发明授权
- 专利标题: System and method for automatic hardware interrupt handling
- 专利标题(中): 自动硬件中断处理的系统和方法
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申请号: US12847772申请日: 2010-07-30
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公开(公告)号: US08392644B2公开(公告)日: 2013-03-05
- 发明人: Erik K. Norden , David Yiu-Man Lau , James H. Robinson
- 申请人: Erik K. Norden , David Yiu-Man Lau , James H. Robinson
- 申请人地址: US CA Sunnyvale
- 专利权人: MIPS Technologies, Inc.
- 当前专利权人: MIPS Technologies, Inc.
- 当前专利权人地址: US CA Sunnyvale
- 代理机构: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- 主分类号: G06F9/48
- IPC分类号: G06F9/48
摘要:
A processing system is provided consisting of an interrupt pin, multiple registers, a stack pointer, and an automatic interrupt system. The multiple registers store a number of processor states values. When the system detects an interrupt on the interrupt pin the system prepares to enter an exception mode where the automatic interrupt system causes an interrupt vector to be fetched, the stack pointer to be updated, and the processor state values to be read in parallel from the registers and stored in memory locations based on the updated stack pointer, prior to the execution of an interrupt service routine. A method for automatic hardware interrupt handling is also presented.