src/m/symmetry.h

   1 /* machine description file for SEQUENT SYMMETRY machines
   2    Copyright (C) 1985, 1986 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 /* Define C_ALLOCA if this machine does not support a true alloca
  48    and the one written in C should be used instead.
  49    Define HAVE_ALLOCA to say that the system provides a properly
  50    working alloca function and it should be used.
  51    Define neither one if an assembler-language alloca
  52    in the file alloca.s should be used.  */
  53
  54 /* #define C_ALLOCA */
  55 /*#define HAVE_ALLOCA*/
  56
  57 /* Name of file the to look in
  58    for the kernel symbol table (for load average) */
  59
  60 #undef KERNEL_FILE
  61 #define KERNEL_FILE "/dynix"
  62
  63 /* Avoids a compiler bug */
  64
  65 #define TAHOE_REGISTER_BUG
  66
  67 /* Say that the text segment of a.out includes the header;
  68    the header actually occupies the first few bytes of the text segment
  69    and is counted in hdr.a_text.  Furthermore, the value written
  70    in the a_text in the file must have N_ADDRADJ added to it.  */
  71
  72 #define A_TEXT_OFFSET(HDR) (sizeof (HDR) + N_ADDRADJ (HDR))
  73
  74 /* This is the offset of the executable's text, from the start of the file.  */
  75
  76 #define A_TEXT_SEEK(HDR) (N_TXTOFF (hdr) + sizeof (hdr))
  77
  78 /* The file sections in the Symmetry a.out must be on 4K boundaries.
  79  */
  80 #define SEGSIZ 4096
  81 #define SECTION_ALIGNMENT       (SEGSIZ-1)
  82
  83 /* (short) negative-int doesn't sign-extend correctly */
  84 #define SHORT_CAST_BUG
  85
  86 /* Cause compilations to be done in parallel in ymakefile.  */
  87 #define MAKE_PARALLEL &
  88
  89 /* Define how to search all pty names.
  90    This is for Dynix 3.0; delete next 5 definitions for older systems.  */
  91
  92 #define PTY_MAJOR "pqrstuvwPQRSTUVW"
  93 #define PTY_MINOR "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
  94 #define PTY_ITERATION                                   \
  95   register int ma, mi;                                  \
  96   for (ma = 0; ma < sizeof(PTY_MAJOR) - 1; ma++)        \
  97     for (mi = 0; mi < sizeof(PTY_MINOR) - 1; mi++)
  98 #define PTY_NAME_SPRINTF \
  99   sprintf (pty_name, "/dev/pty%c%c", PTY_MAJOR[ma], PTY_MINOR[mi]);
 100 #define PTY_TTY_NAME_SPRINTF \
 101   sprintf (pty_name, "/dev/tty%c%c", PTY_MAJOR[ma], PTY_MINOR[mi]);