NORMALIZER FOR PERFORMING NORMALIZATION AND DENORMALIZATION ON FLOATING-POINT DATA AND OPERATION CIRCUIT INCLUDING THE SAME
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United States of America Patent
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Issued Date -
Jul 20, 2023
app pub date -
Jun 10, 2022
filing date -
Jan 19, 2022
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Abstract
A normalizer receives input data including first exponent data and first mantissa data and generates normalized output data. The normalizer includes a mantissa alignment circuit, a “1” search circuit, an exponent addition circuit, a normalization circuit. The mantissa alignment circuit outputs second mantissa data including a binary point shifted by one bit to the left in comparison to a binary point of the first mantissa data. The “1” search circuit searches for an uppermost bit position of a leading “1” in the second mantissa data to output shift data. The exponent addition circuit performs an addition operation on the shift data and the first exponent data and configured to perform a “+1” operation on a result of the addition operation to output addition data. The normalization circuit performs normalization when the addition data corresponds to a normalization condition, the normalization being performed by outputting the addition data as exponent data of the output data and outputting result data that is obtained by shifting the second mantissa data by the number of bits that correspond to an absolute value of the shift data as mantissa data of the output data.
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