source: ResearchApps/PHY/MIMO_OFDM/CRC_table_gen.m

function CRC_Table = CRC_table_gen(CRCPolynomial, bitLen)
%Calculates table of polynomial remainders for CRC computation
%Based on example code at http://www.netrino.com/Embedded-Systems/How-To/CRC-Calculation-C-Code

if(bitLen > 32 | bitLen < 1)
    error('bitLen must be in [1,32]');
end

crc_accum = 0;

for n=0:255
    crc_accum = bitshift(n,(bitLen-8),bitLen);

    for m=0:7
        x = bitshift(crc_accum, 1, bitLen);
        if(crc_accum >= 2^(bitLen-1))
            crc_accum = bitxor(x, CRCPolynomial);
        else
            crc_accum = x;
        end
    end

    CRC_Table(n+1) = crc_accum;
end