src/m/powerpcle.h

   1 /* machine description file for PowerPC.
   2    Copyright (C) 1987 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs 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 GNU Emacs 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 GNU Emacs; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 /* The following line tells the configuration script what sort of
  21    operating system this machine is likely to run.
  22    USUAL-OPSYS="Solaris2.5.1 Windows/NT AIX 4.1.2"
  23
  24 /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
  25    is the most significant byte.  */
  26
  27 #undef WORDS_BIG_ENDIAN
  28
  29 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  30  * group of arguments and treat it as an array of the arguments.  */
  31
  32 #define NO_ARG_ARRAY
  33
  34 /* Say this machine is a PowerPC Refernce Platform */
  35
  36 #ifndef prep
  37 #define prep
  38 #endif
  39
  40 #ifdef __GNUC__
  41 # define C_OPTIMIZE_SWITCH -O
  42 #else
  43      /* This level of optimization is reported to work.  */
  44 # define C_OPTIMIZE_SWITCH -O2
  45 #endif
  46
  47 /* Use type int rather than a union, to represent Lisp_Object */
  48
  49 #define NO_UNION_TYPE
  50
  51 /* XINT must explicitly sign-extend */
  52
  53 #define EXPLICIT_SIGN_EXTEND
  54
  55 /* Data type of load average, as read out of kmem.  */
  56
  57 #define LOAD_AVE_TYPE long
  58
  59 /* Convert that into an integer that is 100 for a load average of 1.0  */
  60
  61 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
  62
  63 /* Define C_ALLOCA if this machine does not support a true alloca
  64    and the one written in C should be used instead.
  65    Define HAVE_ALLOCA to say that the system provides a properly
  66    working alloca function and it should be used.
  67    Define neither one if an assembler-language alloca
  68    in the file alloca.s should be used.  */
  69
  70 #define HAVE_ALLOCA
  71 #ifndef NOT_C_CODE
  72 #if __GNUC__ < 2 /* Modern versions of GCC handle alloca directly.  */
  73 #include <alloca.h>
  74 #endif
  75 #endif
  76
  77 /* Control a conditional in unexelf.c.  */
  78 #define SOLARIS_POWERPC