Invention Grant
US07975130B2 Method and system for early instruction text based operand store compare reject avoidance
失效
早期指令文本操作数存储的方法和系统比较拒绝回避
- Patent Title: Method and system for early instruction text based operand store compare reject avoidance
- Patent Title (中): 早期指令文本操作数存储的方法和系统比较拒绝回避
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Application No.: US12034042Application Date: 2008-02-20
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Publication No.: US07975130B2Publication Date: 2011-07-05
- Inventor: Khary J. Alexander , Fadi Y. Busada , Bruce C. Giamei , David S. Hutton , Chung-Lung Kevin Shum
- Applicant: Khary J. Alexander , Fadi Y. Busada , Bruce C. Giamei , David S. Hutton , Chung-Lung Kevin Shum
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent John Campbell
- Main IPC: G06F9/312
- IPC: G06F9/312

Abstract:
A method and system for early instruction text based operand store compare avoidance in a processor are provided. The system includes a processor pipeline for processing instruction text in an instruction stream, where the instruction text includes operand address information. The system also includes delay logic to monitor the instruction stream. The delay logic performs a method that includes detecting a load instruction following a store instruction in the instruction stream, comparing the operand address information of the store instruction with the load instruction. The method also includes delaying the load instruction in the processor pipeline in response to detecting a common field value between the operand address information of the store instruction and the load instruction.
Public/Granted literature
- US20090210675A1 METHOD AND SYSTEM FOR EARLY INSTRUCTION TEXT BASED OPERAND STORE COMPARE REJECT AVOIDANCE Public/Granted day:2009-08-20
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