#include <stdio.h>
#include <stdlib.h>

/**
 *
 * @param op1 ebp+8
 * @param op2 ebp+12
 * @param what ebp+16
 * @param flags ebp+16
 * @return
 */
extern int addsub(int op1, int op2, char what, unsigned int *flags);


int main(int argc, char **argv) {
    if (argc != 4) {
        printf("Wrong number of arguments\n");
        return -1;
    }
    if (*argv[2] != '+' && *argv[2] != '-') {
        printf("Only the operators +/- are supported\n");
        return -1;
    }


    int op1 = atoi(argv[1]);
    int op2 = atoi(argv[3]);
    char what = *argv[2];

    unsigned int *flags = malloc(32);

    int result = addsub(op1, op2, what, flags);

    short signedRes = (short) result;
    unsigned short unsignedRes = (unsigned short) result;

    printf("Flags:\n");
    printf("O D I T S Z   A   P   C\n");
    /*
     * TODO: Interpretation wenn Fehler im ASM behoben
     * https://stackoverflow.com/a/9361069
     */

    printf("%d\n\n", *flags);
    printf("%p\n", flags);

    printf("Ergebnis und Operanden Signed:\n");
    printf("%d %c %d = %d", op1, what, op2, signedRes);

    printf("\n\n");

    printf("Ergebnis und Operanden Unsigned:\n");
    printf("%d %c %d = %u", op1, what, op2, unsignedRes);

    printf("\n\n");

    return 0;
}