Invention Grant
- Patent Title: Multi-level dispatch for a superscalar processor
- Patent Title (中): 超标量处理器的多级调度
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Application No.: US13749999Application Date: 2013-01-25
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Publication No.: US09336003B2Publication Date: 2016-05-10
- Inventor: John H. Mylius , Gerard R. Williams, III , Shyam Sundar Balasubramanian , Conrado Blasco-Allue
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Agent Lawrence J. Merkel
- Main IPC: G06F9/30
- IPC: G06F9/30 ; G06F9/38 ; G06F9/48

Abstract:
In an embodiment, a processor includes a multi-level dispatch circuit configured to supply operations for execution by multiple parallel execution pipelines. The multi-level dispatch circuit may include multiple dispatch buffers, each of which is coupled to multiple reservation stations. Each reservation station may be coupled to a respective execution pipeline and may be configured to schedule instruction operations (ops) for execution in the respective execution pipeline. The sets of reservation stations coupled to each dispatch buffer may be non-overlapping. Thus, if a given op is to be executed in a given execution pipeline, the op may be sent to the dispatch buffer which is coupled to the reservation station that provides ops to the given execution pipeline.
Public/Granted literature
- US20140215188A1 Multi-Level Dispatch for a Superscalar Processor Public/Granted day:2014-07-31
Information query