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1 /* machine description file for clipper
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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 /* Now define a symbol for the cpu type, if your compiler
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24 does not define it automatically */
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25
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26 #define clipper 1
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27
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28 /* crt0.c should define a symbol `start' and do .globl with a dot. */
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29
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30 #define DOT_GLOBAL_START
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31
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32 /* USG systems I know of running on Vaxes do not actually
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33 support the load average, so disable it for them. */
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34
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35 /* Data type of load average, as read out of kmem. */
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36
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37 #define LOAD_AVE_TYPE double
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38
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39 /* Convert that into an integer that is 100 for a load average of 1.0 */
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40
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41 #define LOAD_AVE_CVT(x) ((int) ((x) * 100.0))
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42
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43 /* Define CANNOT_DUMP on machines where unexec does not work.
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44 Then the function dump-emacs will not be defined
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45 and temacs will do (load "loadup") automatically unless told otherwise. */
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46 /* #define CANNOT_DUMP */
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47
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48 /* Define C_ALLOCA if this machine does not support a true alloca
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49 and the one written in C should be used instead.
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50 Define HAVE_ALLOCA to say that the system provides a properly
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51 working alloca function and it should be used.
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52 Define neither one if an assembler-language alloca
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53 in the file alloca.s should be used. */
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54
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55 #define C_ALLOCA
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56
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57 /* Define NO_REMAP if memory segmentation makes it not work well
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58 to change the boundary between the text section and data section
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59 when Emacs is dumped. If you define this, the preloaded Lisp
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60 code will not be sharable; but that's better than failing completely. */
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61
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62 /* #define NO_REMAP */
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63
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64 #ifdef USG
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65 #define TEXT_START 0
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66 #endif /* USG */
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67
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68 #define LD_TEXT_START_ADDR 8000
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