Electrical computers and digital processing systems: processing – Dynamic instruction dependency checking – monitoring or...
Reexamination Certificate
2007-07-03
2007-07-03
Treat, William M. (Department: 2181)
Electrical computers and digital processing systems: processing
Dynamic instruction dependency checking, monitoring or...
C712S225000, C711S210000
Reexamination Certificate
active
11140847
ABSTRACT:
Systems and methods for determining dependencies between processor instructions in multiple phases. In one embodiment, a partial comparison is made between the addresses of a sequence of instructions. Younger instructions having potential dependencies on older instructions are suspended if the partial comparison yields a match. One or more subsequent comparisons are made for suspended instructions based on portions of the addresses referenced by the instructions that were not previously compared. If subsequent comparisons determine that the addresses of the instructions do not match, the suspended instructions are reinstated and execution of the suspended instructions is resumed. In one embodiment, data needed by suspended instructions is speculatively requested in case the instructions are reinstated.
REFERENCES:
patent: 5434987 (1995-07-01), Abramson et al.
patent: 5644752 (1997-07-01), Cohen et al.
patent: 5724536 (1998-03-01), Abramson et al.
patent: 6360298 (2002-03-01), Osanai et al.
patent: 6389527 (2002-05-01), Raam et al.
patent: 6804759 (2004-10-01), Luick
Iwamura Kenji
Osanai Takeki
Kabushiki Kaisha Toshiba
Law Offices of Mark L. Berrier
Treat William M.
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