Data Organization on the Memory

  1. Convert the following C functions to assembly code.

    int swap_int(int *a, int *b){
    int aux = *a;
    *a = *b;
    *b = aux;
    return 0;
};

int swap_short(short *a, short *b){
    short aux = *a;
    *a = *b;
    *b = aux;
    return 0;
};

int swap_char(char *a, char *b){
    char aux = *a;
    *a = *b;
    *b = aux;
    return 0;
};

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  2. Convert the following C functions to assembly code.

    int middle_value_int(int *array, int n){
    int middle = n / 2;
    return array[middle];
};

short middle_value_short(short *array, int n){
    int middle = n / 2;
    return array[middle];
};

char middle_value_char(char *array, int n){
    int middle = n / 2;
    return array[middle];
};

int value_matrix(int matrix[12][42], int r, int c){
    return matrix[r][c];
};

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  3. Convert the following C functions to assembly code, using the program stack to store local variables.

    int fill_array_int(){
    int array[100];
    for (int i = 0; i < 100; i++)
        array[i] = i;
    return mystery_function_int(array);
};

int fill_array_short(){
    short array[100];
    for (short i = 0; i < 100; i++)
        array[i] = i;
    return mystery_function_short(array);
};

int fill_array_char(){
    char array[100];
    for (char i = 0; i < 100; i++)
        array[i] = i;
    return mystery_function_char(array);
};

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For exercises 4 and 5, the following struct must be used

typedef struct Node {
  int a;
  char b, c;
  short d;
} Node;

  1. Convert the following C function to assembly code.

    int node_op(Node *node){
    return node->a + node->b - node->c + node->d;
};

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  2. Convert the following C function to assembly code, using the program stack to store local variables.

    int node_creation(){
    Node node;
    node.a = 30;
    node.b = 25;
    node.c = 64;
    node.d = -12;
    return mystery_function(&node);
};

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