1. A method for tracking instances of a testcase execution event within a hardware description language (HDL) model using a simulation control program, said method comprising: generating a design entity list within said HDL model, wherein said design entity list identifies all design entities instantiated within said HDL model; and dynamically loading at least one instrumentation code module into said simulation control program, wherein said at least one instrumentation code module generates and processes testcase execution events associated with at least one of said identified design entities.