Invention Grant
- Patent Title: Virtual 3-way decoupled prediction and fetch
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Application No.: US16909352Application Date: 2020-06-23
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Publication No.: US11762660B2Publication Date: 2023-09-19
- Inventor: Brett Alan Ireland , Michael Stephen Chin , Stephan Jean Jourdan
- Applicant: Ampere Computing LLC
- Applicant Address: US CA Santa Clara
- Assignee: Ampere Computing LLC
- Current Assignee: Ampere Computing LLC
- Current Assignee Address: US CA Santa Clara
- Agency: Withrow & Terranova, PLLC
- Main IPC: G06F9/30
- IPC: G06F9/30 ; G06F9/38

Abstract:
A unified queue configured to perform decoupled prediction and fetch operations, and related apparatuses, systems, methods, and computer-readable media, is disclosed. The unified queue has a plurality of entries, where each entry is configured to store information associated with at least one instruction, and where the information comprises an identifier portion, a prediction information portion, and a tag information portion. The unified queue is configured to update the prediction information portion of each entry responsive to a prediction block, and to update the tag information portion of each entry responsive to a tag and TLB block. The prediction information may be updated more than once, and the unified queue is configured to take corrective action where a later prediction conflicts with an earlier prediction.
Public/Granted literature
- US20210397452A1 VIRTUAL 3-WAY DECOUPLED PREDICTION AND FETCH Public/Granted day:2021-12-23
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