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Hybrid number representations with bounded carry propagation chains

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3 Author(s)
Phatak, D.S. ; Dept. of Electr. & Comput. Eng., Massachusetts Univ., Amherst, MA, USA ; Koren, I. ; Choi, H.

A novel, hybrid number representation is proposed. It includes the two's complement representation and the signed-digit representation as special cases. Such a hybrid representation is capable of bounding the maximum length of carry propagation chains during addition. Thus, one can select a specific hybrid number representation that limits the maximum length of all the carry propagation chains to any desired value between one and the entire word length. The framework reveals a continuum of number representations between the two extremes of two's complement and signed-digit number systems and allows a unified performance analysis of the entire spectrum of adders based on the representation selected

Published in:
Computer Design: VLSI in Computers and Processors, 1993. ICCD '93. Proceedings., 1993 IEEE International Conference on

Date of Conference: 3-6 Oct 1993

Page(s):
272 - 275
Meeting Date :
03 Oct 1993-06 Oct 1993
Print ISBN:
0-8186-4230-0
INSPEC Accession Number:
4955881
Conference Location :
Cambridge, MA
Digital Object Identifier :
10.1109/ICCD.1993.393367
Product Type:
Conference Publications

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