Vector adder 80 performs integer and floating point add or subtract operations on {HEAD ~ two 64 bit words} supplied from the vector register file 35 via RD PORT3 and {TAIL ~ RD PORT4} 
supplied via
Vector adder 80 performs integer and floating point add or subtract operations on { HEAD ~ two 64 bit words } supplied from the vector register file 35 via RD PORT3 and { TAIL ~ RD PORT4 }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL