retrieve main arguments without main arguments

#include <stdio.h>

int main(void) {
    int ac;
    char **av;

    __asm__("mov %%edi, %0\n\t"
            "mov %%rsi, %1"
            :"=r" (ac), "=r" (av)
            :
            :
            );
    printf("Argc: %d\n", ac);
    for (int i = 0; i < ac; i++)
        printf("Argument %d: %s\n", i, av[i]);
    return 0;
}