"Semaphore' may be used also to control the flow of execution. Consider the following situation: P and P2 are two concurrent processes; P executes statement si and P2 executes statement s2. Use...

Extracted text: "Semaphore' may be used also to control the flow of execution. Consider the following situation: P and P2 are two concurrent processes; P executes statement si and P2 executes statement s2. Use semaphores with the wait() and the signal() system calls to impose this flow of execution: s1 must be execute AFTER s2. Make a simulation to justify your answer (no point without a valid simulation).