The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 11, 2000
Filed:
Apr. 11, 1997
Applicant:
Inventor:
Bennie L Shearer, Jr, Humble, TX (US);
Assignee:
BMC Software, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ; G06F / ;
U.S. Cl.
CPC ...
712233 ; 712210 ;
Abstract
A single-instruction method of diverting or 'hooking' the operation of software entails setting up a work area of code at an address within the range of a relative branching instruction type defined in the operating-system architecture. Hooking is accomplished by patching the software in question to insert a single relative-branch instruction. That instruction causes program execution to be diverted to the work area. In one embodiment, the work area is an area of memory that normally is used only for system initialization and thus would not otherwise be executed by the processor system after system initialization is complete.