A virtual memory system for the Hewlett-Packard 2100A

摘要

This paper reports on the development of a virtual memory system for the HP 2100. The major portion of the development is the group of microprograms that were written to alter the instruction and operand fetch programs. No hardware modifications to the 2100 are required to affect the conversion. Although execution speed is not a primary concern in system operation, techniques were used to keep operation as efficient as possible. Timing estimations for instruction execution are given and areas for future research are discussed.