text: extern int __bss_start;
  extern int __bss_end;
  
  extern int main();
  
  void _rpi_startup()
  {
  	register int *bss     = &__bss_start;
  	register int *bss_end = &__bss_end;
  
  	while (bss < bss_end) {
  		*bss++ = 0;
  	}
  
  	(void)main();
  
  	while(1);
  }
  