{TAIL ~ The output} of the adder 12 is clocked into {HEAD ~ a latch} 14 by a system clock CLK 
{ TAIL ~ The output } of the adder 12 is clocked into { HEAD ~ a latch } 14 by a system clock CLK
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH