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'''Logic simulation''' is the use of a computer program to [[simulate]] the operation of a [[digital circuit]]. Logic simulation is the primary tool used for verifying the logical correctness of a hardware design. In many cases logic simulation is the first activity performed in the process of taking a hardware design from concept to realization. Modern [[hardware description language]]s are both simulatable and [[Logic synthesis|synthesizable]].
== Levels of abstraction ==
Because simulation is a general technique, a hardware design can be simulated at a variety of levels of abstraction. Often it is useful to simulate a model at several levels of abstraction in the same simulation run. The commonly used levels of abstraction are [[digital circuit|gate level]], [[register transfer level]] (RTL), and behavioral (or algorithmic) level. However, it is possible to incorporate lower levels like [[SPICE|transistor level]] or even lower physical levels as well as higher levels such as transaction levels or ___domain-specific levels.
==Advantages of logic simulation ==
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