src/m/sparc.h

   1 /* machine description file for Sun 4 SPARC.
   2    Copyright (C) 1987, 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 /* The following line tells the configuration script what sort of
  21    operating system this machine is likely to run.
  22    USUAL-OPSYS="note"
  23
  24 NOTE-START
  25 Use -opsystem=sunos4 for operating system version 4, and
  26 -opsystem=bsd4-2 for earlier versions.
  27 NOTE-END  */
  28
  29 /* Define WORDS_BIG_ENDIAN if lowest-numbered byte in a word
  30    is the most significant byte.  */
  31
  32 #define WORDS_BIG_ENDIAN
  33
  34 /* __sparc__ is defined by the compiler by default.  */
  35
  36 /* XINT must explicitly sign-extend
  37    This flag only matters if you use USE_LISP_UNION_TYPE.  */
  38
  39 #define EXPLICIT_SIGN_EXTEND
  40
  41 /* Data type of load average, as read out of kmem.  */
  42
  43 #define LOAD_AVE_TYPE long
  44
  45 /* Convert that into an integer that is 100 for a load average of 1.0  */
  46
  47 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
  48
  49 /* Mask for address bits within a memory segment */
  50
  51 #define SEGMENT_MASK (SEGSIZ - 1)
  52
  53 #ifdef __arch64__               /* GCC, 64-bit ABI.  */
  54 #define BITS_PER_LONG 64
  55
  56 #ifndef _LP64
  57 #define _LP64                   /* Done on Alpha -- not sure if it
  58                                    should be here.  -- fx */
  59 #endif
  60 #endif
  61
  62 /* arch-tag: 0a6f7882-33fd-4811-9832-7466c51e50f7
  63    (do not change this comment) */