Bill MacKenty

Original fortran code for Adventure - part 4

Cross posting this to reduce possibility of link rot and preserve important part of our heritage:

Source: http://jerz.setonhill.edu/if/crowther/
Original news story: http://www.gamedev.net/community/forums/topic.asp?topic_id=460192

If you are the owner of this code, and would like me to remove it, please let me know. kthxbai.
C ADVENTURES
IMPLICIT INTEGER(A-Z)
REAL RAN
COMMON RTEXT,LLINE
DIMENSION IOBJ(300),ICHAIN(100),IPLACE(100)
1 ,IFIXED(100),COND(300),PROP(100),ABB(300),LLINE(1000,22)
2 ,LTEXT(300),STEXT(300),KEY(300),DEFAULT(300),TRAVEL(1000)
3 ,TK(25),KTAB(1000),ATAB(1000),BTEXT(200),DSEEN(10)
4 ,DLOC(10),ODLOC(10),DTRAV(20),RTEXT(100),JSPKT(100)
5 ,IPLT(100),IFIXT(100),QUIP(100)

C READ THE PARAMETERS

IF(SETUP.NE.0) GOTO 1
SETUP=1
KEYS=1
LAMP=2
GRATE=3
ROD=5
BIRD=7
NUGGET=10
SNAKE=11
FOOD=19
WATER=20
AXE=21
DATA(QUIP(I),I=1,9)/50,51,64,66,67,68,69,49,79/
DATA(JSPKT(I),I=1,16)/24,29,0,31,0,31,38,38,42,42,43,46,77,71
1 ,73,75/
DATA(IPLT(I),I=1,20)/3,3,8,10,11,14,13,9,15,18,19,17,27,28,29
1 ,30,0,0,3,3/
DATA(IFIXT(I),I=1,20)/0,0,1,0,0,1,0,1,1,0,1,1,0,0,0,0,0,0,0,0/
DATA(DTRAV(I),I=1,15)/36,28,19,30,62,60,41,27,17,15,19,28,36
1 ,300,300/
DO 1001 I=1,300
STEXT(I)=0
IF(I.LE.200) BTEXT(I)=0
IF(I.LE.100)RTEXT(I)=0
1001 LTEXT(I)=0
I=1
CALL IFILE(1,‘TEXT’)
1002 READ(1,1003) IKIND
1003 FORMAT(G)
GOTO(1100,1004,1004,1013,1020,1004,1004)(IKIND+1)
1004 READ(1,1005)JKIND,(LLINE(I,J),J=3,22)
1005 FORMAT(1G,20A5)
IF(JKIND.EQ.-1) GOTO 1002
DO 1006 K=1,20
KK=K
IF(LLINE(I,21-K).NE.’ ‘) GOTO 1007
1006 CONTINUE
STOP
1007 LLINE(I,2)=20-KK+1
LLINE(I,1)=0
IF(IKIND.EQ.6)GOTO 1023
IF(IKIND.EQ.5)GOTO 1011
IF(IKIND.EQ.1) GOTO 1008
IF(STEXT(JKIND).NE.0) GOTO 1009
STEXT(JKIND)=I
GOTO 1010

1008 IF(LTEXT(JKIND).NE.0) GOTO 1009
LTEXT(JKIND)=I
GOTO 1010
1009 LLINE(I-1,1)=I
1010 I=I+1
IF(I.NE.1000)GOTO 1004
PAUSE ‘TOO MANY LINES’

1011 IF(JKIND.LT.200)GOTO 1012
IF(BTEXT(JKIND-100).NE.0)GOTO 1009
BTEXT(JKIND-100)=I
BTEXT(JKIND-200)=I
GOTO 1010
1012 IF(BTEXT(JKIND).NE.0)GOTO 1009
BTEXT(JKIND)=I
GOTO 1010

