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Roll-Back Interrupt Method for Out-Of-Order Execution of System Programs

IP.com Disclosure Number: IPCOM000036462D
Original Publication Date: 1989-Oct-01
Included in the Prior Art Database: 2005-Jan-29

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Chang, JH Chao, H [+details]


A technique is described whereby a simple roll-back method combines both hardware and software to achieve a precise interrupt in a linear pipeline with out-of-order execution on systems, such as the IBM System/370. The concept is an improvement in very large-scale integrated (VLSI) circuitry environments when the driving capability and wiring restrictions are of major concern.