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ef79bbde P |
1 | /*************************************************************************** |
2 | * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team * | |
3 | * * | |
4 | * This program is free software; you can redistribute it and/or modify * | |
5 | * it under the terms of the GNU General Public License as published by * | |
6 | * the Free Software Foundation; either version 2 of the License, or * | |
7 | * (at your option) any later version. * | |
8 | * * | |
9 | * This program is distributed in the hope that it will be useful, * | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * | |
12 | * GNU General Public License for more details. * | |
13 | * * | |
14 | * You should have received a copy of the GNU General Public License * | |
15 | * along with this program; if not, write to the * | |
16 | * Free Software Foundation, Inc., * | |
17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. * | |
18 | ***************************************************************************/ | |
19 | ||
20 | /* | |
21 | * SIO functions. | |
22 | */ | |
23 | ||
24 | #include "sio.h" | |
25 | #include <sys/stat.h> | |
26 | ||
226a5691 | 27 | #ifdef USE_LIBRETRO_VFS |
28 | #include <streams/file_stream_transforms.h> | |
29 | #endif | |
30 | ||
ef79bbde P |
31 | // Status Flags |
32 | #define TX_RDY 0x0001 | |
33 | #define RX_RDY 0x0002 | |
34 | #define TX_EMPTY 0x0004 | |
35 | #define PARITY_ERR 0x0008 | |
36 | #define RX_OVERRUN 0x0010 | |
37 | #define FRAMING_ERR 0x0020 | |
38 | #define SYNC_DETECT 0x0040 | |
39 | #define DSR 0x0080 | |
40 | #define CTS 0x0100 | |
41 | #define IRQ 0x0200 | |
42 | ||
43 | // Control Flags | |
44 | #define TX_PERM 0x0001 | |
45 | #define DTR 0x0002 | |
46 | #define RX_PERM 0x0004 | |
47 | #define BREAK 0x0008 | |
48 | #define RESET_ERR 0x0010 | |
49 | #define RTS 0x0020 | |
50 | #define SIO_RESET 0x0040 | |
51 | ||
52 | // *** FOR WORKS ON PADS AND MEMORY CARDS ***** | |
53 | ||
54 | static unsigned char buf[256]; | |
f3a77032 | 55 | static unsigned char cardh1[4] = { 0xff, 0x08, 0x5a, 0x5d }; |
56 | static unsigned char cardh2[4] = { 0xff, 0x08, 0x5a, 0x5d }; | |
ef79bbde P |
57 | |
58 | // Transfer Ready and the Buffer is Empty | |
59 | // static unsigned short StatReg = 0x002b; | |
60 | static unsigned short StatReg = TX_RDY | TX_EMPTY; | |
61 | static unsigned short ModeReg; | |
62 | static unsigned short CtrlReg; | |
63 | static unsigned short BaudReg; | |
64 | ||
65 | static unsigned int bufcount; | |
66 | static unsigned int parp; | |
67 | static unsigned int mcdst, rdwr; | |
68 | static unsigned char adrH, adrL; | |
69 | static unsigned int padst; | |
70 | ||
71 | char Mcd1Data[MCD_SIZE], Mcd2Data[MCD_SIZE]; | |
f3a77032 | 72 | char McdDisable[2]; |
ef79bbde | 73 | |
d28b54b1 | 74 | #define SIO_INT(eCycle) { \ |
75 | if (!Config.Sio) { \ | |
76 | psxRegs.interrupt |= (1 << PSXINT_SIO); \ | |
77 | psxRegs.intCycle[PSXINT_SIO].cycle = eCycle; \ | |
78 | psxRegs.intCycle[PSXINT_SIO].sCycle = psxRegs.cycle; \ | |
79 | new_dyna_set_event(PSXINT_SIO, eCycle); \ | |
80 | } \ | |
81 | } | |
82 | ||
ef79bbde P |
83 | // clk cycle byte |
84 | // 4us * 8bits = (PSXCLK / 1000000) * 32; (linuzappz) | |
85 | // TODO: add SioModePrescaler and BaudReg | |
d28b54b1 | 86 | #define SIO_CYCLES 535 |
ef79bbde P |
87 | |
88 | void sioWrite8(unsigned char value) { | |
89 | #ifdef PAD_LOG | |
90 | PAD_LOG("sio write8 %x\n", value); | |
91 | #endif | |
92 | switch (padst) { | |
d28b54b1 | 93 | case 1: SIO_INT(SIO_CYCLES); |
ef79bbde P |
94 | if ((value & 0x40) == 0x40) { |
95 | padst = 2; parp = 1; | |
96 | if (!Config.UseNet) { | |
97 | switch (CtrlReg & 0x2002) { | |
98 | case 0x0002: | |
99 | buf[parp] = PAD1_poll(value); | |
100 | break; | |
101 | case 0x2002: | |
102 | buf[parp] = PAD2_poll(value); | |
103 | break; | |
104 | } | |
105 | }/* else { | |
106 | // SysPrintf("%x: %x, %x, %x, %x\n", CtrlReg&0x2002, buf[2], buf[3], buf[4], buf[5]); | |
107 | }*/ | |
108 | ||
109 | if (!(buf[parp] & 0x0f)) { | |
110 | bufcount = 2 + 32; | |
111 | } else { | |
112 | bufcount = 2 + (buf[parp] & 0x0f) * 2; | |
113 | } | |
114 | if (buf[parp] == 0x41) { | |
115 | switch (value) { | |
116 | case 0x43: | |
117 | buf[1] = 0x43; | |
118 | break; | |
119 | case 0x45: | |
120 | buf[1] = 0xf3; | |
121 | break; | |
122 | } | |
123 | } | |
b62c0ebc | 124 | // NegCon - Wipeout 3 |
125 | if( buf[parp] == 0x23 ) { | |
126 | switch (value) { | |
127 | // enter config mode | |
128 | case 0x43: | |
129 | buf[1] = 0x79; | |
130 | break; | |
131 | ||
132 | // get status | |
133 | case 0x45: | |
134 | buf[1] = 0xf3; | |
135 | break; | |
136 | } | |
137 | } | |
ef79bbde P |
138 | } |
139 | else padst = 0; | |
140 | return; | |
141 | case 2: | |
142 | parp++; | |
143 | /* if (buf[1] == 0x45) { | |
144 | buf[parp] = 0; | |
d28b54b1 | 145 | SIO_INT(SIO_CYCLES); |
ef79bbde P |
146 | return; |
147 | }*/ | |
148 | if (!Config.UseNet) { | |
149 | switch (CtrlReg & 0x2002) { | |
150 | case 0x0002: buf[parp] = PAD1_poll(value); break; | |
151 | case 0x2002: buf[parp] = PAD2_poll(value); break; | |
152 | } | |
153 | } | |
154 | ||
155 | if (parp == bufcount) { padst = 0; return; } | |
d28b54b1 | 156 | SIO_INT(SIO_CYCLES); |
ef79bbde P |
157 | return; |
158 | } | |
159 | ||
160 | switch (mcdst) { | |
161 | case 1: | |
d28b54b1 | 162 | SIO_INT(SIO_CYCLES); |
ef79bbde P |
163 | if (rdwr) { parp++; return; } |
164 | parp = 1; | |
165 | switch (value) { | |
166 | case 0x52: rdwr = 1; break; | |
167 | case 0x57: rdwr = 2; break; | |
168 | default: mcdst = 0; | |
169 | } | |
170 | return; | |
