Patent ID: 9223752
Filing Date: 2015-12-29
Classification: G06F

Abstract:
1. A method performed by a vector-based digital signal processor for evaluating a non-linear function for a vector, x, comprising: in response to a predefined software instruction keyword for said non-linear function, performing the following steps, wherein said vector, x, comprises a plurality of numbers and wherein said vector-based digital signal processor processes said plurality of numbers substantially simultaneously, wherein said predefined software instruction keyword for said non-linear function is part of an instruction set of said vector-based digital signal processor: invoking at least one non-linear hardware functional unit that implements said non-linear function, wherein said at least one non-linear hardware functional unit is configured to perform the following steps for each component of said vector, x, using hardware: obtaining at least two sets of values from at least one look-up table for said non-linear function that are near components of said vector, x, wherein said at least one look-up table is in a random access memory (RAM) of said vector-based digital signal processor; and interpolating said at least two obtained sets of values to obtain a vector result, y, using a factorized polynomial interpolation.