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SUBROUTINE VEC
C
C THE CALL TO THIS MODULE IS
C VEC USET / V / C,N,X / C,N,X0 / C,N,X1 $
C OR VEC USETD / V / C,N,X / C,N,X0 / C,N,X1 $
C
C ALTERNATE FORM OF THE CALL TO THIS MODULE IS
C VEC USET / V / C,N,X / C,N,X0 / C,N,COMP $
C OR VEC USETD / V / C,N,X / C,N,X0 / C,N,COMP $
C
C ALTERNATE FORM OF THE CALL TO THIS MODULE IS
C VEC USET / V / C,N,X / C,N,COMP / C,N,X1 $
C OR VEC USETD / V / C,N,X / C,N,COMP / C,N,X1 $
C
C ALTERNATE FORM OF THE CALL TO THIS MODULE IS
C VEC USET / V / C,N,BITID / C,N,* / C,N,* / C,N,I $
C OR VEC USET / V / C,N,BITID / C,N,X1 $
C OR VEC USETD / V / C,N,BITID / C,N,* / C,N,* / C,N,I $
C OR VEC USETD / V / C,N,BITID / C,N,X1 $
C
C ALTERNATE FORM OF THE CALL TO THIS MODULE IS
C VEC USET / V / C,N,COLUMNS / C,N,LEFT / C,N,* /
C C,N,I $
C OR VEC USETD / V / C,N,COLUMNS / C,N,LEFT / C,N,* /
C C,N,I $
C ( V WILL HAVE -I- COLUMNS GENERATED FROM BIT
C POSITIONS 1,2,3,...,I OF USET (OR USETD) WHERE
C THE 32 RIGHT-MOST BITS ARE CONSIDERED, COUNTING
C FROM LEFT TO RIGHT. )
C
C ALTERNATE FORM OF THE CALL TO THIS MODULE IS
C VEC USET / V / C,N,COLUMNS / C,N,RIGHT / C,N,* /
C C,N,I $
C OR VEC USETD / V / C,N,COLUMNS / C,N,RIGHT / C,N,* /
C C,N,I $
C ( V WILL HAVE -I- COLUMNS GENERATED FROM BIT
C POSITIONS 32,31,...,33-I OF USET (OR USETD) WHERE
C THE 32 RIGHT-MOST BITS ARE CONSIDERED, COUNTING
C FROM LEFT TO RIGHT. )
C
C
C CORE REQUIREMENTS.. ONE BUFFER PLUS USET (OR USETD).
C FOR COLUMNS OPTION, ONE GINO BUFFER PLUS 2*USET (OR USETD) REQD.
C
C
EXTERNAL ANDF
LOGICAL LZ,L0,L1,COLS,FLAG1,FLAG2
INTEGER ANDF,MODNAM(2),FI,FO,F,NAM(2),T(7),TWO,
1 P(2),P1,P2,P3,P4,BN,BLANK,TYIN,TYOU,B(2),C(2),
2 OFFSET,D(2),LR(2,2)
CHARACTER UFM*23,UWM*25
COMMON /XMSSG / UFM,UWM
COMMON /BLANK / P1(2),P2(2),P3(2),P4
1 /ZZZZZZ/ X(1)
2 /SYSTEM/ LB,NOUT,NERR
3 /BITPOS/ BN(32,2)
4 /PACKX / TYIN,TYOU,II,NN,INCR
5 /TWO / TWO(32)
EQUIVALENCE (NR,T(3))
DATA NERMAX, BLANK / 10,1H /
DATA B,C,D / 4HBITI,4HD ,4HCOMP,4H ,4HCOLU,4HMNS /
DATA LR / 4HRIGH,4HT ,4HLEFT,4H /
DATA MODNAM/ 4HVEC ,4H /
DATA FI,FO , NBN / 101,201, 32 /
C
C
FLAG1 = .FALSE.
FLAG2 = .FALSE.
OFFSET = 0
NERR = 0
LZ = .FALSE.
L0 = .FALSE.
L1 = .FALSE.
LC = KORSZ(X) - LB
IF (LC .LE. 0) CALL MESAGE (-8,LC,MODNAM)
IB = LC + 1
C
C CHECK PARAMETER VALUES AND COMPUTE MASKS.
C
IF (P1(1).NE.D(1) .OR. P1(2).NE.D(2)) GO TO 5
COLS = .TRUE.
DO 3 J = 1,2
IF (P2(1).EQ.LR(1,J) .AND. P2(2).EQ.LR(2,J)) GO TO 4
3 CONTINUE
J = 2
4 J = 2*J - 3
GO TO 13
5 CONTINUE
COLS = .FALSE.
