Method and system for managing registers

Details Method and system for managing registers Method and system for managing registers

2005-10-25

2005-10-25

Pan, Daniel H. (Department: 2183)

Electrical computers and digital processing systems: processing

Dynamic instruction dependency checking, monitoring or...

C712S219000

Reexamination Certificate

active

06959377

ABSTRACT:
A system and method for memory structures for efficient tracking and recycling of physical register assignments are disclosed. The method and system provide the necessary functionality to allow the number of physical registers assigned to incoming instructions to equal the number of physical registers that are returned to the list of free registers each cycle, thereby maintaining a substantially constant number of physical register pointers in the list of free registers. The system and method reduce the size of the memory structures utilized to track the usage of physical registers and the recycling of these registers.

REFERENCES:
patent: 5673426 (1997-09-01), Shen et al.
patent: 5974240 (1999-10-01), Chan
patent: 6119223 (2000-09-01), Witt
patent: 6266763 (2001-07-01), Witt et al.
Intel Architecture Software Developer's Manual vol. 2: Instruction Set Reference, Intel Corporation, 1997, pp. 1-1, 3-1 to 3-10, 3-17 to 3-20, 3-57 to 3-62, 3-107 to 3-108, 3-241 to 3-244, and 3-448 to 3-451.

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