发明授权
US4827400A Segment descriptor present bit recycle and detect logic for a memory
management unit
失效
段描述符提供存储器管理单元的位回收和检测逻辑
- 专利标题： Segment descriptor present bit recycle and detect logic for a memory management unit
- 专利标题（中）： 段描述符提供存储器管理单元的位回收和检测逻辑
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申请号： US848513申请日： 1986-04-07
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公开(公告)号： US4827400A公开(公告)日： 1989-05-02
- 发明人: Llewelyn S. Dunwell , Richard P. Brown , Arthur Peters , John L. Curley
- 申请人： Llewelyn S. Dunwell , Richard P. Brown , Arthur Peters , John L. Curley
- 申请人地址： MN Minneapolis
- 专利权人： Honeywell Bull Inc.
- 当前专利权人： Honeywell Bull Inc.
- 当前专利权人地址： MN Minneapolis
- 主分类号： G06F12/02
- IPC分类号： G06F12/02 ; G06F12/08
摘要：
A data processing system includes a logical address to a physical address translator in an extended memory management unit. A 128 word memory stores task segment descriptor words which include a base address. A 16 word memory stores corresponding present bits to indicate if the addressed task segment descriptor is present in its memory. This arrangement allows a 128 word memory to be cleared in 16 memory cycles.
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