Digital PDFs

AC-E953B-MC

September 1978

16 pages

Original

1.7MB

Document:	CXDMCB0-DMC-11
Order Number:	AC-E953B-MC
Revision:	0
Pages:	16
Original Filename:	http://bitsavers.org/pdf/dec/pdp11/xxdp/x11_listings/AC-E953B-MC_CXDMCB0-DMC-11_Sep78.pdf

OCR Text

DMCB DEC/Xll SYSTEM EXERCISER MODULE
XDMCBO.Pll
l2-0CT-78 12:02

MACYll 30A(1052)

12-0CT-78

16:29

PAGE 2

SF.Q 0001

IDEITIFICATION
AC-E953B-MC
PRODUCT CODE:
CXDMCBO
DMC-1t MODULE
PRODUCT NAME:
SEPTEMBER 1978
PRODUCT DATE:
DEC/XII SUPPORT GROUP
MAIITUNER:
THE INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE
WITHOUT MOT ICE AND SHOULD NOT BE CONSTRUED AS A COMMITMENT
BY DIGITAL EQUIPMEIT
CORPORATION.
DIGITAL
EQUIPMENT
CORPORATION ASSUMES NO RESPONSIBILITY FOR ANY ERRORS THAT
MAY APPEAR IN THIS MANOAL.
THE SOFTWARE DESCRIBED IN THIS DOCUMENT IS FURNISHED TO THE
PORCHASER OIiDER A LICENSE FOR USE DNA SINGLE COMPUTER
SYSTEM AND CAR BE COPIED (WITH INCLUSION OF DIGITALS
COPYRIGHT ROTICE) ONLY FOR USE IN SUCH SYSTEM, EXCEPT AS MAY
OTHERWISE 8E PROVIDED IN WRITING BY DIGITAL.
DIGITAL EQUIPMENT CORPORATION ASSUMES NO RESPONSIBILITY FOR
THE USE OR RELIABILITY OF ITS SOFTWARE ON EQUIPMENT THAT IS
1I0T SUPPLIED BY DIGITAL.
COPYRIGHT (C) 1976,1978 DIGITAL EQUIPMENT CORPORATION

DNCB DEC/XII SYSTEM EXERCISER MODULE
MACYll 30A(1052) 12-0CT-78 16:29
XDNCBO.PII
12-0CT-78 12:02
1.
ABSTRACT
DMC IS AN IOMOD THAT EXERCISES UP TO AMD INCLUDING TWO
CONSECUTIVELY ADDRESSED AND CONSECUTIVELY VECTORED DNCll
SYNCHRONOUS IITERFACES. IT USES MAINTENANCE MODE OR A TURN
AROUND CO.NECTOR TO TRAISMIT AND RECEIVE A SET DATA
PATTERI. THE RECEIVER AND TRANSMITTER ISR ARE ALWAYS AT
PRIORITY FIYE (BRI BR2). DATA CHECKING IS PERFORMED AT
LEVEL 0 AID DONE 0 6TSIDE THE ISRS.
2.
REQUIREMENTS
HARDWARE:
AT LEAST 1 DMCll-AR WITH A
DMClI-DA OR DNCll-FA
OR
AT. LEAST 1 DMCI1-AL WITH A
DMCll-MA OR A DNC11-MD
STORAGE:: OMC REQUIRES:
1. DECIMAL WORDS: 1578
2. OCTAL WORDS: 03052
3. OCTAL BYTES: 6124
3.

4.
5.

