The bit constant is truncated or padded on the right to the byte length of the binary field. The padding character is B'00000000' (all bits equal to 0). Note that the padded bytes are compared to the excess bytes in the binary field.

Recommendation: To ensure that comparison of the padded bytes to the excess bytes in the binary field does not cause unwanted results, shorten the field length to eliminate the padding characters, or increase the length of the bit constant to specify the exact test pattern you want.