Commit | Line | Data |
---|---|---|
1b94449f RS |
1 | /* MS-DOS specific Lisp utilities. Coded by Manabu Higashida, 1991. |
2 | Major changes May-July 1993 Morten Welinder (only 10% original code left) | |
3 | Copyright (C) 1991, 1993 Free Software Foundation, Inc. | |
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 | |
edfc0d45 | 9 | the Free Software Foundation; either version 2, or (at your option) |
1b94449f RS |
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 | |
3b7ad313 EN |
19 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
1b94449f RS |
21 | |
22 | ||
48984716 | 23 | #include <config.h> |
1b94449f RS |
24 | |
25 | #ifdef MSDOS | |
26 | /* The entire file is within this conditional */ | |
27 | ||
28 | #include <stdio.h> | |
29 | #include <dos.h> | |
30 | #include "lisp.h" | |
31 | #include "buffer.h" | |
32 | #include "termchar.h" | |
33 | #include "termhooks.h" | |
34 | #include "frame.h" | |
35 | #include "dosfns.h" | |
36 | #include "msdos.h" | |
5f08dc78 | 37 | #include <go32.h> |
1b94449f | 38 | |
1b94449f RS |
39 | DEFUN ("int86", Fint86, Sint86, 2, 2, 0, |
40 | "Call specific MSDOS interrupt number INTERRUPT with REGISTERS.\n\ | |
41 | Return the updated REGISTER vector.\n\ | |
42 | \n\ | |
43 | INTERRUPT should be an integer in the range 0 to 255.\n\ | |
44 | REGISTERS should be a vector produced by `make-register' and\n\ | |
45 | `set-register-value'.") | |
e20104ba EN |
46 | (interrupt, registers) |
47 | Lisp_Object interrupt, registers; | |
1b94449f RS |
48 | { |
49 | register int i; | |
50 | int no; | |
51 | union REGS inregs, outregs; | |
52 | Lisp_Object val; | |
53 | ||
e20104ba EN |
54 | CHECK_NUMBER (interrupt, 0); |
55 | no = (unsigned long) XINT (interrupt); | |
56 | CHECK_VECTOR (registers, 1); | |
57 | if (no < 0 || no > 0xff || XVECTOR (registers)-> size != 8) | |
1b94449f RS |
58 | return Qnil; |
59 | for (i = 0; i < 8; i++) | |
e20104ba | 60 | CHECK_NUMBER (XVECTOR (registers)->contents[i], 1); |
1b94449f | 61 | |
e20104ba EN |
62 | inregs.x.ax = (unsigned long) XFASTINT (XVECTOR (registers)->contents[0]); |
63 | inregs.x.bx = (unsigned long) XFASTINT (XVECTOR (registers)->contents[1]); | |
64 | inregs.x.cx = (unsigned long) XFASTINT (XVECTOR (registers)->contents[2]); | |
65 | inregs.x.dx = (unsigned long) XFASTINT (XVECTOR (registers)->contents[3]); | |
66 | inregs.x.si = (unsigned long) XFASTINT (XVECTOR (registers)->contents[4]); | |
67 | inregs.x.di = (unsigned long) XFASTINT (XVECTOR (registers)->contents[5]); | |
68 | inregs.x.cflag = (unsigned long) XFASTINT (XVECTOR (registers)->contents[6]); | |
69 | inregs.x.flags = (unsigned long) XFASTINT (XVECTOR (registers)->contents[7]); | |
1b94449f RS |
70 | |
71 | int86 (no, &inregs, &outregs); | |
72 | ||
e20104ba EN |
73 | XVECTOR (registers)->contents[0] = make_number (outregs.x.ax); |
74 | XVECTOR (registers)->contents[1] = make_number (outregs.x.bx); | |
75 | XVECTOR (registers)->contents[2] = make_number (outregs.x.cx); | |
76 | XVECTOR (registers)->contents[3] = make_number (outregs.x.dx); | |
77 | XVECTOR (registers)->contents[4] = make_number (outregs.x.si); | |
78 | XVECTOR (registers)->contents[5] = make_number (outregs.x.di); | |
