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Design of a radix 4 division unit with simple selection table

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2 Author(s)
Montuschi, P. ; Dipartimento di Automatica e Inf., Politecnico di Torino, Italy ; Ciminiera, L.

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

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Computers, IEEE Transactions on  (Volume:41 ,  Issue: 12 )