Test assembler

#include <iostream>
using namespace std;
//asm(".intel_syntax noprefix");
//asm(".att_syntax prefix");

/*usa assembler extend con inclusion explicita de la instruccion imul*/
int funcion(){
int no = 100, val ;
    asm ("movl %1, %%ebx;"
         "movl %%ebx, %0;"
         : "=r" ( val )        /* output */
         : "r" ( no )         /* input */
         : "%ebx"         /* clobbered register */
     );
return val;
}


int foo()
{
    int output(0);
    int some_obscure_name (5); // "param" will be accessible in inline Assembly.
   asm( "mov %0, %%eax "
         :  "=r"(output)     /* output */
         :  "r" (some_obscure_name)/* input */
         : /* clobbered register */
    );
         return output;
}

 int foo2(int entrada)
{
    int output(0);
   asm( "mov %0, %%eax "
         :  "=r"(output)     /* output */
         :  "r" (entrada)/* input */
         : /* clobbered register */
    );
         return output;
}

 int foo3()
{
//at&t memonico fuente,destino
    struct pto{int x;int y;};
    pto punto {7,5};

    //int output(0);
    pto output {0,0};
   asm(
        "mov %0, %%eax ;"//struct punto-> eax , eax contiene la structura
        "mov %%eax, %1 ;"//eax->output
         :  "=r"(output)     /* %1 output */
         :  "r" (punto)     /* %0 input */
         : /* clobbered register */
    );
         return output.x;
}

int main(){

    cout <<" salida "<<funcion()<<endl;
    cout <<" salida "<<foo()<<endl;
    cout <<" salida "<<foo2(69)<<endl;
    cout <<" salida "<<foo3()<<endl;
return 0;
}