JMP GEYRAN
YAD

TAO
TAO

RANUM
LIHLO
SNL CLA
JMP GETRAN

lRlNDDM JMP VEST

PALlD

17iJUN-71

V141

5052

1121

TAD RANUM

3053
0654
2355

3117

DCA FROM

7245
1117
3125

CMA
TAD
DCA

0556

FROM

FROMl

ICHECK FOR CONSTANT
0957

7654

0560
5661

7936
7006

6362
5563

51l4

Loopi.

11341

ADDRESS

LAS

RTL
RYL
SEL CLA
JHP 42L?

7635

ISELECT RANDOM TO ADDRESS
lflél

9965
5066

5067
3075

9971
5072
5573
$074

1121
7124
7431
1122
3121

GTRAN1I TAD RANUM
R‘L CLL
SZL

71:2

CLL

TAD THREE
DCA RANUM

1121

TAD RANUM
TAD LIMHI

1124
7531

52L CLA
JHP GTRAN1
TAD RANUM
TAD LIMLo
SNL OLA
JHP GTRAN1
,

5275

1576
6577

0100
9151
5152
2103

5064
1121
1123
7620
5014
1121

TAD RANUM
0C1 TO

3116
IPLACE

3184
2105
0156

1125

9107

3520

9110
5111

6041
6546

@112
0113

6241
5112

JPLP.

3517

INSTRUCTIONS
TAD

JHP1

DCA 1 FROM
TAD {TON
DCA 1 rnon1

1126

IRAXSE FLAG
TSP

TLS
TSF

JMP
100

2114

5520

2115

7462

HALT.

JMP
HLT

/CONSTANTSa

FROMl

IJUMP

VARIABLES;

AND

SUC

FAILED

PAGE-1&1

)

)
IRANDOH JMP

TEST

6116

name

To.

0117
0120
6121

name
BEBE
2525
mama
746$
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2525
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JHP I
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265

5122
6123

0125

fl;2§
9123
8127

3139
$131
£132

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ball
626$
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THREE.

LIMLQI

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JMPl,
X‘ON.
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MSK7.
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l;44
5145
3346
5447
515%
$151
3152
5155
l154
5155
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1157
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mags
32;2

ITTY MESSAGE
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212

5240
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613‘
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17-JUN-71

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215
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2212

2165

$377

377

6166
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3173
3171
8172
6173
3174
3175

0332
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0275
6240

332
24D
275
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/RUBOUT
ll LOCATION EERO

3176

5626
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9000
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INS9,
INSIBo
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0266

«209

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257

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PAGE

iiz

xRANDOM JHP TEST

24110

V141

17-Jun-71

/SPREAD HALTS
0200
0201
0202
0203
0204
0205
0206
0207

0210
0211

0212
0213
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PATCH

amp

7041

HALT

1116

CIA
001
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001
740

7001
3116

140
004 TO

1115

CON.

3516

140

1116
1124
7640
5203

/140 LIMLO

10
1 $0
TO

740 LIMHI
321 0L4
JMP can
740 M10

0216

1367
3141
3140

001 071
0c; 07

0217

5027

JHP LOOP

0220
0221
0222

1117

021:

PAGE

THROUGH MEMORY

5770

3116

11:41

IERROR ROUTINE:

0223
0224
0225

0226
0227
0230

0231
3232
0233
0234
0235
0236
0237
0240
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140

004 1N31
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MA
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740
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740
004
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710
AND
710
004

1000

740

4341
31.72

JHS

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3100

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1127

3160
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JHP TEST

PALiE

17-JUN-71

V141

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1131

710

0232
0233

0130

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3173
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£330
0393

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0302

IPRINT ERROR MESSAGE
TAU AHSGi
95A WORK

LP;

7201
1135
3135
1535

TAD

WORK

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war
JHP

5331

0304

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710 103
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3175

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0317
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0323
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0330
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0335
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WORK

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I WORK

X‘C

TLS
YSF

JMP

1’1

7‘0

H303

52A

CLA

JHP LPl
JHP LOOPHZ
SLOC:

/HALT

ON ERROR

PAGE

104

IRANDOH an? 7257

PALIG

2342

3133

2243

1123

2344

7212

2345
2342
2347

7212
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2352
2351
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2353
2354
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2N2
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7212

7212

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1127

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6362
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215

2212

2:2
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353

2312

2322

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SAVE *1

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PAGE

SAVE *2
SAVE *2

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34¢:

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7212

72 2
3111

236!

17'JUN-71

V141

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X24

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1116
CIA

/TAD 6

1222
X44
X5.

TAD
205

LIMLO