src/machine.h

   1 /* Define machine-dependencies for bison,
   2    Copyright (C) 1984, 1989 Free Software Foundation, Inc.
   3
   4 This file is part of Bison, the GNU Compiler Compiler.
   5
   6 Bison is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 Bison is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with Bison; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 #ifdef  eta10
  21 #define MAXSHORT        2147483647
  22 #define MINSHORT        -2147483648
  23 #else
  24 #define MAXSHORT        32767
  25 #define MINSHORT        -32768
  26 #endif
  27
  28 #if defined (MSDOS) && !defined (__GO32__)
  29 #define BITS_PER_WORD   16
  30 #define MAXTABLE        16383
  31 #else
  32 #define BITS_PER_WORD   32
  33 #define MAXTABLE        32767
  34 #endif
  35
  36 #define WORDSIZE(n)     (((n) + BITS_PER_WORD - 1) / BITS_PER_WORD)
  37 #define SETBIT(x, i)    ((x)[(i)/BITS_PER_WORD] |= (1<<((i) % BITS_PER_WORD)))
  38 #define RESETBIT(x, i)  ((x)[(i)/BITS_PER_WORD] &= ~(1<<((i) % BITS_PER_WORD)))
  39 #define BITISSET(x, i)  (((x)[(i)/BITS_PER_WORD] & (1<<((i) % BITS_PER_WORD))) != 0)