Update to fixed-point basic operators
The present document covers the following topics:
1) Assessment of the gaps between modern processors and the existing set of basic operators (STL2009) [6].
2) Proposal of an extended set of operators addressing modern DSP architectures as an extension to STL2009.
3) Assessment of merits of an alternative EVS implementation using extended STL2009 Basic Operators.
4) Proposal for validation of an alternative EVS implementation using extended STL2009 Basic Operators.