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:
Mar. 14, 2006

Filed:

Dec. 12, 2001
Applicants:

Andrew Cofler, Voreppe, FR;

Laurent Wojcieszak, Meylan, FR;

Arnaud Dehamel, Grenoble, FR;

Isabelle Sename, Grenoble, FR;

Inventors:

Andrew Cofler, Voreppe, FR;

Laurent Wojcieszak, Meylan, FR;

Arnaud Dehamel, Grenoble, FR;

Isabelle Sename, Grenoble, FR;

Assignee:

STMicroelectronics S.A., Montrouge, FR;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/455 (2006.01); G06F 11/36 (2006.01);
U.S. Cl.
CPC ...
Abstract

A computer system for executing instructions having assigned guard indicators, comprises instruction supply circuitry, pipelined execution units for receiving instructions from the supply circuitry together with at least one guard indicator selected from a set of guard indicators, the execution unit including a master guard value store containing master values for the guard indicators, and circuitry for resolving the guard values in the execution pipeline and providing a signal to indicate whether the pipeline is committed to the execution of the instruction, and an emulator having watch circuitry for effecting a watch on selected instructions supplied to the execution pipeline and synchronising circuitry for correlating resolution of the guard indicator of each selected instruction with a program count for that instruction.


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