mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-26 06:08:42 -05:00
36 lines
1.0 KiB
Fortran
36 lines
1.0 KiB
Fortran
subroutine extractmessage128_90(decoded,msgreceived,ncrcflag)
|
|
use iso_c_binding, only: c_loc,c_size_t
|
|
use crc
|
|
use packjt
|
|
|
|
character*22 msgreceived
|
|
character*90 cbits
|
|
integer*1 decoded(90)
|
|
integer*1, target:: i1Dec8BitBytes(12)
|
|
integer*2 icrc13
|
|
integer*4 i4Dec6BitWords(12)
|
|
|
|
! Write decoded bits into cbits: 77-bit message plus 13-bit CRC
|
|
write(cbits,1000) decoded
|
|
1000 format(90i1)
|
|
read(cbits,1001) i1Dec8BitBytes
|
|
1001 format(12b8)
|
|
read(cbits,1002) ncrc13 !Received CRC12
|
|
1002 format(77x,b13)
|
|
|
|
i1Dec8BitBytes(10)=iand(i1Dec8BitBytes(10),128+64+32+16+8)
|
|
i1Dec8BitBytes(11:12)=0
|
|
icrc13=crc13(c_loc(i1Dec8BitBytes),12) !CRC13 computed from 77 msg bits
|
|
|
|
if(ncrc13.eq.icrc13) then !### Kludge ### ???
|
|
! CRC13 checks out --- unpack 72-bit message
|
|
read(cbits,'(12b6)') i4Dec6BitWords
|
|
call unpackmsg(i4Dec6BitWords,msgreceived,.false.,' ')
|
|
ncrcflag=1
|
|
else
|
|
msgreceived=' '
|
|
ncrcflag=-1
|
|
endif
|
|
return
|
|
end subroutine extractmessage128_90
|