WSJT-X/morse.f

91 lines
3.1 KiB
Fortran

subroutine morse(msg,idat,n)
C Convert ascii message to a Morse code bit string.
C Dash = 3 dots
C Space between dots, dashes = 1 dot
C Space between letters = 3 dots
C Space between words = 7 dots
character*22 msg
integer*1 idat(460)
integer*1 ic(21,38)
data ic/
+ 1,1,1,0,1,1,1,0,1,1,1,0,1,1,1,0,1,1,1,0,20,
+ 1,0,1,1,1,0,1,1,1,0,1,1,1,0,1,1,1,0,0,0,18,
+ 1,0,1,0,1,1,1,0,1,1,1,0,1,1,1,0,0,0,0,0,16,
+ 1,0,1,0,1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,14,
+ 1,0,1,0,1,0,1,0,1,1,1,0,0,0,0,0,0,0,0,0,12,
+ 1,0,1,0,1,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,10,
+ 1,1,1,0,1,0,1,0,1,0,1,0,0,0,0,0,0,0,0,0,12,
+ 1,1,1,0,1,1,1,0,1,0,1,0,1,0,0,0,0,0,0,0,14,
+ 1,1,1,0,1,1,1,0,1,1,1,0,1,0,1,0,0,0,0,0,16,
+ 1,1,1,0,1,1,1,0,1,1,1,0,1,1,1,0,1,0,0,0,18,
+ 1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 6,
+ 1,1,1,0,1,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,10,
+ 1,1,1,0,1,0,1,1,1,0,1,0,0,0,0,0,0,0,0,0,12,
+ 1,1,1,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, 8,
+ 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 2,
+ 1,0,1,0,1,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,10,
+ 1,1,1,0,1,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,10,
+ 1,0,1,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, 8,
+ 1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 4,
+ 1,0,1,1,1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,14,
+ 1,1,1,0,1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,10,
+ 1,0,1,1,1,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,10,
+ 1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0, 8,
+ 1,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 6,
+ 1,1,1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,12,
+ 1,0,1,1,1,0,1,1,1,0,1,0,0,0,0,0,0,0,0,0,12,
+ 1,1,1,0,1,1,1,0,1,0,1,1,1,0,0,0,0,0,0,0,14,
+ 1,0,1,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, 8,
+ 1,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 6,
+ 1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 4,
+ 1,0,1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0, 8,
+ 1,0,1,0,1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,10,
+ 1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,10,
+ 1,1,1,0,1,0,1,0,1,1,1,0,0,0,0,0,0,0,0,0,12,
+ 1,1,1,0,1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,14,
+ 1,1,1,0,1,1,1,0,1,0,1,0,0,0,0,0,0,0,0,0,12,
+ 1,1,1,0,1,0,1,0,1,1,1,0,1,0,0,0,0,0,0,0,14,
+ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 2/ !Incremental word space
save
C Find length of message
do i=22,1,-1
if(msg(i:i).ne.' ') go to 1
enddo
1 msglen=i
n=0
do k=1,msglen
jj=ichar(msg(k:k))
if(jj.ge.97 .and. jj.le.122) jj=jj-32 !Convert lower to upper case
if(jj.ge.48 .and. jj.le.57) j=jj-48 !Numbers
if(jj.ge.65 .and. jj.le.90) j=jj-55 !Letters
if(jj.eq.47) j=36 !Slash (/)
if(jj.eq.32) j=37 !Word space
j=j+1
C Insert this character
nmax=ic(21,j)
do i=1,nmax
n=n+1
idat(n)=ic(i,j)
enddo
C Insert character space of 2 dit lengths:
n=n+1
idat(n)=0
n=n+1
idat(n)=0
enddo
C Insert word space at end of message
do j=1,4
n=n+1
idat(n)=0
enddo
return
end