This invention is directed primarily to a subtracting circuit for use with a floating point processor which permits {TAIL ~ high accuracy} without requiring {HEAD ~ additional guard bits} or hardware 
This invention is directed primarily to a subtracting circuit for use with a floating point processor which permits { TAIL ~ high accuracy } without requiring { HEAD ~ additional guard bits } or hardware
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH