发明授权
- 专利标题: Interrupt processing system and method for information processing system of pipeline control type
- 专利标题(中): 管道控制型信息处理系统中断处理系统及方法
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申请号: US154715申请日: 1998-09-17
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公开(公告)号: US6125443A公开(公告)日: 2000-09-26
- 发明人: Chiaki Takahashi
- 申请人: Chiaki Takahashi
- 申请人地址: JPX Tokyo JPX Kanagawa-ken
- 专利权人: Hitachi, Ltd.,Hitachi Information Technology Co., Ltd.
- 当前专利权人: Hitachi, Ltd.,Hitachi Information Technology Co., Ltd.
- 当前专利权人地址: JPX Tokyo JPX Kanagawa-ken
- 优先权: JPX9-255012 19970919
- 主分类号: G06F9/38
- IPC分类号: G06F9/38 ; G06F9/48 ; G06F9/00
摘要:
An interrupt processing system and method for an information processing system of pipeline control type are disclosed. The occurrence of an exception is detected for each plurality of instructions to be processed in parallel. The occurrences of exceptions, when detected for a plurality of the instructions to be processed in parallel, are reported collectively according to each cause of the exceptions. In the case where the occurrences of exceptions are reported for a plurality of the instructions to be processed in parallel by an exception reporting unit, an interrupt request is issued. In response to the interrupt request, the pipeline processing is restored by an instruction control unit to the state before execution of the leading one of the plurality of the instructions to be processed in parallel for which the occurrences of exceptions are detected, and the instructions are reexecuted one by one sequentially from the leading one of the plurality of instructions through the instruction control unit. Thus, an interrupt is accurately processed upon occurrence of an exception.