lookup_table

        const lookup_table = blk: {
            @setEvalBranchQuota(2500);
            const poly = reflect(algorithm.polynomial);
            var table: [256]I = undefined;
            for (&table, 0..) |*e, i| {
                var crc: I = i;
                if (algorithm.reflect_input) {
                    var j: usize = 0;
                    while (j < 8) : (j += 1) {
                        crc = (crc >> 1) ^ ((crc & 1) * poly);
                    }
                } else {
                    crc <<= @bitSizeOf(I) - 8;
                    var j: usize = 0;
                    while (j < 8) : (j += 1) {
                        crc = (crc << 1) ^ (((crc >> (@bitSizeOf(I) - 1)) & 1) * poly);
                    }
                }
                e.* = crc;
            }
            break :blk table;
        }