EFFICIENT WAY TO CANCEL SPECULATIVE 'SOURCE READY' IN SCHEDULER FOR DIRECT AND NESTED DEPENDENT INSTRUCTIONS

EFFICIENT WAY TO CANCEL SPECULATIVE 'SOURCE READY' IN SCHEDULER FOR DIRECT AND NESTED DEPENDENT INSTRUCTIONS

A method and apparatus for simultaneously canceling a dependent instruction and a nested dependent instruction when a cancel timer of a source of the dependent instruction and a cancel timer of a source of the nested dependent instruction expire and a producer instruction speculatively waking up the...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: DUBEY SANDEEP KUMAR, IYENGAR RAVI, BURGESS BRADLEY GENE
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:A method and apparatus for simultaneously canceling a dependent instruction and a nested dependent instruction when a cancel timer of a source of the dependent instruction and a cancel timer of a source of the nested dependent instruction expire and a producer instruction speculatively waking up the dependent instruction is canceled.