Instruction swap for patching problematic instructions in a microprocessor

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United States of America Patent

PATENT NO 9395992
APP PUB NO 20140143521A1
SERIAL NO

13680133

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Abstract

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There is provided a method and system for replacing an instruction with another instruction. A match register stores an opcode that identifies an instruction to be replaced. A swap register stores an instruction that replaces the identified instruction. A multiplexer chooses the instruction stored in the swap register over the identified instruction if predecode bits of the identified instruction are set.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Doing, Richard W Raleigh, US 25 460
Hall, Ronald Cedar Park, US 31 242
Magill, Kevin N Durham, US 10 211
Tingen, James O Raleigh, US 1 10
Venton, Todd A Austin, US 16 279

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