发明授权
US08041928B2 Information handling system with real and virtual load/store instruction issue queue
有权
具有实际和虚拟加载/存储指令问题队列的信息处理系统
- 专利标题: Information handling system with real and virtual load/store instruction issue queue
- 专利标题(中): 具有实际和虚拟加载/存储指令问题队列的信息处理系统
-
申请号: US12341930申请日: 2008-12-22
-
公开(公告)号: US08041928B2公开(公告)日: 2011-10-18
- 发明人: William E. Burky , Kurt A. Feiste , Dung Quoc Nguyen , Balaram Sinharoy , Albert Thomas Williams
- 申请人: William E. Burky , Kurt A. Feiste , Dung Quoc Nguyen , Balaram Sinharoy , Albert Thomas Williams
- 申请人地址: US 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: US NY Armonk
- 代理商 Stephen J. Walder, Jr.; Diana R. Gerhardt
- 主分类号: G06F9/00
- IPC分类号: G06F9/00
摘要:
An information handling system includes a processor that may perform issue queue virtual load/store instruction operations. The issue queue maintains load and store instructions with a real/virtual dependency flag. The issue queue provides storage resources for real and virtual load/store instructions. Real load/store instructions execute in a load store unit LSU. Virtual load/store instructions are pending execution in the LSU. The LSU may keep track of each virtual load/store instruction within the issue queue by thread, type, and pointer data. Provided that all dependencies are clear for a pending virtual load/store instruction, the LSU marks the pending virtual load/store instruction as real. The pending virtual load/store instruction may then issue to the LSU as a real load/store instruction.
公开/授权文献
信息查询