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20c428fd | 1 | /* machine description file for SEQUENT BALANCE machines |
b908093d | 2 | Copyright (C) 1985, 1986, 2002, 2003, 2004, |
aaef169d | 3 | 2005, 2006 Free Software Foundation, Inc. |
20c428fd JB |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
7 | GNU Emacs is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
17385adc | 9 | the Free Software Foundation; either version 2, or (at your option) |
20c428fd JB |
10 | any later version. |
11 | ||
12 | GNU Emacs is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU Emacs; see the file COPYING. If not, write to | |
364c38d3 LK |
19 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
20c428fd JB |
21 | |
22 | ||
177c0ea7 | 23 | /* The following line tells the configuration script what sort of |
20c428fd | 24 | operating system this machine is likely to run. |
177c0ea7 | 25 | USUAL-OPSYS="note" |
20c428fd JB |
26 | |
27 | NOTE-START | |
28 | Use -opsystem=bsd4-2, or -opsystem=bsd4-3 on newer systems. | |
29 | NOTE-END */ | |
30 | ||
177c0ea7 | 31 | /* NOTE: this file works for DYNIX release 2.0 |
20c428fd JB |
32 | (not tested on 1.3) on NS32000's */ |
33 | ||
74d3f806 KH |
34 | /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word |
35 | is the most significant byte. */ | |
36 | ||
37 | #undef WORDS_BIG_ENDIAN | |
38 | ||
20c428fd JB |
39 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a |
40 | * group of arguments and treat it as an array of the arguments. */ | |
41 | ||
42 | /* #define NO_ARG_ARRAY */ | |
43 | ||
44 | /* Define WORD_MACHINE if addresses and such have | |
45 | * to be corrected before they can be used as byte counts. */ | |
46 | ||
47 | /* #define WORD_MACHINE */ | |
48 | ||
20c428fd JB |
49 | /* Now define a symbol for the cpu type, if your compiler |
50 | does not define it automatically: | |
51 | vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO | |
52 | are the ones defined so far. */ | |
53 | ||
54 | /* BTW: DYNIX defines sequent, ns32000, and ns16000 (GENIX compatibility) */ | |
55 | #ifndef sequent /* pre DYNIX 2.1 releases */ | |
56 | # define sequent | |
57 | #endif | |
58 | ||
59 | /* Use type int rather than a union, to represent Lisp_Object */ | |
60 | /* This is desirable for most machines. */ | |
61 | ||
62 | #define NO_UNION_TYPE | |
63 | ||
64 | /* crt0.c should use the vax-bsd style of entry, with these dummy args. */ | |
65 | ||
66 | #define CRT0_DUMMIES bogus_fp, | |
67 | ||
68 | /* crt0.c should define a symbol `start' and do .globl with a dot. */ | |
69 | ||
70 | #define DOT_GLOBAL_START | |
71 | ||
72 | /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend | |
73 | the 24-bit bit field into an int. In other words, if bit fields | |
74 | are always unsigned. | |
75 | ||
76 | If you use NO_UNION_TYPE, this flag does not matter. */ | |
77 | ||
78 | #define EXPLICIT_SIGN_EXTEND | |
79 | ||
80 | /* Data type of load average, as read out of kmem. */ | |
81 | ||
82 | #define LOAD_AVE_TYPE unsigned long | |
83 | ||
84 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
85 | ||
86 | #define FSCALE 1000.0 | |
87 | #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) | |
88 | ||
89 | /* Define CANNOT_DUMP on machines where unexec does not work. | |
90 | Then the function dump-emacs will not be defined | |
91 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
92 | ||
93 | /* #define CANNOT_DUMP */ | |
94 | ||
95 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
96 | pure and impure space as loaded can vary, and even their | |
97 | relative order cannot be relied on. | |
98 | ||
99 | Otherwise Emacs assumes that text space precedes data space, | |
100 | numerically. */ | |
101 | ||
102 | /* #define VIRT_ADDR_VARIES */ | |
103 | ||
20c428fd JB |
104 | /* Name of file the to look in |
105 | for the kernel symbol table (for load average) */ | |
106 | ||
107 | #undef KERNEL_FILE | |
108 | #define KERNEL_FILE "/dynix" | |
109 | ||
110 | /* Avoids a compiler bug */ | |
111 | ||
112 | #define TAHOE_REGISTER_BUG | |
113 | ||
114 | /* Say that the text segment of a.out includes the header; | |
115 | the header actually occupies the first few bytes of the text segment | |
116 | and is counted in hdr.a_text. Furthermore, the value written | |
117 | in the a_text in the file must have N_ADDRADJ added to it. */ | |
118 | ||
119 | #define A_TEXT_OFFSET(HDR) (sizeof (HDR) + N_ADDRADJ (HDR)) | |
120 | ||
121 | /* This is the offset of the executable's text, from the start of the file. */ | |
122 | ||
123 | #define A_TEXT_SEEK(HDR) (N_TXTOFF (hdr) + sizeof (hdr)) | |
124 | ||
125 | /* (short) negative-int doesn't sign-extend correctly */ | |
126 | #define SHORT_CAST_BUG | |
127 | ||
128 | /* Cause compilations to be done in parallel in ymakefile. */ | |
129 | #define MAKE_PARALLEL & | |
130 | ||
131 | /* Say that mailer interlocking uses flock. */ | |
132 | #define MAIL_USE_FLOCK | |
133 | ||
134 | /* On many 4.2-based systems, there's a rather tricky bug | |
135 | * with the interpretation of the pid/pgrp value given to | |
136 | * the F_SETOWN fcntl() call. It works as documented EXCEPT | |
137 | * when applied to filedescriptors for sockets, in which case | |
138 | * the sign must be reversed. If your emacs subprocesses get | |
139 | * SIGIO's when they shouldn't, while running on a socket | |
140 | * (e.g. under X windows), you should probably define this. | |
141 | */ | |
142 | ||
143 | #define F_SETOWN_SOCK_NEG | |
144 | ||
145 | /* Some really obscure 4.2-based systems (like Sequent DYNIX) | |
146 | * do not support asynchronous I/O (using SIGIO) on sockets, | |
147 | * even though it works fine on tty's. If you have one of | |
148 | * these systems, define the following, and then use it in | |
149 | * config.h (or elsewhere) to decide when (not) to use SIGIO. | |
150 | */ | |
151 | ||
152 | #define NO_SOCK_SIGIO | |
153 | ||
154 | /* Define how to search all pty names. | |
155 | This is for Dynix 3.0; delete next 5 definitions for older systems. */ | |
156 | ||
157 | #define PTY_MAJOR "pqrstuvwPQRSTUVW" | |
158 | #define PTY_MINOR "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
159 | #define PTY_ITERATION \ | |
160 | register int ma, mi; \ | |
161 | for (ma = 0; ma < sizeof(PTY_MAJOR) - 1; ma++) \ | |
162 | for (mi = 0; mi < sizeof(PTY_MINOR) - 1; mi++) | |
163 | #define PTY_NAME_SPRINTF \ | |
164 | sprintf (ptyname, "/dev/pty%c%c", PTY_MAJOR[ma], PTY_MINOR[mi]); | |
165 | #define PTY_TTY_NAME_SPRINTF \ | |
166 | sprintf (ptyname, "/dev/tty%c%c", PTY_MAJOR[ma], PTY_MINOR[mi]); | |
ab5796a9 MB |
167 | |
168 | /* arch-tag: 81caea48-aa64-4021-9544-e969dea71ee8 | |
169 | (do not change this comment) */ |