{HEAD ~ 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 {TAIL ~ a region} of the output mask from the mask generator circuit 
{ HEAD ~ 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 { TAIL ~ a region } of the output mask from the mask generator circuit
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