发明名称 |
Online CPU test for superscalar processors |
摘要 |
The invention relates to a method for testing a superscalar CPU (=central processing unit) of a computer system,
wherein the testing is done during startup (11) of the computer system and/or online during operation of the computer system, characterized in that the testing comprises a pseudo random testing procedure (1-8), wherein pseudo random test instructions and pseudo random test data are fed to the superscalar CPU (4a, 4b), and wherein an output data signature of the superscalar CPU is compared to a reference data signature (7). The invention provides a testing method for a superscalar CPU of a computer system that can be applied with basically every superscalar CPU, in particular even if detailed information about internal design and implementation of CPU hardware is not available. |
申请公布号 |
EP1950660(A1) |
申请公布日期 |
2008.07.30 |
申请号 |
EP20070001816 |
申请日期 |
2007.01.27 |
申请人 |
THALES RAIL SIGNALLING SOLUTIONS GMBH |
发明人 |
SCHERRER, CHRISTOPH, DR.;SPIES, WERNER;MESSNER, ANDREAS;PLATTNER, CHRISTOPF;KOENIG, NIKOLAUS;DRECHSEL, MICHAEL |
分类号 |
G06F11/263 |
主分类号 |
G06F11/263 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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