Operand fetching control as a function of branch confidence

Operand fetching control as a function of branch confidence

Data operand fetching control includes calculating a summation weight value for each instruction in a pipeline, the summation weight value calculated as a function of branch uncertainty and a pendency in which the instruction resides in the pipeline relative to other instructions in the pipeline. Th...

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Bibliographische Detailangaben
Hauptverfasser: RECKTENWALD MARTIN, KRUMM BARRY W, PRASKY BRIAN R, SHUM CHUNG-LUNG K, WEINBERG JOSHUA M, JACOBI CHRISTIAN, WEBB CHARLES F
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Zusammenfassung:Data operand fetching control includes calculating a summation weight value for each instruction in a pipeline, the summation weight value calculated as a function of branch uncertainty and a pendency in which the instruction resides in the pipeline relative to other instructions in the pipeline. The data operand fetching control also includes mapping the summation weight value of a selected instruction that is attempting to access system memory to a memory access control. Each memory access control specifies a manner of handling data fetching operations. The data operand fetching control further includes performing a memory access operation for the selected instruction based upon the mapping.