File: alg.f

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      SUBROUTINE ALG
C
C     THIS IS THE DRIVER SUBROUTINE FOR THE ALG MODULE
C
      INTEGER         APRESS,ATEMP,STRML,PGEOM,NAME(2),SYSBUF,
     1                TITLE1(18),WD(2),ALGDB
      CHARACTER       UFM*23,UWM*25,UIM*29
      COMMON /XMSSG / UFM,UWM,UIM
      COMMON /BLANK / APRESS,ATEMP,STRML,PGEOM,IPRTK,IFAIL,SIGN,ZORIGN,
     1                FXCOOR,FYCOOR,FZCOOR
      COMMON /SYSTEM/ SYSBUF,NOUT
      COMMON /ALGINO/ ISCR3,ALGDB
      COMMON /UDSTR2/ NBLDES,STAG(21),CHORDD(21)
      COMMON /UD3PRT/ IPRTC,ISTRML,IPGEOM
      COMMON /ZZZZZZ/ IZ(1)
      COMMON /CONTRL/ NANAL,NAERO,NARBIT,LOG1,LOG2,LOG3,LOG4,LOG5,LOG6
      DATA    NAME  / 4HALG ,4H    /
      DATA    WD    / 2HNO  ,2HAN  /
      DATA    ISCR1 , ISCR2 / 301,302 /
C
      ISCR3  = 303
      ISCR4  = 304
      ISTRML = STRML
      IPGEOM = PGEOM
      IF (IPGEOM .EQ. 3) IPGEOM = 1
      IPRTC = IPRTK
      NZ    = KORSZ(IZ)
      IBUF1 = NZ - SYSBUF + 1
      IBUF2 = IBUF1 - SYSBUF
      IBUF3 = IBUF2 - SYSBUF
      IF (3*SYSBUF .GT. NZ) CALL MESAGE (-8,0,NAME)
      CALL ALGPR (IERR)
      IF (IERR .LT. 0) GO TO 400
      ALGDB = ISCR1
      IF (IERR .EQ. 1) ALGDB = ISCR2
      LOG1  = ALGDB
      LOG2  = NOUT
      LOG3  = 7
      LOG4  = ALGDB
      LOG5  = ISCR4
      LOG6  = 9
      CALL GOPEN (LOG1,IZ(IBUF1),0)
      CALL FREAD (LOG1,TITLE1,18,1)
      CALL FREAD (LOG1,NANAL,1,0)
      CALL FREAD (LOG1,NAERO,1,1)
      NARBIT = 0
      IF (IPRTC .EQ. 1) WRITE (LOG2,20) TITLE1,NANAL,WD(NAERO+1)
      IF (IPRTC .EQ. 0) WRITE (LOG2,40) UIM
   20 FORMAT (1H1,/40X,48HALG MODULE - COMPRESSOR DESIGN - CONTROL SECTI
     1ON , /40X,48(1H*), //10X,8HTITLE = ,18A4, /10X,39HNUMBER OF ANALYT
     2IC MEALINE BLADEROWS = ,I3, /10X,14HTHERE WILL BE ,A2,33H ENTRY TO
     3 THE AERODYNAMIC SECTION )
   40 FORMAT (A29,' - MODULE ALG ENTERED.')
C
      IF (NANAL .EQ. 0) GO TO 200
      IFILE = LOG5
      CALL OPEN (*500,LOG5,IZ(IBUF2),1)
      CALL ALGAN
      CALL CLOSE (LOG5,1)
  200 IF (NAERO .EQ. 0) GO TO 300
      IFILE = LOG5
      CALL OPEN (*500,LOG5,IZ(IBUF2),0)
      IFILE = ISCR3
      CALL OPEN (*500,ISCR3,IZ(IBUF3),1)
      CALL ALGAR
      CALL CLOSE (ISCR3,1)
      CALL CLOSE (LOG5,1)
  300 CALL CLOSE (LOG1,1)
      CALL ALGPO (ISCR3)
  400 GO TO 600
  500 CALL MESAGE(-1,IFILE,NAME)
C
  600 RETURN
      END