Apparatus and method of performing product-sum operation

Details Apparatus and method of performing product-sum operation Apparatus and method of performing product-sum operation

2005-05-17

2005-05-17

Ngo, Chuong Dinh (Department: 2124)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

06895423

ABSTRACT:
To perform a product-sum operation by adding third data to a product of first data and second data, a floating point multiplier first multiplies the first data by the second data, and a bit string representing a fixed-point part in the multiplication result is divided into a portion representing more significant digits in the fixed-point part and a portion representing less significant digits in the fixed-point part. Then, a floating point adder first adds less significant multiplication result data having a bit string representing the less significant digits as a fixed-point part to the third data, and then adds the addition result to more significant multiplication result data having a bit string representing the more significant digits as a fixed-point part. A rounding process is performed on the two addition results to obtain a result of the product-sum operation.

REFERENCES:
patent: 4754421 (1988-06-01), Bosshart
patent: 5182723 (1993-01-01), Kamimura
patent: 5241493 (1993-08-01), Chu et al.
patent: 5657262 (1997-08-01), Curtet
patent: 5867413 (1999-02-01), Yeh
patent: 5880984 (1999-03-01), Burchfiel et al.
patent: 62-80764 (1987-04-01), None
patent: 4-140827 (1992-05-01), None
patent: 6-89300 (1994-03-01), None
patent: 9-146924 (1997-06-01), None
patent: 10-207693 (1998-08-01), None

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