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