A computer program product comprising a computer useable medium having computer program logic recorded thereon for enabling a microprocessor to compile a source code program. The computer program logic includes means for enabling the processor to receive a plurality of source code instructions, to convert each of the source code instructions into one or more machine code instructions, to generate monitoring information corresponding to each of the machine code instructions, and to enable the microprocessor to output the machine code instructions and the corresponding monitoring information. The monitoring information indicates which of a plurality of functional units of a microprocessor or a microelectronic device are to be selectively activated for executing each of the machine code instructions.