code.delx.au - gnu-emacs/blob - src/m/symmetry.h

   1 /* machine description file for SEQUENT SYMMETRY machines
   2    Copyright (C) 1985, 1986, 2002 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 /* CHANGE: [Eric H. Herrin II; eric@ms.uky.edu - 15 Sept 1988]
  22  * Modified the sequent.h file for the Sequent Symmetry machine.
  23  * Biggest change was to align the sections in the a.out to 4K
  24  * boundaries (this is the page size).
  25  */
  26
  27
  28 /* NOTICE: this file works for DYNIX release 3.0.12 on Sequent Symmetry
  29  * (Intel 80386) machines.  Hasn't been tested on anything else.
  30  */
  31
  32 /* The following line tells the configuration script what sort of
  33    operating system this machine is likely to run.
  34    USUAL-OPSYS="bsd4-3"  */
  35
  36 #include "intel386.h"
  37
  38 /* Data type of load average, as read out of kmem.  */
  39
  40 #define LOAD_AVE_TYPE unsigned long
  41
  42 /* Convert that into an integer that is 100 for a load average of 1.0  */
  43
  44 #define FSCALE  1000.0
  45 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
  46
  47 /* Name of file the to look in
  48    for the kernel symbol table (for load average) */
  49
  50 #undef KERNEL_FILE
  51 #define KERNEL_FILE "/dynix"
  52
  53 /* Avoids a compiler bug */
  54
  55 #define TAHOE_REGISTER_BUG
  56
  57 /* Say that the text segment of a.out includes the header;
  58    the header actually occupies the first few bytes of the text segment
  59    and is counted in hdr.a_text.  Furthermore, the value written
  60    in the a_text in the file must have N_ADDRADJ added to it.  */
  61
  62 #define A_TEXT_OFFSET(HDR) (sizeof (HDR) + N_ADDRADJ (HDR))
  63
  64 /* This is the offset of the executable's text, from the start of the file.  */
  65
  66 #define A_TEXT_SEEK(HDR) (N_TXTOFF (hdr) + sizeof (hdr))
  67
  68 /* The file sections in the Symmetry a.out must be on 4K boundaries.
  69  */
  70 #define SEGSIZ 4096
  71 #define SECTION_ALIGNMENT       (SEGSIZ-1)
  72
  73 /* (short) negative-int doesn't sign-extend correctly */
  74 #define SHORT_CAST_BUG
  75
  76 /* Cause compilations to be done in parallel in ymakefile.  */
  77 #define MAKE_PARALLEL &
  78
  79 /* Define how to search all pty names.
  80    This is for Dynix 3.0; delete next 5 definitions for older systems.  */
  81
  82 #define PTY_MAJOR "pqrstuvwPQRSTUVW"
  83 #define PTY_MINOR "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
  84 #define PTY_ITERATION                                   \
  85   register int ma, mi;                                  \
  86   for (ma = 0; ma < sizeof(PTY_MAJOR) - 1; ma++)        \
  87     for (mi = 0; mi < sizeof(PTY_MINOR) - 1; mi++)
  88 #define PTY_NAME_SPRINTF \
  89   sprintf (pty_name, "/dev/pty%c%c", PTY_MAJOR[ma], PTY_MINOR[mi]);
  90 #define PTY_TTY_NAME_SPRINTF \
  91   sprintf (pty_name, "/dev/tty%c%c", PTY_MAJOR[ma], PTY_MINOR[mi]);