The AMD LogiCORE IP FFT has a bit-accurate C model for 64-bit Linux and 64-bit Windows platforms. The model has an interface consisting of a set of C functions, which resides in a dynamic link library (shared library). Full details of the interface are given in FFT C Model Interface. An example piece of C++ code showing how to call the model is provided. The model is also available as a MATLAB software MEX function for seamless MATLAB software integration.
The model is bit accurate but not cycle accurate, so it produces exactly the same output data as the core on a frame-by-frame basis. However, it does not model the core latency or its interface signals. The C model is an optional output of the AMD Vivado™ Design Suite. For information about generating IP source outputs, see the Vivado Design Suite User Guide: Designing with IP (UG896).