Invention Grant
- Patent Title: Fetch predition circuit for reducing power consumption in a processor
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Application No.: US16363517Application Date: 2019-03-25
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Publication No.: US10901484B2Publication Date: 2021-01-26
- Inventor: Conrado Blasco , Ronald P. Hall , Ramesh B. Gunna , Ian D. Kountanis , Shyam Sundar , André Seznec
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- Main IPC: G06F9/38
- IPC: G06F9/38 ; G06F1/3237 ; G06F1/324 ; G06F1/3234 ; G06F1/3296

Abstract:
A processor includes a mechanism for disabling a memory array of a branch prediction unit. The processor may include a next fetch prediction unit that may include a number of entries. Each entry may correspond to a next instruction fetch group and may store an indication of whether or not the corresponding the next fetch group includes a conditional branch instruction. In response to an indication that the next fetch group does not include a conditional branch instruction, the fetch prediction unit may be configured to disable, in a next instruction execution cycle, the memory array of the branch prediction unit.
Public/Granted literature
- US20190286218A1 REDUCING POWER CONSUMPTION IN A PROCESSOR Public/Granted day:2019-09-19
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