src/m/template.h

   1 /* machine description file template.
   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 /* Define WORDS_BIG_ENDIAN if lowest-numbered byte in a word
  22    is the most significant byte.  */
  23 #define WORDS_BIG_ENDIAN
  24
  25 /* Now define a symbol for the cpu type, if your compiler
  26    does not define it automatically.
  27    Ones defined so far include m68k and many others */
  28
  29 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
  30    the 24-bit bit field into an int.  In other words, if bit fields
  31    are always unsigned.
  32
  33    This flag only matters if you use USE_LISP_UNION_TYPE.  */
  34 #define EXPLICIT_SIGN_EXTEND
  35
  36 /* Data type of load average, as read out of kmem.  */
  37 #define LOAD_AVE_TYPE long
  38
  39 /* Convert that into an integer that is 100 for a load average of 1.0  */
  40 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
  41
  42 /* Define CANNOT_DUMP on machines where unexec does not work.
  43    Then the function dump-emacs will not be defined
  44    and temacs will do (load "loadup") automatically unless told otherwise.  */
  45 #define CANNOT_DUMP
  46
  47 /* Define VIRT_ADDR_VARIES if the virtual addresses of
  48    pure and impure space as loaded can vary, and even their
  49    relative order cannot be relied on.
  50
  51    Otherwise Emacs assumes that text space precedes data space,
  52    numerically.  */
  53 #define VIRT_ADDR_VARIES
  54
  55 /* Define NO_REMAP if memory segmentation makes it not work well
  56    to change the boundary between the text section and data section
  57    when Emacs is dumped.  If you define this, the preloaded Lisp
  58    code will not be sharable; but that's better than failing completely.  */
  59 #define NO_REMAP
  60
  61 /* After adding support for a new machine, modify the large case
  62    statement in configure.in to recognize reasonable
  63    configuration names, and add a description of the system to
  64    `etc/MACHINES'.
  65
  66    Check for any tests of $machine in configure.in, and add an entry
  67    for the new machine if needed.
  68
  69    If you've just fixed a problem in an existing configuration file,
  70    you should also check `etc/MACHINES' to make sure its descriptions
  71    of known problems in that configuration should be updated.  */
  72
  73 /* arch-tag: d7dae0a9-4f99-4939-bef9-5738e1f33955
  74    (do not change this comment) */