Emulation of microprocessor instructions

摘要

A method and system (20) for emulating instructions of legacy microprocessors which execute a compiled high-ordered language (28), such as C/C++, in which the compiled code is structured such that data and instructions segments (22; 24) are segregated. In order to improve the real-time performance of the system, legacy instructions (32) are directly mapped to equivalent instructions (34) of the host processor where possible. Additional techniques may optionally be employed to further increase the real-time performance of the system. By utilizing the direct mapping of the legacy instructions to host instructions, the emulation system (20) in accordance with the present invention provides increased real-time performance for relatively modern RISC microprocessors.