ex1.c

//
// Simple inline assembly example
// 
// For JOS lab 1 exercise 1
//

#include <stdio.h>

int main(int argc, char **argv)
{
   int x = 1;
   printf("Hello x = %d\n", x);
  
   //
   // Put in-line assembly here to increment
   // the value of x by 1 using in-line assembly
   //

   asm("incl %0" :"=r"(x) :"0"(x));
 
   printf("Hello x = %d after increment\n", x);

   if(x == 2){
      printf("OK\n");
   }
   else{
      printf("ERROR\n");
   }
}