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9ae5ee04 | 1 | /* alliant-2800.h - Alliant FX/2800 machine running Concentrix 2800. |
d8f6d720 | 2 | Copyright (C) 1990, 2002 Free Software Foundation, Inc. |
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3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
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6 | GNU Emacs is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
9ae5ee04 | 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 |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
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18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
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20 | |
21 | ||
177c0ea7 | 22 | /* The following line tells the configuration script what sort of |
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23 | operating system this machine is likely to run. |
24 | USUAL-OPSYS="bsd4-3" */ | |
25 | ||
74d3f806 KH |
26 | /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word |
27 | is the most significant byte. */ | |
28 | ||
29 | #undef WORDS_BIG_ENDIAN | |
30 | ||
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31 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a |
32 | * group of arguments and treat it as an array of the arguments. */ | |
33 | ||
34 | #define NO_ARG_ARRAY | |
35 | ||
36 | /* Define WORD_MACHINE if addresses and such have | |
37 | * to be corrected before they can be used as byte counts. */ | |
38 | ||
39 | #undef WORD_MACHINE | |
40 | ||
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41 | /* Now define a symbol for the cpu type, if your compiler |
42 | does not define it automatically: | |
43 | vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO | |
44 | are the ones defined so far. */ | |
45 | ||
46 | #define ALLIANT | |
47 | #define ALLIANT_2800 | |
48 | #define sun /* Use X support for Sun keyboard stuff. */ | |
49 | #define C_OPTIMIZE_SWITCH -Og /* No concurrent code allowed here. */ | |
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50 | |
51 | /* Use type int rather than a union, to represent Lisp_Object */ | |
52 | /* This is desirable for most machines. */ | |
53 | ||
54 | #define NO_UNION_TYPE | |
55 | ||
56 | /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend | |
09b3d662 | 57 | the bit field into an int. In other words, if bit fields |
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58 | are always unsigned. |
59 | ||
60 | If you use NO_UNION_TYPE, this flag does not matter. */ | |
61 | /* On Alliants, bitfields are unsigned. */ | |
62 | ||
63 | #define EXPLICIT_SIGN_EXTEND | |
64 | ||
65 | /* Concentrix uses a different kernel symbol for load average. */ | |
66 | ||
67 | #undef LDAV_SYMBOL /* Undo definition in s-bsd4-2.h */ | |
68 | #define LDAV_SYMBOL "_Loadavg" | |
69 | ||
70 | /* Data type of load average, as read out of kmem. */ | |
71 | ||
72 | #define LOAD_AVE_TYPE long | |
73 | ||
74 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
75 | ||
76 | #define LOAD_AVE_CVT(x) (x * 100 / LOADAVG_SCALE) | |
77 | ||
78 | /* include <sys/param.h> for the definition of LOADAVG_SCALE, and also | |
79 | LOADAVG_SIZE, the number of items in the Loadavg array. */ | |
80 | ||
81 | /* Define CANNOT_DUMP on machines where unexec does not work. | |
82 | Then the function dump-emacs will not be defined | |
83 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
84 | ||
85 | /* #define CANNOT_DUMP */ | |
86 | #define UNEXEC unexfx2800.o | |
87 | #define LIBS_MACHINE -lalliant | |
88 | ||
89 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
90 | pure and impure space as loaded can vary, and even their | |
91 | relative order cannot be relied on. | |
92 | ||
93 | Otherwise Emacs assumes that text space precedes data space, | |
94 | numerically. */ | |
95 | ||
96 | #undef VIRT_ADDR_VARIES | |
97 | ||
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98 | /* Define NO_REMAP if memory segmentation makes it not work well |
99 | to change the boundary between the text section and data section | |
100 | when Emacs is dumped. If you define this, the preloaded Lisp | |
101 | code will not be sharable; but that's better than failing completely. */ | |
102 | /* Actually, Alliant CONCENTRIX does paging "right": | |
103 | data pages are copy-on-write, which means that the pure data areas | |
104 | are shared automatically and remapping is not necessary. */ | |
105 | ||
106 | #define NO_REMAP | |
107 | ||
108 | /* Alliant needs special crt0.o because system version is not reentrant */ | |
109 | ||
110 | #define START_FILES crt0.o | |
111 | ||
112 | /* Alliant dependent code for dumping executing image. | |
113 | See crt0.c code for alliant. */ | |
114 | ||
115 | #define ADJUST_EXEC_HEADER {\ | |
116 | extern int _curbrk, _setbrk;\ | |
117 | _setbrk = _curbrk;\ | |
118 | hdr.a_bss_addr = bss_start;\ | |
119 | unexec_text_start = hdr.a_text_addr;} | |
120 | ||
121 | /* POSIX Compatibility */ | |
122 | /* Use System V.4 style getdents/readdir <dirent.h> for 2.2 and up. */ | |
123 | #define SYSV_SYSTEM_DIR | |
1e2d9c6d RS |
124 | |
125 | /* Use the K&R version of the DEFUN macro. */ | |
126 | #define USE_NONANSI_DEFUN |