#include <stdint.h>

void main();
 
void i386_main(void)
{
   extern uint32_t magic;
 
   /* Uncomment the following if you want to be able to access the multiboot header */
   /* extern void *mbd; */
 
   if ( magic != 0x2BADB002 )
   {
      /* Something went not according to specs. Print an error */
      /* message and halt, but do *not* rely on the multiboot */
      /* data structure. */
   }
 
   /* You could either use multiboot.h */
   /* (http://www.gnu.org/software/grub/manual/multiboot/multiboot.html#multiboot_002eh) */
   /* or do your offsets yourself. The following is merely an example. */ 
   //char * boot_loader_name =(char*) ((long*)mbd)[16];
 
   /* Print a letter to screen to see everything is working: */
   unsigned char *videoram = (unsigned char *)0xB8000;
   videoram[0] = 65; /* character 'A' */
   videoram[1] = 0x07; /* light grey (7) on black (0). */

   main();
}