Boots – shoes – and leggings
Patent
1987-03-19
1989-03-14
Malzahn, David H.
Boots, shoes, and leggings
G06F 752
Patent
active
048130087
ABSTRACT:
A Pi generator receives the multiplier data Y and produces the Pi on the basis of the data Y2i, Y2i+1, and Y2i+2 of three continuous bits of the multiplier data Y (in which, it is defined that Pi=Y2i+Y2i+1-2.multidot.Y2i+2, Pi=Y2i+Y2i+1-2.multidot.Y2i+2' and Y0=0, and i=0, 1, . . . , n/2-1, and Yj is the bit data of the jth bit of the multiplier Y). A partial-product generator receives the Pi from the Pi generator and a multiplicand X, and obtains the partial products X.multidot.Pi of the multiplicand X and the Pi. A partial-product adding circuit weights 2.sup.2i to the partial products X.multidot.Pi derived by the partial-product generator, and adds the resultant data, thereby producing the negative product (-X.multidot.Y) of the multiplicand X and multiplier Y.
REFERENCES:
patent: 3153938 (1979-05-01), Ghest et al.
patent: 4238833 (1980-12-01), Ghest et al.
patent: 4546446 (1985-10-01), Machida
patent: 4575812 (1986-03-01), Kloker et al.
Rubinfield, "A Proof of the Modified Booth's Algorithm for Multiplication" IEEE Trans. on Computers, Oct. '75, pp. 1014-1015.
Beraud et al., "Parallel Multiplier" IBM Tech. Disclosure Bulletin, vol. 24, No. 11B, Apr. '82, pp. 6090-6092.
Shigehara Hiroshi
Shiraishi Mikio
Sugi Nobuo
Watanabe Yasuhiro
Kabushiki Kaisha Toshiba
Malzahn David H.
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