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MAINDEC-11-DCKBF-A1-D

March 1972

9 pages

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Document:	Stack Limit Test
Order Number:	MAINDEC-11-DCKBF-A1-D
Revision:	0
Pages:	9
Original Filename:	http://bitsavers.org/pdf/dec/pdp11/xxdp/diag_listings/1140_45/004_DCKBF-A_STACK_LIMIT.pdf

OCR Text

IDENTIfICATION
PRODlJCT

CODEc

PRODUCT NAME.

STACK ~lMI"TEST
STANNDARO ON 11/45
KJ.~l.A OPTION ON 1t/40
15 MAR 1972

MAINTAINERI

DIAGNOSTIC GROUP

AUTHORS,

JOHN ADAMS

COPVRtGHT(c~

DIGJTA~
MAY~JARD.

1972

EQUIPMENT CORPORATION
MASS

1','

ABSTRACT
THIS PROGRAM l~CR£vt~T~Y TtSTS T~E STACK LIMIT fUNCTION
qtCUtREP1EN'S
EQUIPMENT
BASIC 11/4' SYSTE~ ~~

WITH STACK ~l.I' OPTION
STORAGE
THIS PROGRAM USES c rWRu 1750e

11/40

~RtLtHtNARV

PROG~A~S

OlAA THRt) oeMA
3,1

4-.,

LOADING PROCEDURE
LOAO PROGRAM USING liS ~OADER
STARTING PROCEOWR£
LOAO ADORESS 2~0t PRESS START~ THE PROGRA~ WILL LOOP
AND RING SELL ON 'ASS eowp~ETION.

'.1

OPERATING PROCEDURE

"t&

SWITCH SETTINGS

,',2
", a, 1.

~O"E

SU9ROUTI~E

ABSTRACTS

SCOPE
SCOPE IS A MOYE PC,A! A\, STORES

T~E

PC+2 IN Rl.

~I.'f

WI.T IS A HAL'

tNS'A~C~lO~,

ERRORS
ALL [RRORS WILL C4US£ , WA~T
TRAP ANO I~T(RqUPT E~qORS WILL CAUSE A HAL' AT VECTOR.2,
ERROR RECOVERy
PRESS CO~TtNUE TO pq:CEOE TO NEXT 'EST
ERROR 1..0J)PtNG
TO LOOP ON AN (RROR, PLACE A BRANC~ TO T~E PREVIOUS SCOPE
t~STRUCTtON IN PLACE 0' ~HE HA~T I~STRUCTION,
NOTE T~AT Ir T~E £RR~R IS INTERMIT'ANT THA'THE TEST wS~~
DROP THRU TH( ~AL' A~O PROCEED TO 'HE NEXT TEST,
THEREfORE, TO LOOP ,~[ T[ST CONTINUOSLY ~t~LAC£ TH( 8EQ ~+4
I~STRUCTtON tM~EnlAT.Y pqECE[OING 'H£ HALT WtT~ A BRANCH
BACK TO THE ~REVIOUS SC~PEI

TO LOOP ON T~AP rA(~UR[S. PATCH IN THE rOLLOwlNG ROUTINE
AT THE ADDRESS or THE T~AP VECTOR~

TRAPVEC,
TRAPV(C+2&
TRAPVEC+4i
TRAPVEC+61

TFUPVEC+10,

T!UPVEC+4

~12716
,MOVE SCOPE ADORES! TO STACK
ADORESS ,ADDRESS 0' PREVIOUS_SCOPE
P"Z06 ,RtTURN TO T£S' ., SCO'E

RESTORE ALL LoeA'lO~S BErORE PROCEEOING TO NEXT TEST,

Rt!T~leTtON$

'\,ICl"JE
Ml'CEL.l..A\'t~i.<!

