Processor with hybrid pipeline capable of operating in out-of-order and in-order modes

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10114652
APP PUB NO 20160224351A1
SERIAL NO

15096805

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Abstract

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A method and circuit arrangement provide support for a hybrid pipeline that dynamically switches between out-of-order and in-order modes. The hybrid pipeline may selectively execute instructions from at least one instruction stream that require the high performance capabilities provided by out-of-order processing in the out-of-order mode. The hybrid pipeline may also execute instructions that have strict power requirements in the in-order mode where the in-order mode conserves more power compared to the out-of-order mode. Each stage in the hybrid pipeline may be activated and fully functional when the hybrid pipeline is in the out-of-order mode. However, stages in the hybrid pipeline not used for the in-order mode may be deactivated and bypassed by the instructions when the hybrid pipeline dynamically switches from the out-of-order mode to the in-order mode. The deactivated stages may then be reactivated when the hybrid pipeline dynamically switches from the in-order mode to the out-of-order mode.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINE CORPORATION

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Comparan, Miguel Kirkland, US 35 808
Hilton, Andrew D Durham, US 12 195
Jacobson, Hans M White Plains, US 63 593
Rogers, Brian M Durham, US 21 195
Shearer, Robert A Woodinville, US 163 4471
Vu, Ken V Cary, US 23 520
Watson,, III Alfred T Austin, US 11 185

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