view src/m/powerpc.h @ 97:498bf5da1c90

Added tag r20-0final for changeset dbb370e3c29e
author cvs
date Mon, 13 Aug 2007 09:12:43 +0200
parents 376386a54a3c
children 538048ae2ab8
line wrap: on
line source

/* machine description file for Power PC
   Copyright (C) 1987, 1994 Free Software Foundation, Inc.
   Copyright (C) 1995 Board of Trustees, University of Illinois

This file is part of XEmacs.

XEmacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

XEmacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with XEmacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* The following line tells the configuration script what sort of 
   operating system this machine is likely to run.
   USUAL-OPSYS="solaris2-5" */

#ifdef NOT_C_CODE
# define POWERPC
#else
# ifndef powerpc
#  define powerpc
# endif
#endif

#ifdef __GNUC__
# define C_OPTIMIZE_SWITCH -O
#else
/* XEmacs change */
# ifdef USE_LCC
#  define C_OPTIMIZE_SWITCH -O4 -Oi
# else
     /* This level of optimization is reported to work.  */
#  define C_OPTIMIZE_SWITCH -O2
# endif
#endif

/* XINT must explicitly sign-extend */

#define EXPLICIT_SIGN_EXTEND

/* Data type of load average, as read out of kmem.  */

#define LOAD_AVE_TYPE long

/* Convert that into an integer that is 100 for a load average of 1.0  */

#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)

/* Define C_ALLOCA if this machine does not support a true alloca
   and the one written in C should be used instead.
   Define HAVE_ALLOCA to say that the system provides a properly
   working alloca function and it should be used.
   Define neither one if an assembler-language alloca
   in the file alloca.s should be used.  */

#define HAVE_ALLOCA
#ifndef NOT_C_CODE
#if __GNUC__ < 2 /* Modern versions of GCC handle alloca directly.  */
#include <alloca.h>
#endif
#endif

/* Solaris defines alloca to __builtin_alloca & does not provide a prototype */
#ifdef __SUNPRO_C
#  ifndef NOT_C_CODE
#    include <alloca.h>
#  endif
#endif