Briefly, example methods, apparatuses, and/or articles of manufacture are disclosed that may be implemented, in whole or in part, using one or more processing devices to develop compilers and microcode for generation of runtime images for secure execution according to an instruction set architecture (ISA) on a computing device. For example, a co-development of a paired compiler and microcode may obscure how such a paired compiler and microcode are to express program instructions into binary runtime image.