PAGE 3

PASS DEFI.ITIOR
ONE PASS OF THE DMC MODULE CONSISTS OF TRANSMITTING AND
RECEIVING 7 BUFFERS OF 100 CHARACTERS 200 TIMES FOR EACH SELECTED
DEVICE.
EXECUTION TIME
RUNNIRG ILOIE ON AI 11/45 ORE PASS TAKES APPROXIMATELY
ORE MIIIUTE.
COBFIGURATION PARAMETERS.
DEFAULT PARAMETERS:
ADDR: 1
VECTOR: 1
BRl: 5
BR2: 5
DVID1: 1
SRl:O
DMC WILt RUN UP TO fWD CONSEfuTIVELY lDDRESSED A'D
CONSECUTIVELY VECTORED DNCII'S. IF SRI IS ZERO THEN
LIIE UIIT LOOP (MAIIT MODE) IS USED AND UP TO 16
DMCIIS (8 OMC MODULES) MAY BE RUN AT A TIME. IF SR1
BITO
1 THEI LIRE URIT LOOP IS NOT USED AND A TURNAROUND CO.MECTOR MUST BE INSTALLED,. THIS ENABLES THE
DMC TO RUB AT SPEED. IF YOU ARE RUnNIMC THE DMCI1S AT
SPEED NO MORE TBIN A TOTAL SPEED OF 2 MEGABAUD AT
FULL 6UPLEX WILL RUN DECiX AT A TIME. THAT IS TO SAY IF
YOU ADD THE SPEEDS OF AL DMCllS THAT ARE RUNBING
THE TOTAL MUST lOT EXCEED 2 MEGIBAUD. EXAMPLES:
AT THE BAUD OF ONE MEG A MAXIMUM OF TWO DMC11S
CAR BE RUN AT A TIME.
AT THE BAUD OF SOOK I MAXIMUM OF FOUR
DMCIIS CAN BE RUN AT A TIME.

SEQ 0002

DNCB DEC/XII SYSTEM EXERCISER MODULE
XDMCBO.PII
12-0CT-78 12:02

MACIl1 301(1052)

12-0CT-78

16:29

PAGE 4
SEQ 0003

OR ANY COMBIIATIN SUCH IS 1 ONC1l AT A MEG
AND 2 DMCllS AT 500l BAUD CAN BE HUN AT A TIME,
ANY COMBINATIOI AS LOMG AS THE TOTAL BAUD DOES
NOT EXCEED 2 MEG.
DEVICE/OPTION SETUP
IF SRl
0 (LIME UNIT LOOP MODE) THEN THERE IS NO
SPECIAL SET UP NECESSARY.
IF SRI BITO = 1 (RUNNING THE DMC AT SPEED) THEN
A TURB-AROUID CON RECTOR MUST BE INSTALLED.
NOTE:
SRl CAN BE SET UP AT COBFIGURATION TIME OR
AT RUN TIME WITH A MOD COMMAND.

MACYl1 30A(1052) 12-0CT-78 16:29
DMCB DECIXII SYSTEM EXERCISER MODULE
XDNCBO.PI!
!2-0CT-18 12:02
1.
MODULE OPERATION
1. LOAD SOFTWARE POINTERS IN LINK TABLE.
2. LOAD VECTORS AND PRIORITIES IN TABLE
3. ENABLE SELECTED DEVICES.
4. SCAN FOR ALL DEVICES TO FINISH
5. IF NOT DONE GO TO 4.
IF HUNG REPORT SO AND DROP HUNG DEVICE.
6. CHECK DATA FOR ALL DEVICES SELECTED.
7. DECREMENT ITERATION COUNT
8. IF NOT
0 GO TO 1
9. SIGNAL ENDPASS.
IISR:
INPUT INTERRUPT SERVICE ROUTINE.
II. GET INTERRUPTING DMCSCR.
12. IF BASE I WAS REQUESTED LOAD BASE ADDRESS.
13. IF RECEIVE BIICC WAS RE6uESTED 6 LOID REC BAICC.
14. IF XMIT BAICC WAS REQUESTED, L AD XMIT BA/CC.
15. RTI
OISR:
OUTPUT INTERRUPT SERVICE ROUTINE.
01. GET INTERRUPTING DMCSCR
02. IF ERROR REPORT IT AND EXIT.
03. IF XMIT fiOHE OR REC DONE, SET APPROPRIATE BITS IN
THE ENDPASS FLAG FOR THE DEVICE.
04. RTI

PAGE 5

SEQ 0004

DMCB DEC/XII SYSTEM EXERCISER MODULE
XDMCBO.P11
12-0CT-78 12:02
9.

