Digital PDFs

MAINDEC-15-D1GA-D

January 1970

19 pages

Original

0.4MB

Document:	PDP-15 Memory Address Timing Test
Order Number:	MAINDEC-15-D1GA-D
Revision:
Pages:	19
Original Filename:	http://bitsavers.org/pdf/dec/pdp15/diag/MAINDEC-15-D1GA-D_PDP-15_Memory_Address_Timing_Test_Jan70.pdf

OCR Text

'?P p- f C;11 c' ill} R Y

IDENTIFICATION
[lnODUCT CODE:

MAINDEC-15-DIGA-D

l-RODUCT NAME:

PDP-IS MEMORY ADDRESS TIMING TEST

DATE CREATED:

JANUARY 10, 1970

MATAINER:

DIAGNOSTICS GROUP

AUTHOR:

J. M. GRAETZ/J. RICHP.RDSO:J

(D)

ABSTRACT

This program is designed to test the action of long carry chains under the extremely
tight timing conditions that obtain at the far end of extended memory. In each register from
10000 to the upper limit of memory, a word of all 1s is stored, t~en incremented using ISZ.
The result is tested to see whether the carry chain was successfully propagated -- the correct
result in each case is 000000. Provisions are made for error prin~out and halt I scoping, and
repetition.
2.

REQUIREMENTS

2. 1

Equipment
A PDP-15 with at least 8192 words of memory.

2.2

Storage
The program occupies registers 00000-00644.
The test field extends from 10000 to the top of memory.

2.3

Prel iminary Programs
None

LOADING PROCEDURE
The program tape is in absolute binary.
Place the program tape in the reader.
Set the Address Switches to 17700.
Place the BANK MODE S~itch on a 1.
Press I/O RESET, then READIN.

STARTING PROCEDURE

4. 1

Control Switch Settings

SW 0

0:
SW 1

1:
0:

Scope Mode. Repeat the current test cycle.
Normal mode. Do not rep+at cycles.
Do not ha It on error.
Norma I mode. Ha It on oc~urrence of an error, after
printout, if any.

SW 2

Do not print error data.
Normal mode. Print error data.

1:
0:

SW 15-17:

Number of additional 4K memory banks provided. (Must be
at Ieast 1 to execute the test.)

NOTE
SW 0 has precedence over SW 1; that is, if SW 0
is set to 1, SW 1 has no effect. Thus, the error
halt is automatically suppressed while the program
is operating in scope mode.
4.2

Operator Action
a. Set the ADDRESS switches to 0200.
b. Set the control switches as desired
(see Section 4. 1).
c. Press Reset, then START.

OPERATING PROCEDURE

5. 1

Switch Settings
See Section 4. 1 •

5.2

Operator Action

Normally, the program runs without intervention, until the operator stops it manually.
When errors occur, there are severa I ways to proceed. Here are some common ones.
Set the switches as follows:

o 1 2
000

number of additional 4K banks
(beyond the standard 4K)

Start the program. At the occurrence of the first error, the data will be printed and the
program will halt.
a. Option 1 - To gather more error data, set SW 1 to 1, and press CONT. At the occurrence of each error, the data are printed, and the program continues. When enough" information is
printed, set sw 0 to 0 and the program will halt after the next printout.

b. Option 2 - For SCOpin9j set SW 0 and SW 2 to 1, conneci- the scope, and
press CONT (SVV 1 now has no ,~ffect). As long as SW 0 is set to I, the program
will repeat the current test cycle (that is, using the same memory location),
regardless of whether the error occurs or not. In this way, an intermittent
fa ilure can eelS II y be detected on the scope.

c. Option 3 - If, while seoping, you wish to examine the same signal at
the next error site, strike any signal -generating key on the KSR33 key-

boord, This wili cause the program to break out of the repeat loop and
continue the sequential test until the next error occurs, at which point the
scope loop resumes. In th is way I the operator can step from error to error.

ERRORS

Error Halts and Descrietion

6.1.1

Not Enough Memory - If the operator forgets to set SW 15-17, the program

will pdnt
NOT ENOUGH MEMORY
and he! t (PC=O0047).

6.1.2

Timing tr:-ors - .At the first occurrence of an error, the following heading is
-'"'-T--;-----,_._-

pnnrec;;

EXTENDED MEMORY ISZ TEST
LOCATION CONTENTS
The dato are printed in their respective columns. For each error, the
LOCAl 10 f,\! of the register in error is printed, followed by the actual
CONTEt'-HS of the register. In every case, the correct contents should ,
of C(1Uhe, be 0000000 If SW 1 is set to 0, the program halts after the
printout (PC=()0263).

6.1.3

Skip Failure - if the ISZ instruction fails to skip after incrementing the
addressed register to 000000, the following message is printed:

SKIP FAilED
If rhe (kite ar;::: also in error, j'hese will be printed before the program halts
(PC=OO~263) ,

6.1.4

ExtraneOllS Error:, - If a program interrupt occurs from any device other than the
KSR33 keyboord~ the program halts at PC=O0030, with the I/o status displayed

in the AC.

o. Pklce the number of additional4K banks in SW 15-17, and press CaNT.

b, Press CO NT. See Section 5.2 for various operating options.
c,

Disable the external device causing the interrupt, then press CaNT.

6.3

Summary
Message or Data Printed

00030

I/O status

None
A device other than the KSR33 keyboard
caused a program interrupt. Recovery:
disable the offending device, and press
CONT.

00047

000000

NOT ENOUGH MEMORY
Switches 15-17 are all set to O. Recovery:
Set these switches to the number of additional 4K memory banks attached, and
press CONT.

00263

nnn

Location and contents of register. The
contents of the addressed register were
not successfully incremented to 000000.
Bits appearing as 1 indicate failure of the
carry chain. Recovery: Set the control
switches as desired, and press CONT.

00263

nnn

SKIP FAILED
The ISZ instruction failed to skip when
the addressed register was incremented
to 000000. If the reg ister data were
also printed, the skip probably functioned properly; if no data were printed
(indicating that the incrementing was
successful), then the fault is in the skip
itself. RecoJfery: Set the control switches
as desired and press CONT.

RESTRICTIONS
The program will not operate in a machine with less than 8192 words of memory.

MISCELLANEOUS

8. 1

Execution Time
0.'125 x n second for one complete pass through (4n)K of memory.

PAGE

EMTl

EMTl
.TITLE EMTI
.ABS
I

ICOPYRlGHT 1970. DIGITAL EQUIPMENT CORP.,
IMAYNARO, MASS.
IEXTENOED MEMORY ADORESS TIMING TEST USING 1St
I

.LOC 1
JMP
LAW
LAW
LAW

~0001

00r,iHH
00002
00003
00004

600001
777777
777777
777777

-1

-1
-1

00010
00010
00011
00012

AXP
AXT
AX3

0
I

00021
00021
00022

00023
~0024

00025

IAUTOINDEX REGISTERS
ITEXT STRING
ITAB COUNT
ISPARE

.LOC 10
000000
000000
"00000
740040
620020

75 000 1
040554
600030

KHAN

.LOC 21
HLT
JMP.
I
IKEYBOARD
I
CLC
nAC
JMP
I
ISPURIOUS

ICAL CATCHER
20
HANDLER
#KSIG
SPEX

ISET KEYBOARD

INTERRUPT

00026
00027
0011130
00031
00032
00033
00034

700314
740040
200560
703302
700042
703344
620000

SPIN
SPEX

JORS
HLT
LAC
CAF
ION
OBR
JMP.
.EJECT

lAC CONTAINS 1/0 STATUS
SAC

SIGNAL

PAGE

00200
00200
00201
00202
00203
00204
00205
00?06
00207
00210
00211
00212
00213
00214
00215
00216
00217
00220

EMTI

703302
200563
04001?11
200564
040002
200565
040003
200566
040004
750004
500567
740200
600221
200321
100324
750040
6002.00

I
IPROGRAM STARTS HERE
I
.LOC 200
IBGIN CAF
(DAC #SAC
LAC
OAC
1
(KSF
LAC
DAC
2
(JMp spIN
LAC
OAC
3
(JMp KHAN
LAC
OAC
4
LAS
(7
AND
Si!A
JMP
I NIT
LAC
NOMAD
PRINT
ENOM HLT!CLA
JMP
IBGIN
I

.EJECT

ISWITCHES 15-17
IEXTENSION ATTACHED?
IYES.
IND.
IGD TELL THE MAN

PAGE

~0221

EMTI

700042

~0222

74~001

00223
00224
12)0225
00?26
00227
00230
00231

040552
750000
300570
440552
600225
~405'55

750001

~0232

~40553

12)0233
00234

0405'54
200570
04"'562

~0235

EMTI
IINITIALlrING SEQU(NCE
I
I NIT
ION
CMA
OAC
#BANKS
CLA
ADO
(10000
RANKS
ISl
JMP
.-2
#LIMIT
DAC
CLC
#HSIG
nAC
KSIG
nAC
INIT2 LAC
(1°000
#YAP
OAC

IBANK COUNT
IFORM LIMITING ADDRESS

IADDRESS OF HIGHEST REGISTER
ISET HEADING SIGNAL
IPRESET KEYBOARD SIGNAL
ISET V-ADDRESS POINTER

00 23 6
00237
0024fi1
00241
00242
00243
00244
00245
00 2 46
00247
00250
00251
00252
00253
00254
00255
00256
00257
00260

707702
7512!001
060562
460562
60(11312
220562
741200
600306
140554
707704
750004
742010
751100
600267
540553
600261
140553
340322
100324

00261
00262
00263
00264
00265
00266

20(11562
100444
100415
220562
100437
100430

IMAIN TEST SrQUENCE
I
TEST EEM
CLC
DAC4)
YAP
YAP
Isl4)
SKIF"
JMP
YAP
LAC4)
TEY
SNA
TOK
JMP
KSIG
DrM
LEM
LAS
RTL
SPA!CLA
TNG
JMP
SAO
HSIG
JMP
TELL
HSIG
DrM
HEAD
TAO
PRINT
I
YAP
TELL LAC
PROCS
TAB
YAP
LAC4)
PROCT
CRLF"
I
.EJECT

IALL is TO Y
ITHIS IS IT!
ISKIP FAILED
IGET C(Y)
IC<Y)=0?
IVES: TEST OK
INa: CLEAR KBD SIGNAL

ISIoI-2
IPRINTING?
IND.
IYES. PRINT HEADING?
IND,
IVES. CLEAR SIGNAL

IGET ADDRESS
IPRINT IT
IPRINT CONTENTS
INEXT LINE

PAGE

00 2 67
00270
00271
00272
00273
00274
00275
00276
00277

EMTl

75~004

00300

740010
740500
750041
750004
750100
fl003!7l1
200554
741200
600236

00 3 0 1
00302
00303
00304
00305

200555
540562
600234
600236

00306
00307
00310
00311

750004
751100
600236
600301

00312
00313
00314
0031'S
00316
00317
00320

750004
742010
741100
2 00 323
100324
600243

00321
00322
00323

000500
000520
000512

44V')562

600"2'~3

EMTI
ISWITCH TESTERS
I
TNG
LAS
RAL
SNL!SMA
HLT!CLC
E1
LAS
SMA!CLA
JMP
XPO
KSIG
LAC
SNA
JMP
TEST
I
XPO
YAP
lSi!
LIMIT
L~C
YAP
SAD
JMP
INIT2
JMP
TEST
I
TOK
LAS
SPA!CLA
JMP
TEST
XPO
JMP
I
ISKIP rAILED
I
SKIr LAS
RTL
SPA
TEY
JMP
SKAD
LAC
PRINT
JMP
TEY
/

NOMAD NOMEM-l
HE~D
HEADER-1
SKAD SKIM-1
I
.EJECT

IHER( WHEN THERE'S AN ERROR
ISW0 AND SWl
ISCOPING OR HALT?
IHALT
ISCOPING?
INO.
lyES
lIS KBD SIGNAL SET?
INO. RFPEAT THE CYCLE
IYES. GO ON
lEND Or MEMORY?
IYES. START AGAIN
INO. NEXT CYCLE
/HERE WHEN NO ERROR
ISCOPING?
/YES
INO.

/SW-2
IPRINTING?
INO.
/YES

PAGE

EMTI

ITEXT PRINTER
I

00324
00325
00326
0032 7
00330
00331
0033?
00333
~0334

00335
00336
00337
00340
00341
00342
00343
00344
00345
00'3-46
00347
00350
00351
00352
00353

000000
040010
220010
040550
100354
100366
100354
100366
100354
500571
040551
220010
744010
742010
040550

PRINT.

DAC
PRINGO
DAC
CHAR
TESP
CHAR
TESP
CHAR
AND
DAC
LAC.
RCL;
OAC
RAL
AND
XOR
TESp
CHAR
TESP
CHAR
TESP
JMP

74~010

500567
240551
1003-6'6
100354
100366
100354
100366
600326
I

.EJECT

AXP
LAC·
#ASTEM

AXP

IADDRESS OF TEXT STRING
IF"IRST PAIR-WORD
/POSITION FIRST CHARACTER

...

I . •• SECOND •.•
I . •• PUT

<170
#AST3
AXP
RTL

THE THIRD TOGETHER ...

ISECOND PAIR-WORD
/ADJUST

ASTEM
13RD CHAR LOW-ORDER BITS

(7
AST3

IASSEMBLE THE PARTS

I • •• FOURTH •.•
I •• • AND

PRINGO

FIFTH

PAGE

EMTI

EMTJ

ITEXT PRINTER SUBROUTINES
/
11.

00354
00355
00356
00357
00360
00361
00362
00363
00364
00365

0000~0

200550
744010
742010
74?010
742010
~40550

740010
500572
620354

POSITIO~

I
CHAR. 0
LAC
RCL
RTL;
DAC
RAL
AND
JMP ...
I

CHARACTER

ASTEM
RTL;

RTL

ASTEM
(177
CHAR.

INEXT CHAR. NOW LEFT-JUSTIFIED
ILAST BIT IN PLACE
I!SOLATE 7 BITS

12. TEST AND PRINT CHARACTER

00366
00367
00370
00371
00372
00373
00374
00375
00376
00377
00400
00401
004"0'2
00403

000000
741200
620366
540572
620324
240573
540574
600402
100404
540575
140561
620366
10041.5
620366

I
TESP. 0
SNA
JMP ...
SAO
JMP'"
XOR
SAD
JMP
TyPE
SAD
DlM
JMP'"
TETAB TAB
JMp ...
I

10 CHARACTER? (ASCII FILLER)

TESP.
(177
PRINT.
(200
(211
TETAB
(212
TABeT
TESP.

IYES. IGNORE IT.
ITERMINATOR?
IYES. GO AWAY
INO. FINISH THE ASCII-CODE
ITAB?
IYES.
INa.
ILF?
IYES. CLEAR TAB

TESP.

13. TYPE A CHARACTER

00404
00405
00400
00407
00410
00411
00412
00413
~0414

000000
700002
700406
700401
600407
700402
70~042

440561
62lfl404

I
TYPE. e!
IOF
TLS
TSF
JMP
TCF
ION
15 2

JMP ...
I
.EJECT

IAVOID INTERRUPT
.-1

TABCT
TYPE.

PAGE

E,..TI

EMTI
14. TABULATOR
I

0041~

00416
00417
00420
00421
00422
00423
00424
00425
00426
00427

000000
200561
340576
740100
600417
040011
200577
100404
440011
600424
620415

TAB.

{i'j

LAC
TAD
SMA
JMP
OAC
LAC
TYPE
IS2
JMP
JMP ..

#TABC T

(240

ICOUNT OF SPACES
IREDUCE MODULO 10
INEGATIVE YET?
INO.
IYES. STORE SPACE COUNT
I(SPACE)

AXT

IOONE?

(-12
.-2

AXT

. -2

INa •

TAB.

IYES

15. CARRIAGE RETURN LINE FEED
I

00430
00431
00432
00433
00434
00'435
00436

140561
620430

CRLF. 0
LAC
TyPE
LAC
TyPE
OlM
JMP ..

100324
100354
100366
100404
100415
100430

PRINT=JMS PRINT.
CHAR=JMS CHAR.
TESP=JMS TESP.
TyPE=J~S TyPE.
TAB=JMS TAB.
CRLF=JMS CRLF.

000000
200600
100404
200575
t0~40,4

.EJECT

(215
(212

TABCT
CRLF'.

PAGE

EMTl

EMTI
10CTAL PRINT SLiBROUTINE
/

IENTRY TO PRINT LEADING

~EROS

00437
00440
00441
00442
00443

000000

PROCT.
DAC
LAC
JMS
JMP·

Pl405~7

200466
100451
620437

0
#OCTEM
OPS+3
OPl
PRoCT.

INOP

IENTRY TO REPLACE LEADING

~EROS

WITH SPACES

00444
00445
0044f1
00447
0045""

000000
040557
200601
10""451
620444

PROCS.
DAC
LAC
JMS
JMP.

0
OCTEM
(SiJA
OP1
PROCS.

IPRINTER
I

00451
00452
00453
00454
00455
00456
00457
00460
00461
00462
00463
00464
00465
00466
00467
00470
00471

000000
040463
777772
040556
200557
744010
742010
040557
740010
500567
740040
600472
440556
740000
200577
100404
600455

OP1

0
DAC
LAW
DAC
LAC
RCL;

OPGO

DAC
RAL
AND
XX
JMP

OPS

JS~

NOP
LAC
TYPE
JMP

OPS
-6
'oCCT
OCTEH
RTL

ISET SWITCH
IDIGIT COUNTER

'OCTEM
(7
IS~A

OR NOP

OPT
OCCT

ILEADING

(240

ITYPE A SPACE

~ERO.

cOUNT DIGITS

OPGO

0047 2
00473
00474
00475
00476
00477
00500

XOR
TYPE
LAC
DAC

240602
100404
200466
040463
440556
6004'55
6204'51

OPT

100444
100437

PROCS=JMS PROCS.
PROCT=JMS PROCT.

IS~

JMP
JMP.
I

.EJECT

(260

IASCI I MAKER

OPS+3
OpS
OCCT
OPGO
OP1

IREPLACE

S~A

WITH NOP

PAGE

EMTI

EMTI
IHESSAGES
I

Vl0501
00502
00503
00504
00505
00506
00507
00?10
00511
Vl0512

064 2 1=)1
647650
202131
6476?2
436204
046612
466372
254432
053760
00012'012'

t-JOMEM .ASCII

liHl5 1 3
00514
00515
00516
00517

SKIM

0V1520

516271
150100
432031
146212
420321
277412'0

005 21
00522
00523
00524
00525
00526
00527
00530
00531
00532
00533
00534
00535
00536
00537
00540
00541
00542
00543
00544
"'0545
00?46

06 42 50
554250
426350
442610
202330
546636
512624
044646
551012
442646
521341
505024
462370
340650
446371
604606
476352
442634
522461
505024
774000
000000

HEADER

00?47

000603
00001110
00563
00564
0056?
00':566
00?67
00570
00':571
00572
001=)73
00574

<15><1?>'NOT ENOUGH MEMORY'<15><12><177>

. ASC I I

'SKIP FAILED'<15><12><177>

. ASC I I

.SIrE

.ENo
040560
7003"'1
60"'026
6000?3
000007
010000
rt!00170
000177
000200
000211

*L
*L
*L
*L
*L
*L
oL
*L
*L
*L

<15><12>'EXTENDED MEMORY 1St T(ST.'<15><12><12>

'LOCATrON'<11>'CONTENTS'<15><12><12><177>

PAGE

EMTI

~~575

~0~212

N~r;76

777766

00'577

~00240

*L
*L

~060~

~0"215

00601
""602

74"2~0
00~26~

SIrE=00603

*L
oL
oL
NO ERROR LINES

PAGE
ASTEM
AST3
AXP
AXT
AX3
RANKS
CHAR
CHAR.
CLOF
CLON
CLSF
CRLF
CRLF.
EEM
FNOM
F1
HEAD
HEADER
HSIG
IBGJN
TNIT
TNIT2
KHAN
KRB
KSF
KSYC
LEM
LIMIT
NOMAD
NOMEM
DceT
DCTEM
OPGO
OPS
OPT
OP1
PCF
PRINCO
PRINT
PRINT.
PROCS
PROCS.
PROCT
PROCT.

PSA
PSR
PSF
RCF
RRR
RSA
RSA
RSF
SAC

SKAD
SKIF

EMTI
00550
00551
~~010

0"'011
0"'012
O0552
100354
00354
700004
700044
70"'001
100430
0043O
707702
00217
00272
00322
O0521
00553
00200
00221
00234
00023
700312
700301
00r;54
707704
00555
00321
00501
00556
00557
00455
00463
00472
00451
7002O2
00326
100324
00324
100444
00444
100437
00437
701{lJ204
700244
700201
700102
700112
700104
700144
700HH
00560
00323
00312

EMTI

PAGE

SKIM
SPEX
SPIN
TAR
TARCT
TAR.
TCF"
TELL
TESP
TESP.
TEST
TETAS
TEY
TLS
TNG
TOK
TSF"
TYPE
TYPE.
XPO
YAP
.EOT

EMTI
00513
00030
00026
100415
00561
00415
700402
00261
100366
00366
00236
00402
00243
700406
00267
00306
700401
10Lil404
00404
00301
00562
00000

EMTI

PAGE
.EOT
AXP
AXT
AX3
KHAN
SPIN
SPEX
IBGIN
[NOM
INIT
TNIT2
TEST

TEY
TELL
TNG
E1
XPO
TOK
SKIF
NOMAD
HEAD
SKAD
PRINT.
PRINGO
CHAR.
TESP.
TETAB
TYPE.
TAB.
CRLF.
PROCT.
PROCS.
OP1
OpeD
OPS
OPT
NOMEM
SKIM
HEADER
ASTEM
AST3
BANKS
HSIG
KSIG
LIMIT
OCCT
OCTEM
SAC
TARCT
YAP
PRINT
CHAR
TESP
TYPE
TAR

EMTI
00000
00010
00011
00012
00023
000t>6

00030
00200
00217
00221
00234
00236
00243
00261
00267
00272
00301
00306
00312
00321
IUJ322
00323
00324
00326
00354
00366
00402
00404
00415
00430
00437
00444
00451
004C;5
00463
00472
00501
00513
00521
00550
00551
00552
00553
00554
00555
00C;C;6
00557
00560
vH'I';61
00';62
100324
100354
1003fl6
100404
100415

EMTI

PAGE
CRLF
PROCT
PROCS
CL5F
r:LOF
CLON
RSF"
RCF"
R5A
RRR
RSR
PSF
PCF"
PSA
PSA
KSF
KR8

TSF"
TeF
TLS
EEM
LEM

EMTJ
100430
100437
1~0444

700001
700004
700044
700101
700102
700104
700112
700144
700201
700202
700204
70eJ244
700301
700312
700401
700402
70eJ4eJ6
707702
707704

EMTl