Commit | Line | Data |
---|---|---|
20c428fd JB |
1 | /* machine description file for SEQUENT BALANCE machines |
2 | Copyright (C) 1985, 1986 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU Emacs. | |
5 | ||
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 | |
17385adc | 8 | the Free Software Foundation; either version 2, or (at your option) |
20c428fd JB |
9 | any later version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
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 | |
3b7ad313 EN |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
20c428fd JB |
20 | |
21 | ||
22 | /* The following line tells the configuration script what sort of | |
23 | operating system this machine is likely to run. | |
24 | USUAL-OPSYS="note" | |
25 | ||
26 | NOTE-START | |
27 | Use -opsystem=bsd4-2, or -opsystem=bsd4-3 on newer systems. | |
28 | NOTE-END */ | |
29 | ||
30 | /* NOTE: this file works for DYNIX release 2.0 | |
31 | (not tested on 1.3) on NS32000's */ | |
32 | ||
74d3f806 KH |
33 | /* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word |
34 | is the most significant byte. */ | |
35 | ||
36 | #undef WORDS_BIG_ENDIAN | |
37 | ||
20c428fd JB |
38 | /* Define NO_ARG_ARRAY if you cannot take the address of the first of a |
39 | * group of arguments and treat it as an array of the arguments. */ | |
40 | ||
41 | /* #define NO_ARG_ARRAY */ | |
42 | ||
43 | /* Define WORD_MACHINE if addresses and such have | |
44 | * to be corrected before they can be used as byte counts. */ | |
45 | ||
46 | /* #define WORD_MACHINE */ | |
47 | ||
20c428fd JB |
48 | /* Now define a symbol for the cpu type, if your compiler |
49 | does not define it automatically: | |
50 | vax, m68000, ns16000, pyramid, orion, tahoe and APOLLO | |
51 | are the ones defined so far. */ | |
52 | ||
53 | /* BTW: DYNIX defines sequent, ns32000, and ns16000 (GENIX compatibility) */ | |
54 | #ifndef sequent /* pre DYNIX 2.1 releases */ | |
55 | # define sequent | |
56 | #endif | |
57 | ||
58 | /* Use type int rather than a union, to represent Lisp_Object */ | |
59 | /* This is desirable for most machines. */ | |
60 | ||
61 | #define NO_UNION_TYPE | |
62 | ||
63 | /* crt0.c should use the vax-bsd style of entry, with these dummy args. */ | |
64 | ||
65 | #define CRT0_DUMMIES bogus_fp, | |
66 | ||
67 | /* crt0.c should define a symbol `start' and do .globl with a dot. */ | |
68 | ||
69 | #define DOT_GLOBAL_START | |
70 | ||
71 | /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend | |
72 | the 24-bit bit field into an int. In other words, if bit fields | |
73 | are always unsigned. | |
74 | ||
75 | If you use NO_UNION_TYPE, this flag does not matter. */ | |
76 | ||
77 | #define EXPLICIT_SIGN_EXTEND | |
78 | ||
79 | /* Data type of load average, as read out of kmem. */ | |
80 | ||
81 | #define LOAD_AVE_TYPE unsigned long | |
82 | ||
83 | /* Convert that into an integer that is 100 for a load average of 1.0 */ | |
84 | ||
85 | #define FSCALE 1000.0 | |
86 | #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE) | |
87 | ||
88 | /* Define CANNOT_DUMP on machines where unexec does not work. | |
89 | Then the function dump-emacs will not be defined | |
90 | and temacs will do (load "loadup") automatically unless told otherwise. */ | |
91 | ||
92 | /* #define CANNOT_DUMP */ | |
93 | ||
94 | /* Define VIRT_ADDR_VARIES if the virtual addresses of | |
95 | pure and impure space as loaded can vary, and even their | |
