考学祝福语
8.2.7.3 Wallace Tree Multiplication
•In effect, a “one’s
counter”: A, B, and印度爱情电影
C inputs and
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encodes them on
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outputs.
• A 1-bit full adder
(FA) provides a 3:2
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compression in the
绘本小故事number of bits.
Ex: 6×6 Multiplier(table)
Seven bits Wallace tree addition
Ex: 6×6 Wallace Multiplier
Example
斑猪
•In a 32-bit multiplier, the maximum number of partial products is 32 and the compressions are:
32 →22 →16 →12 →8 →6 →4 →3 →2
=>There are 9 adder delays in the array
1. c.f.Array multiplier (Booth-recoded) =16
固定资产处置2.Can be ud together with Booth-encoding scheme