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88 lines
3.0 KiB
Fortran
88 lines
3.0 KiB
Fortran
subroutine morse(msg,idat,n)
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! Convert ascii message to a Morse code bit string.
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! Dash = 3 dots
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! Space between dots, dashes = 1 dot
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! Space between letters = 3 dots
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! Space between words = 7 dots
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character*(*) msg
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integer idat(250)
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integer*1 ic(21,38)
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data ic/ &
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1,1,1,0,1,1,1,0,1,1,1,0,1,1,1,0,1,1,1,0,20, &
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1,0,1,1,1,0,1,1,1,0,1,1,1,0,1,1,1,0,0,0,18, &
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1,0,1,0,1,1,1,0,1,1,1,0,1,1,1,0,0,0,0,0,16, &
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1,0,1,0,1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,14, &
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1,0,1,0,1,0,1,0,1,1,1,0,0,0,0,0,0,0,0,0,12, &
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1,0,1,0,1,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,10, &
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1,1,1,0,1,0,1,0,1,0,1,0,0,0,0,0,0,0,0,0,12, &
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1,1,1,0,1,1,1,0,1,0,1,0,1,0,0,0,0,0,0,0,14, &
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1,1,1,0,1,1,1,0,1,1,1,0,1,0,1,0,0,0,0,0,16, &
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1,1,1,0,1,1,1,0,1,1,1,0,1,1,1,0,1,0,0,0,18, &
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1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 6, &
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1,1,1,0,1,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,10, &
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1,1,1,0,1,0,1,1,1,0,1,0,0,0,0,0,0,0,0,0,12, &
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1,1,1,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, 8, &
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1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 2, &
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1,0,1,0,1,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,10, &
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1,1,1,0,1,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,10, &
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1,0,1,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, 8, &
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1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 4, &
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1,0,1,1,1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,14, &
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1,1,1,0,1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,10, &
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1,0,1,1,1,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,10, &
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1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0, 8, &
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1,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 6, &
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1,1,1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,12, &
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1,0,1,1,1,0,1,1,1,0,1,0,0,0,0,0,0,0,0,0,12, &
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1,1,1,0,1,1,1,0,1,0,1,1,1,0,0,0,0,0,0,0,14, &
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1,0,1,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, 8, &
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1,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 6, &
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1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 4, &
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1,0,1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0, 8, &
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1,0,1,0,1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,10, &
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1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,10, &
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1,1,1,0,1,0,1,0,1,1,1,0,0,0,0,0,0,0,0,0,12, &
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1,1,1,0,1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,14, &
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1,1,1,0,1,1,1,0,1,0,1,0,0,0,0,0,0,0,0,0,12, &
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1,1,1,0,1,0,1,0,1,1,1,0,1,0,0,0,0,0,0,0,14, &
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 2/ !Incremental word space
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save
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msglen=len(msg)
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idat=0
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n=6
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do k=1,msglen
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jj=ichar(msg(k:k))
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if(jj.ge.97 .and. jj.le.122) jj=jj-32 !Convert lower to upper case
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if(jj.ge.48 .and. jj.le.57) j=jj-48 !Numbers
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if(jj.ge.65 .and. jj.le.90) j=jj-55 !Letters
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if(jj.eq.47) j=36 !Slash (/)
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if(jj.eq.32) j=37 !Word space
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j=j+1
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! Insert this character
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nmax=ic(21,j)
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if (n + nmax + 4 .gt. size (idat)) exit
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do i=1,nmax
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n=n+1
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idat(n)=ic(i,j)
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enddo
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! Insert character space of 2 dit lengths:
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n=n+1
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idat(n)=0
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n=n+1
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idat(n)=0
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enddo
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! Insert word space at end of message
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do j=1,4
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n=n+1
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idat(n)=0
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enddo
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return
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end subroutine morse
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