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1 /* Machine description file for Windows NT.
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2
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3 Copyright (C) 1993, 1994 Free Software Foundation, Inc.
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4
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5 This file is part of GNU Emacs.
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6
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7 GNU Emacs is free software; you can redistribute it and/or modify
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 2, or (at your option)
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10 any later version.
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11
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12 GNU Emacs is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GNU Emacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: FSF 19.31. */
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23
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24 /* The following line tells the configuration script what sort of
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25 operating system this machine is likely to run.
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26 USUAL-OPSYS="<name of system .h file here, without the s- or .h>" */
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27
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28 /* Define BIG_ENDIAN iff lowest-numbered byte in a word
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29 is the most significant byte. */
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30
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31 /* #define BIG_ENDIAN */
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32
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33 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
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34 * group of arguments and treat it as an array of the arguments. */
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35
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36 #define NO_ARG_ARRAY
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37
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38 /* Define WORD_MACHINE if addresses and such have
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39 * to be corrected before they can be used as byte counts. */
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40
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41 #define WORD_MACHINE
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42
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43 /* Now define a symbol for the cpu type, if your compiler
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44 does not define it automatically:
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45 Ones defined so far include vax, m68000, ns16000, pyramid,
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46 orion, tahoe, APOLLO and many others */
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47
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48 /* Use type int rather than a union, to represent Lisp_Object */
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49 /* This is desirable for most machines. */
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50
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51 #define NO_UNION_TYPE
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52
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53 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
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54 the 24-bit bit field into an int. In other words, if bit fields
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55 are always unsigned.
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56
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57 If you use NO_UNION_TYPE, this flag does not matter. */
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58
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59 #define EXPLICIT_SIGN_EXTEND
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60
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61 /* Data type of load average, as read out of kmem. */
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62
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63 #define LOAD_AVE_TYPE long
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64
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65 /* Convert that into an integer that is 100 for a load average of 1.0 */
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66
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67 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
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68
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69 /* Define CANNOT_DUMP on machines where unexec does not work.
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70 Then the function dump-emacs will not be defined
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71 and temacs will do (load "loadup") automatically unless told otherwise. */
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72
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73 /*
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74 #define CANNOT_DUMP 1
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75 #define CANNOT_UNEXEC 1
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76 */
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77
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78 /* Start and end of text and data. */
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79 #define DATA_END get_data_end ()
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80 #define DATA_START get_data_start ()
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81
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82 /* Define VIRT_ADDR_VARIES if the virtual addresses of
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83 pure and impure space as loaded can vary, and even their
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84 relative order cannot be relied on.
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85
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86 Otherwise Emacs assumes that text space precedes data space,
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87 numerically. */
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88
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89 /* Text does precede data space, but this is never a safe assumption. */
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90 #define VIRT_ADDR_VARIES
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91
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92 /* Define C_ALLOCA if this machine does not support a true alloca
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93 and the one written in C should be used instead.
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94 Define HAVE_ALLOCA to say that the system provides a properly
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95 working alloca function and it should be used.
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96 Define neither one if an assembler-language alloca
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97 in the file alloca.s should be used. */
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98
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99 /* #define C_ALLOCA */
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100 #include <malloc.h>
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101 #define HAVE_ALLOCA
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102
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103 /* Define NO_REMAP if memory segmentation makes it not work well
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104 to change the boundary between the text section and data section
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105 when Emacs is dumped. If you define this, the preloaded Lisp
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106 code will not be sharable; but that's better than failing completely. */
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107
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108 /* #define NO_REMAP */
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109
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110 /* Some really obscure 4.2-based systems (like Sequent DYNIX)
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111 * do not support asynchronous I/O (using SIGIO) on sockets,
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112 * even though it works fine on tty's. If you have one of
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113 * these systems, define the following, and then use it in
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114 * config.h (or elsewhere) to decide when (not) to use SIGIO.
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115 *
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116 * You'd think this would go in an operating-system description file,
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117 * but since it only occurs on some, but not all, BSD systems, the
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118 * reasonable place to select for it is in the machine description
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119 * file.
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120 */
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121
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122 /* #define NO_SOCK_SIGIO */
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123
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124 /* After adding support for a new system, modify the large case
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125 statement in the `configure' script to recognize reasonable
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126 configuration names, and add a description of the system to
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127 `etc/MACHINES'.
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128
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129 If you've just fixed a problem in an existing configuration file,
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130 you should also check `etc/MACHINES' to make sure its descriptions
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131 of known problems in that configuration should be updated. */
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