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comparison src/m/template.h @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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1 /* machine description file template.
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
8 the Free Software Foundation; either version 2, or (at your option)
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 XEmacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
20
21 /* Synched up with: FSF 19.31. */
22
23 /* The following line tells the configuration script what sort of
24 operating system this machine is likely to run.
25 USUAL-OPSYS="<name of system .h file here, without the .h>" */
26
27 /* Define WORD_MACHINE if addresses and such have
28 * to be corrected before they can be used as byte counts. */
29
30 #define WORD_MACHINE
31
32 /* Now define a symbol for the cpu type, if your compiler
33 does not define it automatically:
34 Ones defined so far include vax, m68000, ns16000, pyramid,
35 orion, tahoe, APOLLO and many others */
36
37 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
38 the bit field into an int. In other words, if bit fields
39 are always unsigned.
40
41 If you use NO_UNION_TYPE, this flag does not matter. */
42
43 #define EXPLICIT_SIGN_EXTEND
44
45 /* Data type of load average, as read out of kmem. */
46
47 #define LOAD_AVE_TYPE long
48
49 /* Convert that into an integer that is 100 for a load average of 1.0 */
50
51 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
52
53 /* Define CANNOT_DUMP on machines where unexec does not work.
54 Then the function dump-emacs will not be defined
55 and temacs will do (load "loadup") automatically unless told otherwise. */
56
57 #define CANNOT_DUMP
58
59 /* Define VIRT_ADDR_VARIES if the virtual addresses of
60 pure and impure space as loaded can vary, and even their
61 relative order cannot be relied on.
62
63 Otherwise Emacs assumes that text space precedes data space,
64 numerically. */
65
66 #define VIRT_ADDR_VARIES
67
68 /* Define C_ALLOCA if this machine does not support a true alloca
69 and the one written in C should be used instead.
70 Define HAVE_ALLOCA to say that the system provides a properly
71 working alloca function and it should be used.
72 Define neither one if an assembler-language alloca
73 in the file alloca.s should be used. */
74
75 #define C_ALLOCA
76 #define HAVE_ALLOCA
77
78 /* Define NO_REMAP if memory segmentation makes it not work well
79 to change the boundary between the text section and data section
80 when Emacs is dumped. If you define this, the preloaded Lisp
81 code will not be sharable; but that's better than failing completely. */
82
83 #define NO_REMAP
84
85 /* Some really obscure 4.2-based systems (like Sequent DYNIX)
86 * do not support asynchronous I/O (using SIGIO) on sockets,
87 * even though it works fine on tty's. If you have one of
88 * these systems, define the following, and then use it in
89 * config.h (or elsewhere) to decide when (not) to use SIGIO.
90 *
91 * You'd think this would go in an operating-system description file,
92 * but since it only occurs on some, but not all, BSD systems, the
93 * reasonable place to select for it is in the machine description
94 * file.
95 */
96
97 #define NO_SOCK_SIGIO
98
99
100 /* After adding support for a new system, modify the large case
101 statement in the `configure' script to recognize reasonable
102 configuration names, and add a description of the system to
103 `etc/MACHINES'.
104
105 If you've just fixed a problem in an existing configuration file,
106 you should also check `etc/MACHINES' to make sure its descriptions
107 of known problems in that configuration should be updated. */