1 !CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
5 ! Authors: Paul N. Swarztrauber and Richard A. Valent
7 ! $Id: c1f4kb.f,v 1.2 2004/06/15 21:08:32 rodney Exp $
9 !CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
11 SUBROUTINE C1F4KB (IDO,L1,NA,CC,IN1,CH,IN2,WA)
12 REAL CC(IN1,L1,IDO,4),CH(IN2,L1,4,IDO),WA(IDO,3,2)
14 ! FFTPACK 5.0 auxiliary routine
16 IF (IDO.GT.1 .OR. NA.EQ.1) GO TO 102
18 TI1 = CC(2,K,1,1)-CC(2,K,1,3)
19 TI2 = CC(2,K,1,1)+CC(2,K,1,3)
20 TR4 = CC(2,K,1,4)-CC(2,K,1,2)
21 TI3 = CC(2,K,1,2)+CC(2,K,1,4)
22 TR1 = CC(1,K,1,1)-CC(1,K,1,3)
23 TR2 = CC(1,K,1,1)+CC(1,K,1,3)
24 TI4 = CC(1,K,1,2)-CC(1,K,1,4)
25 TR3 = CC(1,K,1,2)+CC(1,K,1,4)
37 TI1 = CC(2,K,1,1)-CC(2,K,1,3)
38 TI2 = CC(2,K,1,1)+CC(2,K,1,3)
39 TR4 = CC(2,K,1,4)-CC(2,K,1,2)
40 TI3 = CC(2,K,1,2)+CC(2,K,1,4)
41 TR1 = CC(1,K,1,1)-CC(1,K,1,3)
42 TR2 = CC(1,K,1,1)+CC(1,K,1,3)
43 TI4 = CC(1,K,1,2)-CC(1,K,1,4)
44 TR3 = CC(1,K,1,2)+CC(1,K,1,4)
57 TI1 = CC(2,K,I,1)-CC(2,K,I,3)
58 TI2 = CC(2,K,I,1)+CC(2,K,I,3)
59 TI3 = CC(2,K,I,2)+CC(2,K,I,4)
60 TR4 = CC(2,K,I,4)-CC(2,K,I,2)
61 TR1 = CC(1,K,I,1)-CC(1,K,I,3)
62 TR2 = CC(1,K,I,1)+CC(1,K,I,3)
63 TI4 = CC(1,K,I,2)-CC(1,K,I,4)
64 TR3 = CC(1,K,I,2)+CC(1,K,I,4)
73 CH(1,K,2,I) = WA(I,1,1)*CR2-WA(I,1,2)*CI2
74 CH(2,K,2,I) = WA(I,1,1)*CI2+WA(I,1,2)*CR2
75 CH(1,K,3,I) = WA(I,2,1)*CR3-WA(I,2,2)*CI3
76 CH(2,K,3,I) = WA(I,2,1)*CI3+WA(I,2,2)*CR3
77 CH(1,K,4,I) = WA(I,3,1)*CR4-WA(I,3,2)*CI4
78 CH(2,K,4,I) = WA(I,3,1)*CI4+WA(I,3,2)*CR4