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Important note

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• Parameter passing mechanism and place used to pass parameters
  • Fact:

    There are 2 independent issues when you pass parameters: How a function passes a parameters: Pass the parameter by value Pass the parameter by reference Where (= what memory space) does the function uses to pass the parameter: We have see: register We will see: stack (soon) !!!

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• My didactic approach
  • Fact:

    It's conceptually easy to understand parameter passing when the parameter is passed using registers

    That's why:

    I showed you: Pass-by-value using registers Pass-by -reference using registers

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  • We will soon learn:

    Passing parameters using the system stack !!!

  • You can pass parameters:

    Pass-by-value using system stack Push the value of the variable on the stack Pass-by -reference using system stack Push the address of the variable on the stack