• Several logic changes occur simultaneously in a circuit (concurrent operations)
• But simulator being run by a sequential machine, hence it cannot process events concurrently.
• To take care this, time is frozen within the simulator.
• The real time the simulator takes to complete all concurrent operations in the queue is called SIMULATION DELTA.
The minimum time interval possible for the simulator is assumed to be 1 ns here
• SUMMARY
Simulation deltas allow ordering of events that occur at the same simulation time during simulation.
Simulation deltas are infinitesimal amount of time used as synchronism mechanism when zero delay events are present.
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