96 | relative order cannot be relied on. | |
97 | ||
98 | Otherwise Emacs assumes that text space precedes data space, | |
99 | numerically. */ | |
100 | ||
101 | /* #define VIRT_ADDR_VARIES */ | |
102 | ||
103 | /* Define C_ALLOCA if this machine does not support a true alloca | |
104 | and the one written in C should be used instead. | |
105 | Define HAVE_ALLOCA to say that the system provides a properly | |
106 | working alloca function and it should be used. | |
107 | Define neither one if an assembler-language alloca | |
108 | in the file alloca.s should be used. */ | |
109 | ||
110 | /* #define C_ALLOCA */ | |
111 | #define HAVE_ALLOCA | |
112 | ||
113 | /* Name of file the to look in | |
114 | for the kernel symbol table (for load average) */ | |
115 | ||
116 | #undef KERNEL_FILE | |
117 | #define KERNEL_FILE "/dynix" | |
118 | ||
119 | /* Avoids a compiler bug */ | |
120 | ||
121 | #define TAHOE_REGISTER_BUG | |
122 | ||
123 | /* Say that the text segment of a.out includes the header; | |
124 | the header actually occupies the first few bytes of the text segment | |
125 | and is counted in hdr.a_text. Furthermore, the value written | |
126 | in the a_text in the file must have N_ADDRADJ added to it. */ | |
127 | ||
128 | #define A_TEXT_OFFSET(HDR) (sizeof (HDR) + N_ADDRADJ (HDR)) | |
129 | ||
130 | /* This is the offset of the executable's text, from the start of the file. */ | |
131 | ||
132 | #define A_TEXT_SEEK(HDR) (N_TXTOFF (hdr) + sizeof (hdr)) | |
133 | ||
134 | /* (short) negative-int doesn't sign-extend correctly */ | |
135 | #define SHORT_CAST_BUG | |
136 | ||
137 | /* Cause compilations to be done in parallel in ymakefile. */ | |
138 | #define MAKE_PARALLEL & | |
139 | ||
140 | /* Say that mailer interlocking uses flock. */ | |
141 | #define MAIL_USE_FLOCK | |
142 | ||
143 | /* On many 4.2-based systems, there's a rather tricky bug | |
144 | * with the interpretation of the pid/pgrp value given to | |
145 | * the F_SETOWN fcntl() call. It works as documented EXCEPT | |
146 | * when applied to filedescriptors for sockets, in which case | |
147 | * the sign must be reversed. If your emacs subprocesses get | |
148 | * SIGIO's when they shouldn't, while running on a socket | |
149 | * (e.g. under X windows), you should probably define this. | |
150 | */ | |
151 | ||
152 | #define F_SETOWN_SOCK_NEG | |
153 | ||
154 | /* Some really obscure 4.2-based systems (like Sequent DYNIX) | |
155 | * do not support asynchronous I/O (using SIGIO) on sockets, | |
156 | * even though it works fine on tty's. If you have one of | |
157 | * these systems, define the following, and then use it in | |
158 | * config.h (or elsewhere) to decide when (not) to use SIGIO. | |
159 | */ | |
160 | ||
161 | #define NO_SOCK_SIGIO | |
162 | ||
163 | /* Define how to search all pty names. | |
164 | This is for Dynix 3.0; delete next 5 definitions for older systems. */ | |
165 | ||
166 | #define PTY_MAJOR "pqrstuvwPQRSTUVW" | |
167 | #define PTY_MINOR "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
168 | #define PTY_ITERATION \ | |
169 | register int ma, mi; \ | |
170 | for (ma = 0; ma < sizeof(PTY_MAJOR) - 1; ma++) \ | |
171 | for (mi = 0; mi < sizeof(PTY_MINOR) - 1; mi++) | |
172 | #define PTY_NAME_SPRINTF \ | |
173 | sprintf (ptyname, "/dev/pty%c%c", PTY_MAJOR[ma], PTY_MINOR[mi]); | |
174 | #define PTY_TTY_NAME_SPRINTF \ | |
175 | sprintf (ptyname, "/dev/tty%c%c", PTY_MAJOR[ma], PTY_MINOR[mi]); |