mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-29 15:48:38 -05:00
2e9a64aebe
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8200 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
25 lines
655 B
Fortran
25 lines
655 B
Fortran
subroutine chkcrc12a(decoded,nbadcrc)
|
|
|
|
use crc
|
|
integer*1 decoded(87)
|
|
integer*1, target:: i1Dec8BitBytes(11)
|
|
character*87 cbits
|
|
|
|
! Write decoded bits into cbits: 75-bit message plus 12-bit CRC
|
|
write(cbits,1000) decoded
|
|
1000 format(87i1)
|
|
read(cbits,1001) i1Dec8BitBytes
|
|
1001 format(11b8)
|
|
read(cbits,1002) ncrc12 !Received CRC12
|
|
1002 format(75x,b12)
|
|
|
|
i1Dec8BitBytes(10)=iand(i1Dec8BitBytes(10),128+64+32)
|
|
i1Dec8BitBytes(11)=0
|
|
icrc12=crc12(c_loc(i1Dec8BitBytes),11) !CRC12 computed from 75 msg bits
|
|
|
|
nbadcrc=1
|
|
if(ncrc12.eq.icrc12) nbadcrc=0
|
|
|
|
return
|
|
end subroutine chkcrc12a
|