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1b94449f RS |
1 | /* System description file for MS-DOS |
2 | ||
97efb629 GM |
3 | Copyright (C) 1993, 1996, 1997, 2001, 2002, 2003, 2004, 2005, 2006, |
4 | 2007, 2008, 2009, 2010 Free Software Foundation, Inc. | |
1b94449f RS |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
4b158629 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
1b94449f | 9 | it under the terms of the GNU General Public License as published by |
4b158629 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
1b94449f RS |
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 | |
4b158629 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
1b94449f RS |
20 | |
21 | /* Note: lots of stuff here was taken from s-msdos.h in demacs. */ | |
22 | ||
23 | ||
e05aebe9 GM |
24 | /* Define symbols to identify the version of Unix this is. |
25 | Define all the symbols that apply correctly. */ | |
1b94449f RS |
26 | #ifndef MSDOS |
27 | #define MSDOS | |
28 | #endif | |
fcc182b3 | 29 | |
920b97ab | 30 | #ifndef __DJGPP__ |
920b97ab KS |
31 | You lose; /* Emacs for DOS must be compiled with DJGPP */ |
32 | #endif | |
33 | ||
fcc182b3 | 34 | #define DOS_NT /* MSDOS or WINDOWSNT */ |
6df54671 | 35 | #undef BSD_SYSTEM |
1b94449f RS |
36 | |
37 | /* SYSTEM_TYPE should indicate the kind of system you are using. | |
e05aebe9 | 38 | It sets the Lisp variable system-type. */ |
1b94449f RS |
39 | #define SYSTEM_TYPE "ms-dos" |
40 | ||
76e5a001 | 41 | #define SYMS_SYSTEM syms_of_dosfns();syms_of_msdos();syms_of_win16select() |
1b94449f | 42 | |
1b94449f RS |
43 | #define SYSV_SYSTEM_DIR |
44 | ||
17b9d003 RS |
45 | /* Define this is the compiler understands `volatile'. */ |
46 | #define HAVE_VOLATILE | |
47 | ||
48 | ||
e05aebe9 GM |
49 | /* subprocesses should be defined if you want to have code for |
50 | asynchronous subprocesses (as used in M-x compile and M-x shell). | |
77ccee09 | 51 | This is the only system that needs this. */ |
1b94449f RS |
52 | #undef subprocesses |
53 | ||
54 | /* If your system uses COFF (Common Object File Format) then define the | |
e05aebe9 | 55 | preprocessor symbol "COFF". */ |
1b94449f RS |
56 | #define COFF |
57 | ||
e05aebe9 GM |
58 | /* Here, on a separate page, add any special hacks needed to make |
59 | Emacs work on this system. For example, you might define certain | |
60 | system call names that don't exist on your system, or that do | |
61 | different things on your system and must be used only through an | |
62 | encapsulation (which you should place, by convention, in sysdep.c). */ | |
1b94449f | 63 | \f |
7630a042 RS |
64 | /* Avoid incompatibilities between gmalloc.c and system header files |
65 | in how to declare valloc. */ | |
66 | #define GMALLOC_INHIBIT_VALLOC | |
67 | ||
7b4ded6d EZ |
68 | /* This overrides the default value on editfns.c, since DJGPP |
69 | does not have pw->pw_gecos. */ | |
70 | #define USER_FULL_NAME (getenv ("NAME")) | |
71 | ||
1b94449f RS |
72 | /* setjmp and longjmp can safely replace _setjmp and _longjmp, |
73 | but they will run slower. */ | |
1b94449f RS |
74 | #define _setjmp setjmp |
75 | #define _longjmp longjmp | |
76 | ||
7a05f3c7 RS |
77 | #define DATA_START (&etext + 1) |
78 | #define TEXT_START &start | |
7a05f3c7 RS |
79 | |
80 | #define _NAIVE_DOS_REGS | |
81 | ||
87485d6f | 82 | /* command.com does not understand `...` so we define this. */ |
1b94449f RS |
83 | #define SEPCHAR ';' |
84 | ||
85 | #define NULL_DEVICE "nul" | |
1b94449f | 86 | |
1b94449f RS |
87 | #define HAVE_INVERSE_HYPERBOLIC |
88 | #define FLOAT_CHECK_DOMAIN | |
89 | ||
90 | /* When $TERM is "internal" then this is substituted: */ | |
6772c8e1 | 91 | #define INTERNAL_TERMINAL "pc|bios|IBM PC with color display:\ |
89774ec3 | 92 | :co#80:li#25:Co#16:pa#256:km:ms:cm=<CM>:cl=<CL>:ce=<CE>:\ |
38fd211b | 93 | :se=</SO>:so=<SO>:us=<UL>:ue=</UL>:md=<BD>:mh=<DIM>:mb=<BL>:mr=<RV>:me=<NV>:\ |
89774ec3 | 94 | :AB=<BG %d>:AF=<FG %d>:op=<DefC>:" |
1b94449f RS |
95 | |
96 | /* Define this to a function (Fdowncase, Fupcase) if your file system | |
e05aebe9 | 97 | likes that. */ |
2f019854 | 98 | #define FILE_SYSTEM_CASE Fmsdos_downcase_filename |
1b94449f | 99 | |
e05aebe9 | 100 | /* Define this to be the separator between devices and paths. */ |
29675256 RS |
101 | #define DEVICE_SEP ':' |
102 | ||
103 | /* We'll support either convention on MSDOG. */ | |
104 | #define IS_DIRECTORY_SEP(_c_) ((_c_) == '/' || (_c_) == '\\') | |
105 | #define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP (_c_)) | |
106 | ||
eb246adb | 107 | |
b77c5660 KH |
108 | /* Mode line description of a buffer's type. */ |
109 | #define MODE_LINE_BINARY_TEXT(buf) (NILP(buf->buffer_file_type) ? "T" : "B") | |
110 | ||
eb246adb RS |
111 | /* We have (the code to control) a mouse. */ |
112 | #define HAVE_MOUSE | |
87485d6f | 113 | |
9fdec8bc | 114 | /* We can use mouse menus. */ |
61c88d95 RS |
115 | #define HAVE_MENUS |
116 | ||
87485d6f MW |
117 | /* Define one of these for easier conditionals. */ |
118 | #ifdef HAVE_X_WINDOWS | |
0405f8d9 EZ |
119 | /* We need a little extra space, see ../../lisp/loadup.el and the |
120 | commentary below, in the non-X branch. The 140KB number was | |
121 | measured on GNU/Linux and on MS-WIndows. */ | |
241c4680 | 122 | #define SYSTEM_PURESIZE_EXTRA (-170000+140000) |
87485d6f | 123 | #else |
0405f8d9 EZ |
124 | /* We need a little extra space, see ../../lisp/loadup.el. |
125 | As of 20091024, DOS-specific files use up 62KB of pure space. But | |
126 | overall, we end up wasting 130KB of pure space, because | |
127 | BASE_PURESIZE starts at 1.47MB, while we need only 1.3MB (including | |
128 | non-DOS specific files and load history; the latter is about 55K, | |
129 | but depends on the depth of the top-level Emacs directory in the | |
130 | directory tree). Given the unknown policy of different DPMI | |
131 | hosts regarding loading of untouched pages, I'm not going to risk | |
132 | enlarging Emacs footprint by another 100+ KBytes. */ | |
241c4680 | 133 | #define SYSTEM_PURESIZE_EXTRA (-170000+65000) |
87485d6f | 134 | #endif |
4b3fd719 | 135 | |
c3d0ee51 | 136 | /* Tell the garbage collector that setjmp is known to save all |
e05aebe9 | 137 | registers relevant for conservative garbage collection in the jmp_buf. */ |
4b3fd719 | 138 | #define GC_SETJMP_WORKS 1 |
2f169c38 | 139 | #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS |
ab5796a9 | 140 | |
a568f507 DN |
141 | #define NO_REMAP |
142 | ||
ab5796a9 MB |
143 | /* arch-tag: d184f860-815d-4ff4-8187-d05c0f3c37d0 |
144 | (do not change this comment) */ |