Patent ID: 6311261
Filing Date: 2001-10-30
Classification: G06F

Abstract:
An improved reorder buffer system having a reorder buffer, said reorder buffer including a plurality of entry cells, a plurality of ports connected to said entry cells, and a pointer logic for adjusting a pointer to point to said entry cells, the improvement comprising:logic for associating each of said entry cells with a unique associative key;logic for storing data in one of said entry cells based on said pointer;logic for correlating a particular register with said unique associative key associated with said one entry cell by said associating logic, said correlating logic configured to indicate whether said unique associative key is associated with the entry cell that is storing the most recent data value destined for said particular register;logic for locating said data stored in said one entry cell based on the unique associative key associated with said one entry cell by said associating logic and based on said correlating logic; andlogic for reading said data located by said locating logic in response to an instruction for reading from said particular register.