作者: Philip Broughton
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摘要: A cache store (10) is provided in conjunction with a main (2). Each location of the has changed bit (CH). list (4) maintained addresses those locations which have been modified. When becomes full, entry at head read out and corresponding data item transferred from to Thus, there are never more than limited number items awaiting transfer. To clear all modified items, each turn The system reduces amount traffic between (2) hence improves efficiency.