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:
Oct. 14, 2003
Filed:
Feb. 15, 2001
Steven T. Peltier, Mountain View, CA (US);
David X. Zhang, San Jose, CA (US);
Kenneth C. Yeager, Sunnyvale, CA (US);
Silicon Graphics, Inc., Mountain View, CA (US);
Abstract
An integrated circuit ( ) includes a central processing unit ( ), an instruction cache ( ), a data cache, ( ), and a trace recorder. The central processing unit ( ) interacts with the instruction cache ( ) and the data cache ( ) in order to execute instructions. Profile information passed between the central processing unit ( ), the instruction cache ( ), and the data cache ( ) not normally available for external analysis may be captured by the trace recorder ( ) in response to various execution points in a program being executed by the central processing unit ( ). The profile information captured by the trace recorder ( ) may subsequently be provided to external analysis equipment in order to analyze the operation of the central processing unit ( ) for study of program execution.