xref: /src/sys/arch/i386/stand/lib/getsecs.c

/*	$NetBSD: getsecs.c,v 1.1 1997/03/14 02:40:32 perry Exp $	*/

/* extracted from netbsd:sys/arch/i386/netboot/misc.c */

#include <sys/types.h>

#include <lib/libsa/stand.h>

#include "libi386.h"

extern int biosgetrtc __P((u_long*));

static inline u_long
bcd2dec(arg)
u_long arg;
{
  return((arg >> 4) * 10 + (arg & 0x0f));
}

time_t
getsecs() {
  /*
   * Return the current time in seconds
   */

  u_long t;
  time_t sec;

  if(biosgetrtc(&t))
      panic("RTC invalid");

  sec = bcd2dec(t & 0xff);
  sec *= 60;
  t >>= 8;
  sec += bcd2dec(t & 0xff);
  sec *= 60;
  t >>= 8;
  sec += bcd2dec(t & 0xff);

  return(sec);
}