Linearization of page based memory for increased performance in a software emulated central processing unit

摘要

As fast and powerful commodity processors have been developed, it has become practical to emulate on platforms built using commodity processors the proprietary legacy hardware systems of powerful older computers. High performance is often a key requirement for a system even when built using emulation software. Within the hardware of the legacy system the memory management software and paging hardware is often complex, and takes considerable code in the software emulator to emulate. If the segments of data referenced by a program running under the software emulator can be placed in contiguous linear memory, the memory management software and the work of the software emulator can be reduced to improve performance and reduce complexity of the emulated system.