| 摘要 |
PROBLEM TO BE SOLVED: To execute instructions fast by predicting local slack with simpler constitution than conventional techniques. SOLUTION: A processor predicts predicted slack which is a predicted value of local slack of an instruction to be executed and executes the instruction using the predicted slack. A slack table is referred to upon execution of an instruction to obtain predicted slack of the instruction and execution latency is increased by an amount equivalent to the obtained predicted slack. Then, it is estimated, based on behavior exhibited upon execution of the instruction, whether or not the predicted slack has reached target slack which is an appropriate value of current local slack of the instruction. The predicted slack is gradually increased each time the instruction is executed, until it is estimated that the predicted slack has reached the target slack. COPYRIGHT: (C)2008,JPO&INPIT
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