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:
Nov. 04, 2003
Filed:
Jan. 24, 2000
Ronny Lee Arnold, Ft Collins, CO (US);
Donald Charles Soltis, Jr., Fort Collins, CO (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
Generally, the present invention provides a processing system and method for indicating when there is a pending write to a general register of the processing system. The processing system of the present invention utilizes a plurality of general registers, a plurality of connections, a pipeline, a scoreboard, and hazard detection circuitry. The plurality of connections corresponds respectively with the general registers. The scoreboard maintains a plurality of bits such that each bit indicates whether there is a pending write to a corresponding general register. The scoreboard transmits to the hazard detection circuitry one of the bits that is indicative of whether a pending write to the one general register exists based on a value of the one bit and based on which of the connections is used to transmit the one bit. The hazard detection circuitry then detects whether a data hazard exists based on the one bit.