1023 IF(RTEXT(JKIND).NE.0) GOTO 1009
RTEXT(JKIND)=I
GOTO 1010

1013 I=1
1014 READ(1,1015)JKIND,LKIND,(TK(L),L=1,10)
1015 FORMAT(12G)
IF(JKIND.EQ.-1) GOTO 1002
IF(KEY(JKIND).NE.0) GOTO 1016
KEY(JKIND)=I
GOTO 1017
1016 TRAVEL(I-1)=-TRAVEL(I-1)
1017 DO 1018 L=1,10
IF(TK(L).EQ.0) GOTO 1019
TRAVEL(I)=LKIND*1024+TK(L)
I=I+1
IF(I.EQ.1000) STOP
1018 CONTINUE
1019 TRAVEL(I-1)=-TRAVEL(I-1)
GOTO 1014

1020 DO 1022 IU=1,1000
READ(1,1021) KTAB(IU),ATAB(IU)
1021 FORMAT(G,A5)
IF(KTAB(IU).EQ.-1)GOTO 1002
1022 CONTINUE
PAUSE ‘TOO MANY WORDS’

C TRAVEL = NEG IF LAST THIS SOURCE + DEST*1024 + KEYWORD

C COND = 1 IF LIGHT,  2 IF DON T ASK QUESTION

1100 DO 1101 I=1,100
IPLACE(I)=IPLT(I)
IFIXED(I)=IFIXT(I)
1101 ICHAIN(I)=0

DO 1102 I=1,300
COND(I)=0
ABB(I)=0
1102 IOBJ(I)=0
DO 1103 I=1,10
1103 COND(I)=1
COND(16)=2
COND(20)=2
COND(21)=2
COND(22)=2
COND(23)=2
COND(24)=2
COND(25)=2
COND(26)=2
COND(31)=2
COND(32)=2
COND(79)=2

DO 1107 I=1,100
KTEM=IPLACE(I)
IF(KTEM.EQ.0)GOTO 1107
IF(IOBJ(KTEM).NE.0) GOTO 1104
IOBJ(KTEM)=I
GO TO 1107
1104 KTEM=IOBJ(KTEM)
1105 IF(ICHAIN(KTEM).NE.0) GOTO 1106
ICHAIN(KTEM)=I
GOTO 1107
1106 KTEM=ICHAIN(KTEM)
GOTO 1105
1107 CONTINUE
IDWARF=0
IFIRST=1
IWEST=0
ILONG=1
IDETAL=0
PAUSE ‘INIT DONE’

1 CALL YES(65,1,0,YEA)
L=1
LOC=1
2 DO 73 I=1,3
IF(ODLOC(I).NE.L.OR.DSEEN(I).EQ.0)GOTO 73
L=LOC
CALL SPEAK(2)
GOTO 74
73 CONTINUE
74 LOC=L

C DWARF STUFF

IF(IDWARF.NE.0) GOTO 60
IF(LOC.EQ.15) IDWARF=1
GOTO 71
60 IF(IDWARF.NE.1)GOTO 63
IF(RAN(QZ).GT.0.05) GOTO 71
IDWARF=2
DO 61 I=1,3
DLOC(I)=0
ODLOC(I)=0
61 DSEEN(I)=0
CALL SPEAK(3)
ICHAIN(AXE)=IOBJ(LOC)
IOBJ(LOC)=AXE
IPLACE(AXE)=LOC
GOTO 71

