!CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
!                                                                       
!   FFTPACK 5.0                                                         
!                                                                       
!   Authors:  Paul N. Swarztrauber and Richard A. Valent                
!                                                                       
!   $Id: cmfm1f.f,v 1.2 2004/06/15 21:08:32 rodney Exp $                
!                                                                       
!CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
                                                                        
      SUBROUTINE CMFM1F (LOT,JUMP,N,INC,C,CH,WA,FNF,FAC) 
      COMPLEX       C(*) 
      REAL       CH(*),     WA(*),      FAC(*) 
!                                                                       
! FFTPACK 5.0 auxiliary routine                                         
!                                                                       
      NF = FNF 
      NA = 0 
      L1 = 1 
      IW = 1 
      DO 125 K1=1,NF 
         IP = FAC(K1) 
         L2 = IP*L1 
         IDO = N/L2 
         LID = L1*IDO 
         NBR = 1+NA+2*MIN(IP-2,4) 
         GO TO (52,62,53,63,54,64,55,65,56,66),NBR 
   52    CALL CMF2KF (LOT,IDO,L1,NA,C,JUMP,INC,CH,1,LOT,WA(IW)) 
         GO TO 120 
   62    CALL CMF2KF (LOT,IDO,L1,NA,CH,1,LOT,C,JUMP,INC,WA(IW)) 
         GO TO 120 
   53    CALL CMF3KF (LOT,IDO,L1,NA,C,JUMP,INC,CH,1,LOT,WA(IW)) 
         GO TO 120 
   63    CALL CMF3KF (LOT,IDO,L1,NA,CH,1,LOT,C,JUMP,INC,WA(IW)) 
         GO TO 120 
   54    CALL CMF4KF (LOT,IDO,L1,NA,C,JUMP,INC,CH,1,LOT,WA(IW)) 
         GO TO 120 
   64    CALL CMF4KF (LOT,IDO,L1,NA,CH,1,LOT,C,JUMP,INC,WA(IW)) 
         GO TO 120 
   55    CALL CMF5KF (LOT,IDO,L1,NA,C,JUMP,INC,CH,1,LOT,WA(IW)) 
         GO TO 120 
   65    CALL CMF5KF (LOT,IDO,L1,NA,CH,1,LOT,C,JUMP,INC,WA(IW)) 
         GO TO 120 
   56    CALL CMFGKF (LOT,IDO,IP,L1,LID,NA,C,C,JUMP,INC,CH,CH,          &
     &     1,LOT,WA(IW))                                                
         GO TO 120 
   66    CALL CMFGKF (LOT,IDO,IP,L1,LID,NA,CH,CH,1,LOT,C,C,             &
     &     JUMP,INC,WA(IW))                                             
  120    L1 = L2 
         IW = IW+(IP-1)*(IDO+IDO) 
         IF(IP .LE. 5) NA = 1-NA 
  125 END DO 
      RETURN 
      END