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29 lines
448 B
Fortran
29 lines
448 B
Fortran
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subroutine packtext77(c13,c71)
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real*16 q
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character*13 c13,w
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character*71 c71
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character*42 c
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data c/' 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ+-./?'/
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q=0.q0
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w=adjustr(c13)
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do i=1,13
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j=index(c,w(i:i))-1
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if(j.lt.0) j=0
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q=42.q0*q + j
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enddo
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do i=71,1,-1
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c71(i:i)='0'
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n=mod(q,2.q0)
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q=q/2.q0
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if(n.eq.1) then
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c71(i:i)='1'
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q=q-0.q5
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endif
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enddo
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return
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end subroutine packtext77
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