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Assembly Programming
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Develop a program that uses four signed, global, short variables A, B, C, D Initialize each variable A, B, C, D to a different positive one-digit value Somehow print the four values in order A B C D, space separated Print a newline character

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Question 1

  1. Develop a program that uses four signed, global, short variables A, B, C, D

Initialize each variable A, B, C, D to a different positive one-digit value

Somehow print the four values in order A B C D, space separated

Print a newline character

Reorder the values in the variables from the order A, B, C, D to B, C, D, A

  • A -> B
  • B -> C
  • C -> D
  • D -> A

Somehow print the four values in order A B C D, space separated

 

Question 2

  1. Convert this C++ program exactly as you see it into x86 assembly language:

    #include <iostream>

    unsigned int x;
    unsigned int c;
    unsigned int result;

    // f(x) = 8x + c
    // Make sure to push and pop all necessary registers to the stack to
    // ensure only the EAX register is modified upon return from the function
    unsigned int Equation(unsigned int x, unsigned int c)
    {
      // You CANNOT use the mul or imul operations to perform the multiplication
        return (8 * x) + c;
    }

    void main()
    {
        std::cout << "Enter a value for x: ";
        std::cin >> x;
        std::cout << "Enter a value for c: ";
        std::cin >> c;
        result = Equation(x, c);
        std::cout << "f(x) = " << result << std::endl;
        system("PAUSE");
    }

 

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