IF (P1(1).EQ.B(1) .AND. P1(2).EQ.B(2)) GO TO 13
IF (P1(2) .NE. BLANK) GO TO 11
DO 10 I = 1,NBN
IF (P1(1) .EQ. BN(I,2)) GO TO 19
10 CONTINUE
11 P(1) = P1(1)
P(2) = P1(2)
GO TO 9904
13 LZ = .TRUE.
L0 = .TRUE.
IF (P4.LT.0 .OR. P4.GT.32) GO TO 9908
IF (COLS) GO TO 50
IF (P4 .GT. 0) GO TO 18
IF (P2(2) .NE. BLANK) GO TO 21
DO 15 I = 1,NBN
IF (P2(1) .EQ. BN(I,2)) GO TO 35
15 CONTINUE
GO TO 21
18 MASKX1 = TWO(P4)
GO TO 50
19 I = BN(I,1)
MASKX = TWO(I)
C
IF (P2(1).EQ.C(1) .AND. P2(2).EQ.C(2)) GO TO 23
IF (P2(2) .NE. BLANK) GO TO 21
DO 20 I = 1,NBN
IF (P2(1) .EQ. BN(I,2)) GO TO 25
20 CONTINUE
21 P(1) = P2(1)
P(2) = P2(2)
GO TO 9904
23 L0 = .TRUE.
GO TO 26
25 I = BN(I,1)
MASKX0 = TWO(I)
C
26 CONTINUE
IF (P3(1).EQ.C(1) .AND. P3(2).EQ.C(2)) GO TO 33
IF (P3(2) .NE. BLANK) GO TO 31
DO 30 I = 1,NBN
IF (P3(1) .EQ. BN(I,2)) GO TO 35
30 CONTINUE
31 P(1) = P3(1)
P(2) = P3(2)
GO TO 9904
33 L1 = .TRUE.
IF (L0) GO TO 9907
GO TO 50
35 I = BN(I,1)
MASKX1 = TWO(I)
C
C BLAST READ USET (OR USETD) INTO CORE.
C
50 CONTINUE
F = FI
CALL FNAME (F,NAM)
CALL GOPEN (F,X(IB),0)
CALL READ (*9902,*100,F,X,LC,0,NW)
C
C INSUFFICIENT CORE - IF DESIRED, THIS ROUTINE CAN BE WRITTEN TO
C RUN IN SMALLER CORE.
C
LCEX = 0
70 CALL READ (*9902,*80,F,X,LC,0,NW)
LCEX = LCEX + LC
GO TO 70
80 LCEX = LCEX + NW
IF (COLS) LCEX = 2*LCEX
GO TO 9903
100 CONTINUE
CALL CLOSE (F,1)
IF (.NOT.COLS) GO TO 150
IF (P4 .LE. 0) GO TO 9908
OFFSET = NW
K = 1
L = 1
IF (J .LT. 0) K = 32
MASKX1 = TWO(K)
IF (2*NW .LE. LC) GO TO 150
LCEX = 2*NW - LC
GO TO 9903
150 CONTINUE
C
C PREPARE OUTPUT FILE.
C
F = FO
CALL GOPEN (F,X(IB),1)
CALL MAKMCB (T,F,0,2,1)
TYIN = 1
TYOU = 1
II = 1
INCR = 1
C
C CREATE VECTOR IN CORE OCCUPIED BY USET (OR USETD).
