static void makeSwaps(int* arr, int len) {
    int num1;
    int num2;
    int sizeofInt;
    __asm {
        //num1 = 0
        mov num1, 0
        //num2 = len - 1
        mov eax, len
        mov num2, eax
        dec num2
        //len = len / 2
        mov eax, len
        shr len, 1
        //sizeofInt = sizeof(int)
        mov sizeofInt, type arr
        //set counter to len
        mov ecx, len
    swap:
        //eax = arr[num1]
        //mov eax, num1 //eax = num1
        //mul sizeofInt //eax *= sizeofInt
        //add eax, arr //eax += arr
        //push eax

        mov ebx, arr //ebx = arr
        mov eax, num1 //eax = num1
        mul sizeofInt //eax /= sizeofInt
        lea eax, [ebx + eax] //eax = ebx + eax
        push eax

        //eax = arr[num2]
        //mov eax, num2 //eax = num2
        //mul sizeofInt //eax *= sizeofInt
        //add eax, arr //eax += arr

        mov eax, arr //eax = arr
        mov edi, num2 //edi = num2
        lea eax, [eax + 4 * edi] //eax = eax + 4 * edi

        pop edx //edx = arr[num1]

        //eax contains addres of i element, edx contains address of j element
        //swap
        push [eax]
        push [edx]
        pop dword ptr [eax]
        pop dword ptr [edx]

        inc num1 //num1++
        dec num2 //num2++
        loop swap //do until ecx == 0
    }
}