63 IDWARF=IDWARF+1
ATTACK=0
DTOT=0
STICK=0
DO 66 I=1,3
IF(2*I+IDWARF.LT.8)GOTO 66
IF(2*I+IDWARF.GT.23.AND.DSEEN(I).EQ.0)GOTO 66
ODLOC(I)=DLOC(I)
IF(DSEEN(I).NE.0.AND.LOC.GT.14)GOTO 65
DLOC(I)=DTRAV(I*2+IDWARF-8)
DSEEN(I)=0
IF(DLOC(I).NE.LOC.AND.ODLOC(I).NE.LOC) GOTO 66
65 DSEEN(I)=1
DLOC(I)=LOC
DTOT=DTOT+1
IF(ODLOC(I).NE.DLOC(I)) GOTO 66
ATTACK=ATTACK+1
IF(RAN(QZ).LT.0.1) STICK=STICK+1
66 CONTINUE
IF(DTOT.EQ.0) GOTO 71
IF(DTOT.EQ.1)GOTO 75
TYPE 67,DTOT
67 FORMAT(’ THERE ARE ‘,I2,’ THREATENING LITTLE DWARVES IN THE
1 ROOM WITH YOU.’,/)
GOTO 77
75 CALL SPEAK(4)
77 IF(ATTACK.EQ.0)GOTO 71
IF(ATTACK.EQ.1)GOTO 79
TYPE 78,ATTACK
78 FORMAT(’ ‘,I2,’ OF THEM THROW KNIVES AT YOU!’,/)
GOTO 81
79 CALL SPEAK(5)
CALL SPEAK(52+STICK)
GOTO(71,83)(STICK+1)

81 IF(STICK.EQ.0) GOTO 69
IF(STICK.EQ.1)GOTO 82
TYPE 68,STICK
68 FORMAT(’ ‘,I2,’ OF THEM GET YOU.’,/)
GOTO 83
82 CALL SPEAK(6)
83 PAUSE ‘GAMES OVER’
GOTO 71
69 CALL SPEAK(7)

C PLACE DESCRIPTOR

71 KK=STEXT(L)
IF(ABB(L).EQ.0.OR.KK.EQ.0)KK=LTEXT(L)
IF(KK.EQ.0) GOTO 7
4 TYPE 5,(LLINE(KK,JJ),JJ=3,LLINE(KK,2))
5 FORMAT(20A5)
KK=KK+1
IF(LLINE(KK-1,1).NE.0) GOTO 4
TYPE 6
6 FORMAT(/)
7 IF(COND(L).EQ.2)GOTO 8
IF(LOC.EQ.33.AND.RAN(QZ).LT.0.25)CALL SPEAK(8)
J=L
GOTO 2000

C GO GET A NEW LOCATION

8 KK=KEY(LOC)
IF(KK.EQ.0)GOTO 19
IF(K.EQ.57)GOTO 32
IF(K.EQ.67)GOTO 40
IF(K.EQ.8)GOTO 12
LOLD=L
9 LL=TRAVEL(KK)
IF(LL.LT.0) LL=-LL
IF(1.EQ.MOD(LL,1024))GOTO 10
IF(K.EQ.MOD(LL,1024))GOTO 10
IF(TRAVEL(KK).LT.0)GOTO 11
KK=KK+1
GOTO 9
12 TEMP=LOLD
LOLD=L
L=TEMP
GOTO 21
10 L=LL/1024
GOTO 21
11 JSPK=12
IF(K.GE.43.AND.K.LE.46)JSPK=9
IF(K.EQ.29.OR.K.EQ.30)JSPK=9
IF(K.EQ.7.OR.K.EQ.8.OR.K.EQ.36.OR.K.EQ.37.OR.K.EQ.68)
1 JSPK=10
IF(K.EQ.11.OR.K.EQ.19)JSPK=11
IF(JVERB.EQ.1)JSPK=59
IF(K.EQ.48)JSPK=42
IF(K.EQ.17)JSPK=80
CALL SPEAK(JSPK)
GOTO 2
19 CALL SPEAK(13)
L=LOC
IF(IFIRST.EQ.0) CALL SPEAK(14)
21 IF(L.LT.300)GOTO 2
IL=L-300+1
GOTO(22,23,24,25,26,31,27,28,29,30,33,34,36,37)IL
GOTO 2

22 L=6
IF(RAN(QZ).GT.0.5) L=5
GOTO 2
23 L=23
IF(PROP(GRATE).NE.0) L=9
GOTO 2
24 L=9
IF(PROP(GRATE).NE.0)L=8
GOTO 2
25 L=20
IF(IPLACE(NUGGET).NE.-1)L=15
GOTO 2
26 L=22
IF(IPLACE(NUGGET).NE.-1) L=14
GOTO 2
27 L=27
IF(PROP(12).EQ.0)L=31
GOTO 2
28 L=28
IF(PROP(SNAKE).EQ.0)L=32
GOTO 2
29 L=29
IF(PROP(SNAKE).EQ.0) L=32
GOTO 2
30 L=30
IF(PROP(SNAKE).EQ.0) L=32
GOTO 2
31 PAUSE ‘GAME IS OVER’
GOTO 1100
32 IF(IDETAL.LT.3)CALL SPEAK(15)
IDETAL=IDETAL+1
L=LOC
ABB(L)=0
GOTO 2
33 L=8
IF(PROP(GRATE).EQ.0) L=9
GOTO 2
34 IF(RAN(QZ).GT.0.2)GOTO 35
L=68
GOTO 2
35 L=65
38 CALL SPEAK(56)
GOTO 2
36 IF(RAN(QZ).GT.0.2)GOTO 35
L=39
IF(RAN(QZ).GT.0.5)L=70
GOTO 2
37 L=66
IF(RAN(QZ).GT.0.4)GOTO 38
L=71
IF(RAN(QZ).GT.0.25)L=72
GOTO 2
39 L=66
IF(RAN(QZ).GT.0.2)GOTO 38
L=77
GOTO 2
40 IF(LOC.LT.8)CALL SPEAK(57)
IF(LOC.GE.8)CALL SPEAK(58)
L=LOC
GOTO 2

C DO NEXT INPUT

2000 LTRUBL=0
LOC=J
ABB(J)=MOD((ABB(J)+1),5)
IDARK=0
IF(MOD(COND(J),2).EQ.1) GOTO 2003
IF((IPLACE(2).NE.J).AND.(IPLACE(2).NE.-1)) GOTO 2001
IF(PROP(2).EQ.1)GOTO 2003
2001 CALL SPEAK(16)
IDARK=1

2003 I=IOBJ(J)
2004 IF(I.EQ.0) GOTO 2011
IF(((I.EQ.6).OR.(I.EQ.9)).AND.(IPLACE(10).EQ.-1))GOTO 2008
ILK=I
IF(PROP(I).NE.0) ILK=I+100
KK=BTEXT(ILK)
IF(KK.EQ.0) GOTO 2008
2005 TYPE 2006,(LLINE(KK,JJ),JJ=3,LLINE(KK,2))
2006 FORMAT(20A5)
KK=KK+1
IF(LLINE(KK-1,1).NE.0) GOTO 2005
TYPE 2007
2007 FORMAT(/)
2008 I=ICHAIN(I)
GOTO 2004

C K=1 MEANS ANY INPUT

2012 A=B
JTWO=0
GOTO 2021

2010 JSPK=QUIP(K)
GOTO 5200

2009 JSPK=54
5200 CALL SPEAK(JSPK)

2011 JVERB=0
JOBJ=0
JTWO=0

2020 CALL GETIN(JTWO,A,TWOWD,B)
K=70
IF(A.EQ.‘ENTER’.AND.(B.EQ.‘STREAM’.OR.B.EQ.‘WATER’))GOTO 2010
IF(A.EQ.‘ENTER’.AND.JTWO.NE.0)GOTO 2012
2021 IF(A.NE.‘WEST’)GOTO 2023
IWEST=IWEST+1
IF(IWEST.NE.10)GOTO 2023
CALL SPEAK(17)
2023 DO 2024 I=1,1000
IF(KTAB(I).EQ.-1)GOTO 3000
IF(ATAB(I).EQ.A)GOTO 2025
2024 CONTINUE
PAUSE ‘ERROR 6’
2025 K=MOD(KTAB(I),1000)
KQ=KTAB(I)/1000+1
GOTO (5014,5000,2026,2010)KQ
PAUSE ‘NO NO’
2026 JVERB=K
JSPK=JSPKT(JVERB)
IF(JTWO.NE.0)GOTO 2028
IF(JOBJ.EQ.0)GOTO 2036
2027 GOTO(9000,5066,3000,5031,2009,5031,9404,9406,5081,5200,
1 5200,5300,5506,5502,5504,5505)JVERB
PAUSE ‘ERROR 5’