79 | XVECTOR (registers)->contents[6] = make_number (outregs.x.cflag); | |
80 | XVECTOR (registers)->contents[7] = make_number (outregs.x.flags); | |
1b94449f | 81 | |
e20104ba | 82 | return registers; |
1b94449f RS |
83 | } |
84 | ||
5f08dc78 KS |
85 | DEFUN ("msdos-memget", Fdos_memget, Sdos_memget, 2, 2, 0, |
86 | "Read DOS memory at offset ADDRESS into VECTOR.\n\ | |
87 | Return the updated VECTOR.") | |
e20104ba EN |
88 | (address, vector) |
89 | Lisp_Object address, vector; | |
5f08dc78 KS |
90 | { |
91 | register int i; | |
92 | int offs, len; | |
93 | char *buf; | |
94 | Lisp_Object val; | |
95 | ||
e20104ba EN |
96 | CHECK_NUMBER (address, 0); |
97 | offs = (unsigned long) XINT (address); | |
98 | CHECK_VECTOR (vector, 1); | |
99 | len = XVECTOR (vector)-> size; | |
100 | if (len < 1 || len > 2048 || address < 0 || address > 0xfffff - len) | |
5f08dc78 KS |
101 | return Qnil; |
102 | buf = alloca (len); | |
103 | dosmemget (offs, len, buf); | |
104 | ||
105 | for (i = 0; i < len; i++) | |
e20104ba | 106 | XVECTOR (vector)->contents[i] = make_number (buf[i]); |
5f08dc78 | 107 | |
e20104ba | 108 | return vector; |
5f08dc78 KS |
109 | } |
110 | ||
111 | DEFUN ("msdos-memput", Fdos_memput, Sdos_memput, 2, 2, 0, | |
112 | "Write DOS memory at offset ADDRESS from VECTOR.") | |
e20104ba EN |
113 | (address, vector) |
114 | Lisp_Object address, vector; | |
5f08dc78 KS |
115 | { |
116 | register int i; | |
117 | int offs, len; | |
118 | char *buf; | |
119 | Lisp_Object val; | |
120 | ||
e20104ba EN |
121 | CHECK_NUMBER (address, 0); |
122 | offs = (unsigned long) XINT (address); | |
123 | CHECK_VECTOR (vector, 1); | |
124 | len = XVECTOR (vector)-> size; | |
125 | if (len < 1 || len > 2048 || address < 0 || address > 0xfffff - len) | |
5f08dc78 KS |
126 | return Qnil; |
127 | buf = alloca (len); | |
128 | ||
129 | for (i = 0; i < len; i++) | |
130 | { | |
e20104ba EN |
131 | CHECK_NUMBER (XVECTOR (vector)->contents[i], 1); |
132 | buf[i] = (unsigned char) XFASTINT (XVECTOR (vector)->contents[i]) & 0xFF; | |
5f08dc78 KS |
133 | } |
134 | ||
135 | dosmemput (buf, len, offs); | |
136 | return Qt; | |
137 | } | |
138 | ||
139 | DEFUN ("msdos-set-keyboard", Fmsdos_set_keyboard, Smsdos_set_keyboard, 1, 2, 0, | |
e20104ba | 140 | "Set keyboard layout according to COUNTRY-CODE.\n\ |
5f08dc78 KS |
141 | If the optional argument ALLKEYS is non-nil, the keyboard is mapped for\n\ |
142 | all keys; otherwise it is only used when the ALT key is pressed.\n\ | |
143 | The current keyboard layout is available in dos-keyboard-code.") | |
144 | (country_code, allkeys) | |
145 | Lisp_Object country_code; | |
146 | { | |
147 | CHECK_NUMBER (country_code, 0); | |
148 | if (!dos_set_keyboard (XINT (country_code), !NILP (allkeys))) | |
149 | return Qnil; | |
150 | return Qt; | |
151 | } | |
152 | ||
87485d6f MW |
153 | #ifndef HAVE_X_WINDOWS |
154 | /* Later we might want to control the mouse interface with this function, | |
155 | e.g., with respect to non-80 column screen modes. */ | |
156 | ||
157 | DEFUN ("msdos-mouse-p", Fmsdos_mouse_p, Smsdos_mouse_p, 0, 0, 0, "\ | |
158 | Report whether a mouse is present.") | |
159 | () | |
160 | { | |
161 | if (have_mouse) | |
