{TAIL ~ Structure} is provided for merging the fixed sized bit field and the variable sized bit field into {HEAD ~ a continuous bit field} 
{ TAIL ~ Structure } is provided for merging the fixed sized bit field and the variable sized bit field into { HEAD ~ a continuous bit field }
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD