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