Switching to original modifiable instruction copy comparison...

Details Switching to original modifiable instruction copy comparison... Switching to original modifiable instruction copy comparison...

2006-08-22

2006-08-22

Kim, Kenneth S. (Department: 2111)

Data processing: software development, installation, and managem

Software program development tool

Translation of code

C712S226000

Reexamination Certificate

active

07096460

ABSTRACT:
In a computer system that translates target instructions from a target instruction set into host instructions from a host instruction set, a method for checking a sequence of target instructions for changes. The method includes testing whether the target instructions at a memory location have changed subsequent to the translating by examining a bit indicator associated with the memory location and determining whether the testing is slowing the operation of the computer system. If the testing is slowing the operation of the computer system, a checking process initiated, which includes storing a copy of the sequence of target instructions and comparing the copy with the sequence of target instructions.

REFERENCES:
patent: 5832205 (1998-11-01), Kelly et al.
patent: 5875318 (1999-02-01), Langford
patent: 6199152 (2001-03-01), Kelly et al.
patent: 6363336 (2002-03-01), Banning et al.
patent: 6415379 (2002-07-01), Keppel et al.
patent: 6704925 (2004-03-01), Bugnion

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