Method and system for utilizing main-shadow physical register files

• Main Authors: ARUNACHALAM RAJESH K, TAPES, EMIL, VENKATACHAR ASHOK T, NAIR ARUN A, AKKAPUDI, SRIKANTH
• Format: Patent
• Language: Chinese; English
• Published: 28.03.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention relates to a processor (100) in a data processing system. The processor comprises a main-shadow physical register file (151) and a renaming unit (114). The main-shadow physical register file has a main storage device (117) coupled to a shadow storage device (118). The renaming unit is coupled to the main-shadow physical register file. And a transfer unit that transfers data in the main storage device from the main storage device to the shadow storage device for storage based on the occurrence of the shadow transfer activation condition verified by the renaming unit. Data is transferred from the shadow storage device back to the main storage device based on the occurrence of a shadow-to-main transfer event, including, for example, a refresh of the main storage device by the processor. 本发明涉及一种数据处理系统中的处理器(100)，该处理器包括主-影子物理寄存器文件(151)和重命名单元(114)。该主-影子物理寄存器文件具有耦合到影子存储装置(118)的主存储装置(117)。该重命名单元耦合到该主-影子物理寄存器文件。基于由该重命名单元验证的影子传输激活条件的发生，将该主存储装置中的数据从该主存储装置传输到该影子存储装置以进行存储。基于影子到主传输事件的发生，数据从该影子存储装置传输回该主存储装置，该影子