Invention Grant
US08135894B1 Methods and systems for reducing interrupt latency by using a dedicated bit
有权
通过使用专用位来减少中断延迟的方法和系统
- Patent Title: Methods and systems for reducing interrupt latency by using a dedicated bit
- Patent Title (中): 通过使用专用位来减少中断延迟的方法和系统
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Application No.: US12533980Application Date: 2009-07-31
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Publication No.: US08135894B1Publication Date: 2012-03-13
- Inventor: James L. Ball
- Applicant: James L. Ball
- Applicant Address: US CA San Jose
- Assignee: Altera Corporation
- Current Assignee: Altera Corporation
- Current Assignee Address: US CA San Jose
- Agency: Weaver Austin Villeneuve & Sampson LLP
- Main IPC: G06F13/26
- IPC: G06F13/26

Abstract:
A system and a method for reducing interrupt latency is described. The system includes a first interrupt source configured to generate a first interrupt, a second interrupt source configured to generate a second interrupt, and a processor. The processor includes a shadow set that stores data used to service the first interrupt. The processor receives the second interrupt and receives a designation of the shadow set to service the second interrupt. The processor determines, based on a dedicated bit, whether the shadow set is used to service the first interrupt upon receiving the second interrupt.
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