162 | return Qt; | |
163 | else | |
164 | return Qnil; | |
165 | } | |
166 | ||
167 | DEFUN ("set-mouse-position", Fset_mouse_position, Sset_mouse_position, 3, 3, 0, | |
168 | "Move the mouse pointer to the center of character cell (X,Y) in FRAME.\n\ | |
169 | WARNING: If you use this under X windows,\n\ | |
170 | you should call `unfocus-frame' afterwards.") | |
171 | (frame, x, y) | |
172 | Lisp_Object frame, x, y; | |
173 | { | |
174 | mouse_moveto (XINT (x), XINT (y)); | |
ac3b0279 | 175 | return Qnil; |
87485d6f MW |
176 | } |
177 | ||
178 | /* Function to translate colour names to integers. See lisp/term/pc-win.el | |
179 | for its definition. */ | |
180 | ||
181 | Lisp_Object Qmsdos_color_translate; | |
182 | #endif | |
183 | ||
ac3b0279 RS |
184 | |
185 | DEFUN ("msdos-mouse-init", Fmsdos_mouse_init, Smsdos_mouse_init, 0, 0, "", | |
186 | "Initialize and enable mouse if available.") | |
187 | () | |
188 | { | |
5f08dc78 KS |
189 | if (have_mouse) |
190 | { | |
191 | have_mouse = 1; | |
192 | mouse_init (); | |
193 | return Qt; | |
194 | } | |
ac3b0279 RS |
195 | return Qnil; |
196 | } | |
197 | ||
198 | DEFUN ("msdos-mouse-enable", Fmsdos_mouse_enable, Smsdos_mouse_enable, 0, 0, "", | |
199 | "Enable mouse if available.") | |
200 | () | |
201 | { | |
202 | if (have_mouse) | |
203 | { | |
5f08dc78 KS |
204 | have_mouse = 1; |
205 | mouse_on (); | |
ac3b0279 RS |
206 | } |
207 | return have_mouse ? Qt : Qnil; | |
208 | } | |
209 | ||
210 | DEFUN ("msdos-mouse-disable", Fmsdos_mouse_disable, Smsdos_mouse_disable, 0, 0, "", | |
211 | "Disable mouse if available.") | |
212 | () | |
213 | { | |
214 | mouse_off (); | |
215 | if (have_mouse) have_mouse = -1; | |
216 | return Qnil; | |
217 | } | |
218 | ||
5f08dc78 KS |
219 | DEFUN ("insert-startup-screen", Finsert_startup_screen, Sinsert_startup_screen, 0, 0, "", "\ |
220 | Insert copy of screen contents prior to starting emacs.\n\ | |
221 | Return nil if startup screen is not available.") | |
222 | () | |
223 | { | |
224 | char *s; | |
225 | int rows, cols; | |
226 | int i, j; | |
227 | ||
228 | if (!dos_get_saved_screen (&s, &rows, &cols)) | |
229 | return Qnil; | |
230 | ||
231 | for (i = 0; i < rows; i++) | |
232 | { | |
233 | for (j = 0; j < cols; j++) | |
234 | { | |
235 | insert_char (*s, 1); | |
236 | s += 2; | |
237 | } | |
238 | insert_char ('\n', 1); | |
239 | } | |
240 | ||
241 | return Qt; | |
242 | } | |
ac3b0279 | 243 | |
fb859603 RS |
244 | DEFUN ("msdos-long-file-names", Fmsdos_long_file_names, Smsdos_long_file_names, |
245 | 0, 0, 0, | |
246 | "Return non-nil if long file names are supported. on MSDOS.") | |
247 | () | |
248 | { | |
249 | #if __DJGPP__ >= 2 | |
250 | return (! NILP (Fgetenv ("LFN")) ? Qt : Qnil); | |
251 | #else | |
252 | return Qnil; | |
253 | #endif | |
254 | } | |
255 | ||
87485d6f | 256 | \f |
5f08dc78 | 257 | /* country info */ |
1b94449f RS |
258 | int dos_country_code; |
259 | int dos_codepage; | |
5f08dc78 KS |
260 | int dos_timezone_offset; |
261 | int dos_decimal_point; | |
262 | int dos_keyboard_layout; | |
263 | unsigned char dos_country_info[DOS_COUNTRY_INFO]; | |
264 | ||
265 | int dos_hyper_key; | |
266 | int dos_super_key; | |
