| 摘要 |
A circuit for enhancing the performance of a random-access-memory-based memory expansion system is disclosed. Memory capacity and a control register are added to the traditional memory mapping circuit. The increased memory is utilized to store several maps simultaneously and the circuit output is then switched from one stored map to another according to data present at the control register outputs. Thus, by pre-loading the circuit with all the memory maps required by a particular program, delay caused by map changes is reduced to the time required to move data to the control register outputs.
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