Electrical computers and digital processing systems: processing – Processing architecture – Array processor
Reexamination Certificate
2005-09-13
2005-09-13
Coleman, Eric (Department: 2183)
Electrical computers and digital processing systems: processing
Processing architecture
Array processor
C712S214000
Reexamination Certificate
active
06944744
ABSTRACT:
A functional unit of a processor may be configured to operate on instructions as either a single, wide functional unit or as multiple, independent narrower units. For example, an execution unit may be scheduled to execute an instruction as a single double-wide execution unit or as two independently schedulable single-wide execution units. Functional unit portions may be independently schedulable for execution of instructions operating on a first data type (e.g. SISD instructions). For single-wide instructions, functional unit portions may be scheduled independently. An issue lock mechanism may lock functional unit portions together so that they form a single multi-wide functional unit. For certain multi-wide instructions (e.g. certain SIMD instructions), an instruction operating on a multi-wide or vector data type may be scheduled so that the full multi-wide operation is performed concurrently by functional unit portions locked together as a one wide functional unit.
REFERENCES:
patent: 4748585 (1988-05-01), Chiarulli et al.
patent: 4891787 (1990-01-01), Gifford
patent: 5287292 (1994-02-01), Kenny et al.
patent: 5475856 (1995-12-01), Kogge
patent: 5490059 (1996-02-01), Mahalingaiah et al.
patent: 5758176 (1998-05-01), Agarwal et al.
patent: 5915232 (1999-06-01), McMinn
patent: 5951689 (1999-09-01), Evoy et al.
patent: 6098030 (2000-08-01), McMinn
patent: 6308252 (2001-10-01), Agarwal et al.
patent: 6484253 (2002-11-01), Matsuo
patent: 1409466 (1975-10-01), None
“Superscalar Processor Architecture Using Flexible Execution Unit” IBM Technical Disclosure Bulletin, vol. 37, No. 2B, Feb. 1, 1994, pp. 699-702, XP000434005.
Search Report for PCT/US 03/22189 mailed Jun. 5, 2004.
Ahmed Ashraf
Filippo Michael A.
Pickett James K.
Advanced Micro Devices , Inc.
Coleman Eric
Kowert Robert C.
Meyertons Hood Kivlin Kowert & Goetzel P.C.
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