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Simple Radix-4 Division with Operands Scaling
September 1990 (vol. 39 no. 9)
pp. 1204-1208

A radix-4 division algorithm with operands scaling is proposed. The algorithm uses a recurrence with redundant addition (carry-save or signed-digit) and combines simple scaling with a quotient-selection function that depends only on the estimate of the partial remainder and is independent of the divisor. The scheme results in a significant speedup with respect to both the radix-2 and radix-4 without scaling.

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Index Terms:
operands scaling; radix-4 division; recurrence; redundant addition; quotient-selection function; partial remainder; digital arithmetic.
M.D. Ercegovac, T. Lang, "Simple Radix-4 Division with Operands Scaling," IEEE Transactions on Computers, vol. 39, no. 9, pp. 1204-1208, Sept. 1990, doi:10.1109/12.57060
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