Electrical computers and digital processing systems: processing – Dynamic instruction dependency checking – monitoring or...
Reexamination Certificate
2007-12-20
2010-11-09
Chan, Eddie P (Department: 2183)
Electrical computers and digital processing systems: processing
Dynamic instruction dependency checking, monitoring or...
Reexamination Certificate
active
07831808
ABSTRACT:
A processor includes a general purpose (GP) unit adapted to receive and configured to execute GP instructions; and includes a single instruction multiple data (SIMD) unit adapted to receive and configured to execute SIMD instructions. An instruction unit comprises a first logic unit coupled to the GP unit and a second logic unit coupled to the SIMD unit, wherein SIMD instructions are processed subsequent to GP instructions. In the first logic unit a GP instruction with unresolved dependencies unconditionally causes subsequent SIMD instructions to stall, and an SIMD instruction with unresolved dependencies does not cause subsequent GP instructions to stall. The first logic unit resolves dependencies in GP instructions, provides dependency-free instructions to the GP unit, and provides SIMD instructions to the second logic unit. The second logic unit resolves dependencies in SIMD instructions and provides dependency-free instructions to the SIMD unit.
REFERENCES:
patent: 5978838 (1999-11-01), Mohamed et al.
patent: 6742111 (2004-05-01), Soni
Espasa et al.; “Out-of-Order Vector Architectures”; 1997; IEEE Computer Society; International Symposium on Microarchitecture '97; pp. 160-170.
Abernathy Christopher Michael
DeMent Jonathan James
Hall Ronald
Shippy David
Chan Eddie P
Faherty Corey S
International Business Machines - Corporation
Talpis Matthew B.
LandOfFree
Queue design system supporting dependency checking and issue... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Queue design system supporting dependency checking and issue..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Queue design system supporting dependency checking and issue... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4156306