Question: 4 (I0 points) Solve the eritical section problem using the atomie decrement instruction. Is definition is: int Dec(int &x): ( x=x-1; return x; This instruction

4 (I0 points) Solve the eritical section problem using the atomie decrement instruction. Is definition is: int Dec(int &x): ( x=x-1; return x; This instruction executes atomically. Note also that x is a reference parameter. You are to provide the entry0 and exit) routines, as in the Test-and-Set example in class

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