Implement the nonblocking queue of Example 13.30 on an x86. Do you need fence instructions to ensure
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Implement the nonblocking queue of Example 13.30 on an x86. Do you need fence instructions to ensure consistency? If you have access to appropriate hardware, port your code to a machine with a more relaxed memory model (e.g., ARM or Power). What new fences or atomic references do you need?
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