Method and system for memory renaming
    4.
    发明申请
    Method and system for memory renaming 有权
    用于内存重命名的方法和系统

    公开(公告)号:US20050149702A1

    公开(公告)日:2005-07-07

    申请号:US10745700

    申请日:2003-12-29

    摘要: Embodiments of the present invention provide a method, apparatus and system for memory renaming. In one embodiment, a decode unit may decode a load instruction. If the load instruction is predicted to be memory renamed, the load instruction may have a predicted store identifier associated with the load instruction. The decode unit may transform the load instruction that is predicted to be memory renamed into a data move instruction and a load check instruction. The data move instruction may read data from the cache based on the predicted store identifier and load check instruction may compare an identifier associated with an identified source store with the predicted store identifier. A retirement unit may retire the load instruction if the predicted store identifier matches an identifier associated with the identified source store. In another embodiment of the present invention, the processor may re-execute the load instruction without memory renaming if the predicted store identifier does not match the identifier associated with the identified source store.

    摘要翻译: 本发明的实施例提供了一种用于存储器重命名的方法,装置和系统。 在一个实施例中,解码单元可以解码加载指令。 如果加载指令被预测为存储器重新命名,则加载指令可以具有与加载指令相关联的预测存储标识符。 解码单元可以将预测为被重命名的存储器的加载指令变换为数据移动指令和加载检查指令。 数据移动指令可以基于预测的存储标识符从高速缓存读取数据,并且加载检查指令可以将与所识别的源存储器相关联的标识符与预测的存储标识符进行比较。 如果预测的商店标识符与与所标识的源商店相关联的标识符匹配,则退休单元可以退出加载指令。 在本发明的另一个实施例中,如果预测的存储标识符与与所识别的源存储器相关联的标识符不匹配,则处理器可以重新执行加载指令而不进行存储器重命名。