A mask generator circuit includes {TAIL ~ at least first and second mask generator circuits} coupled to receive most significant and least significant sections of the pointer and to generate masks therefrom, and a plurality of {HEAD ~ circuits} each configured to generate a region of the output mask from the mask generator circuit 
A mask generator circuit includes { TAIL ~ at least first and second mask generator circuits } coupled to receive most significant and least significant sections of the pointer and to generate masks therefrom , and a plurality of { HEAD ~ circuits } each configured to generate a region of the output mask from the mask generator circuit
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH 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 OTH OTH