International Business Machines Corporation

John D Rotramel

Cary Lee Bates

Greg A Dyck

Brian B Moore

William Augustus Carter

David E Lee

Leslie Charles Balfour

Gary V Railsback

In an approach for dynamically instrumenting a program at runtime, a processor identifies a sequence of memory related operations from an instruction stream, wherein the sequence includes at least a first memory related operation and a second memory related operation. A processor instruments the first memory related operation. A processor detects an error at the first memory related operation based on the instrumentation of the first memory related operation. A processor, responsive to detecting the error at the first memory related operation, instruments at least the second memory related operation.

Dynamic instrumentation based on detected errors

A method, apparatus, and article for solving the year 2000 problem involve processing a computer object program to identify object code instructions referencing date information for an operation which involves more than one century. The object code is altered by altering each identified instruction with an instruction to effect a transfer of control to a Year 2000 routine. The Year 2000 routine is a routine for altering the execution of an identified instruction in accordance with the Year 2000 routine and thereafter returning control to the object code.

Identifying date fields for runtime year 2000 system solution process, method and article of manufacture

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Lexington, KY, United States of America

John D Rotramel