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:
Jun. 22, 2004

Filed:

Dec. 22, 2000
Applicant:
Inventors:

Andrew Cofler, Voreppe, FR;

Isabelle Sename, Grenoble, FR;

Bruno Bernard, Echirolles, FR;

Assignee:

STMicroelectronics S.A., Gentilly, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/100 ; G06F 9/44 ; G11C 2/900 ;
U.S. Cl.
CPC ...
G06F 1/100 ; G06F 9/44 ; G11C 2/900 ;
Abstract

A computer system includes instruction fetch circuitry for dispatching fetched instructions to a pipelined execution unit, data memory access circuitry and emulator circuitry for use in debug operations, said emulator circuitry including error indicating circuitry to indicate an error in a data memory access operation, snoop circuitry for snooping memory access operation in said data memory access circuitry, synchronising means for synchronising snooped data memory access addresses with respective program counts for the instructions associated with said access addresses, memory mapped storage circuitry responsive to a data memory access error to indicate the data memory address associated with the error, whereby the emulator circuitry may use the data memory address in a subsequent operation to obtain from the synchronising means the specific program count associated with the memory access operation in which the error occurred.


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