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.

Date of Patent:
Feb. 16, 1999

Filed:

Jun. 07, 1995
Applicant:
Inventors:

David N Wilner, Oakland, CA (US);

Colin Smith, Alameda, CA (US);

Robert D Cohen, Oakland, CA (US);

Dana Burd, Oakland, CA (US);

John C Fogelin, Berkeley, CA (US);

Mark A Fox, San Francisco, CA (US);

Kent D Long, Richmond, CA (US);

Stella M Burns, San Francisco, CA (US);

Assignee:

Wind River Systems, Inc., Alameda, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
39518314 ; 39518401 ;
Abstract

The present invention logs events which occur in the target software, and stores these in a buffer for periodic uploading to a host computer. Such events include the context switching of particular software tasks, and task status at such context switch times, along with events triggering such a context switch, or other events. The host computer reconstructs the real-time status of the target software from the limited event data uploaded to it. The status information is then displayed in a user-friendly manner. This provides the ability to perform a logic analyzer function on real-time software. A display having multiple rows, with one for each task or interrupt level, is provided. Along a time line, an indicator shows the status of each program, with icons indicating events and any change in status.


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