171 | case 2: // address H | |
d28b54b1 | 172 | SIO_INT(SIO_CYCLES); |
ef79bbde P |
173 | adrH = value; |
174 | *buf = 0; | |
175 | parp = 0; | |
176 | bufcount = 1; | |
177 | mcdst = 3; | |
178 | return; | |
179 | case 3: // address L | |
d28b54b1 | 180 | SIO_INT(SIO_CYCLES); |
ef79bbde P |
181 | adrL = value; |
182 | *buf = adrH; | |
183 | parp = 0; | |
184 | bufcount = 1; | |
185 | mcdst = 4; | |
186 | return; | |
187 | case 4: | |
d28b54b1 | 188 | SIO_INT(SIO_CYCLES); |
ef79bbde P |
189 | parp = 0; |
190 | switch (rdwr) { | |
191 | case 1: // read | |
192 | buf[0] = 0x5c; | |
193 | buf[1] = 0x5d; | |
194 | buf[2] = adrH; | |
195 | buf[3] = adrL; | |
196 | switch (CtrlReg & 0x2002) { | |
197 | case 0x0002: | |
198 | memcpy(&buf[4], Mcd1Data + (adrL | (adrH << 8)) * 128, 128); | |
199 | break; | |
200 | case 0x2002: | |
201 | memcpy(&buf[4], Mcd2Data + (adrL | (adrH << 8)) * 128, 128); | |
202 | break; | |
203 | } | |
204 | { | |
205 | char xor = 0; | |
206 | int i; | |
207 | for (i = 2; i < 128 + 4; i++) | |
208 | xor ^= buf[i]; | |
209 | buf[132] = xor; | |
210 | } | |
211 | buf[133] = 0x47; | |
212 | bufcount = 133; | |
213 | break; | |
214 | case 2: // write | |
215 | buf[0] = adrL; | |
216 | buf[1] = value; | |
217 | buf[129] = 0x5c; | |
218 | buf[130] = 0x5d; | |
219 | buf[131] = 0x47; | |
220 | bufcount = 131; | |
221 | break; | |
222 | } | |
223 | mcdst = 5; | |
224 | return; | |
225 | case 5: | |
226 | parp++; | |
f3a77032 | 227 | if ((rdwr == 1 && parp == 132) || |
228 | (rdwr == 2 && parp == 129)) { | |
229 | // clear "new card" flags | |
230 | if (CtrlReg & 0x2000) | |
231 | cardh2[1] &= ~8; | |
232 | else | |
233 | cardh1[1] &= ~8; | |
234 | } | |
ef79bbde P |
235 | if (rdwr == 2) { |
236 | if (parp < 128) buf[parp + 1] = value; | |
237 | } | |
d28b54b1 | 238 | SIO_INT(SIO_CYCLES); |
ef79bbde P |
239 | return; |
240 | } | |
241 | ||
242 | switch (value) { | |
243 | case 0x01: // start pad | |
244 | StatReg |= RX_RDY; // Transfer is Ready | |
245 | ||
246 | if (!Config.UseNet) { | |
247 | switch (CtrlReg & 0x2002) { | |
248 | case 0x0002: buf[0] = PAD1_startPoll(1); break; | |
249 | case 0x2002: buf[0] = PAD2_startPoll(2); break; | |
250 | } | |
251 | } else { | |
252 | if ((CtrlReg & 0x2002) == 0x0002) { | |
253 | int i, j; | |
254 | ||
255 | PAD1_startPoll(1); | |
256 | buf[0] = 0; | |
257 | buf[1] = PAD1_poll(0x42); | |
258 | if (!(buf[1] & 0x0f)) { | |
259 | bufcount = 32; | |
260 | } else { | |
261 | bufcount = (buf[1] & 0x0f) * 2; | |
262 | } | |
263 | buf[2] = PAD1_poll(0); | |
264 | i = 3; | |
265 | j = bufcount; | |
266 | while (j--) { | |
267 | buf[i++] = PAD1_poll(0); | |
268 | } | |
269 | bufcount+= 3; | |
270 | ||
271 | if (NET_sendPadData(buf, bufcount) == -1) | |
272 | netError(); | |
273 | ||
274 | if (NET_recvPadData(buf, 1) == -1) | |
