shared source/sscli20/tools/nmake/nmtime.h

   1 // ==++==
   2 //
   3 //
   4 //    Copyright (c) 2006 Microsoft Corporation.  All rights reserved.
   5 //
   6 //    The use and distribution terms for this software are contained in the file
   7 //    named license.txt, which can be found in the root of this distribution.
   8 //    By using this software in any fashion, you are agreeing to be bound by the
   9 //    terms of this license.
  10 //
  11 //    You must not remove this notice, or any other, from this software.
  12 //
  13 //
  14 // ==--==
  15 //  nmtime.h - defines DOS packed date and time types
  16 //
  17 // Purpose:
  18 //    This file defines the DOS packed date and time types.
  19
  20
  21 #define MASK4   0xf     // 4 bit mask
  22 #define MASK5   0x1f    // 5 bit mask
  23 #define MASK6   0x3f    // 6 bit mask
  24 #define MASK7   0x7f    // 7 bit mask
  25
  26 #define DAYLOC      0   // day value starts in bit 0
  27 #define MONTHLOC    5   // month value starts in bit 5
  28 #define YEARLOC     9   // year value starts in bit 9
  29
  30 #define SECLOC      0   // seconds value starts in bit 0
  31 #define MINLOC      5   // minutes value starts in bit 5
  32 #define HOURLOC     11  // hours value starts in bit 11
  33
  34 #define DOS_DAY(dword)      (((dword) >> DAYLOC) & MASK5)
  35 #define DOS_MONTH(dword)    (((dword) >> MONTHLOC) & MASK4)
  36 #define DOS_YEAR(dword)     (((dword) >> YEARLOC) & MASK7)
  37
  38 #define DOS_HOUR(tword) (((tword) >> HOURLOC) & MASK5)
  39 #define DOS_MIN(tword)  (((tword) >> MINLOC) & MASK6)
  40 #define DOS_SEC(tword)  (((tword) >> SECLOC) & MASK5)
  41
  42 extern time_t CDECL _dostotime_t(int, int, int, int, int, int);
  43
  44 #define XTIME(d,t)  _dostotime_t(DOS_YEAR(d),                      \
  45             DOS_MONTH(d),                          \
  46             DOS_DAY(d),                        \
  47             DOS_HOUR(t),                           \
  48             DOS_MIN(t),                        \
  49             DOS_SEC(t)*2)