Controlling the simulation

The components of the intersection interface have the following effect within ModelSim:

Intersection control used	Effect in ModelSim
Run 1000 button	invokes the run command for 1000 ns
Run Forever button	invokes the run -all command
Break button	invokes the break command
light timing control	invokes the force command with the arguments for the indicated signal and time
arrival time control	invokes the force command with the arguments for the indicated direction and time
waiting queue	any time you change a control the examine command is invoked to display the value of the waiting queue

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