This article presents a novel design flow called MOUSE for the effective development of digital signal processing systems in terms of development time, performance and power consumption. It uses a model in high-level language like Matlab as a starting point. Utilizing techniques originating from supercomputing and dynamical compilation, these models can be translated to assembly code for specialized DSP processors of the CATS family. An implementation of terrestial digital video broadcast (DVB-T) serves as an example.