mirror of https://github.com/saitohirga/WSJT-X.git
28 lines
769 B
Fortran
28 lines
769 B
Fortran
subroutine chkcrc10(decoded,nbadcrc)
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use crc
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integer*1 decoded(60)
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integer*1, target:: i1Dec8BitBytes(9)
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! Check the CRC
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do ibyte=1,6
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itmp=0
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do ibit=1,8
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itmp=ishft(itmp,1)+iand(1,decoded((ibyte-1)*8+ibit))
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enddo
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i1Dec8BitBytes(ibyte)=itmp
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enddo
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i1Dec8BitBytes(7)=decoded(49)*128+decoded(50)*64
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! Pack received CRC into bytes 8 and 9 for crc10_check
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i1Dec8BitBytes(8)=decoded(51)*2+decoded(52)
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i1Dec8BitBytes(9)=decoded(53)*128 + decoded(54)*64+decoded(55)*32 + &
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decoded(56)*16
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i1Dec8BitBytes(9)=i1Dec8BitBytes(9) + decoded(57)*8+decoded(58)*4 + &
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decoded(59)*2+decoded(60)*1
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nbadcrc=1
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if(crc10_check(c_loc(i1Dec8BitBytes),9)) nbadcrc=0
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return
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end subroutine chkcrc10
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