In {HEAD ~ the illustrated embodiment}, {TAIL ~ each submask} in table 706 has seven bits corresponding, respectively, to the seven ports of exit 634 646 
In { HEAD ~ the illustrated embodiment } , { TAIL ~ each submask } in table 706 has seven bits corresponding , respectively , to the seven ports of exit 634 646
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH