1#if defined(XLF14) || defined(XLFLINUX) 2@PROCESS OPT(0) STRICT(ALL) 3#endif 4 subroutine dpssb5 (ido,l1,cc,ch,wa1,wa2,wa3,wa4) 5* 6* $Id$ 7* 8 double precision cc(ido,5,l1), ch(ido,l1,5), wa1(1), wa2(1), 9 1 wa3(1), wa4(1), ci2, ci3, ci4, ci5, cr2, cr3, cr4, cr5, 10 2 di2, di3, di4, di5, dr2, dr3, dr4, dr5, ti11, ti12, ti2, ti3, 11 3 ti4, ti5, tr11, tr12, tr2, tr3, tr4, tr5 12 data tr11 / 0.3090169943 7494742410 2293417182 81906d0/ 13 data ti11 / 0.9510565162 9515357211 6439333379 38214d0/ 14 data tr12 / -0.8090169943 7494742410 2293417182 81906d0/ 15 data ti12 / 0.5877852522 9247312916 8705954639 07277d0/ 16c 17c sin(pi/10) = .30901699.... . 18c cos(pi/10) = .95105651.... . 19c sin(pi/5 ) = .58778525.... . 20c cos(pi/5 ) = .80901699.... . 21c 22 if (ido .ne. 2) go to 102 23 do 101 k=1,l1 24 ti5 = cc(2,2,k)-cc(2,5,k) 25 ti2 = cc(2,2,k)+cc(2,5,k) 26 ti4 = cc(2,3,k)-cc(2,4,k) 27 ti3 = cc(2,3,k)+cc(2,4,k) 28 tr5 = cc(1,2,k)-cc(1,5,k) 29 tr2 = cc(1,2,k)+cc(1,5,k) 30 tr4 = cc(1,3,k)-cc(1,4,k) 31 tr3 = cc(1,3,k)+cc(1,4,k) 32 ch(1,k,1) = cc(1,1,k)+tr2+tr3 33 ch(2,k,1) = cc(2,1,k)+ti2+ti3 34 cr2 = cc(1,1,k)+tr11*tr2+tr12*tr3 35 ci2 = cc(2,1,k)+tr11*ti2+tr12*ti3 36 cr3 = cc(1,1,k)+tr12*tr2+tr11*tr3 37 ci3 = cc(2,1,k)+tr12*ti2+tr11*ti3 38 cr5 = ti11*tr5+ti12*tr4 39 ci5 = ti11*ti5+ti12*ti4 40 cr4 = ti12*tr5-ti11*tr4 41 ci4 = ti12*ti5-ti11*ti4 42 ch(1,k,2) = cr2-ci5 43 ch(1,k,5) = cr2+ci5 44 ch(2,k,2) = ci2+cr5 45 ch(2,k,3) = ci3+cr4 46 ch(1,k,3) = cr3-ci4 47 ch(1,k,4) = cr3+ci4 48 ch(2,k,4) = ci3-cr4 49 ch(2,k,5) = ci2-cr5 50 101 continue 51 return 52c 53 102 do 104 k=1,l1 54 do 103 i=2,ido,2 55 ti5 = cc(i,2,k)-cc(i,5,k) 56 ti2 = cc(i,2,k)+cc(i,5,k) 57 ti4 = cc(i,3,k)-cc(i,4,k) 58 ti3 = cc(i,3,k)+cc(i,4,k) 59 tr5 = cc(i-1,2,k)-cc(i-1,5,k) 60 tr2 = cc(i-1,2,k)+cc(i-1,5,k) 61 tr4 = cc(i-1,3,k)-cc(i-1,4,k) 62 tr3 = cc(i-1,3,k)+cc(i-1,4,k) 63 ch(i-1,k,1) = cc(i-1,1,k)+tr2+tr3 64 ch(i,k,1) = cc(i,1,k)+ti2+ti3 65 cr2 = cc(i-1,1,k)+tr11*tr2+tr12*tr3 66 ci2 = cc(i,1,k)+tr11*ti2+tr12*ti3 67 cr3 = cc(i-1,1,k)+tr12*tr2+tr11*tr3 68 ci3 = cc(i,1,k)+tr12*ti2+tr11*ti3 69 cr5 = ti11*tr5+ti12*tr4 70 ci5 = ti11*ti5+ti12*ti4 71 cr4 = ti12*tr5-ti11*tr4 72 ci4 = ti12*ti5-ti11*ti4 73 dr3 = cr3-ci4 74 dr4 = cr3+ci4 75 di3 = ci3+cr4 76 di4 = ci3-cr4 77 dr5 = cr2+ci5 78 dr2 = cr2-ci5 79 di5 = ci2-cr5 80 di2 = ci2+cr5 81 ch(i-1,k,2) = wa1(i-1)*dr2-wa1(i)*di2 82 ch(i,k,2) = wa1(i-1)*di2+wa1(i)*dr2 83 ch(i-1,k,3) = wa2(i-1)*dr3-wa2(i)*di3 84 ch(i,k,3) = wa2(i-1)*di3+wa2(i)*dr3 85 ch(i-1,k,4) = wa3(i-1)*dr4-wa3(i)*di4 86 ch(i,k,4) = wa3(i-1)*di4+wa3(i)*dr4 87 ch(i-1,k,5) = wa4(i-1)*dr5-wa4(i)*di5 88 ch(i,k,5) = wa4(i-1)*di5+wa4(i)*dr5 89 103 continue 90 104 continue 91c 92 return 93 end 94