2028 A=TWOWD
B=’ ‘
JTWO=0
GOTO 2023

3000 JSPK=60
IF(RAN(QZ).GT.0.8)JSPK=61
IF(RAN(QZ).GT.0.8)JSPK=13
CALL SPEAK(JSPK)
LTRUBL=LTRUBL+1
IF(LTRUBL.NE.3)GOTO 2020
IF(J.NE.13.OR.IPLACE(7).NE.13.OR.IPLACE(5).NE.-1)GOTO 2032
CALL YES(18,19,54,YEA)
GOTO 2033
2032 IF(J.NE.19.OR.PROP(11).NE.0.OR.IPLACE(7).EQ.-1)GOTO 2034
CALL YES(20,21,54,YEA)
GOTO 2033
2034 IF(J.NE.8.OR.PROP(GRATE).NE.0)GOTO 2035
CALL YES(62,63,54,YEA)
2033 IF(YEA.EQ.0)GOTO 2011
GOTO 2020
2035 IF(IPLACE(5).NE.J.AND.IPLACE(5).NE.-1)GOTO 2020
IF(JOBJ.NE.5)GOTO 2020
CALL SPEAK(22)
GOTO 2020

2036 GOTO(2037,5062,5062,9403,2009,9403,9404,9406,5062,5062,
1 5200,5300,5062,5062,5062,5062)JVERB
PAUSE ‘OOPS’
2037 IF((IOBJ(J).EQ.0).OR.(ICHAIN(IOBJ(J)).NE.0)) GOTO 5062
DO 5312 I=1,3
IF(DSEEN(I).NE.0)GOTO 5062
5312 CONTINUE
JOBJ=IOBJ(J)
GOTO 2027
5062 IF(B.NE.’ ‘)GOTO 5333
TYPE 5063,A
5063 FORMAT(’  ‘,A5,’ WHAT?’,/)
GOTO 2020

5333 TYPE 5334,A,B
5334 FORMAT(’ ‘,2A5,’ WHAT?’,/)
GOTO 2020
5014 IF(IDARK.EQ.0) GOTO 8

IF(RAN(QZ).GT.0.25) GOTO 8
5017 CALL SPEAK(23)
PAUSE ‘GAME IS OVER’
GOTO 2011

5000 JOBJ=K
IF(JTWO.NE.0)GOTO 2028
IF((J.EQ.IPLACE(K)).OR.(IPLACE(K).EQ.-1)) GOTO 5004
IF(K.NE.GRATE)GOTO 502
IF((J.EQ.1).OR.(J.EQ.4).OR.(J.EQ.7))GOTO 5098
IF((J.GT.9).AND.(J.LT.15))GOTO 5097
502 IF(B.NE.’ ‘)GOTO 5316
TYPE 5005,A
5005 FORMAT(’ I SEE NO ‘,A5,’ HERE.’,/)
GOTO 2011
5316 TYPE 5317,A,B
5317 FORMAT(’ I SEE NO ‘,2A5,’ HERE.’/)
GOTO 2011
5098 K=49
GOTO 5014
5097 K=50
GOTO 5014
5004 JOBJ=K
IF(JVERB.NE.0)GOTO 2027

5064 IF(B.NE.’ ‘)GOTO 5314
TYPE 5001,A
5001 FORMAT(’ WHAT DO YOU WANT TO DO WITH THE ‘,A5,’?’,/)
GOTO 2020
5314 TYPE 5315,A,B
5315 FORMAT(’ WHAT DO YOU WANT TO DO WITH THE ‘,2A5,’?’,/)
GOTO 2020

