System and apparatus for partially flushing cache memory

作者: Dan S. Mudgett , Victor F. Andrade , Saba Rahman

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摘要: A computer system is disclosed for selectively invalidating the contents of cache memory in response to removal, modification, or disabling resources, such as example, an external device. The includes interface unit which defines address window particular resource. implemented through use a lower register and upper register, are loaded enable signal. An comparator compares each tag with value, value. If falls within window, it flushed by generation appropriate control In alternative embodiment, present invention can be software instructions microcode. As yet another alternative, comparing value stored cache.