Invention Grant
- Patent Title: Varying an amount of data retrieved from memory based upon an instruction hint
- Patent Title (中): 根据指令提示改变从存储器检索的数据量
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Application No.: US12024170Application Date: 2008-02-01
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Publication No.: US08266381B2Publication Date: 2012-09-11
- Inventor: Ravi K. Arimilli , Gheorghe C. Cascaval , Balaram Sinharoy , William E. Speight , Lixin Zhang
- Applicant: Ravi K. Arimilli , Gheorghe C. Cascaval , Balaram Sinharoy , William E. Speight , Lixin Zhang
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Yudell Isidore Ng Russell, PLLC
- Main IPC: G06F12/08
- IPC: G06F12/08

Abstract:
In at least one embodiment, a processor detects during execution of program code whether a load instruction within the program code is associated with a hint. In response to detecting that the load instruction is not associated with a hint, the processor retrieves a full cache line of data from the memory hierarchy into the processor in response to the load instruction. In response to detecting that the load instruction is associated with a hint, a processor retrieves a partial cache line of data into the processor from the memory hierarchy in response to the load instruction.
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