text: /*	$OpenBSD: instat.c,v 1.2 2001/07/04 08:31:35 niklas Exp $	*/
  
  /*
   * bug routines -- assumes that the necessary sections of memory
   * are preserved.
   */
  #include <sys/types.h>
  #include <machine/prom.h>
  
  /* returns 0 if no characters ready to read */
  int
  mvmeprom_instat()
  {
  	int ret;
  
  	MVMEPROM_CALL(MVMEPROM_INSTAT);
  	asm volatile ("mr %0, 3" :  "=r" (ret));
  	return (!(ret & 0x4));
  }
  