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1 /* machine description for Bull DPX/2 range
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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 /* The following line tells the configuration script what sort of
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24 operating system this machine is likely to run.
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25 USUAL-OPSYS="usg5-3" */
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26
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27 /*
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28 * You need to either un-comment one of these lines, or copy one
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29 * of them to config.h before you include this file.
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30 * Note that some simply define a constant and others set a value.
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31 */
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32
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33 /* #define ncl_el /* DPX/2 210,220 etc */
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34 /* #define ncl_mr 1 /* DPX/2 320,340 (and 360,380 ?) */
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35
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36 /* Now define a symbol for the cpu type, if your compiler
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37 does not define it automatically:
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38 Ones defined so far include vax, m68000, ns16000, pyramid,
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39 orion, tahoe, APOLLO and many others */
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40
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41 /* /bin/cc on ncl_el and ncl_mr define m68k and mc68000 */
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42
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43 /* Data type of load average, as read out of kmem. */
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44
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45 #define LOAD_AVE_TYPE long
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46
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47 /* Convert that into an integer that is 100 for a load average of 1.0 */
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48
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49 #define FSCALE 1000.0
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50 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
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51
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52 /* Define CANNOT_DUMP on machines where unexec does not work.
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53 Then the function dump-emacs will not be defined
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54 and temacs will do (load "loadup") automatically unless told otherwise. */
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55
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56 /*#define CANNOT_DUMP /**/
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57
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58 /* Define VIRT_ADDR_VARIES if the virtual addresses of
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59 pure and impure space as loaded can vary, and even their
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60 relative order cannot be relied on.
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61
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62 Otherwise Emacs assumes that text space precedes data space,
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63 numerically. */
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64
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65 /* #define VIRT_ADDR_VARIES /**/
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66
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67 /* Define C_ALLOCA if this machine does not support a true alloca
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68 and the one written in C should be used instead.
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69 Define HAVE_ALLOCA to say that the system provides a properly
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70 working alloca function and it should be used.
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71 Define neither one if an assembler-language alloca
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72 in the file alloca.s should be used. */
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73
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74 #define C_ALLOCA
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75 /* #define HAVE_ALLOCA /**/
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76
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77 /* Define NO_REMAP if memory segmentation makes it not work well
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78 to change the boundary between the text section and data section
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79 when Emacs is dumped. If you define this, the preloaded Lisp
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80 code will not be sharable; but that's better than failing completely. */
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81
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82 #define NO_REMAP
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83
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84 /*
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85 * end of the standard macro's
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86 */
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87
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88 /*
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89 * a neat identifier to handle source mods (if needed)
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90 */
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91 #ifndef DPX2
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92 #define DPX2
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93 #endif
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94
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95 /* Disable support for shared libraries in unexec. */
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96
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97 #undef USG_SHARED_LIBRARIES
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98
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99 /*
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100 * if we use X11, libX11.a has these...
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101 */
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102 # undef LIB_X11_LIB
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163
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103 # define LIB_X11_LIB "-lX11"
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0
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104 # undef LIBX11_SYSTEM
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163
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105 # define LIBX11_SYSTEM "-lmalloc -lnsl"
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0
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106
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107 /*
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108 * useful if you have INET loaded
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109 */
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163
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110 # define LIBS_MACHINE "-linet"
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0
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111
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112
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113 #if (defined(ncl_mr) || defined(ncl_el)) && !defined (NBPC)
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114 # define NBPC 4096
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115 #endif
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116
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117 /*
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118 * if SIGIO is defined, much of the emacs
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119 * code assumes we are BSD !!
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120 */
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121 #ifdef SIGIO
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122 #define BROKEN_SIGIO
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123 #endif
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124
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125
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126 #ifdef SIGTSTP
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127 /*
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128 * sysdep.c(sys_suspend) works fine with emacs-18.58
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129 * and BOS 02.00.45, if you have an earler version
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130 * of Emacs and/or BOS, or have problems, or just prefer
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131 * to start a sub-shell rather than suspend-emacs,
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132 * un-comment out the next line.
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133 */
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134 /* # undef SIGTSTP /* make suspend-emacs spawn a sub-shell */
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135 #endif
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136 /*
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137 * no we don't want this at all
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138 */
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139 #ifdef USG_JOBCTRL
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140 # undef USG_JOBCTRL
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141 #endif
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142
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143 /* select also needs this header file--but not in ymakefile. */
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144 #ifndef NOT_C_CODE
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145 #include <sys/types.h>
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146 #include <sys/select.h>
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147 #endif
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148
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149 #define TEXT_START 0
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150
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151 /*
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152 * Define the direction of stack growth.
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153 */
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154
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155 #define STACK_DIRECTION -1
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156
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157 /* we also have this */
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158 #define HAVE_PTYS
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159 #define SYSV_PTYS
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160
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161 /* on bos2.00.45 there is a bug that makes the F_SETOWN fcntl() call
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162 enters in an infinite loop. Avoid calling it */
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163 #define F_SETOWN_BUG
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164
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165 /* system closedir sometimes complains about wrong descriptor
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166 for no apparent reasons. Use the provided closedir in sysdep.c instead */
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167 #ifdef HAVE_CLOSEDIR
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168 #undef HAVE_CLOSEDIR
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169 #endif
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170
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171 /* This is to prevent memory clobbering on the DPX/2 200. */
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163
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172 #define LD_SWITCH_MACHINE "-N -T32"
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173
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174 /* end of dpx2.h */
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175
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176
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