Predictor data structure for use in pipelined processing
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United States of America Patent
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Dec 6, 2016
Grant Date -
Jan 1, 2015
app pub date -
Jun 28, 2013
filing date -
Jun 28, 2013
priority date (Note) -
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Abstract
A predictor data structure is used for pipelined processing by a pipelined processor. The predictor data structure includes a predicted address to be used in return from execution of a selected instruction, and a predicted operating state associated with the predicted address. Based on determining a selected return instruction is to be executed, the predicted address to which processing is to be returned is obtained from the predictor data structure. Further, based on determining the selected return instruction is to be executed, a transitional operating state to be entered based on the predicted operating state stored in the predictor data structure is predicted, wherein at least one of the predicted address and the predicted transitional operating state are to be used to validate execution of the selected return instruction.
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