2000-05-06 21:34:20 +02:00
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/****************************************************************/
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/* */
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/* date.h */
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/* */
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/* DOS General Date Structure */
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/* */
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/* Copyright (c) 1995 */
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/* Pasquale J. Villani */
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/* All Rights Reserved */
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/* */
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/* This file is part of DOS-C. */
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/* */
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/* DOS-C is free software; you can redistribute it and/or */
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/* modify it under the terms of the GNU General Public License */
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/* as published by the Free Software Foundation; either version */
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/* 2, or (at your option) any later version. */
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/* */
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/* DOS-C is distributed in the hope that it will be useful, but */
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/* WITHOUT ANY WARRANTY; without even the implied warranty of */
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/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */
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/* the GNU General Public License for more details. */
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/* */
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/* You should have received a copy of the GNU General Public */
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/* License along with DOS-C; see the file COPYING. If not, */
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/* write to the Free Software Foundation, 675 Mass Ave, */
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/* Cambridge, MA 02139, USA. */
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/****************************************************************/
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/* TC 2.01 complains if `date' is defined twice. -- ror4 */
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#ifndef DOSC_DATE_H
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#define DOSC_DATE_H
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#ifdef MAIN
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#ifdef VERSION_STRINGS
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2001-11-18 15:01:12 +01:00
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static BYTE *date_hRcsId =
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"$Id$";
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2000-05-06 21:34:20 +02:00
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#endif
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#endif
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2001-11-18 00:26:45 +01:00
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/* FAT file date - takes the form of yyyy yyym mmmd dddd where physical */
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/* year=1980+yyyyyy */
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#define DT_YEAR(d) (((d)>>9)&0x7f)
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#define DT_MONTH(d) (((d)>>5)&0x0f)
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#define DT_DAY(d) ((d)&0x1f)
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#define DT_ENCODE(m,d,y) ((((m)&0x0f)<<5)|((d)&0x1f)|(((y)&0x7f)<<9))
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#define EPOCH_WEEKDAY 2 /* Tuesday (i. e.- 0 == Sunday) */
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#define EPOCH_MONTH 1 /* January */
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#define EPOCH_DAY 1 /* 1 for January 1 */
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#define EPOCH_YEAR 1980 /* for Tues 1-1-80 epoch */
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typedef UWORD date;
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#endif
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