发明授权
US5790844A Millicode load and test access instruction that blocks interrupts in
response to access exceptions
失效
Millicode加载和测试访问指令阻止中断响应访问异常
- 专利标题： Millicode load and test access instruction that blocks interrupts in response to access exceptions
- 专利标题（中）： Millicode加载和测试访问指令阻止中断响应访问异常
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申请号： US829268申请日： 1997-03-31
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公开(公告)号： US5790844A公开(公告)日： 1998-08-04
- 发明人: Charles Franklin Webb , Mark Steven Farrell , Mark Anthony Check , John Stephen Liptay
- 申请人： Charles Franklin Webb , Mark Steven Farrell , Mark Anthony Check , John Stephen Liptay
- 申请人地址： NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： NY Armonk
- 主分类号： G06F9/30
- IPC分类号： G06F9/30 ; G06F9/305 ; G06F9/318 ; G06F9/38 ; G06F11/07
摘要：
A special inillicode instruction "Load With Access Test" explicitly detects access exceptions for storage operands while retaining control in the current millicode routine to insure exceptions are handled correctly and with the right priority. The millicode Load With Access Test instruction operates similarly to the ESA/390 Load instruction except that access exception code is set, interrupts are blocked and the serialization is forced to purge the instruction pipeline and reset the pipeline control without redirection of the instruction stream.
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