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