Vector adder 80 also includes exception logic 82 coupled to {HEAD ~ mask unit} 90 which permits {TAIL ~ adder} 80 to perform operations upon condition and to advise mask unit 90 of arithmetic exception conditions  
permits
Vector adder 80 also includes exception logic 82 coupled to { HEAD ~ mask unit } 90 which permits { TAIL ~ adder } 80 to perform operations upon condition and to advise mask unit 90 of arithmetic exception conditions
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH