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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
264 c MAPTER ~ Division by Digit Recurrence
The sign can also be detected using the
PS
and
PC
forms instead of
WS
and
WC:
ifps
+ pc ~ O,
then
ws + wc
> 0, and ifps
+ pc
> 0, then
ws + wc ~ O.
Therefore,
I
sign -- (p o ~ c o) zero
5.37
where c0 is the carry into the most-significant position (sign position).
The carry is obtained as
co -- g~l,bl = Gout
by a tree of P, G cells, which
also produces
Pout - P ll,bl
resulting in the following: 9
zero - p o Pout
5.38
sign -- (p o 9 G out) zero'
5.39
The implementation is shown in Figure 5.5(a).
Radix-2 Division with Residual in Carry-Save Form
The algorithm is summarized ...
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Publisher Resources

ISBN: 9781558607989