Multiplying method and apparatus

Details Multiplying method and apparatus Multiplying method and apparatus

1997-04-01

1999-06-01

Malzahn, David H.

Boots, shoes, and leggings

708497, 708503, G06F 750

Patent

active

059093854

ABSTRACT:
A multiplying apparatus includes a Booth decoder for performing a second-order Booth decode on a multiplier, a Booth selector for generating a partial product except the two high-order digits from the output of the decoder and a multiplicand, a partial product corrector for correcting the two high-order digits of the partial product based on the multiplier and the multiplicand and outputting the corrected result, for cancelling a sign corrected portion of the negative partial product, and a carry save adder for being inputted with the outputs of the Booth selector and the outputs of the corrector and adding them.

REFERENCES:
patent: 4791601 (1988-12-01), Tanaka
patent: 5038315 (1991-08-01), Rao
patent: 5251167 (1993-10-01), Simmonds et al.
patent: 5506799 (1996-04-01), Nakao
patent: 5561810 (1996-10-01), Ohtomo
patent: 5696711 (1997-12-01), Makineni
patent: 5761103 (1998-06-01), Oakland et al.
Patterson et al Computer Architecture A Quantitative Approach 1990 pp. A42-A44.

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