Processor architecture for multipass processing of instructions downstream of a stalled instruction

Wen-Mei W Hwu (Inventor), Ronald Barnes (Inventor)

Research output: Patent

Abstract

A processor triggers a first advanced execution processing pass to an instruction sequence in response to a first stalled instruction and initiates execution of a further instruction in the instruction sequence that stalls during the performance of the first advanced execution processing pass. A second advanced execution pass is performed through the instruction sequence in which the further instruction is processed again to provide a valid result after stalling. In one form, the first instruction is performed while the processor operates in a normal execution mode and the first and second advanced execution processing passes are performed while the processor operates in an advance execution mode.
Original languageEnglish (US)
U.S. patent number8266413
Filing date3/14/07
StatePublished - Sep 11 2012

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