C CARRY

9000 IF(JOBJ.EQ.18)GOTO 2009
IF(IPLACE(JOBJ).NE.J) GOTO 5200
9001 IF(IFIXED(JOBJ).EQ.0)GOTO 9002
CALL SPEAK(25)
GOTO 2011
9002 IF(JOBJ.NE.BIRD)GOTO 9004
IF(IPLACE(ROD).NE.-1)GOTO 9003
CALL SPEAK(26)
GOTO 2011
9003 IF((IPLACE(4).EQ.-1).OR.(IPLACE(4).EQ.J)) GOTO 9004
CALL SPEAK(27)
GOTO 2011
9004 IPLACE(JOBJ)=-1
9005 IF(IOBJ(J).NE.JOBJ) GOTO 9006
IOBJ(J)=ICHAIN(JOBJ)
GOTO 2009
9006 ITEMP=IOBJ(J)
9007 IF(ICHAIN(ITEMP).EQ.(JOBJ)) GOTO 9008
ITEMP=ICHAIN(ITEMP)
GOTO 9007
9008 ICHAIN(ITEMP)=ICHAIN(JOBJ)
GOTO 2009

C LOCK, UNLOCK, NO OBJECT YET

9403 IF((J.EQ.8).OR.(J.EQ.9))GOTO 5105
5032 CALL SPEAK(28)
GOTO 2011
5105 JOBJ=GRATE
GOTO 2027

C DISCARD OBJECT

5066 IF(JOBJ.EQ.18)GOTO 2009
IF(IPLACE(JOBJ).NE.-1) GOTO 5200
5012 IF((JOBJ.NE.BIRD).OR.(J.NE.19).OR.(PROP(11).EQ.1))GOTO 9401
CALL SPEAK(30)
PROP(11)=1
5160 ICHAIN(JOBJ)=IOBJ(J)
IOBJ(J)=JOBJ
IPLACE(JOBJ)=J
GOTO 2011

9401 CALL SPEAK(54)
GOTO 5160

C LOCK,UNLOCK OBJECT

5031 IF(IPLACE(KEYS).NE.-1.AND.IPLACE(KEYS).NE.J)GOTO 5200
IF(JOBJ.NE.4)GOTO 5102
CALL SPEAK(32)
GOTO 2011
5102 IF(JOBJ.NE.KEYS)GOTO 5104
CALL SPEAK(55)
GOTO 2011
5104 IF(JOBJ.EQ.GRATE)GOTO 5107
CALL SPEAK(33)
GOTO 2011
5107 IF(JVERB.EQ.4) GOTO 5033
IF(PROP(GRATE).NE.0)GOTO 5034
CALL SPEAK(34)
GOTO 2011
5034 CALL SPEAK(35)
PROP(GRATE)=0
PROP(8)=0
GOTO 2011
5033 IF(PROP(GRATE).EQ.0)GOTO 5109
CALL SPEAK(36)
GOTO 2011
5109 CALL SPEAK(37)
PROP(GRATE)=1
PROP(8)=1
GOTO 2011

C LIGHT LAMP

9404 IF((IPLACE(2).NE.J).AND.(IPLACE(2).NE.-1))GOTO 5200
PROP(2)=1
IDARK=0
CALL SPEAK(39)
GOTO 2011

C LAMP OFF

9406 IF((IPLACE(2).NE.J).AND.(IPLACE(2).NE.-1)) GOTO 5200
PROP(2)=0
CALL SPEAK(40)
GOTO 2011

C STRIKE

5081 IF(JOBJ.NE.12)GOTO 5200
PROP(12)=1
GOTO 2003

C ATTACK

5300 DO 5313 ID=1,3
IID=ID
IF(DSEEN(ID).NE.0)GOTO 5307
5313 CONTINUE
IF(JOBJ.EQ.0)GOTO 5062
IF(JOBJ.EQ.SNAKE) GOTO 5200
IF(JOBJ.EQ.BIRD) GOTO 5302
CALL SPEAK(44)
GOTO 2011
5302 CALL SPEAK(45)
IPLACE(JOBJ)=300
GOTO 9005

