Apparatus and method for converting floating point number into i

Details Apparatus and method for converting floating point number into i Apparatus and method for converting floating point number into i

1998-05-08

2000-11-21

Malzahn, David H.

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

G06F 500

Patent

active

061516120

ABSTRACT:
The present invention relates to an apparatus and a method for converting the binary floating point number into a integer represented as binary numbers of fixed length, the method for converting the binary floating point number into a integer comprising: calculating an exponent difference between the floating point number as a first operand and a constant which has a fraction of `0` value and an exponent of `data sizes of the integer-1` value as a second operand, shifting the fraction of the operand having the smaller exponent as many as the exponent difference, and outputting a bigger exponent; adding the fraction of the operand having the bigger exponent and a selected fraction, wherein the a selected fraction is in case of a negative value, the shifted fraction which is complemented to one, in case of a positive value, the shifted fraction itself in response to a sign of the first operand; and outputting the bigger exponent as a final result of the exponent, outputting and rounding the added fraction in response to a control signal as the final result of the fraction.

REFERENCES:
patent: 4338675 (1982-07-01), Palmer et al.
patent: 5257215 (1993-10-01), Poon
patent: 5561615 (1996-10-01), Kuo et al.
patent: 5619198 (1997-04-01), Blackham
patent: 5764548 (1998-08-01), Keith et al.
patent: 5905663 (1999-05-01), Nash

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