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1 /* alliant-2800.h - Alliant FX/2800 machine running Concentrix 2800.
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2 Copyright (C) 1990 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="bsd4-3" */
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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
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37 #define ALLIANT
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38 #define ALLIANT_2800
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39 #define sun /* Use X support for Sun keyboard stuff. */
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163
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40 #define C_OPTIMIZE_SWITCH "-Og" /* No concurrent code allowed here. */
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0
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41
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42 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
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43 the bit field into an int. In other words, if bit fields
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44 are always unsigned.
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45
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46 If you use NO_UNION_TYPE, this flag does not matter. */
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47 /* On Alliants, bitfields are unsigned. */
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48
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49 #define EXPLICIT_SIGN_EXTEND
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50
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51 /* Concentrix uses a different kernel symbol for load average. */
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52
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53 #undef LDAV_SYMBOL /* Undo definition in s-bsd4-2.h */
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54 #define LDAV_SYMBOL "_Loadavg"
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55
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56 /* Data type of load average, as read out of kmem. */
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57
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58 #define LOAD_AVE_TYPE long
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59
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60 /* Convert that into an integer that is 100 for a load average of 1.0 */
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61
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62 #define LOAD_AVE_CVT(x) (x * 100 / LOADAVG_SCALE)
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63
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64 /* include <sys/param.h> for the definition of LOADAVG_SCALE, and also
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65 LOADAVG_SIZE, the number of items in the Loadavg array. */
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66
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67 /* Define CANNOT_DUMP on machines where unexec does not work.
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68 Then the function dump-emacs will not be defined
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69 and temacs will do (load "loadup") automatically unless told otherwise. */
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70
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71 /* #define CANNOT_DUMP */
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163
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72 #define UNEXEC "unexfx2800.o"
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73 #define LIBS_MACHINE "-lalliant"
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0
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74
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75 /* Define VIRT_ADDR_VARIES if the virtual addresses of
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76 pure and impure space as loaded can vary, and even their
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77 relative order cannot be relied on.
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78
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79 Otherwise Emacs assumes that text space precedes data space,
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80 numerically. */
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81
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82 #undef VIRT_ADDR_VARIES
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83
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84 /* Define C_ALLOCA if this machine does not support a true alloca
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85 and the one written in C should be used instead.
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86 Define HAVE_ALLOCA to say that the system provides a properly
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87 working alloca function and it should be used.
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88 Define neither one if an assembler-language alloca
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89 in the file alloca.s should be used. */
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90
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91 #undef C_ALLOCA
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92 #define HAVE_ALLOCA
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93
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94 /* Define NO_REMAP if memory segmentation makes it not work well
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95 to change the boundary between the text section and data section
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96 when Emacs is dumped. If you define this, the preloaded Lisp
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97 code will not be sharable; but that's better than failing completely. */
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98 /* Actually, Alliant CONCENTRIX does paging "right":
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99 data pages are copy-on-write, which means that the pure data areas
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100 are shared automatically and remapping is not necessary. */
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101
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102 #define NO_REMAP
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103
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104 /* Alliant needs special crt0.o because system version is not reentrant */
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105
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163
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106 #define START_FILES "crt0.o"
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0
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107
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108 /* Alliant dependent code for dumping executing image.
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109 See crt0.c code for alliant. */
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110
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111 #define ADJUST_EXEC_HEADER {\
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112 extern int _curbrk, _setbrk;\
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113 _setbrk = _curbrk;\
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114 hdr.a_bss_addr = bss_start;\
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115 unexec_text_start = hdr.a_text_addr;}
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116
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117 #if 0 /* RMSmacs */
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118 /* Use the K&R version of the DEFUN macro. */
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119 #define USE_NONANSI_DEFUN
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120 #endif
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