DSP for Embedded and Real-Time Systems

Chapter 10

Optimizing DSP Software – High-level Languages and Programming Models

Stephen Dew

Chapter Outline

Assembly language

Advantages and disadvantages

C Programming language with intrinsics and pragmas

Standard C integral types

FIR in C

Intrinsic functions

Fractional types and saturation

Floating point

Custom types

Pragmas

Function pragmas

Statement pragmas

Variable pragmas

Embedded C

C++ for embedded systems

Auto-vectorizing compiler technology

Matlab, Labview and FFTW-like generator suites

Matlab and native compiled code

Native code to Matlab and silicon emulation

Assembly language

In the early days of DSP, software was exclusively written in assembly language. This was due to the slow nature of DSPs and the need to make productive use ...