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:
Jun. 18, 2019
Filed:
Aug. 25, 2016
Cadence Design Systems, Inc., San Jose, CA (US);
Amit Sharma, Noida, IN;
Amit Aggarwal, Ghaziabad, IN;
Amit Dua, Fremont, CA (US);
Manu Chopra, New Delhi, IN;
Vincent Reynolds, Maidenhead, GB;
Abhishek Raheja, Noida, IN;
Cadence Design Systems, Inc., San Jose, CA (US);
Abstract
Methods for debugging a failure in a logic circuit design simulation by tracing a X-value are provided. In one aspect, a method includes detecting during a X-propagation logic circuit design simulation a failure at a register transfer level of a logic circuit comprising one or more logic blocks and tracing a X-value in a data path of the one or more logic blocks until the X-value is observed in a control path of the one or more logic blocks. The method also includes identifying a logic block comprising a control signal of the control path in which the X-value is observed, and identifying the logic block in which the X-value is observed as a root cause of the failure. Systems and machine-readable media are also provided.