Add utility program ft4code.

lib/ft8/ft8code.f90

@@ -12,7 +12,7 @@ program ft8code
   character*9 comment
   character bad*1,msgtype*18
   integer itone(NN)
-  integer*1 msgbits(77)
+  integer*1 msgbits(77),codeword(174)
 
 ! Get command-line argument(s)
   nargs=iargc()
@@ -45,6 +45,7 @@ program ft8code
      i3=-1
      n3=-1
      call genft8(msg,i3,n3,msgsent,msgbits,itone)
+     call encode174_91(msgbits,codeword)
      msgtype=""
      if(i3.eq.0) then
         if(n3.eq.0) msgtype="Free text"
@@ -75,9 +76,15 @@ program ft8code
 
   if(nmsg.eq.1) then
      write(*,1030) msgbits
-1030 format(/'Message bits: ',/77i1)
+1030 format(/'Source-encoded message, 77 bits: ',/77i1)
+     write(*,1031) codeword(78:91)
+1031 format(/'14-bit CRC: ',/14i1)
+     write(*,1032) codeword(92:174)
+1032 format(/'83 Parity bits: ',/83i1)     
      write(*,1034) itone
-1034 format(/'Channel symbols (tones):'/79i1)
+1034 format(/'Channel symbols (79 tones):'/                            &
+          '  Sync ',14x,'Data',15x,'Sync',15x,'Data',15x,'Sync'/        &
+           7i1,1x,29i1,1x,7i1,1x,29i1,1x,7i1)
   endif
 
 999 end program ft8code