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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
Quotient-Digit Selection Function
305
EXAHPLR 5.3
2. By using the eight bits of the four most-significant positions of the
carry-save representation of 2w[j] as inputs to the combinational
network, as shown in Figure 5.30(b).
Since this combinational network is relatively simple, we use this second
scheme to obtain a faster implementation. A possible implementation in which
the digit qj+l is represented in sign-and-magnitude by
(qs,
qm)
is as follows:
qm : (P-IPOPl) r
5.110
qs
= P-2 G (g-1 +
P-lgo at- P-lPogl)
where
Pi
-- ci ~ .-r i
gi
"- Ci " S i
and (c-2, c-1, co, c 1), (s -2, s -1, s o, s 1) are the carry and sum components ...
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Publisher Resources

ISBN: 9781558607989