5307 IF(RAN(QZ).GT.0.4) GOTO 5309
DSEEN(IID)=0
ODLOC(IID)=0
DLOC(IID)=0
CALL SPEAK(47)
GOTO 5311
5309 CALL SPEAK(48)
5311 K=21
GOTO 5014

C EAT

5502 IF((IPLACE(FOOD).NE.J.AND.IPLACE(FOOD).NE.-1).OR.PROP(FOOD).NE.0
1 .OR.JOBJ.NE.FOOD)GOTO 5200
PROP(FOOD)=1
5501 JSPK=72
GOTO 5200

C DRINK

5504 IF((IPLACE(WATER).NE.J.AND.IPLACE(WATER).NE.-1)
1 .OR.PROP(WATER).NE.0.OR.JOBJ.NE.WATER) GOTO 5200
PROP(WATER)=1
JSPK=74
GOTO 5200

C RUB

5505 IF(JOBJ.NE.LAMP)JSPK=76
GOTO 5200

C POUR

5506 IF(JOBJ.NE.WATER)JSPK=78
PROP(WATER)=1
GOTO 5200

END

SUBROUTINE SPEAK(IT)
IMPLICIT INTEGER(A-Z)
COMMON RTEXT,LLINE
DIMENSION RTEXT(100),LLINE(1000,22)

KKT=RTEXT(IT)
IF(KKT.EQ.0)RETURN
999 TYPE 998, (LLINE(KKT,JJT),JJT=3,LLINE(KKT,2))
998 FORMAT(20A5)
KKT=KKT+1
IF(LLINE(KKT-1,1).NE.0)GOTO 999
997 TYPE 996
996 FORMAT(/)
RETURN
END

SUBROUTINE GETIN(TWOW,B,C,D)
IMPLICIT INTEGER(A-Z)
DIMENSION A(5),M2(6)
DATA M2/“4000000000,“20000000,“100000,“400,“2,0/
6 ACCEPT 1,(A(I), I=1,4)
1 FORMAT(4A5)
TWOW=0
S=0
B=A(1)
DO 2 J=1,4
DO 2 K=1,5
MASK1=“774000000000
IF(K.NE.1) MASK1=“177*M2(K)
IF(((A(J).XOR.“201004020100).AND.MASK1).EQ.0)GOTO 3
IF(S.EQ.0) GOTO 2
TWOW=1
CALL SHIFT(A(J),7*(K-1),XX)
CALL SHIFT(A(J+1),7*(K-6),YY)
MASK=-M2(6-K)
C=(XX.AND.MASK)+(YY.AND.(-2-MASK))
GOTO 4
3 IF(S.EQ.1) GOTO 2
S=1
IF(J.EQ.1) B=(B.AND.-M2(K)).OR.(“201004020100.AND.
1 (-M2(K).XOR.-1))
2 CONTINUE
4 D=A(2)
RETURN
END

SUBROUTINE YES(X,Y,Z,YEA)
IMPLICIT INTEGER(A-Z)
CALL SPEAK(X)
CALL GETIN(JUNK,IA1,JUNK,IB1)
IF(IA1.EQ.‘NO’.OR.IA1.EQ.‘N’) GOTO 1
YEA=1
IF(Y.NE.0) CALL SPEAK(Y)
RETURN
1 YEA=0
IF(Z.NE.0)CALL SPEAK(Z)
RETURN
END

SUBROUTINE SHIFT (VAL,DIST,RES)
IMPLICIT INTEGER (A-Z)
RES=VAL
IF(DIST)10,20,30
10 IDIST=-DIST
DO 11 I=1,IDIST
J = 0
IF (RES.LT.0) J=“200000000000
11 RES = ((RES.AND.“377777777777)/2) + J
20 RETURN
30 DO 31 I=1,DIST
j = 0
IF ((RES.AND.“200000000000).NE.0) J=“400000000000
31 RES = (RES.AND.“177777777777)*2 + J
RETURN
END