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<p>A radix 4 division architecture is presented which partially overlaps the updating of the remainder with the digit selection procedure. It is obtained by separating the radix 4 digit selection process into two concurrent substeps. The proposed unit requires a simple selection table and involves a small extra expense for the additional hardware compared to the usual radix 4 division units. Four possible implementations are derived from the general model, with different types of substeps. The high level evaluation shows that the proposed architectures offer an efficient alternative.</p>
remainder updating; radix 4 division unit; selection table; radix 4 division architecture; digit selection; concurrent substeps; digital arithmetic; dividing circuits; number theory.

P. Montuschi and L. Ciminiera, "Design of a Radix 4 Division Unit with Simple Selection Table," in IEEE Transactions on Computers, vol. 41, no. , pp. 1606-1611, 1992.
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