MACY11 301(1052)

12-0CT-78

16:29

PAGE 6
SEQ 0005

NON-STANDARD PRINTOUTS
IF THE MODULE "HANGS" IN WHICH NOT ALL SELECTED DEVICES
HIVE FINISHED L THEN A "HUNG" MESSAGE IS PRINTED OUT.
CHECK THE EHDYASS FLAGS FOR EACH SELECTED DEVICE IN
THE LINK TABLE TO DETERMINE WHICH DEVICE FAILED TO
FINISH AND ROW FAR IT GOT.
FOR EXAMPLE:
THE TWO ENDPASS FLAGS ARE LOCATED IN THE LINK TABLE
(IRTLNK) AT THE FOLLOWING LOCATIONS.
XX11:
XX21:
ONLY BITS o THRU 4 ARE USED AND ARE DEFINED AS FOLLOWS:
BITO ;: 1
THE BAS& ADDRESS WAS LOADED.
BIT! = 1
7 RECEIVE BA/CC·S WERE LOADED.
BIT2 = 1
7 TRANSMIT BA/CC'S WERE LOADED.
BIT3 = 1
7 TRANSMIT DONE'S WERE RECEIVED.
BIT4 ;: 1
7 RECEIVE DONE'S WERE RECEIVED.
A CORRECT END PASS FLAG;: 37 WHEN THE ERDPASS FLAGS
;: 37 FOR THE SELECTED DEVICE~f THE DATA IS CHECKED. IF
A "HUNG" MESSAGE IS TYPED IT S BECAUSE ONE OR BOTH
DEVICES DID ROT FINISH. TO FIND WHICH ONE, CHECK THE
END PASS FLAGS ANY THAT ARE NOT EQUAL TO 37 ARE THE
HUNG DEVICES. tHECK WHICH BITS OF THE ENDPASS FLAG ARE
CLEAR TO SEE WHAT IT WAS TRYING TO DO.
SOFT ERROR
IF THE DMC·S PROTOCOL CHECKERS DETECT AN ERROR IN THE TRANSMISSION
OF A MESSAGE L IT WILL RETRANSMIT THE ENTIRE MESSAGE L UPDATING
AN ERROR COUNTER IN IT'S RAM. IF THIS COUNTER EXCE~DS 7 ON ANY
GIVEN MESSAGE, IT WILL DECLARE A HARD ERROR. HOWEVER, IF FEWER
THAN 7 OCCUR IT WILL TAKE NO NOTICE OF THE CONDITION. FOR DEC/
XU PURPOSES~ HOWEVER L THE DMC MODULE WILL CHECK THE ERROR COUNTER
AFTER EACH M~SSAGE' Iy IT HAS BEEN INCREMENTED AT ALL I.E. IF
AT LEAST ONE RE-TRiNSMISSION WAS MADE, DMC WILL DECLA~E A 56FT
ERROR.
THE SOFT ERROR MESSAGE MAY INDICATE AN INTERMITTANT DEVICE FAILURE OR OTHER HARDWARE PROBLEM; HOWEVER~ IF THE MESSAGE
OCCURS IN A HEAVILY LOADED SYSTEM IT MAY BE THAT THE PROBLEM
IS DUE TO BUS LATENCY (THE DMC-ll'DOES NOT RECOGNISE I DISTINCT
"DATA LATE" ERROR--IT CONSIDERS THE CONDITION MERELY ANOTHER
TRANSMISSION PROBLEM). ESPECIALLY IF THERE ARE OTHER FAST DIRECT
MEMORY ACCESS DEVICES SELECTED IT COULD BE THAT THE DMC-l1'S
NPR·S ARE NOT BEIKG HONORED QUiCKLY ENOUGH TO PREVENT BIT-DROPPING.
TO VERIFY WHETHER THIS IS THE CONDITION RUN A SINGLE
DNC MODULE L WITa A SINGLE DMC-11 DEVICE SELECTE6. THE SOFT ERROR
MESSAGE SHuULD NOT OCCUR UNDER THESE CONDITIONS. IF
IT DOES OCCUR, THE PROBLEM IS PROBABLY IN DMC-11 HARDWARE OR A
CABLE FAULT.

DMCB DEC/XII SYSTEM EXERCISER MODULE
XDMCBO.P11
12-0CT-78 12:02

MACYll 30A(1052}

12-0CT-78

16:29

PAGE 7
SEQ 0006

DMes DEC/XII SYSTEM EXERCISER MODULE
XDMCSO.Ptt
l2-0CT-78 12:02

041103

HACYll 301(1052)

DLYI:
DLY2:

0
0

FLAGB:

m
26B

FIRST:
MASK:

21~

PAl

SARO:

TERM

217

0
0

~€8Hm 138

VA'

EA:

SARI,

000000

PAGE 8

12-0CT-78

16:29

PAGE 9
SFQ 0008

SELECT: 0

16: 29

SEQ 0007

;VARIABLES FOR DHCII

264

2'16

12-0CT-78

040

DMCB DEC/Xll SYSTEM EXERCISER MODULE
12-0CT-18 12:02
XDMCBO.Pll

260
~6\

MleYll 30A(1052)

0
0

DNCB DEC/XII SYSTEM EXERCISER MODULE
XDMCBO.P11
12-0CT-78 12:02

m
~B5

293

296

0088~i6: 001~674

008~ig· 8~t602

177500

802 36" g2f7~0
080 ~~: 8it~oa
000~50"
01763

177712
DROP:

000 410' 012767 003170' OO~634
18~ 8Rg4\~: gl~7~g! g08~~18: °88~g~~

m
°88l~~:8~~m
~l~ ~88t~3: 08~irl
309

m
3178

31
319
320

~~t

3
3

3~5

328
329

88d7i:

0 520" 11 76

888516: ilg58g~
080~
l" 08~063
0 05 2" g 5767
008546" 0101l
80
8gm~
088560" 005063

m88ggii~: UHl
333

0005~4"

00600"

0 3230' 02620
003230' 002614

00506~

16701

00g010
00
00 44
177266

m
337

g8o~og:
0086h"

5$ :

000012
177202

SETOP2:

340

g0576

177404

J$:

34
344
345

888MF oiWI
00063 "00 1
g00640" 100415
00642" 01006~

177404

353
354
355
356
357
358
359
360
361

000656" 104407

040000

g8g~12: 8ij 2 l1!

004000

888ii~: 8°3hi} ~m8~

0007 0" g l00
0007 2" 0 2711
00° 36 " ooo~r

4$ :

000002
1771 06

5$ :

000143

m 88g ~~: 8867 1 000144

~I~~C¥6;~8~gIN

k~g8u~~~8~TQOUT
REGQ~REGQO

0
4S
SETUP2
i10 R1

10~R2
34,R3

R~ (R2)

BiH,2(R2l
RI 10(RJ

R3~4lR21

UI4~RI~~)
20lR~
H~~3

;ACTlVE?
;BR IF ACTIVE
;BR IF DONE
;UPDATE CSR
;UPDATE VECTOR

ig~2*I~u~INK

}LOAD
;LOAD
;LOAD
;LOAD

VECTOR
INTORRUPT LEVEL
CSR TO LINKAGE
LINKAGE ADDRESS IN VECTOR
Wigsh~hRUPT LEVEL
;CLEAR INPUT OFFSET LOCATION

mp~IS~OmGLOCATlON

TST

FIRST

;BEGINNING OF A PASS?

ClR
CLR
CLR

26 R3
30 R3
32 R3

TO SAVE
;BASE TABLE ERROR
;COUNTS FOR COMPARISION
;

~~V

jgDR,RI

~~~R3t

H(R3)

12-0CI-78

HOV
ASR
BCS
BEQ
ADD
DR
TST
DNE
~OV

TST

SELECT,RO
RO

~~AN

W,Rl
F RST

l~IT14'(R1)
Rll

m
mAX 'B~~f~ARI

RLsARO

~7140~
008 0 "
000 00"

0~07U

MOV
NOVB
HOV
MOV
mB
CLR

jl!~.~~~¥IR

IIEI

1~~Elk ~~IA

mF~~~8 OF ENDPASS FLAG
l~~~6~~~~E CSR

16:29

PA GE 11
Sh~

IS:
2S:

34B
349
350

TO INTERRUPT lINKAGE
;SET RND PASS FLAG FOR DEV ICE #1
ff,DAEtSBuEhDi FOR DEVICE 12

HOV
ASR
BCS
SEQ
ADD
ADD

j~~~A~FB~~~~~RS?
m=Itr~VE BITS

1'~'~~~Ri3
FLAGB,xhl

MACYll 30A (1052)

000010

m g8m~: mu
888m: sum mm
m 888m:
888m: bHu 888m

IF~t~¥~~~ikQIN

~~~

01454

~~i

~81

f" 8sm~
m 8800062~"
06
gg 6;

~~M~C;M~ m~GnAgMC'S SELECTED
;GET SET TO CLEAR BUFFERS

;DROP MODULE IF NO DEVICES ARE SFLECTEO
IF,=DEVICE CSR

~RD

4$:

888m
000030
000032

171420

7 88

2$:

888m
000012
177466

m
103~04

;700 WORDS fRON MF.M/ITERATIDN
;DROP MODULE IF DEVICF.S OTHER
;THAN FIRST 4 ARE SELECTED
;SELECT-ACTIVE DEVICES
;DROP MODULE IF NO ACTIVE DEVICES

BEQ
MOV

~81

00004
8 00006

DMCD DEC/XII SYSTEM EXERCISER MODULE
12-0CI-78 12:02
xDMcaO.Pll
334

l~0~N~m~pwm~t~~2~TION

700 WOFR
'C<h,DVIDl
ROP
HH¥kfSELECT

f~g~E1'RO

~gl

3$:

888m
000034

Ym6~ 177312 000002

~0858j: 0010~6~
8 851" 061~ 6

~ h6!~fi~o

SbCT,RO
DROP
ADDR RI

=81
~OV

301

PAGE 10

g~~

005124"
177660

002414

008112" 0 ~ 6
880i:g: 8At280
R8g450" lR~410

MOV
HOV
MOV
RIT
BNE
HOV
BNE

RESTRT: mS,BEGHRST
MOV
,RBUF11,RO
LOOP:
1$:

~Ii
ililil~ li~~~l 1~~Jil'
~8~ 88gJZ~: gl~~~i ~61~~3· R84~~5

306

Ib:29

SEQ 0009

START:

~d 888
88813~~:
mm:
m
~~: m020
~§~

12-0CT-7B

BEGIN THE TESTS FOR THE DMCll

mmnr Un~8~

~I'

MACYll 30A(1052)

8S:

DREAKLBEGIN
MOV
SARO,RO
HOY
SAR1,R1
BR
4i
BIS
0062~Rl)
BIT
BIT , RI
BNE
~
BIS
; 000,(R1)
8R
BIC
, OOO,(Rll
rST
IRST

BNE

BIS
BR
BIS
BR

~f43'(Rl)
~144'(R1)

aO-ACTIVE BITS
ACT IV E?
BR IF YES
BR IF DONE
UPDATE CSR
CONTINUE
FIRST PASS?
MASTER CLEAR f'IRST TIME ONLY
MASTER CLEAR
RUN SET?
DR IF YES
SAVE NO
SAVE RI
~ONITOR ••••
m&O~~~hmu~¥ TO
NEXT INSTRUCTION.
RESTORE RO
RESTORE R1
WAIT FOR RUN
SET lEO
IS SRI ZERO?
DR If NO (TURNAROUND CONNECTOR)
OTHERWISE SET LU LOOP
CONTINUE
IF SRI BITO IS SET,CLEAR LU LCOP
FIRST TIME HERE?
BR IF NO

@~~T~gu~aU&~TIRlllgl,BASEI
~a~Tl2u~02~~TI5~II~~C RA/CC

0010 ...

DMC8 DEC/Ill SYSYEM EXERCISER NODULE
IDMeBO.Plt
l2-0CT-18 12:02

MACYll 30A(1052)

12-0CT-18

16:29

PAGE 12

OMC8 DEC/XII SYSTEM EXERCISER MODULE
XDMCBO.Pll
12-DCT-7B 12:02
000013

MACY11 30A(1052)

12-0CT-18

16:29

PAGE 13

nmr

001576' 13S:

14$:

000013

snm,
001612'
116566

15S:

UI88t mm
000000' 001626'

mm:

16$:

mm
000024
11$:
000010
176664

18$:

SEQ 0011

S~:Q

0012

MACYII 301(1052)

DMca DEC/Xlt SYSTEM EXERCISER MODULE
XDMCBO.Pll
12-DCT-18 12:02

DEV:

OROPl:

l2-0CT-7B

16129

PAGE 14

S~:Q

0013

Pl
XOROP2

-1

SOFT:

SOFTI

-1

ESAVr
SAY :

;EXTENDED ERROR rRINTOUT LOCATIUNS

FoUSLE: DLY~
OLV

ITADLE OF AODRESSES FOR

~SAV :

ESAV :

EXT~NOEO

ERROR PRINTOUT

mv~
Esn

-1

030461

FUBLE: ESAVI
ESAV2
ESAV3
ESAV4
-1
XOROPI : .A5CIZ

/lOHCIl DEVICE # /

XOROP2: .ASCIZ

/ IS HUNG AND HAS BEEN DROPPED/

SOFTt:

/%50.T ERROR -

041gAA

mlU
042105

.ASCIZ

OOC~P

ERROR COUNTERS ARE NON ZEFO%I

041504

DMCB DEC/XII SYSTEM EXERCISER MODULE
XOMCBO.P11
12-0CT-78 12:02

HACVl1 30A(1052)

m 881m: g~om
mm 8~Wf~
02~1
m ggt1~~: 05~116
8~A1n m~~~ g~7M
534

001154"

537
538

001776" 000045

05q05

3
.EVEN

12-0CT-7S

16:29

PAGE 15

SFr: 0014 /

DMCB DEC/XII SYSTEM EXERCISER MODULE
XDMCBO.Pll

12-0CT-78 12:02

MACYll 30A(1052)

12-0CI-78

16:29

PAGE 16
SEQ 0015

IISR:

888m
000000'

OOa!~r 175712

~R5 04
175 00

DMCB DEC/XII SYSTEM EXERCISER MODULE
XDMCSO.Pll

m
m
m

m
m
607
608

n~
61~

613
614
615
616
617

m
620

12-0CT-78 12:02

175664
008 044
880m

XMIT:

008004
00 006

MACYll 30A(1052)

12-0CT-78

16:29

PAGE 17
SEQ 0016

;LOAD X~lT COUNT
;CLEAR ~QI
;COUNT HOli MANT XMIT BA/CC HAVE BEEN LOADED
;00 WE HAVE ALL 71
;SR IF YES
; ASK FOR XMIT RA/CC
'EXIT TO MONITOR. MODULE WA[T FOR INTERRUPT.
;SET BIT IN END PASS FLAG TO
;SHOW TH TALL 7 XMIT BAlce WERE LOADED
;CLEAR OFFSET

000006
000014

08 0040

80888~' 000006

000014

;CLEAR IE!
;HIT TO MONlTOR. MODULE WAIT FOP INTERRUPT.

000000'

CLEAR RQI
[S RDI GONE?
BR If NO

000040

RETURN

f~mr 000244"
175570

115556

£lBITS:
BITS

4+~Gg im~CAL ADDRESS fROM 16-8[1 VA

NOW 14+13
NOW 15+14
CLEAR ALL BUT 14 & 15

RETURN

OMCS DEC/XII SYSTEM EXERCISER MODULE
XOMCSO.PI1
12-DCT-78 12:02

88Hg~" 888m

6~S

000000" 002534"

00~~54

6~4

M
621

003210" 000530

g30

mm"

m
m

000001

6~~

F5276

64~
64

175264

000002

000000" 000000

648

888m· ~~~~~~

649

000010

ii~
656

g~3

3$:

INTEPI\UPT.

4$:

000002

175324

000002

000100

000002

000000"

661

~~1

664
665
666

000020

5$:

R6a

XIT TO MONITOR" MODULE WAlT FOR INTERRUPT.
,CLEAR
,HI syn IS REC DONE COfJNT

)00 WE IlAVE 7 NEC DONES YET?

;SH IF NO
;SET B lT4 IN ENDPASS FLAG TO
) SHOW THAT WE GOT ALL 1 REC DONES

000002

661
668

175252

000002

000100

000002

610

000000"

669

DMCB DEC/XlI SYSTEM EXERCISER MODULE
12-0CT-18 12:02
XDMCSO. PH

) ALL

DO~E?

,BN If NO
)CLEAR DIE IF YES

1S:

)EXIT TO MONITOR. MODULE

MACYU 30A(1052)

12-0CT-7B

16:29

P.~CE

~AIT

88j~~~: 00l56~
00

634

a • gooooo

003

80008
0" ° 000

000000
0000
08
0 327O'
005124"

INTLNK:
116176
1 7466

81r
m
680
a! •
681
8: 888888
g 8l
ooio~r 000000

m
m 88jOl~:
m 8 ogg~oo
m 8818~r 8888~r
o

CSRl:
XX11:

XX12:
XX13:

883m

00
4"
003 46" 0

8~6:
m OO~Ogr
gg

06'

g80g
800080
88386 : ogggg8

JSR
JSR
.WORD
.WORD
Roun
BASEl
.WORD
.WORD

~%~6m

.'~ORD

.WORD
.WORD
.WORD

0038~6'

003032" 004561

176742
177432

I~TE~RUPT.

SF~

;----------------------------------------

00 0"
00 006'
0°1
°'
00
00
38 3 3

'ON

JLINK TABLE TO INTERRUPT SERVICE ROUTINES

676
677

100

1$:

0 m 000002 6$:
88008007
000013

660

697
69B
699

SEQ 0017

000012

65~

687
68e

PAGE IS

000002

650
651

in
m

16: 29

oR888t mm

m
m
w
65

12-0CT-18

OISR:

2S:

888m
003210" 000472

!~~

"ACYU 30A(1052)

CSR2:
XX2l:
XX22:
XX23:

JSR
JSR
.WORD
.WORD
RBUF2
BASE2
.WoRO
.WORD
.WORD
.WORD
.1I0RD
.WORD

R5, IISR
R5,OISH

DMC CSR FOR DEVICE 1
END PASS FLAG FOR DEVICE 1
RECEIVE BUFFER POINTER FOR DEVICE 1
BASE ADDRESS FOR DEVICE 1
RECEIVE BUFFER OFFSET FOR DEVICF 1
REC/XMIT COUNTERS
THESE NEXT 8 BYTES ARE FOP
THr; DDCMP ERROR COUNTS
IN T~E BASE TABLE TO BE
SAVED FOR CoMPARISION.
DMC CSR FOR DEVICE 2
END PASS FLAG FOR DEVICE 2
RECEIVE BUFFER POINTER FOR DEVICE 2
BASE ADDRESS FOR DEVICE 2
RECEIVE BUFFER OFFSET FOR DF,VICE 2
REC/XMIT counTERS
THESE NEXT 8 BYTES ARE FOR
THE DDCMP E:RROR COUNTS
IN THE BASE TABLE TO BE:
SAVOO FOR COMPARISION.

0018

.'IIWJIIIe.
DMCB DEC/XII SYSTEM EXERCISER MODULE
XDMCBO.Pll

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DIAGNOSTIC

ENGINEERING

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FOR RELEASE ENG. USE
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KIT NUMBERS
PROBL~M:

THE "DDCMP ERROR COUNTERS ARE NON-ZERO" SOFT ERROR IS MISLEADING
SINCE IT REFERS TO A RECOVERABLE AND SOFTWARE~TRANSPARENT SITUATION.
NEVERTHELESS, IF 4~ SUCH OCCUR , THE MODULE WILL BE DROPpED BY THE
MONITOR.
SOLUTION:

THE SOFT ERROR CALL AND MESSAGE ARE DELETED FROM THE .HODULE BY THIS
PATCH, AND THE HARD ERROR CALL IS EXTENDED FOR CLA.RIFICATION OF THE
SITUATION, IF THE DMC-ll SHOULD BE UNABLE TO RECOVER.

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