FreeDOS/hdr/date.h
2001-11-17 23:26:45 +00:00

94 lines
3.5 KiB
C

/****************************************************************/
/* */
/* date.h */
/* */
/* DOS General Date Structure */
/* */
/* Copyright (c) 1995 */
/* Pasquale J. Villani */
/* All Rights Reserved */
/* */
/* This file is part of DOS-C. */
/* */
/* DOS-C is free software; you can redistribute it and/or */
/* modify it under the terms of the GNU General Public License */
/* as published by the Free Software Foundation; either version */
/* 2, or (at your option) any later version. */
/* */
/* DOS-C is distributed in the hope that it will be useful, but */
/* WITHOUT ANY WARRANTY; without even the implied warranty of */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */
/* the GNU General Public License for more details. */
/* */
/* You should have received a copy of the GNU General Public */
/* License along with DOS-C; see the file COPYING. If not, */
/* write to the Free Software Foundation, 675 Mass Ave, */
/* Cambridge, MA 02139, USA. */
/****************************************************************/
/* TC 2.01 complains if `date' is defined twice. -- ror4 */
#ifndef DOSC_DATE_H
#define DOSC_DATE_H
#ifdef MAIN
#ifdef VERSION_STRINGS
static BYTE *date_hRcsId = "$Id$";
#endif
#endif
/* FAT file date - takes the form of yyyy yyym mmmd dddd where physical */
/* year=1980+yyyyyy */
#define DT_YEAR(d) (((d)>>9)&0x7f)
#define DT_MONTH(d) (((d)>>5)&0x0f)
#define DT_DAY(d) ((d)&0x1f)
#define DT_ENCODE(m,d,y) ((((m)&0x0f)<<5)|((d)&0x1f)|(((y)&0x7f)<<9))
#define EPOCH_WEEKDAY 2 /* Tuesday (i. e.- 0 == Sunday) */
#define EPOCH_MONTH 1 /* January */
#define EPOCH_DAY 1 /* 1 for January 1 */
#define EPOCH_YEAR 1980 /* for Tues 1-1-80 epoch */
typedef UWORD date;
#endif
/*
* Log: date.h,v
*
* Revision 1.2 1999/08/25 03:17:11 jprice
* ror4 patches to allow TC 2.01 compile.
*
* Revision 1.1.1.1 1999/03/29 15:39:23 jprice
* New version without IPL.SYS
*
* Revision 1.3 1999/02/01 01:40:06 jprice
* Clean up
*
* Revision 1.2 1999/01/22 04:17:40 jprice
* Formating
*
* Revision 1.1.1.1 1999/01/20 05:51:01 jprice
* Imported sources
*
*
* Rev 1.5 04 Jan 1998 23:14:18 patv
* Changed Log for strip utility
*
* Rev 1.4 29 May 1996 21:25:20 patv
* bug fixes for v0.91a
*
* Rev 1.3 19 Feb 1996 3:15:30 patv
* Added NLS, int2f and config.sys processing
*
* Rev 1.2 01 Sep 1995 17:35:40 patv
* First GPL release.
*
* Rev 1.1 30 Jul 1995 20:43:48 patv
* Eliminated version strings in ipl
*
* Rev 1.0 02 Jul 1995 10:39:28 patv
* Initial revision.
*/