/*** nmtime.h - defines DOS packed date and time types
*
*	Copyright (c) 1987-1990, Microsoft Corporation.  All rights reserved.
*
* Purpose:
*	 This file defines the DOS packed date and time types.
*
* Revision History:
*  19-May-1993 HV Changed _dtoxtime() to _dostotime_t() so that we can
*                 use the standard llibce.lib instead of the private
*                 llibcer.lib.
*  04-Dec-1989 SB added proper fn proto for _dtoxtime() (c6 -W3 reqmemt)
*  05-Dec-1988 SB added CDECL for _dtoxtime()
*  ??-???-???? ?? Taken from dostypes.h
*
*******************************************************************************/


#define MASK4	0xf		/* 4 bit mask */
#define MASK5	0x1f		/* 5 bit mask */
#define MASK6	0x3f		/* 6 bit mask */
#define MASK7	0x7f		/* 7 bit mask */

#define DAYLOC		0	/* day value starts in bit 0 */
#define MONTHLOC	5	/* month value starts in bit 5 */
#define YEARLOC		9	/* year value starts in bit 9 */

#define SECLOC		0	/* seconds value starts in bit 0 */
#define MINLOC		5	/* minutes value starts in bit 5 */
#define HOURLOC		11	/* hours value starts in bit 11 */

#define DOS_DAY(dword)		(((dword) >> DAYLOC) & MASK5)
#define DOS_MONTH(dword)	(((dword) >> MONTHLOC) & MASK4)
#define DOS_YEAR(dword)		(((dword) >> YEARLOC) & MASK7)

#define DOS_HOUR(tword)	(((tword) >> HOURLOC) & MASK5)
#define DOS_MIN(tword)	(((tword) >> MINLOC) & MASK6)
#define DOS_SEC(tword)	(((tword) >> SECLOC) & MASK5)

extern time_t CDECL _dostotime_t(int, int, int, int, int, int);

#define XTIME(d,t)  _dostotime_t(DOS_YEAR(d),				       \
			DOS_MONTH(d),					       \
			DOS_DAY(d),					       \
			DOS_HOUR(t),					       \
			DOS_MIN(t),					       \
			DOS_SEC(t)*2)