发明授权
US5652890A Interrupt for a protected mode microprocessor which facilitates
transparent entry to and exit from suspend mode
失效
用于保护模式微处理器的中断,便于透明进入和退出挂起模式
- 专利标题: Interrupt for a protected mode microprocessor which facilitates transparent entry to and exit from suspend mode
- 专利标题(中): 用于保护模式微处理器的中断,便于透明进入和退出挂起模式
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申请号: US173380申请日: 1993-12-23
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公开(公告)号: US5652890A公开(公告)日: 1997-07-29
- 发明人: Mark J. Foster , Saifuddin T. Fakhruddin , James L. Walker , Matthew B. Mendelow , Jiming Sun , Rodman S. Brahman , Michael P. Krau , Brian D. Willoughby , Michael D. Maddix , Steven L. Belt , Scott A. Hovey , Mark A. Ruthenbeck
- 申请人: Mark J. Foster , Saifuddin T. Fakhruddin , James L. Walker , Matthew B. Mendelow , Jiming Sun , Rodman S. Brahman , Michael P. Krau , Brian D. Willoughby , Michael D. Maddix , Steven L. Belt , Scott A. Hovey , Mark A. Ruthenbeck
- 申请人地址: IL Deerfield
- 专利权人: Vantus Technologies, Inc.
- 当前专利权人: Vantus Technologies, Inc.
- 当前专利权人地址: IL Deerfield
- 主分类号: G06F1/24
- IPC分类号: G06F1/24 ; G06F9/46 ; G06F9/48 ; G06F11/14 ; G06F1/32
摘要:
A laptop computer system includes a protected mode microprocessor capable of operating in restricted and unrestricted modes, and an arrangement which in response to a predetermined condition saves information from the processor and then forcibly switches the processor to its unrestricted mode of operation. When running a multi-tasking operating system where an application program is being executed in a restricted mode, a suspend/resume operation can be carried out in which the system is substantially powered down and then powered back up, and will resume the interrupted application with the restricted mode back in effect. Further, set-up changes such as adjustment of the processor speed can be made without exiting the application program running in the restricted mode.
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