Patent ID: 9128790
Filing Date: 2015-09-08
Classification: G06F

Abstract:
1. A method performed by a vector-based digital signal processor for evaluating a non-linear exponential function for an input vector, x, said method comprising: obtaining one or more software instructions; in response to a predefined software instruction keyword for said non-linear exponential function, invoking at least one hardware functional unit that implements said non-linear exponential function to perform the following steps for each component of said input vector, x, to produce a corresponding component of an output vector in hardware, wherein said input vector, x, comprises a plurality of numbers and wherein said vector-based digital signal processor processes said plurality of numbers substantially simultaneously: decomposing each component of said input vector, x, to an integer part, N, a first fractional part, q computing 2 obtaining 2 evaluating said exponential function for said input vector, x, by multiplying 2