C
170 NR = 0
NZ = 0
C
DO 500 I = 1,NW
IF (LZ) GO TO 220
IF (ANDF(X(I),MASKX) .EQ. 0) GO TO 400
220 CONTINUE
IF (.NOT.L0) GO TO 230
IF (ANDF(X(I),MASKX1) .EQ. 0) GO TO 370
GO TO 300
230 IF (.NOT.L1) GO TO 240
IF (ANDF(X(I),MASKX0) .EQ. 0) GO TO 300
GO TO 370
240 CONTINUE
IF (ANDF(X(I),MASKX1) .EQ. 0) GO TO 350
IF (ANDF(X(I),MASKX0) .EQ. 0) GO TO 300
NERR = NERR + 1
IF (NERR .GT. NERMAX) GO TO 500
WRITE (NOUT,250) UFM,I
250 FORMAT (A23,' 2120, MODULE VEC - BOTH SUBSET BITS ARE NON-ZERO.',
1 3X,'I =',I10)
GO TO 500
300 NR = NR + 1
NZ = NZ + 1
X(NR+OFFSET) = 1.0
GO TO 500
350 CONTINUE
IF (ANDF(X(I),MASKX0) .NE. 0) GO TO 370
NERR = NERR + 1
IF (NERR .GT. NERMAX) GO TO 500
WRITE (NOUT,360) UFM,I
360 FORMAT (A23,' 2121, MODULE VEC - BOTH SUBSET BITS ARE ZERO.',3X,
1 'I =',I10)
GO TO 500
370 NR = NR + 1
X(NR+OFFSET) = 0.0
GO TO 500
400 IF (L0) GO TO 450
IF (ANDF(X(I),MASKX0) .EQ. 0) GO TO 450
NERR = NERR + 1
IF (NERR .GT. NERMAX) GO TO 450
WRITE (NOUT,410) UFM,I
410 FORMAT (A23,' 2122, MODULE VEC - SET X BIT IS ZERO BUT SUBSET X0',
1 ' BIT IS NOT. I =',I10)
450 IF (L1) GO TO 500
IF (ANDF(X(I),MASKX1) .EQ. 0) GO TO 500
NERR = NERR + 1
IF (NERR .GT. NERMAX) GO TO 500
WRITE (NOUT,460) UFM,I
460 FORMAT (A23,' 2123, MODULE VEC - SET X BIT IS ZERO BUT SUBSET X1',
1 ' BIT IS NOT. I =',I10)
500 CONTINUE
C
IF (NERR .LE. 0) GO TO 540
IF (NERR-NERMAX) 9995,9995,9906
540 CONTINUE
C
IF (FLAG1) GO TO 600
FLAG1 = .TRUE.
IF (NR .GT. 0) GO TO 600
WRITE (NOUT,550) UWM
550 FORMAT (A25,' 2124, MODULE VEC - NR=0, OUTPUT WILL BE PURGED.')
GO TO 900
600 IF (NZ .GT. 0) GO TO 700
IF (FLAG2) GO TO 700
FLAG2 = .TRUE.
WRITE (NOUT,650) UWM
650 FORMAT (A25,' 2125, MODULE VEC - NZ=0, ONE OR MORE COLUMNS OF ',
1 'OUTPUT MATRIX WILL BE NULL.')
GO TO 750
700 CONTINUE
C
C PACK OUT COLUMN OF OUTPUT VECTOR.
C
750 NN = NR
CALL PACK (X(OFFSET+1),F,T)
IF (.NOT.COLS .OR. L.GE.P4) GO TO 800
L = L + 1
K = K + J
MASKX1 = TWO(K)
GO TO 170
800 CALL WRTTRL (T)
900 CALL CLOSE (F,1)
C
RETURN
C
C ERROR PROCESSING.
C
9902 WRITE (NOUT,9952) UFM,F,NAM
9952 FORMAT (A23,' 2141, MODULE VEC - EOF ENCOUNTERED WHILE READING ',
1 'GINO FILE ',I3,', DATA BLOCK ',2A4)
GO TO 9995
9903 WRITE (NOUT,9953) UFM,LC,LCEX
9953 FORMAT (A23,' 2142, INSUFFICIENT CORE FOR MODULE VEC. AVAILABLE',
1 ' CORE =',I11,' WORDS.', /5X,
2 'ADDITIONAL CORE NEEDED =',I11,' WORDS.')
GO TO 9995
9904 WRITE (NOUT,9954) UFM,P
9954 FORMAT (A23,' 2143, MODULE VEC UNABLE TO IDENTIFY SET OR SUBSET ',
1 'DESCRIPTOR ',2A4)
GO TO 9995
9906 WRITE (NOUT,9956) UFM,NERR,NERMAX
9956 FORMAT (A23,' 2145,',I8,' FATAL MESSAGES HAVE BEEN GENERATED IN',
1 ' SUBROUTINE VEC.', /5X,
2 'ONLY THE FIRST',I4,' HAVE BEEN PRINTED.')
GO TO 9995
9907 WRITE (NOUT,9957) UFM
9957 FORMAT (A23,' 2146, BOTH OF THE SECOND AND THIRD VEC PARAMETERS ',
1 'REQUEST COMPLEMENT.')
GO TO 9995
9908 WRITE (NOUT,9958) UFM,P4
9958 FORMAT (A23,' 2150, ILLEGAL VALUE FOR FOURTH PARAMETER =',I11)
GO TO 9995
9995 CALL MESAGE (-61,0,0)
RETURN
C
END
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