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. 26, 2018
Filed:
Oct. 03, 2014
Purdue Research Foundation, West Lafayette, IN (US);
Saurabh Bagchi, West Lafayette, IN (US);
Matthew Edward Tan Creti, Lafayette, IN (US);
Vinaitheerthan Sundaram, West Lafayette, IN (US);
Patrick Eugster, West Layfayette, IN (US);
Purdue Research Foundation, West Lafayette, IN (US);
Abstract
An embedded device includes a processor executing instructions from module(s) in a code memory. The instructions specify: reading data from two non-deterministic registers (NDRs) of different types, compressing the data using respective, different compression algorithms, and storing the compressed data in a nonvolatile medium. A method of enabling debug tracing in a computer program product (CPP) includes locating instructions in the CPP that read NDRs, determining types of the NDRs, and adding instruction(s) to the CPP to compress the values read using compression algorithms corresponding to the respective NDR types. An emulator in a computer-readable medium receives emulation-target instructions (ETIs) and compressed NDR data, and emulates an execution sequence of the ETIs by determining NDR-reading instructions, determining a type of the NDR read by each, decompressing a portion of the NDR data using a type-specific decompressor, and updating emulated-machine state based on the decompressed portion.