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An Autoscale Residue Multiplier

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2 Author(s)
Taylor, F.J. ; Department of Electrical and Computer Engineering, University of Cincinnati ; Huang, C.H.

Dynamic range overflow is a serious problem in residue arithmetic systems. Contemporary overflow management schemes rely on inefficient scaling operations. In this correspondence a residue scaler is architectured which inhibits dynamic range overflow. The system uses the popular three moduli set {2n-1, 2n, 2n + 1}. Using a 4K memory model, practical 12-and 18-bit autoscalers are configured. An error model for the derived residue arithmetic unit is also derived and experimentally verified.

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Computers, IEEE Transactions on  (Volume:C-31 ,  Issue: 4 )