1. A computer-implemented method of generating hardware description language (HDL) code for an executable model, said method comprising: storing the executable model in a memory, the executable model being a representation of a system, and including a plurality of executable components; locating in the executable model, by a first processor coupled to the memory, at least one of the plurality of executable components, where the at least one of the plurality of executable components located in the executable model: is configured to process frame-based input, where the frame-based input represents at least a two-dimensional (2D) matrix of data, and processes the at least a 2D matrix of data during execution of the executable model; and generating, by the first or a second processor, HDL code for the at least one of the plurality of executable components located in the executable model.