Simple Radix-4 Division with Operands Scaling

  • Authors:
  • M. D. Ercegovac;T. Lang

  • Affiliations:
  • -;-

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 1990

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Abstract

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.