Multiple Execution Unit Processor Core
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United States of America Patent
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Issued Date -
Jun 25, 2015
app pub date -
Mar 10, 2014
filing date -
Dec 20, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A processor core includes multiple execution units, such as a first execution unit and a second execution unit. The first execution unit may include a first functional component that supports a superscalar pipeline. The second execution unit may include a second functional component supporting a scalar pipeline. The processor core may operate in a high-performance mode by using the first execution unit and powering down the second execution unit and operate in a low-power mode by using the second execution unit and powering down the first execution unit. The processor core may include common elements shared between the multiple execution units, such as a common instruction cache, data cache, register file(s), and more.
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