It is possible to modify the demonstration test bench to drive the core inputs with different data or to perform different operations.
All operations performed by the demonstration test bench to drive the core inputs are done in
the stimuli process. This process is comprehensively commented, to explain
clearly what is being done. New operations, potentially with different input data, can be
added by copying and modifying sections of this process.
The clock frequency of the core can be modified by changing the CLOCK_PERIOD
constant.