发明公开
- 专利标题： Machine with two units of operation
- 专利标题（中）： Maschine mit zwei Verarbeitungseinheiten。
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申请号： EP92311897.0申请日： 1992-12-31
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公开(公告)号： EP0550285A2公开(公告)日： 1993-07-07
- 发明人: Connell, Jefferson Joseph , Johnson, Vernon R. , Lipman, Peter H. , Maier, Robert Martin
- 申请人： AMDAHL CORPORATION
- 申请人地址： 1250 East Arques Avenue Sunnyvale California 94086 US
- 专利权人： AMDAHL CORPORATION
- 当前专利权人： AMDAHL CORPORATION
- 当前专利权人地址： 1250 East Arques Avenue Sunnyvale California 94086 US
- 代理机构： Crawford, Andrew Birkby
- 优先权： US815962 19920102
- 主分类号： G06F9/46
- IPC分类号： G06F9/46 ; G06F11/34 ; G06F9/44
摘要：
A computer system that has a machine unit of operation (MUO) used to time executions in the system, has a User State and a Control State, has multiple domains for logical processors, and and has a Domain Unit of Operation (DUO) to time domain operations in the system. The DUO is used for timing during emulation User instructions a control program in control state. The physical processor is augmented by a DUO control bit that control bit indicates that execution is within a machine unit of operation or a domain unit of operation. The DUO bit is set when a transfer is forced from User State to Control State in order to emulate a user instruction. The DUO bit can be explicitly set or reset by Control Software.
公开/授权文献
- EP0550285A3 Machine with two units of operation 公开/授权日：1993-10-27
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