Circuit design instrumentation for state visualization
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United States of America Patent
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Oct 24, 2017
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app pub date -
Jan 30, 2015
filing date -
Jan 30, 2015
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Abstract
An integrated circuit may include observable storage circuits and unobservable or non-observable storage circuits. Among values stored in the observable and the non-observable storage circuits, only the values stored in the observable storage circuits are accessible for read-back and/or write-back operations during hardware emulation. A computer system may receive a circuit design that includes a design-under-test and implement at least a portion of the circuit design in the integrated circuit. The computer system may insert observable storage circuits into the circuit design and couple the observable storage circuits to the non-observable storage circuits such that the data stored in the non-observable storage circuits may be accessed during read-back operations using the inserted observable storage circuits.
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