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. 04, 2000
Filed:
Oct. 24, 1997
Tu Van Nguyen, Apex, NC (US);
Jerry Wayne Stevens, Raleigh, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention provides a method, system, and computer program product for extending channel programs in a computer system which uses a channel sub-system. An initial channel program is built to end with a terminating channel command word (CCW) followed by a dummy CCW. When required, a new channel program is built separately, then the dummy CCW in the initial channel program is modified to transfer channel execution to the new channel program. Once modification of the dummy CCW is completed, the terminating CCW in the initial channel program is modified to allow the newly-built transfer CCW to execute.