1~'" TRAP rRRCOS YlofE STACK POINTER(R,) WILL CO~TAP~._
~O~RESS ~~E;E .~E 'RAP OCCUR£O;

'1"[
EACH PRO~R~M '1([5 ABOUT 1 MINUTE~

8,1

!rXECUTt;P·

9.,

PROGR4 w 'ESC;l 0 '!ONS

THIS IS & ,~S, :r THE STACK LIMIT -tGIST[R A~D l~SURES
~PE~"!:~
THE REO AND Y£LLD~ lO~E B~Ul.JOARtESt
DVrRr~o~ T~'~S 4~E TESTED rOR, ALL VALUES 0' ,~[ ST4C~ LIwE~

CORREC'

~[ClS'E~,

""'IN!)E:C.ll .. ~CKlIF"-A p~f'1l1Z5.'"
•

STI< LIM T(sr

CCI<!lF"A

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.NLI';T
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Me,Ho,Stl)

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,'~" t~AMf'1.1..
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J4~J (\'EI.L0;/ i'1J1~r) ANO .5~0 (11£n ~O~I!:I'. IN ALL CA"i(' THP. ... t;lV~W lONE: POUN"ARY
II'> AT 4"0161 iil.US TH!: V.LUI; I" THr HACI< 1.1'l1T AEGIHER, _tln THE: R(O
'l~'jr BEGINS 2'(ill w'JRDS EJr:I.0W TP£ Vf"LLOW 1:1'1(',
'fli I S "E'H CHECKS THAT THE STACK 1.1 Ii I T I r; 40?! (iRr HER THAN T~£ CONT(NTS
,or THt ST4Cl< LIMIT III;GISfICR (CO"E PfRI.fITTINr.). ANti CHECKS T~E LENGTH

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11'4/11\
\'1\ Lh0

• -1:11 '"
HOV
HOV
Cl.ll
f-40V

I'OV

117""

"'12737
"''''1/137

11311171'1

111'''Il10''''''
"'&11'11"

~;H"72

,h'1"74

';IJIIOT, ~6

17177"

MOVa

"",SWH, .. ,Ij!3'!I;;AK

110V

CI.F!
HI.T
nH

~i!26:!6

tORETI

CHI'

.1~!I"IALlt.r ';UCI( POINTEq
,OISPI.A" P4SS COUNT
II.,OAO PDPl1/45 MICRO 8Rt:AK ReCISTER1

I CNT, .110 I S"LA"
"~",,,

IHIP0"4

.I':jTl'U if' H,4CK POINTL~
• t.rc~ "u r Iti n:nr11JPT5
f'~ '.:; COUNT

1eL.l ~A

elT

OE:IJ

:t"1Cl14
1730("11

r, ''''

r .,? , •• " ~ w

leNT

177'H"

i CHeCK THAT Cf'

"'01"'6
"0U1i4

';1''1'.)
iI I' II

.. sw~

, +1'"

'I.'.)AO '"leRO flRE41( REG IJITH S!!I/:-7

CAN TIME OUT TRAP
IITOHn, "ERRVe!': ILl"" T I "EOUT TRAP V.£CTOq
11"173000
'AODC/t~S 173:'::l3AI.WAYS TIMES OUT ON
JDATIP/DATO nuS CYCI.£
,ERRORI F'~Il.!:O TO TIME OUT TRAP
11(1;111
'I.00P T£ST
(~,+, 16,+

,TeST THiT Tlolf :laCK I.IMIT

,ilF'STOrl£ filE SUCIC

Rrc UTell eA'~ ne IIO'l:RtNC£D

,USING DATI, OATIP/UATO
Till

LHl1016

1410701

ll11ttl'~
I1JU~6

~12767

:HlU22

1'I{451161

1111414

1li11.l12
1l"11i!{4

1"17737
"'''''40J

t7?J66

"i)11~2

"IUt:.!4

II00l'r

t H6H

MOil
CIoR

_ flU I [HRVEr.:
fHIlVF:C+2

,I.0AO "flOOR YECTO,.

1"774

MOV

(IISl.k,U!71774
TDfl

IRrr~RrNCE

IIR
POl'2
HI. T

"226:<'6

"lIlI""""

