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Digital Arithmetic
book

Digital Arithmetic

by Miloš D. Ercegovac, Tomás Lang
September 2003
Intermediate to advanced content levelIntermediate to advanced
709 pages
26h 51m
English
Morgan Kaufmann
Content preview from Digital Arithmetic
Combinational Multiplication with Recoding
193
4~
the first approach. Consequently, we concentrate on the radix-4 case, in which
the recoding is done anyhow to eliminate the multiple 3x.
The sequential radix-4 recoding for sign-and-magnitude presented before
has to be modified for the two's complement case. One possible modification is
to extend the sign: one bit ifn is odd and a whole radix-4 digit if it is even. Then,
as in two's complement addition, the carry-out of the extended digit vector is
discarded. However, this increases the number of cycles when n is even.
Two variations are possible to eliminate the need for the additional ...
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Publisher Resources

ISBN: 9781558607989