System and method for efficiently testing cache congruence classes during processor design verification and validation
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United States of America Patent
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Sep 13, 2011
Grant Date -
Mar 12, 2009
app pub date -
Sep 11, 2007
filing date -
Sep 11, 2007
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Abstract
A system and method for using a single test case to test each sector within multiple congruence classes is presented. A test case generator builds a test case for accessing each sector within a congruence class. Since a congruence class spans multiple congruence pages, the test case generator builds the test case over multiple congruence pages in order for the test case to test the entire congruence class. During design verification and validation, a test case executor modifies a congruence class identifier (e.g., patches a base register), which forces the test case to test a specific congruence class. By incrementing the congruence class identifier after each execution of the test case, the test case executor is able to test each congruence class in the cache using a single test case.
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