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. 14, 1997
Filed:
May. 17, 1994
William C Moyer, Dripping Springs, TX (US);
James B Gullette, Austin, TX (US);
Kara B Pepe, Austin, TX (US);
Motorola Inc., Schaumburg, IL (US);
Abstract
A method and apparatus for determining instruction execution ordering in a data processing system (10). In one form, a control bit (52) is used by data processing system (10) to determine whether a standard instruction or a modified instruction is executed. The standard instruction performs a read bus cycle following by a write bus cycle. The bus (12) must be locked between the read and the write cycles in order to maintain coherency in semaphore applications. The modified instruction performs a buffered write bus cycle following by a read bus cycle. The bus (12) does not need to be locked between the write and the read cycles in order to maintain coherency in semaphore applications. Not locking the bus (12) can increase bus bandwidth in some bus systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile