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428
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1 /* machine description file for AT&T UNIX PC model 7300
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2 Copyright (C) 1986 Free Software Foundation, Inc.
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3 Modified for this machine by mtxinu!rtech!gonzo!daveb
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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 XEmacs; 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="usg5-2-2" */
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27
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28 /* Now define a symbol for the cpu type, if your compiler
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29 does not define it automatically:
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30 vax, m68000, ns16000 are the ones defined so far. */
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31
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32 # ifndef mc68k
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33 # define mc68k
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34 # endif
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35 #ifndef m68k
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36 #define m68k
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37 #endif
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38
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39 /* Cause crt0.c to define errno. */
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40
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41 #define NEED_ERRNO
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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 /* These are commented out since it is not supported by this machine. */
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45
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46 /* #define LOAD_AVE_TYPE long */
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47
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48 /* Convert that into an integer that is 100 for a load average of 1.0 */
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49
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50 /* #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0) */
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51
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52 #ifdef __GNUC__
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53
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54 #define HAVE_ALLOCA
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55
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56 #else
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57
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58 #define SWITCH_ENUM_BUG
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59 #define C_ALLOCA
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60 #define STACK_DIRECTION -1
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61
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62 #endif
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63
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64 /* We don't have memmove. */
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65 #define memmove(d, s, n) safe_bcopy (s, d, n)
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66
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67 /* These three lines were new in 18.50. They were said to permit
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68 a demand-paged executable, but someone else says they don't work.
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69 Someone else says they do. They didn't work because errno was an
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70 initialized variable in crt0.c, and because of %splimit (also therein),
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71 both of which have been fixed now. */
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72 #define SECTION_ALIGNMENT 0x03ff
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73 #define SEGMENT_MASK 0xffff
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74 #define LD_SWITCH_MACHINE "-z"
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75
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76 /* Insist on using cc when compiling this. GCC may have been
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77 configured to use GAS syntax, which causes problems. */
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78 #define CRT0_COMPILE "cc -c -O -Demacs"
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