267 | int dos_keypad_mode; | |
1b94449f | 268 | |
5f08dc78 KS |
269 | Lisp_Object Vdos_version; |
270 | Lisp_Object Vdos_display_scancodes; | |
5f08dc78 | 271 | |
1b94449f RS |
272 | void |
273 | init_dosfns () | |
274 | { | |
275 | union REGS regs; | |
276 | _go32_dpmi_seginfo info; | |
277 | _go32_dpmi_registers dpmiregs; | |
278 | ||
87485d6f | 279 | #ifndef SYSTEM_MALLOC |
1b94449f | 280 | get_lim_data (); /* why the hell isn't this called elsewhere? */ |
87485d6f | 281 | #endif |
1b94449f RS |
282 | |
283 | regs.x.ax = 0x3000; | |
284 | intdos (®s, ®s); | |
285 | Vdos_version = Fcons (make_number (regs.h.al), make_number (regs.h.ah)); | |
286 | ||
287 | /* Obtain the country code by calling Dos via Dpmi. Don't rely on GO32. */ | |
5f08dc78 | 288 | info.size = (sizeof(dos_country_info) + 15) / 16; |
1b94449f RS |
289 | if (_go32_dpmi_allocate_dos_memory (&info)) |
290 | dos_country_code = 1; | |
291 | else | |
292 | { | |
293 | dpmiregs.x.ax = 0x3800; | |
294 | dpmiregs.x.ds = info.rm_segment; | |
295 | dpmiregs.x.dx = 0; | |
296 | dpmiregs.x.ss = dpmiregs.x.sp = 0; | |
297 | _go32_dpmi_simulate_int (0x21, &dpmiregs); | |
298 | dos_country_code = dpmiregs.x.bx; | |
5f08dc78 | 299 | dosmemget (info.rm_segment * 16, DOS_COUNTRY_INFO, dos_country_info); |
1b94449f RS |
300 | _go32_dpmi_free_dos_memory (&info); |
301 | } | |
5f08dc78 | 302 | dos_set_keyboard (dos_country_code, 0); |
1b94449f RS |
303 | |
304 | regs.x.ax = 0x6601; | |
305 | intdos (®s, ®s); | |
306 | if (regs.x.cflag) | |
307 | /* Estimate code page from country code */ | |
308 | switch (dos_country_code) | |
309 | { | |
310 | case 45: /* Denmark */ | |
311 | case 47: /* Norway */ | |
312 | dos_codepage = 865; | |
313 | break; | |
314 | default: | |
315 | /* US */ | |
316 | dos_codepage = 437; | |
317 | } | |
318 | else | |
319 | dos_codepage = regs.x.bx & 0xffff; | |
320 | } | |
321 | \f | |
322 | /* | |
323 | * Define everything | |
324 | */ | |
325 | syms_of_dosfns () | |
326 | { | |
1b94449f | 327 | defsubr (&Sint86); |
5f08dc78 KS |
328 | defsubr (&Sdos_memget); |
329 | defsubr (&Sdos_memput); | |
ac3b0279 RS |
330 | defsubr (&Smsdos_mouse_init); |
331 | defsubr (&Smsdos_mouse_enable); | |
5f08dc78 KS |
332 | defsubr (&Smsdos_set_keyboard); |
333 | defsubr (&Sinsert_startup_screen); | |
ac3b0279 | 334 | defsubr (&Smsdos_mouse_disable); |
fb859603 | 335 | defsubr (&Smsdos_long_file_names); |
87485d6f MW |
336 | #ifndef HAVE_X_WINDOWS |
337 | defsubr (&Smsdos_mouse_p); | |
338 | defsubr (&Sset_mouse_position); | |
339 | ||
340 | Qmsdos_color_translate = intern ("msdos-color-translate"); | |
341 | staticpro (&Qmsdos_color_translate); | |
342 | #endif | |
1b94449f RS |
343 | |
344 | DEFVAR_INT ("dos-country-code", &dos_country_code, | |
345 | "The country code returned by Dos when Emacs was started.\n\ | |
346 | Usually this is the international telephone prefix."); | |
347 | ||
348 | DEFVAR_INT ("dos-codepage", &dos_codepage, | |
5f08dc78 | 349 | "The codepage active when Emacs was started.\n\ |
24ba360b RS |
350 | The following are known:\n\ |
351 | 437 United States\n\ | |
352 | 850 Multilingual (Latin I)\n\ | |
353 | 852 Slavic (Latin II)\n\ | |
354 | 857 Turkish\n\ | |
