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Implementing logarithmic and antilogarithmic operations based on piecewise linear approximation
Implementing logarithmic and antilogarithmic operations based on piecewise linear approximation
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机译:基于分段线性逼近实现对数和反对数运算
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摘要
Implementations of the disclosure provide logarithm and anti-logarithm operations on a hardware processor based on linear piecewise approximation. An example processor includes a piece wise linear log approximation circuit that receives an input of a floating-point number comprising a sign, an exponent and a mantissa. The piece wise linear log approximation circuit approximates a fractional portion of a fixed point number using a linear approximation of the mantissa of the floating-point number. The piece wise linear log approximation circuit also derives an integer from the exponent.
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