Both program related exceptions and hardware errors are detected and, without being corrected by the hardware, flow down {TAIL ~ the pipeline} to {HEAD ~ a trap unit} where they are prioritized and handled via software 
Both program related exceptions and hardware errors are detected and , without being corrected by the hardware , flow down { TAIL ~ the pipeline } to { HEAD ~ a trap unit } where they are prioritized and handled via software
OTH OTH 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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH