Method and apparatus for an in-situ victim cache

A method and apparatus for a microprocessor with a cache that has the advantages given by a victim cache without physically having a victim cache is disclosed. In one embodiment, a victim flag may be associated with each way in a set. At eviction time, the way whose victim flag is true may be evicte...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Auld, William G, Cai, Zhong-Ning
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method and apparatus for a microprocessor with a cache that has the advantages given by a victim cache without physically having a victim cache is disclosed. In one embodiment, a victim flag may be associated with each way in a set. At eviction time, the way whose victim flag is true may be evicted. However, the victim flag may be reset to false if a superceding request arrives for the cache line in that way. Another cache line in another way may then have its victim flag made true.