355 | 860 Portugal\n\ | |
356 | 861 Iceland\n\ | |
357 | 863 Canada (French)\n\ | |
1b94449f RS |
358 | 865 Norway/Denmark"); |
359 | ||
5f08dc78 KS |
360 | DEFVAR_INT ("dos-timezone-offset", &dos_timezone_offset, |
361 | "The current timezone offset to UTC in minutes. | |
362 | Implicitly modified when the TZ variable is changed."); | |
363 | ||
1b94449f RS |
364 | DEFVAR_LISP ("dos-version", &Vdos_version, |
365 | "The (MAJOR . MINOR) Dos version (subject to modification with setver)."); | |
5f08dc78 KS |
366 | |
367 | DEFVAR_LISP ("dos-display-scancodes", &Vdos_display_scancodes, | |
368 | "*When non-nil, the keyboard scan-codes are displayed at the bottom right\n\ | |
369 | corner of the display (typically at the end of the mode line).\n\ | |
370 | The output format is: scan code:char code*modifiers."); | |
371 | Vdos_display_scancodes = Qnil; | |
372 | ||
5f08dc78 KS |
373 | DEFVAR_INT ("dos-hyper-key", &dos_hyper_key, |
374 | "*If set to 1, use right ALT key as hyper key.\n\ | |
375 | If set to 2, use right CTRL key as hyper key."); | |
376 | dos_hyper_key = 0; | |
377 | ||
378 | DEFVAR_INT ("dos-super-key", &dos_super_key, | |
379 | "*If set to 1, use right ALT key as super key.\n\ | |
380 | If set to 2, use right CTRL key as super key."); | |
381 | dos_super_key = 0; | |
382 | ||
383 | DEFVAR_INT ("dos-keypad-mode", &dos_keypad_mode, | |
384 | "*Controls what key code is returned by a key in the numeric keypad.\n\ | |
385 | The `numlock ON' action is only taken if no modifier keys are pressed.\n\ | |
386 | The value is an integer constructed by adding the following bits together:\n\ | |
387 | \n\ | |
388 | 0x00 Digit key returns digit (if numlock ON)\n\ | |
389 | 0x01 Digit key returns kp-digit (if numlock ON)\n\ | |
390 | 0x02 Digit key returns M-digit (if numlock ON)\n\ | |
391 | 0x03 Digit key returns edit key (if numlock ON)\n\ | |
392 | \n\ | |
393 | 0x00 Grey key returns char (if numlock ON)\n\ | |
394 | 0x04 Grey key returns kp-key (if numlock ON)\n\ | |
395 | \n\ | |
396 | 0x00 Digit key returns digit (if numlock OFF)\n\ | |
397 | 0x10 Digit key returns kp-digit (if numlock OFF)\n\ | |
398 | 0x20 Digit key returns M-digit (if numlock OFF)\n\ | |
399 | 0x30 Digit key returns edit key (if numlock OFF)\n\ | |
400 | \n\ | |
401 | 0x00 Grey key returns char (if numlock OFF)\n\ | |
402 | 0x40 Grey key returns kp-key (if numlock OFF)\n\ | |
403 | \n\ | |
404 | 0x200 ALT-0..ALT-9 in top-row produces shifted codes."); | |
b3d5621c | 405 | dos_keypad_mode = 0x75; |
5f08dc78 KS |
406 | |
407 | DEFVAR_INT ("dos-keyboard-layout", &dos_keyboard_layout, | |
408 | "Contains the country code for the current keyboard layout.\n\ | |
409 | Use msdos-set-keyboard to select another keyboard layout."); | |
410 | dos_keyboard_layout = 1; /* US */ | |
411 | ||
412 | DEFVAR_INT ("dos-decimal-point", &dos_decimal_point, | |
413 | "If non-zero, it contains the character to be returned when the\n\ | |
414 | decimal point key in the numeric keypad is pressed when Num Lock is on.\n\ | |
415 | If zero, the decimal point key returns the country code specific value."); | |
416 | dos_decimal_point = 0; | |
1b94449f RS |
417 | } |
418 | #endif /* MSDOS */ |