Abstract: A multi-module interpreter comprises a first module configured to provide execution functions for executing a computer method, a second module, logically coupled to said first module, configured to execute the computer method, and an interface configured to facilitate transfer of control among the first and second modules. The multi-module interpreter is advantageous because it provides execution functions for executing compiled native machine code without necessarily requiring such functions to be encoded into the machine code.

Abstract: Byte code instructions encoding a computer method typically make use of a stack frame having an (implicit) stack pointer which points to locations on the stack frame for obtaining or storing data. Thus, the instructions typically do not contain an explicit encoding of locations on the stack frame for obtaining or storing data. The stack pointer typically adjusts itself automatically as data are moved on and off the stack frame during execution or simulation of a method.