Branch target preloading using a multiplexer and hash circuit to reduce incorrect branch predictions

Branch target preloading using a multiplexer and hash circuit to reduce incorrect branch predictions

A system provides complex branch execution hardware and a hardware-based Multiplexer (MUX) to multiplex a fetch address of a future branch and a preloaded branch fetch address to create an index hash value that is used to index a branch target prediction table for execution by a processor core, in o...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Venton Todd A, Alexander Gregory W, Miller, II Milton D, Blanchard Anton, Wright Kenneth L
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:A system provides complex branch execution hardware and a hardware-based Multiplexer (MUX) to multiplex a fetch address of a future branch and a preloaded branch fetch address to create an index hash value that is used to index a branch target prediction table for execution by a processor core, in order to reduce branch mis-prediction by preloading.