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1 /* machine description file for SEQUENT SYMMETRY machines
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2 Copyright (C) 1985, 1986 Free Software Foundation, Inc.
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3
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4 This file is part of GNU Emacs.
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5
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6 GNU Emacs is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2, or (at your option)
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9 any later version.
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10
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11 GNU Emacs is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: FSF 19.31. */
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22
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23 /* CHANGE: [Eric H. Herrin II; eric@ms.uky.edu - 15 Sept 1988]
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24 * Modified the sequent.h file for the Sequent Symmetry machine.
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25 * Biggest change was to align the sections in the a.out to 4K
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26 * boundaries (this is the page size).
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27 */
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28
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29
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30 /* NOTICE: this file works for DYNIX release 3.0.12 on Sequent Symmetry
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31 * (Intel 80386) machines. Hasn't been tested on anything else.
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32 */
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33
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34 /* The following line tells the configuration script what sort of
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35 operating system this machine is likely to run.
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36 USUAL-OPSYS="bsd4-3" */
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37
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38 #include "intel386.h"
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39
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40 /* Data type of load average, as read out of kmem. */
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41
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42 #define LOAD_AVE_TYPE unsigned long
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43
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44 /* Convert that into an integer that is 100 for a load average of 1.0 */
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45
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46 #define FSCALE 1000.0
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47 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
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48
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49 /* Define C_ALLOCA if this machine does not support a true alloca
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50 and the one written in C should be used instead.
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51 Define HAVE_ALLOCA to say that the system provides a properly
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52 working alloca function and it should be used.
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53 Define neither one if an assembler-language alloca
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54 in the file alloca.s should be used. */
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55
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56 /* #define C_ALLOCA */
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57 /*#define HAVE_ALLOCA*/
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58
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59 /* Name of file the to look in
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60 for the kernel symbol table (for load average) */
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61
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62 #undef KERNEL_FILE
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63 #define KERNEL_FILE "/dynix"
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64
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65 /* Avoids a compiler bug */
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66
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67 #define TAHOE_REGISTER_BUG
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68
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69 /* Say that the text segment of a.out includes the header;
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70 the header actually occupies the first few bytes of the text segment
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71 and is counted in hdr.a_text. Furthermore, the value written
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72 in the a_text in the file must have N_ADDRADJ added to it. */
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73
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74 #define A_TEXT_OFFSET(HDR) (sizeof (HDR) + N_ADDRADJ (HDR))
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75
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76 /* This is the offset of the executable's text, from the start of the file. */
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77
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78 #define A_TEXT_SEEK(HDR) (N_TXTOFF (hdr) + sizeof (hdr))
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79
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80 /* The file sections in the Symmetry a.out must be on 4K boundaries.
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81 */
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82 #define SEGSIZ 4096
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83 #define SECTION_ALIGNMENT (SEGSIZ-1)
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84
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85 /* (short) negative-int doesn't sign-extend correctly */
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86 #define SHORT_CAST_BUG
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87
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88 /* Cause compilations to be done in parallel in ymakefile. */
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89 #define MAKE_PARALLEL &
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90
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91 /* Define how to search all pty names.
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92 This is for Dynix 3.0; delete next 5 definitions for older systems. */
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93
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94 #define PTY_MAJOR "pqrstuvwPQRSTUVW"
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95 #define PTY_MINOR "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
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96 #define PTY_ITERATION \
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97 register int ma, mi; \
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98 for (ma = 0; ma < sizeof(PTY_MAJOR) - 1; ma++) \
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99 for (mi = 0; mi < sizeof(PTY_MINOR) - 1; mi++)
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100 #define PTY_NAME_SPRINTF \
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101 sprintf (pty_name, "/dev/pty%c%c", PTY_MAJOR[ma], PTY_MINOR[mi]);
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102 #define PTY_TTY_NAME_SPRINTF \
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103 sprintf (pty_name, "/dev/tty%c%c", PTY_MAJOR[ma], PTY_MINOR[mi]);
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