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30fe07a6 | 1 | /* Machine-dependent configuration for GNU Emacs for AT&T 3b machines. |
d8f6d720 | 2 | Copyright (C) 1986, 2002 Free Software Foundation, Inc. |
30fe07a6 JB |
3 | |
4 | Modified by David Robinson (daver@csvax.caltech.edu) 6/6/86 | |
5 | ||
6 | This file is part of GNU Emacs. | |
7 | ||
8 | GNU Emacs is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
17385adc | 10 | the Free Software Foundation; either version 2, or (at your option) |
30fe07a6 JB |
11 | any later version. |
12 | ||
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GNU Emacs; see the file COPYING. If not, write to | |
3b7ad313 EN |
20 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
21 | Boston, MA 02111-1307, USA. */ | |
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22 | |
23 | ||
177c0ea7 | 24 | /* The following line tells the configuration script what sort of |
30fe07a6 JB |
25 | operating system this machine is likely to run. |
26 | USUAL-OPSYS="usg5-2-2" */ | |
27 | ||
74d3f806 KH |
28 | /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word |
29 | is the most significant byte. */ | |
30 | ||
31 | #define WORDS_BIG_ENDIAN | |
32 | ||
30fe07a6 JB |
33 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a |
34 | * group of arguments and treat it as an array of the arguments. */ | |
35 | ||
36 | /* #define NO_ARG_ARRAY */ | |
37 | ||
38 | /* Define WORD_MACHINE if addresses and such have | |
39 | * to be corrected before they can be used as byte counts. */ | |
40 | ||
41 | /* #define WORD_MACHINE */ | |
42 | ||
30fe07a6 JB |
43 | /* Now define a symbol for the cpu type, if your compiler |
44 | does not define it automatically */ | |
45 | #define ATT3B | |
46 | ||
47 | /* Use type int rather than a union, to represent Lisp_Object */ | |
48 | /* This is desirable for most machines. */ | |
49 | ||
50 | #define NO_UNION_TYPE | |
51 | ||
52 | /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend | |
9b8e8201 | 53 | the bit field into an int. In other words, if bit fields |
30fe07a6 JB |
54 | are always unsigned. |
55 | ||
56 | If you use NO_UNION_TYPE, this flag does not matter. */ | |
57 | ||
58 | #define EXPLICIT_SIGN_EXTEND | |
59 | ||
60 | /* Data type of load average, as read out of kmem. */ | |
61 | /* #define LOAD_AVE_TYPE long */ | |
62 | ||
63 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
64 | ||
65 | /* #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) */ | |
66 | ||
67 | /* Define CANNOT_DUMP on machines where unexec does not work. | |
68 | Then the function dump-emacs will not be defined | |
69 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
70 | /* #define CANNOT_DUMP */ | |
71 | ||
72 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
73 | pure and impure space as loaded can vary, and even their | |
74 | relative order cannot be relied on. | |
75 | ||
76 | Otherwise Emacs assumes that text space precedes data space, | |
77 | numerically. */ | |
78 | ||
79 | /* #define VIRT_ADDR_VARIES */ /* Karl Kleinpaste says this isn't needed. */ | |
80 | ||
30fe07a6 JB |
81 | /* SysV has alloca in the PW library */ |
82 | ||
83 | #define LIB_STANDARD -lPW -lc | |
30fe07a6 JB |
84 | |
85 | /* Define NO_REMAP if memory segmentation makes it not work well | |
86 | to change the boundary between the text section and data section | |
87 | when Emacs is dumped. If you define this, the preloaded Lisp | |
88 | code will not be sharable; but that's better than failing completely. */ | |
89 | ||
90 | #define NO_REMAP | |
91 | ||
92 | /* #define LD_SWITCH_MACHINE -N */ | |
93 | ||
94 | /* Use Terminfo, not Termcap. */ | |
95 | ||
96 | #define TERMINFO | |
97 | ||
98 | /* -O has been observed to make correct C code in Emacs not work. | |
99 | So don't try to use it. */ | |
100 | ||
101 | #if u3b2 || u3b5 || u3b15 | |
102 | #define C_OPTIMIZE_SWITCH | |
103 | #endif | |
104 | ||
105 | /* Define our page size. */ | |
106 | ||
107 | #define NBPC 2048 | |
108 | ||
d9c5f5ed KR |
109 | #if 0 /* If this is still needed, don't hard-code assumptions about |
110 | the number of VALBITS, or other assumptions about the | |
111 | Lisp_Object representation. Try to extend lisp.h instead, if | |
112 | necessary. */ | |
30fe07a6 JB |
113 | /* The usual definition of XINT, which involves shifting, does not |
114 | sign-extend properly on this machine. */ | |
115 | ||
116 | #define XINT(i) (((sign_extend_temp=(i)) & 0x00800000) \ | |
117 | ? (sign_extend_temp | 0xFF000000) \ | |
118 | : (sign_extend_temp & 0x00FFFFFF)) | |
d9c5f5ed | 119 | #endif |
30fe07a6 | 120 | |
eb8c3be9 | 121 | #ifdef emacs /* Don't do this when making xmakefile! */ |
30fe07a6 JB |
122 | extern int sign_extend_temp; |
123 | #endif | |
124 | ||
125 | #if u3b2 || u3b5 || u3b15 | |
30fe07a6 | 126 | /* On 3b2/5/15, data space has high order bit on. */ |
d9c5f5ed | 127 | #define DATA_SEG_BITS 0x80000000 |
30fe07a6 JB |
128 | #endif /* 3b2, 3b5 or 3b15 */ |
129 | ||
130 | #define TEXT_START 0 | |
131 | ||
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132 | /* (short) negative-int doesn't sign-extend correctly */ |
133 | #define SHORT_CAST_BUG | |
134 | ||
135 | /* 3B2s with WIN/3B have winsize defined in ptem.h */ | |
136 | #if u3b2 | |
137 | #define NEED_PTEM_H | |
138 | #endif /* u3b2 */ | |
b6e1c607 RS |
139 | |
140 | /* 3b2 does not have memmove, I'm told. */ | |
141 | /* It is safe to have no parens around the args in the safe_bcopy call, | |
142 | and parens would screw up the prototype decl for memmove. */ | |
143 | #define memmove(d, s, n) safe_bcopy (s, d, n) | |
c901003d RS |
144 | |
145 | /* This affects filemode.c. */ | |
146 | #define NO_MODE_T | |
6b61353c KH |
147 | |
148 | /* arch-tag: 07441a37-d630-447f-94fa-7da19645c97a | |
149 | (do not change this comment) */ |