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428
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1 /* machine description file for U-station (Nihon Unisys, SS5E; Sumitomo Denkoh, U-Station E30).
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2 Copyright (C) 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 /* Define WORD_MACHINE if addresses and such have
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28 * to be corrected before they can be used as byte counts. */
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29
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30 #undef WORD_MACHINE
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31
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32 /* Now define a symbol for the cpu type, if your compiler
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33 does not define it automatically:
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34 vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO
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35 are the ones defined so far. */
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36 /* Masscomp predefines mc68000. */
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37
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38 #define m68000 mc68000
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39
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40 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
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41 the bit field into an int. In other words, if bit fields
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42 are always unsigned.
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43
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44 If you use NO_UNION_TYPE, this flag does not matter. */
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45
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46 #undef EXPLICIT_SIGN_EXTEND
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47
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48 /* Data type of load average, as read out of kmem. */
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49
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50 #define LOAD_AVE_TYPE double
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51
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52 /* Convert that into an integer that is 100 for a load average of 1.0 */
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53
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54 #define LOAD_AVE_CVT(x) ((int) ((x) * 100.0))
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55
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56 /* Define CANNOT_DUMP on machines where unexec does not work.
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57 Then the function dump-emacs will not be defined
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58 and temacs will do (load "loadup") automatically unless told otherwise. */
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59
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60 #undef CANNOT_DUMP
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61
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62 /* Define VIRT_ADDR_VARIES if the virtual addresses of
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63 pure and impure space as loaded can vary, and even their
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64 relative order cannot be relied on.
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65
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66 Otherwise Emacs assumes that data space precedes text space,
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67 numerically. */
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68
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69 #undef VIRT_ADDR_VARIES
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70
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71 /* Define C_ALLOCA if this machine does not support a true alloca
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72 and the one written in C should be used instead.
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73 Define HAVE_ALLOCA to say that the system provides a properly
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74 working alloca function and it should be used.
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75 Define neither one if an assembler-language alloca
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76 in the file alloca.s should be used. */
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77
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78 /* On return from a subroutine, the 68020 compiler restores old contents of
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79 register variables relative to sp, so alloca() screws up such routines.
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80 The following definitions should work on all Masscomps. On the MC-5500
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81 (a 68000) one can #undef C_ALLOCA and #define HAVE_ALLOCA. */
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82
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83 #define C_ALLOCA
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84 #undef HAVE_ALLOCA
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85
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86 /* Define NO_REMAP if memory segmentation makes it not work well
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87 to change the boundary between the text section and data section
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88 when Emacs is dumped. If you define this, the preloaded Lisp
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89 code will not be sharable; but that's better than failing completely. */
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90
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91 #undef NO_REMAP
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92
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93 /* Name of file the to look in
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94 for the kernel symbol table (for load average) */
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95
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96 #define KERNEL_FILE "/unix"
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97
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98 /* This triggers some stuff to avoid a compiler bug */
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99
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100 #define MASSC_REGISTER_BUG
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101
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102 /* Prevent -lg from being used for debugging. Not implemented? */
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103
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104 #define LIBS_DEBUG
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105
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106 /* -lnet is not standard library */
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107
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108 #undef LIBS_SYSTEM
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109
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110 /* Compiler's bug */
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111
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112 #define SWITCH_ENUM_BUG
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113
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114 /* Termcap is available */
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115
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116 #define LIBS_TERMCAP "-ltermcap"
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117
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118 #define EXEC_PAGESIZE 1024
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119 #define SYSTEM_PURESIZE_EXTRA 10000
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120
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121
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122 #undef SIGTSTP
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123 #undef HAVE_TIMEVAL
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