1/* machine description file for SEQUENT BALANCE machines
2   Copyright (C) 1985, 1986, 2001, 2002, 2003, 2004,
3                 2005, 2006, 2007  Free Software Foundation, Inc.
4
5This file is part of GNU Emacs.
6
7GNU Emacs is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2, or (at your option)
10any later version.
11
12GNU Emacs is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GNU Emacs; see the file COPYING.  If not, write to
19the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20Boston, MA 02110-1301, USA.  */
21
22
23/* The following line tells the configuration script what sort of
24   operating system this machine is likely to run.
25   USUAL-OPSYS="note"
26
27NOTE-START
28Use -opsystem=bsd4-2, or -opsystem=bsd4-3 on newer systems.
29NOTE-END */
30
31/* NOTE: this file works for DYNIX release 2.0
32	  (not tested on 1.3) on NS32000's */
33
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
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
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
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]);
167
168/* arch-tag: 81caea48-aa64-4021-9544-e969dea71ee8
169   (do not change this comment) */
170