src/m/ibms390.h

   1 /* Machine description file for IBM S390 in 32-bit mode
   2
   3 Copyright (C) 1985, 1986, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
   4   2008, 2009, 2010  Free Software Foundation, Inc.
   5
   6 This file is part of GNU Emacs.
   7
   8 GNU Emacs is free software: you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation, either version 3 of the License, or
  11 (at your option) any later version.
  12
  13 GNU Emacs is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21
  22 /* Define WORDS_BIG_ENDIAN if lowest-numbered byte in a word
  23    is the most significant byte.  */
  24 #define WORDS_BIG_ENDIAN
  25
  26 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
  27    the 24-bit bit field into an int.  In other words, if bit fields
  28    are always unsigned.
  29
  30    This flag only matters if you use USE_LISP_UNION_TYPE.  */
  31 #define EXPLICIT_SIGN_EXTEND
  32
  33 /* Data type of load average, as read out of kmem.  */
  34 #define LOAD_AVE_TYPE long
  35
  36 /* Convert that into an integer that is 100 for a load average of 1.0  */
  37 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
  38
  39 /* Define VIRT_ADDR_VARIES if the virtual addresses of
  40    pure and impure space as loaded can vary, and even their
  41    relative order cannot be relied on.
  42
  43    Otherwise Emacs assumes that text space precedes data space,
  44    numerically.  */
  45 #define VIRT_ADDR_VARIES
  46
  47 /* arch-tag: d8a0ffa4-a8f0-4736-90d3-7fd7b21b8314
  48    (do not change this comment) */