A CAD-tool for the generation of HDL-A-Code is presented. The CAD-tool generates nonlinear dynamic behavioral and functional HDL-A-models from models on a hierarchical lower level of abstraction (such as Finite-element- or transistor-level description) or measured data. This tool supports the efficient creation of nonlinear behavioral models in HDL-A without requiring deep knowledge of this AHDL. True HDL-A code is generated in a single architecture/entity-unit resulting in a faster simulation time than connected HDL-A models. The discussion of various realistic nonlinear examples completes the presented approach.