Branch prediction power reduction
In one embodiment, a microprocessor is provided. The microprocessor includes a branch prediction unit. The branch prediction unit is configured to track the presence of branches in instruction data that is fetched from an instruction memory after a redirection at a target of a predicted taken branch...
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| Main Authors | , , |
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| Format | Patent |
| Language | Chinese English |
| Published |
16.02.2014
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| Subjects | |
| Online Access | Get full text |
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| Abstract | In one embodiment, a microprocessor is provided. The microprocessor includes a branch prediction unit. The branch prediction unit is configured to track the presence of branches in instruction data that is fetched from an instruction memory after a redirection at a target of a predicted taken branch. The branch prediction unit is selectively powered up from a powered-down state when the fetched instruction data includes a branch instruction and is maintained in the powered-down state when the fetched instruction data does not include an instruction branch in order to reduce power consumption of the microprocessor during instruction fetch operations. |
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| AbstractList | In one embodiment, a microprocessor is provided. The microprocessor includes a branch prediction unit. The branch prediction unit is configured to track the presence of branches in instruction data that is fetched from an instruction memory after a redirection at a target of a predicted taken branch. The branch prediction unit is selectively powered up from a powered-down state when the fetched instruction data includes a branch instruction and is maintained in the powered-down state when the fetched instruction data does not include an instruction branch in order to reduce power consumption of the microprocessor during instruction fetch operations. |
| Author | AGGARWAL, ANEESH WASSON, PAUL SEGELKEN, ROSS |
| Author_xml | – fullname: AGGARWAL, ANEESH – fullname: WASSON, PAUL – fullname: SEGELKEN, ROSS |
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| Notes | Application Number: TW20132114412 |
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| RelatedCompanies | NVIDIA CORPORATION |
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| Snippet | In one embodiment, a microprocessor is provided. The microprocessor includes a branch prediction unit. The branch prediction unit is configured to track the... |
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| SubjectTerms | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS |
| Title | Branch prediction power reduction |
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