Execution circuitry for floating-point power operation

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12118332
APP PUB NO 20240094989A1
SERIAL NO

18045577

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Abstract

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Techniques are disclosed relating to dedicated power function circuitry for a floating-point power instruction. In some embodiments, execution circuitry is configured to execute a floating-point power instruction to evaluate the power function xy as 2y log2x. In some embodiments, base-2 logarithm circuitry is configured to evaluate a base-2 logarithm for a first input (e.g., log2 x) by determining coefficients for a polynomial function and evaluating the polynomial function using the determined coefficients and the first input. In some embodiments, multiplication circuitry multiplies the base-2 logarithm result by a second input to generate a multiplication result. In some embodiments, base-2 power function circuitry is configured to evaluate a base-2 power function for the multiplication result. Disclosed techniques may advantageously increase performance and reduce power consumption of floating-point power function operations with reasonable area and accuracy, relative to traditional techniques.

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Patent Owner(s)

  • APPLE INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, O-Cheng Cupertino, US 5 2
Elmalem, Segev Tel-Aviv, IL 2 0
Munshi, Aaftab A Los Gatos, US 27 393
Sazegari, Ali Los Altos, US 66 858
Soffair, Ido Tel-Aviv, IL 2 0
Zhang, Jingwei Santa Clara, US 65 584

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