Methods and systems for inter-pipeline data hazard avoidance

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11900122
APP PUB NO 20230350689A1
SERIAL NO

18220048

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Methods and parallel processing units for avoiding inter-pipeline data hazards identified at compile time. For each identified inter-pipeline data hazard the primary instruction and secondary instruction(s) thereof are identified as such and are linked by a counter which is used to track that inter-pipeline data hazard. When a primary instruction is output by the instruction decoder for execution the value of the counter associated therewith is adjusted to indicate that there is hazard related to the primary instruction, and when primary instruction has been resolved by one of multiple parallel processing pipelines the value of the counter associated therewith is adjusted to indicate that the hazard related to the primary instruction has been resolved. When a secondary instruction is output by the decoder for execution, the secondary instruction is stalled in a queue associated with the appropriate instruction pipeline if at least one counter associated with the primary instructions from which it depends indicates that there is a hazard related to the primary instruction.

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Patent Owner(s)

Patent OwnerAddress
IMAGINATION TECHNOLOGIES LIMITEDKINGS LANGLEY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Foo, Yoong-Chert London, GB 27 150
Iuliano, Luca Chesham, GB 29 95
Mower, Ollie Harrow, GB 15 82
Nield, Simon Wendover, GB 27 94

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