A mask generator circuit includes 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 circuits each configured to generate a region of {TAIL ~ the output mask} from {HEAD ~ the mask generator circuit} 
A mask generator circuit includes 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 circuits each configured to generate a region of { TAIL ~ the output mask } from { HEAD ~ the mask generator circuit }
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