001126

"""763

~"113r.l

0"l1J6
0211144
001140
0"1l~"
"31152

012767
111777
"""4"'3
022626
1'10"''''''''
0"'''766

001146
177H2

"IilU54
",",U62

012767
1l1li408

""",Hlo

D"
,USING DATI, OATIP/OAToa
176646

Tr.lB I

177342
UlC I

HOV

Hove
SR
POP2

IWT"'C, (HRVEe
'SI.R"~I.H

flliOI

IEPR!'RI CANNOT REF'ERENCE SUCK LIMIT REC',
'1.00P TEST IF' ERROR

,I.0'D FRROR VECTOR
,REfERENCE 000 BYTE

100

iE!!ReR! CAN~OT REfERENCE STACK 1.1 HIT
,USING BYTE INSTRUCTION,

HOV
8M

'R£STOI![ ERROR TRAP VECTOR
iGO TO NEXT n:ST

IoI\,T

1766:12

saCK I.II'IIT RCCISTER
.GO TO NlXT TEU

,TeST THAT tACtot (lIT nr THE: (iUr.I(.I.IMI'f RrGISTE" OIU CAN sr. ~[t
,4tH) CI.UHI.'O, IHI:! nsr flOUT!.!'1 , HIT THIIOUC>l THt SUCI< I.IMET RE.CI'ITrR',

•

11~jqt"

•
•

~1."7I'll

II:dUIl.

"U7A~

IlllIP2

"'10211

11111\170

IIJ17711JI)

"fHal1J~

flU.1Il

'U21&6

l1li14'1
1I1G11 ..

leu'"

!lCO",
I'II"'''U
t17.siu
11731112

1141

110V
110V

HOY

CI1P

BtQ
H\.T

'41110,'401

li2, .51. 1
"SI.H,HIl'
flIil,H2

,."

Il.l'IAn 'I:'IT V~I.Ui
,I.IIAn 'I::;r VAI.U': INTO lTACIe LIM, RU,
,Gff ftrSlJl. T
,CHt;r.K flfSUI. r
,BR.~'C~ IF' RESULT IS COII"E!:T
I EIIR~R! I NCORR£CT "(SUI. T, 112 ~u CORRtCT
,R£S~I.' _NO ~3 I'tAS I NCORII[CT RESUL T

)

» "AI"H:£e.l1 ..

oCK~r"A

POPU/25.4':l STI( LIM TEST

:'~~!:!fA

•
)

•
•
»

•
I

0J12Hl
",",lZ14
'lilt 2~0

(/"'12<'2
"'''12~4

\l~r,"77

·'1'7:'0

UJJ61

0Ul.! !I!
I'lll,! 12
Mat ~ l6

fl1l!5077

"212~6

"Ui-'Il

"1~7~1
~"",,67

'11 '71"0
021401'07
flA1<1"1

"01~5"

I'1I1Hi",~e

IlU2!l6

1"'277

IHIJ10!62
01111266

1il5267
0rUJ65

CI.R

~Sl.'«

"OV

'SLR, R"

OlQ

""14(1'1
:'IlI."0?0
;121631'12

""1(26

I1lA1.;:~::

1??Z?21
171264

, .4

f4I.T

ASL
ace

17/:U6

TlA

T2.

!lCOPE
eLR
CI.R

ilSi,H

T2A I

HOV

iJSl,H .tHl

CMP

110. Tl:MI'

117i!,}2

111242
1?111H

112

nEQ
INCB
INca

17722"

aNt

I ~~COIlRrCT RESUI. T
.'i·nn TEST YAL.UE:
p!"A·'CI.I

n ~JlH (lOtH:

I\.!LLAfi :;T"ct( I.IHIT RECISTEIl
.r..n Rf.SIJI.T
,CHUI( RrSULT

, +4

~SLH

TlMI'+l
T2A

•
•

•
•
•
t

•
•

•

•
•,

""0

I !: Pfl (Ill I

TLHI'

HL. T

1772H

,CLt.:,HI STACK l.IH, REG',
I Ct. T
CH[r.o< RFSUI. T

l\
L/

I lIlIH'" , suet( 1.1101', RCC', >4A'S I NeoRRECT DATA
I TnH' • COllAreT PE:SULT
IINC!!(H£NT VAI.Ul. IN STAet( LI". REG',
II"'CI1E~ENT nST VAI.UE
lilrlM'Cfj IF' ALI. VALUES NOT n:STEO

•

t'.! r. :te.ll .. ,)~Io(Jr.A paf'lll2'''~' ~TI< 101M TrSf
Ct;~lJfA

"21127"

311'l71:1

001<!f2
"013:'10

"UJUl

111:'777
!'Il77""
f"i!)7(lll
"LllHJJ,

"'''tJ12
01'l1Jt4

r'H'.H"

001J~'4

)

T31
117177
17?Zl'l"
111411Hl

1712~4

"W,,01'l
~117~"
~"l.Hl~

031J16
"flU2;!
001J24

0iHl0 II III ,

""~326

1'1:1(176"

SCOPE
MOV

*·!,~SI.R

HOV
eMf>
AllJ
j.ll. T

(lSL.H,H<:I
'117 4 ",1,R0

IP~f.<:Ef S!.R
,SAVF" SL.R
'C~t:r.K THAT SL.R WAS L.OADED

IEPH:"RI SL.R ""11.(0 TO LOAD
I Rr.Sq CLEAR'; SI.R
,GrT RrSUL.1 OF" Il(SE:T "NO CHECK HESUL. T
IGO TO NEXT TE5T IF" RESET CL.'Afl(D SL.R
,ERRt'R I RESE T F"" I LED TO CL.£A~ SLR
,Lt'lO" TeST IF' !:RROR

,+.

11f,,$ E T

IIOV

171162

;1t;O

HI.T
All

ITE:ST THAT THE CI.f:"K INSTRUCTION CLEARS THE STACK !.IMIT qEGI~T£R
1l01J30

"1;171'11

0111332

\lV?7
1111771""

0"13~"
4

""13 "

1'12:'7""

111.""

"'HJ~2

00U7<1

~~1'1611l1
~~'i:l77

17'1U4

[61U361:!

1'117711'0

17'11.:!0

lI!illJ:'0

""131\4

•

•
•
•
•

•

001J66
001370

1Ul~410

"~1"11

",Hh'00
01",'17'57

'111

, +4

"",JI"

,ERRORI SL.It 010 NOT P1U:SI:T

flSL,H

flLQ

8ISl.fI,rHl
T5

HI. T
IJR

,GrT Rr5UL. T or CU4R & BAA'JC~! If CL.EAR
,GI'! TO NEXT T[ST
,[QRC'RI C!.R IN5T f41L.£0 TO CLEAR SLR
,1.001' TEST IF" ERROR

,11410
,TEST TH4 T AN OY!;RF'LrlW (nROR I'lCCUR9 rOil ALI. STACK
,(I'HrlVIOUl COR!; IS 4'Oli.ABI.EI',

rn"70~

U:?7l"2

lIJ"IIJ~L0

'lcapt
;"UV

'10,fljl

1774Ql0

~OV

h"'H~ I flJ

1111422

062702

.lOO

il430, R2

400

M41l1:l,RJ

001426

1'1627"3

,,'""1'1400
' 14' '

0\U432
01U4 J 6

U5klJi'
c#l,67Cl6

0000110
1770 .. "

0'1:1,442

1112767

0"1704
17'!776

001'1~~

&!I162~4

"01454
001460

f'il,62r.,
~1?767

177714
"US""

176334

T'91

17631~

"""466
01"2Z6
09:1,4721 01"317 177h21
"'01474
17'7721 17777"
001502 """4(11
I.IMAI
"U"4 'HlUIB
0166~6

"U16
""18

iPrlE: ~E TODD eyTE
l(in Rf:5UL T
,CH£r.K R£SUL T

*-1,,<SI.H
'SL'l,H~

U2?"3

UU".
eU741

UUI!6

17"~1\6

"J1~10

~~1I066

1n166

11?76~

~;:\''(4
Il~ 1!> ;~6

:.0:3731

,LOA/) NEW STACK VAI,Ue:
,AND N!:W STACK LIM', R[G, VALue
,CLEAR ADDRESS 0
IINITIALUe: T'i£ SUCK POINTER

CI,R
HOV

spoor I sp

MOV
t4 0V

'!.IMX/~RI'IV!:C
-2(2)IH4

MOV

.4(:/), H!j

HOY
MOV

IILIHA,ERPVe:c
R2,S!'
R3,8ISLH

MOV
"10'1
~R

~UJ("')/·t0C6!

,.4

"'L T

'12, ~rJ
'1.1 M~I, tHnVre

MOV
~LT

r'::1"~0

I! "0 iHl 0

(1#0

LIMB.

TST

'-"
,+4

~il14a

StQ

"231/1(,<1

HL. T

0J153~

k'!12'2" 6
0<: '5 il ~,

MOV
CI,R

1'12, SP

MOV

'I1.!/1C,(RRVrc
-50(6),.5"16)

~Z154'

~12U7

0Z1~~2

.. 16666
I'Z::I3:0
I'!Z'5n7
;lU4::'1

°"\:1 6 6
0H!P3
"~1~)72
IilH~76

0HIH'11
"Z16~\6

0;!16t4
0;:1,6.ll!

"l16:!2

MOV
HI,T
L.IMCI

MOV

1'l016?,2

11611~

176614

nUIJ7

177716

176660

1116162
I'C":!6

LIMCCI
LIMOI

"ZU'~

"Ct660

lIueu

0316 6 2

:'Ina"

0e14~1

follia,,12

~l«O7(,,6
;'I1~462

"~1616

ilV,"2
~1U'47
~U7t.7

MOV
HOV
COM
~t.. T

U0
R2/S P
*1.1 MO, ~RRVF.'C
·'2(21/TEMP
.!)l'(

eM'
"£0

HI.T

I"JI!!"~"

"U41ll,
U20Za
"22137

TST

stc
C!.R

,,1110""111
177126
171716

lIi:a0f'i:

l'*3

H~T

:-".267
"C'166

0i!1634
0Z16 4 2

II in 7"2
".3\71114

0330111"

p3,:.'zr6
:'U""?

IIU4('1

1Il~16116

116232
1777Jil

013"""
"C,,,37

IlU6Jt
l'Iil16J2

"~164 4

1'!21"300
(Ji:\562
17773"

ILOAO T IH£ OUT TRAP
,SAVE STACK LOCATIONS
,[lilT TEST IF' EITHER tNST TIMES OUT
,LOAD OV£RF'LOH VECTOR
IL.I'!A!'l C;TACI( POINTER
ILOA!) STACK L.IM, RF.:G',
,Rr.F"~R(NCE LIMIT ADDRESS
,SHOllLO NOT HAVE TRAPPED
I EI'IR'1R I REF"ERENCE: TO L 1M IT AOORESS
I C~U~t;O AN OYERF'LDIoj
,~r"~INT 5T"(':1( POIr.JT[R
I Flrl~": PIT DVI'H'L.OW Vtr,TOR

IRfHFlF.:NCr: fiRST 'Yf:LLOW' ADnflrss
I(FlHnn! SH~lJl.~ HAVE TFHP~E!'l
,WAS IT A 'RCO' OVt.HrL.O~7

0~1~'SC

flZ15 4 Z

L1M IT AEG I ~ TER VALU(S ~

I'INITIAL.I!!: !lTACK VALUE ANO
,STACK LIMIT RE:GISTEA VALUr:

0;'l,!:iJ2

0~1656

MOV
r.MP
f'LO
HL.T
CI.R
MOV

"01412

01116 4 6

~Cr:!PE

1010va

001416

1il~\562

•
•
•
•

IlIH41'"

177146

1)01410

1ilZ156Z

•
•
•
•
•

177777
171141i1

I (PROR! A , REO' OVF.:RF'LOW OCC')RPED WHEN
I A ' VELLa'" ~OORESS WAS QEF"EPENCF:O',
IRrpnpIT STACK "'OINTER
,CLEAR ADDRESS 0
IR~Pr"l'q OVERF"I.OW VECTOR
I R,F'[RrNCE LAS T I YELLOW I AODR(SS
I ERRnR: SHOULO HAVE TRAPPE!)
,WAS IT A 'RED' OVERF'L.OW
,ERRORI A IREDI OV£RF"LOW OCCURRED WHEN
IT~Ie: LAST IYELLOW' AOORBS WAS REF'ERENCED
,CLEAR AnDRESS"
I RJ,:P!'l PIT TI4E STACK PO I NTrR
I RFpn pIT T"'E OY(RF'LOW TRAP
,GrT IFlE!)1 L.OCAT!O~
,RrF'fR~NC( '''EOI AODRESS
,EPR('IR! NO OV!:~F'!.OW TR AP WHEN I R£ 01 ADDRESS
I'OS R(F'f.:RF:N('[O
IW~S INSrllUCTlON AilOR TEO,

T[MP,·:l2(2)
U

I [nRriR I COM .'2 (6' WAS ALLOWED TO CHANGE
I A II~El'Il ;'DORESS',
,RrsToQE If?E(l1 LOCATION IN MIY EVE~T
,W4S STACK POINTER CHf.NGEO TO IIll

CMP
BtD
HI.T

'LIMcc,ua

'I~

176611

eL.R
MOY

.51.R
SPIIOT,S'

\7177.

MOV

"".4U,
U"

176U0

HOV

17772.

TST

BEQ
HIoT
""H21/!

IIIIIIUU

176616

HOY

177774
lUll".,.

17 6 11'2

1.1 HlC.

HOY
INC
CHP

,.4

j I PEl') 1 OV;:RF"LOW 0 I 0 NOT ASSUU( NEW STACK
n(TUR~ 400RESS Or.J N(W !HACI(7

.+4
ItRRMI RETU!lN
,SUCK

AOO~ESS

/lOT SAVED ON NEW

R.,_:!,,/)

,GET R[ADY TO eET Ntw VALUr.S rOA TEST
,IIjITIALliU: THF: STACK POINTER
,AI:9TO"1: 5 TACK ADORESS 04T A

. . "RRYlC

,OrT Nr.W VALUEI
.
,ArnD"t TIM!: OUT TA4P VECTOR

leNT

SEQ

~ONE

leNT,III2,,"0

lIofh'c :?U" PASSES EI(EN COMPLCTEO

.IMP
HOY
TSTB
BPI.
HOY

BEGIN
*1, TPB
TPS

IAING 9ELI.

stQ

.I$R
NOP

,_4

,142,12
OOHU
1, Ii)

,Gr.T OECTA"E MONITOR RETURP~ ADDRESS
.00 NOT R[TURJol IF' (421:1"

.<-- ,RETURN TO OECUpE HOHIT"R

---...J

,ACT11

•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

~4l'·''';:ej&11-0Cr(Jr~A p:Pi1i2:; •• ;
cc~:
4
~V'1dOI. TAlJt.1.

..·

B(~I'"
EN~

1.1'"

u .. j
PHTY7

1'12
R6

51'
Tl~1'

f '"

T",:)
Ti!A
T!lA

01 'JilL A
r;H"VEC

iJ;!!1.1l2~

""1
'1.2
""'1~k!4

1.1'18
I.IMX '

I/JlI162~

• 0;1"3'"
'''1/J~''1'I''2

P'II
R3

seoPt:
,11110"

l!iil"0f1l06

1¥""iiI"'
'b
1I:lII!'lU

TO"t'
TeA

11"11'116
0"'11~4

11111422

nil

"''':,il42

STi( L.l:.t TeST

··
··

"4C'11,o;56

117'511'1

CONE

"~"U"
\!:'Il,:t,

14\., f

~~11"4

LIMe

1'71."

fie

0\0711

P4
!lI,H
ST ART

·"1l~"~1d3

i!J~"""2
~"1~14

TP.
TIIIJ

,,:111~l!

,,~u.·

r.l!'!U"

11·rr.a·n

"il17:!2
• 0t111:' :~l!
"fll~61

'."l/ll'liJ""
' '0;1:,,,,,1
""'''il:'04

jI"CE 12

OO~:E \

:lH'J1764

le"T

ili'!;!:'''!'1

l.I"cr.

, 022626

,1I0:'1;1:"1!1

POD

3:116<!fl

,,,.,'HH'05

I/JPll~l"

177'6 4

""117~

TPl!
'ilC

0"''''H'1I

177"66
• 1101131'1
tI)"'1~;'''

UIl"C,,1( • 17717"

IIIll·~t

?H;,

Ill""'
:!)"
117'71'1

111. 11

'1W"

~lI!a46

l1JeUJ'

"~14l.1

, ,,81771

ERRCRS DETtCTEO'

•,.

•
•
•
•
•
•
•

•
•
•
•
•

•
•
•
•
•
•
..•

"'A,,,:-tC-U-oCICIr.A flO"l1f2IJ-4' srI< 1.1 M Tr;5 T
OCI(U" A
~3171\"

UVlZ40

1 i IIi!

I"lll'l;t41il

":1.764

QI~H'IHt 7

,j ~

"'''0ill

117U'

OON£11

MACYH,U6

NOl'
NOP
JHP
,t.NO

l1~rrO~7.'

:t~I"~

"Ar.( 1\

I OVl"I.' Y

STAHT

,'QI;4
,RES""