Product adder for perfoming multiplication of floating point dat

Details Product adder for perfoming multiplication of floating point dat Product adder for perfoming multiplication of floating point dat

1991-09-09

1993-02-09

Malzahn, David H.

Boots, shoes, and leggings

3647505, G06F 750, G06F 752

Patent

active

051857138

ABSTRACT:
A product adder includes a data input memory, a multiplier, a shifter, a full adder, an accumulator, and a normalizing circuit. The memory stores two floating-point data. The multiplier performs multiplication of the floating-point data stored in the memory. The shifter converts the product of the multiplier into fixed-point data. The full adder performs cumulative addition of the fixed-point data output from the shifter. The accumulator holds output data from the full adder. The normalizing circuit converts the output data from the accumulator into floating-point data and outputting the converted data.

REFERENCES:
patent: 4683547 (1987-07-01), DeGroot
patent: 4841467 (1989-06-01), Ho et al.
patent: 4866652 (1989-09-01), Chu et al.
patent: 4991131 (1991-02-01), Yeh et al.
patent: 4999802 (1991-03-01), Cocanougher et al.
Bernd Wolgast and Manfred Haverland, Schneller Gleitkommarechner fur Vektoroperationen, Elektronik 5, Mar. 6, 1987, pp. 91-100.

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