{HEAD ~ The contents} of the B register is then shifted to {TAIL ~ the right} by the proper number of places so that the exponent difference between the numbers in the A and B registers is zero.  
is shifted to
{ HEAD ~ The contents } of the B register is then shifted to { TAIL ~ the right } by the proper number of places so that the exponent difference between the numbers in the A and B registers is zero .
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH