Method of estimating power consumption of each instruction processed by a microprocessor
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United States of America Patent
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Aug 24, 1999
Grant Date -
N/A
app pub date -
Jul 17, 1997
filing date -
Jul 19, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention provides a method of estimating the power consumption of a microprocessor with the use of an instruction file that is simple and easy to prepare. A microprocessor (3, 4) reads instructions out of a main memory (2) or an instruction cache (1) and executes them. A group of instructions that include at least one target instruction whose power consumption is to be estimated is repeatedly executed in simulations, to find the power consumption of the microprocessor on the target instruction in a cache miss state, as well as the power consumption of the microprocessor on the target instruction in a cache hit state, according to the power consumption of the microprocessor in given cycles.
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