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 1, 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 /* CHANGE: [Eric H. Herrin II; eric@ms.uky.edu - 15 Sept 1988]
  21  * Modified the sequent.h file for the Sequent Symmetry machine.
  22  * Biggest change was to align the sections in the a.out to 4K
  23  * boundaries (this is the page size).
  24  */
  25
  26
  27 /* NOTICE: this file works for DYNIX release 3.0.12 on Sequent Symmetry
  28  * (Intel 80386) machines.  Hasn't been tested on anything else.
  29  */
  30
  31 /* The following line tells the configuration script what sort of
  32    operating system this machine is likely to run.
  33    USUAL-OPSYS="bsd4-3"  */
  34
  35 #include "intel386.h"
  36
  37 /* Data type of load average, as read out of kmem.  */
  38
  39 #define LOAD_AVE_TYPE unsigned long
  40
  41 /* Convert that into an integer that is 100 for a load average of 1.0  */
  42
  43 #define FSCALE  1000.0
  44 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
  45
  46 /* Define C_ALLOCA if this machine does not support a true alloca
  47    and the one written in C should be used instead.
  48    Define HAVE_ALLOCA to say that the system provides a properly
  49    working alloca function and it should be used.
  50    Define neither one if an assembler-language alloca
  51    in the file alloca.s should be used.  */
  52
  53 /* #define C_ALLOCA */
  54 /*#define HAVE_ALLOCA*/
  55
  56 /* Name of file the to look in
  57    for the kernel symbol table (for load average) */
  58
  59 #undef KERNEL_FILE
  60 #define KERNEL_FILE "/dynix"
  61
  62 /* define HAVE_GETPAGESIZE for Symmetry */
  63 #define HAVE_GETPAGESIZE
  64
  65 /* Avoids a compiler bug */
  66
  67 #define TAHOE_REGISTER_BUG
  68
  69 /* Say that the text segment of a.out includes the header;
  70    the header actually occupies the first few bytes of the text segment
  71    and is counted in hdr.a_text.  Furthermore, the value written
  72    in the a_text in the file must have N_ADDRADJ added to it.  */
  73
  74 #define A_TEXT_OFFSET(HDR) (sizeof (HDR) + N_ADDRADJ (HDR))
  75
  76 /* This is the offset of the executable's text, from the start of the file.  */
  77
  78 #define A_TEXT_SEEK(HDR) (N_TXTOFF (hdr) + sizeof (hdr))
  79
  80 /* The file sections in the Symmetry a.out must be on 4K boundaries.
  81  */
  82 #define SEGSIZ 4096
  83 #define SECTION_ALIGNMENT       (SEGSIZ-1)
  84
  85 /* (short) negative-int doesn't sign-extend correctly */
  86 #define SHORT_CAST_BUG
  87
  88 /* Cause compilations to be done in parallel in ymakefile.  */
  89 #define MAKE_PARALLEL &
  90
  91 /* Define how to search all pty names.
  92    This is for Dynix 3.0; delete next 5 definitions for older systems.  */
  93
  94 #define PTY_MAJOR "pqrstuvwPQRSTUVW"
  95 #define PTY_MINOR "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
  96 #define PTY_ITERATION                                   \
  97   register int ma, mi;                                  \
  98   for (ma = 0; ma < sizeof(PTY_MAJOR) - 1; ma++)        \
  99     for (mi = 0; mi < sizeof(PTY_MINOR) - 1; mi++)
 100 #define PTY_NAME_SPRINTF \
 101   sprintf (ptyname, "/dev/pty%c%c", PTY_MAJOR[ma], PTY_MINOR[mi]);
 102 #define PTY_TTY_NAME_SPRINTF \
 103   sprintf (ptyname, "/dev/tty%c%c", PTY_MAJOR[ma], PTY_MINOR[mi]);