Methods and systems for improved integrated circuit functional simulation
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United States of America Patent
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Issued Date -
Apr 28, 2005
app pub date -
Aug 26, 2004
filing date -
Aug 26, 2003
priority date (Note) -
Abandoned
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Abstract
Methods and systems for performing symbolic simulation, including techniques for translating a conventional simulation into a symbolic simulation, for handling wait and delay states, and for performing temporally out-of-order simulations. Additional techniques for extracting a signal graph from an HDL representation of a device, for representing signal values as functions of time using binary decision diagrams, and for computing minimal signal sets for accurate simulation. Techniques and methods for improving waveform dumping, reducing the waveform database, and for combining out-of-order simulation or reduced time steps with conventional time-based simulation.
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