src/m/ibms390.h

   1 /* machine description file template.
   2    Copyright (C) 1985, 1986, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
   3                  2008, 2009, 2010 Free Software Foundation, Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software: you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation, either version 3 of the License, or
  10 (at your option) any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20
  21 /* The following line tells the configuration script what sort of
  22    operating system this machine is likely to run.
  23    USUAL-OPSYS="<name of system .h file here, without the s- or .h>"  */
  24
  25 /* Define WORDS_BIG_ENDIAN if lowest-numbered byte in a word
  26    is the most significant byte.  */
  27
  28 #define WORDS_BIG_ENDIAN
  29
  30 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  31  * group of arguments and treat it as an array of the arguments.  */
  32
  33 #define NO_ARG_ARRAY
  34
  35 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
  36    the 24-bit bit field into an int.  In other words, if bit fields
  37    are always unsigned.
  38
  39    This flag only matters if you use USE_LISP_UNION_TYPE.  */
  40
  41 #define EXPLICIT_SIGN_EXTEND
  42
  43 /* Data type of load average, as read out of kmem.  */
  44
  45 #define LOAD_AVE_TYPE long
  46
  47 /* Convert that into an integer that is 100 for a load average of 1.0  */
  48
  49 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
  50
  51 /* Define VIRT_ADDR_VARIES if the virtual addresses of
  52    pure and impure space as loaded can vary, and even their
  53    relative order cannot be relied on.
  54
  55    Otherwise Emacs assumes that text space precedes data space,
  56    numerically.  */
  57
  58 #define VIRT_ADDR_VARIES
  59
  60 /* arch-tag: d8a0ffa4-a8f0-4736-90d3-7fd7b21b8314
  61    (do not change this comment) */