src/m/dpx2.h

   1 /* machine description for Bull DPX/2 range
   2    Copyright (C) 1985, 1986, 1999 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, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 /* The following line tells the configuration script what sort of
  22    operating system this machine is likely to run.
  23    USUAL-OPSYS="usg5-3"  */
  24
  25 /*
  26  * You need to either un-comment one of these lines, or copy one
  27  * of them to config.h before you include this file.
  28  * Note that some simply define a constant and others set a value.
  29  */
  30
  31 /* #define ncl_el       /* DPX/2 210,220 etc */
  32 /* #define ncl_mr 1     /* DPX/2 320,340 (and 360,380 ?) */
  33
  34 /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
  35    is the most significant byte.  */
  36
  37 #define WORDS_BIG_ENDIAN
  38
  39 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  40  * group of arguments and treat it as an array of the arguments.  */
  41
  42 #define NO_ARG_ARRAY
  43
  44 /* Define WORD_MACHINE if addresses and such have
  45  * to be corrected before they can be used as byte counts.  */
  46
  47 /* #define WORD_MACHINE /**/
  48
  49 /* Now define a symbol for the cpu type, if your compiler
  50    does not define it automatically:
  51    Ones defined so far include vax, m68000, ns16000, pyramid,
  52    orion, tahoe, APOLLO and many others */
  53
  54 /* /bin/cc on ncl_el and ncl_mr define m68k and mc68000 */
  55
  56 /* Use type int rather than a union, to represent Lisp_Object */
  57 /* This is desirable for most machines.  */
  58
  59 #define NO_UNION_TYPE
  60
  61 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
  62    the 24-bit bit field into an int.  In other words, if bit fields
  63    are always unsigned.
  64
  65    If you use NO_UNION_TYPE, this flag does not matter.  */
  66
  67 #define EXPLICIT_SIGN_EXTEND
  68
  69 /* Data type of load average, as read out of kmem.  */
  70
  71 #define LOAD_AVE_TYPE long
  72
  73 /* Convert that into an integer that is 100 for a load average of 1.0  */
  74
  75 #define FSCALE 1000.0
  76 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
  77
  78 /* Define CANNOT_DUMP on machines where unexec does not work.
  79    Then the function dump-emacs will not be defined
  80    and temacs will do (load "loadup") automatically unless told otherwise.  */
  81
  82 /*#define CANNOT_DUMP /**/
  83
  84 /* Define VIRT_ADDR_VARIES if the virtual addresses of
  85    pure and impure space as loaded can vary, and even their
  86    relative order cannot be relied on.
  87
  88    Otherwise Emacs assumes that text space precedes data space,
  89    numerically.  */
  90
  91 /* #define VIRT_ADDR_VARIES /**/
  92
  93 /* Define C_ALLOCA if this machine does not support a true alloca
  94    and the one written in C should be used instead.
  95    Define HAVE_ALLOCA to say that the system provides a properly
  96    working alloca function and it should be used.
  97    Define neither one if an assembler-language alloca
  98    in the file alloca.s should be used.  */
  99
 100 #define C_ALLOCA
 101 /* #define HAVE_ALLOCA /**/
 102
 103 /* Define NO_REMAP if memory segmentation makes it not work well
 104    to change the boundary between the text section and data section
 105    when Emacs is dumped.  If you define this, the preloaded Lisp
 106    code will not be sharable; but that's better than failing completely.  */
 107
 108 #define NO_REMAP
 109
 110 /*
 111  * end of the standard macro's
 112  */
 113
 114 /*
 115  * a neat identifier to handle source mods (if needed)
 116  */
 117 #ifndef DPX2
 118 #define DPX2
 119 #endif
 120
 121 /* Disable support for shared libraries in unexec.  */
 122
 123 #undef USG_SHARED_LIBRARIES
 124
 125 /*
 126  * if we use X11, libX11.a has these...
 127  */
 128 # undef LIB_X11_LIB
 129 # define LIB_X11_LIB -lX11
 130 # undef LIBX11_SYSTEM
 131 # define LIBX11_SYSTEM -lmalloc -lnsl
 132 # define BSTRING
 133 # define HAVE_GETWD
 134
 135 /*
 136  * we must have INET loaded so we have sockets
 137  */
 138 # define HAVE_SOCKETS
 139
 140 /*
 141  * useful if you have INET loaded
 142  */
 143 # define LIBS_MACHINE -linet
 144
 145
 146 #if (defined(ncl_mr) || defined(ncl_el)) && !defined (NBPC)
 147 # define NBPC 4096
 148 #endif
 149
 150 /*
 151  * if SIGIO is defined, much of the emacs
 152  * code assumes we are BSD !!
 153  */
 154 #define BROKEN_SIGIO
 155
 156
 157 /*
 158  * a good idea on multi-user systems :-)
 159  */
 160 #define CLASH_DETECTION         /* probably a good idea */
 161
 162
 163 /*
 164  * sysdep.c(sys_suspend) works fine with emacs-18.58
 165  * and BOS 02.00.45, if you have an earler version
 166  * of Emacs and/or BOS, or have problems, or just prefer
 167  * to start a sub-shell rather than suspend-emacs,
 168  * un-comment out the next line.
 169  */
 170 /* # define BROKEN_SIGTSTP /* make suspend-emacs spawn a sub-shell */
 171 #ifdef NOMULTIPLEJOBS
 172 # undef NOMULTIPLEJOBS
 173 #endif
 174 /*
 175  * no we don't want this at all
 176  */
 177 #ifdef USG_JOBCTRL
 178 # undef USG_JOBCTRL
 179 #endif
 180
 181 /*
 182  * but we have that
 183 */
 184 #define GETPGRP_NO_ARG
 185
 186 /* select also needs this header file--but not in ymakefile.  */
 187 #ifndef NOT_C_CODE
 188 #include <sys/types.h>
 189 #include <sys/select.h>
 190 #endif
 191
 192 #define TEXT_START 0
 193
 194 /*
 195  * Define the direction of stack growth.
 196  */
 197
 198 #define STACK_DIRECTION -1
 199
 200 /* we have termios */
 201 #undef HAVE_TERMIO
 202 #define HAVE_TERMIOS
 203 #define HAVE_TCATTR
 204
 205 /* we also have this */
 206 #define HAVE_PTYS
 207 #define SYSV_PTYS
 208
 209 /* It doesn't seem we have sigpause */
 210 #undef HAVE_SYSV_SIGPAUSE
 211
 212 #define POSIX_SIGNALS
 213
 214 /* We don't need the definition from usg5-3.h with POSIX_SIGNALS.  */
 215 #undef sigsetmask
 216
 217
 218 /* on bos2.00.45 there is a bug that makes the F_SETOWN fcntl() call
 219    enters in an infinite loop. Avoid calling it  */
 220 #define F_SETOWN_BUG
 221
 222 /* system closedir sometimes complains about wrong descriptor
 223    for no apparent reasons. Use the provided closedir in sysdep.c instead */
 224 #ifdef HAVE_CLOSEDIR
 225 #undef HAVE_CLOSEDIR
 226 #endif
 227
 228 /* Send signals to subprocesses by "typing" signal chars at them.  */
 229 #define SIGNALS_VIA_CHARACTERS
 230
 231 /* This is to prevent memory clobbering on the DPX/2 200.  */
 232 #define LD_SWITCH_MACHINE -N -T32
 233
 234  /* end of dpx2.h */
 235
 236