275 | netError(); | |
276 | if (NET_recvPadData(buf + 128, 2) == -1) | |
277 | netError(); | |
278 | } else { | |
279 | memcpy(buf, buf + 128, 32); | |
280 | } | |
281 | } | |
282 | ||
283 | bufcount = 2; | |
284 | parp = 0; | |
285 | padst = 1; | |
d28b54b1 | 286 | SIO_INT(SIO_CYCLES); |
ef79bbde P |
287 | return; |
288 | case 0x81: // start memcard | |
f3a77032 | 289 | if (CtrlReg & 0x2000) |
290 | { | |
291 | if (McdDisable[1]) | |
292 | goto no_device; | |
293 | memcpy(buf, cardh2, 4); | |
294 | } | |
295 | else | |
296 | { | |
297 | if (McdDisable[0]) | |
298 | goto no_device; | |
299 | memcpy(buf, cardh1, 4); | |
300 | } | |
ef79bbde | 301 | StatReg |= RX_RDY; |
ef79bbde P |
302 | parp = 0; |
303 | bufcount = 3; | |
304 | mcdst = 1; | |
305 | rdwr = 0; | |
d28b54b1 | 306 | SIO_INT(SIO_CYCLES); |
ef79bbde | 307 | return; |
f3a77032 | 308 | default: |
309 | no_device: | |
310 | StatReg |= RX_RDY; | |
311 | buf[0] = 0xff; | |
312 | parp = 0; | |
313 | bufcount = 0; | |
314 | return; | |
ef79bbde P |
315 | } |
316 | } | |
317 | ||
318 | void sioWriteStat16(unsigned short value) { | |
319 | } | |
320 | ||
321 | void sioWriteMode16(unsigned short value) { | |
322 | ModeReg = value; | |
323 | } | |
324 | ||
325 | void sioWriteCtrl16(unsigned short value) { | |
326 | CtrlReg = value & ~RESET_ERR; | |
327 | if (value & RESET_ERR) StatReg &= ~IRQ; | |
7d95d6fa | 328 | if ((CtrlReg & SIO_RESET) || !(CtrlReg & DTR)) { |
ef79bbde P |
329 | padst = 0; mcdst = 0; parp = 0; |
330 | StatReg = TX_RDY | TX_EMPTY; | |
d28b54b1 | 331 | psxRegs.interrupt &= ~(1 << PSXINT_SIO); |
ef79bbde P |
332 | } |
333 | } | |
334 | ||
335 | void sioWriteBaud16(unsigned short value) { | |
336 | BaudReg = value; | |
337 | } | |
338 | ||
339 | unsigned char sioRead8() { | |
340 | unsigned char ret = 0; | |
341 | ||
342 | if ((StatReg & RX_RDY)/* && (CtrlReg & RX_PERM)*/) { | |
343 | // StatReg &= ~RX_OVERRUN; | |
344 | ret = buf[parp]; | |
345 | if (parp == bufcount) { | |
346 | StatReg &= ~RX_RDY; // Receive is not Ready now | |
347 | if (mcdst == 5) { | |
348 | mcdst = 0; | |
349 | if (rdwr == 2) { | |
350 | switch (CtrlReg & 0x2002) { | |
351 | case 0x0002: | |
352 | memcpy(Mcd1Data + (adrL | (adrH << 8)) * 128, &buf[1], 128); | |
353 | SaveMcd(Config.Mcd1, Mcd1Data, (adrL | (adrH << 8)) * 128, 128); | |
354 | break; | |
355 | case 0x2002: | |
356 | memcpy(Mcd2Data + (adrL | (adrH << 8)) * 128, &buf[1], 128); | |
357 | SaveMcd(Config.Mcd2, Mcd2Data, (adrL | (adrH << 8)) * 128, 128); | |
358 | break; | |
359 | } | |
360 | } | |
361 | } | |
362 | if (padst == 2) padst = 0; | |
363 | if (mcdst == 1) { | |
364 | mcdst = 2; | |
365 | StatReg|= RX_RDY; | |
366 | } | |
367 | } | |
368 | } | |
369 | ||
370 | #ifdef PAD_LOG | |
371 | PAD_LOG("sio read8 ;ret = %x\n", ret); | |
372 | #endif | |
373 | return ret; | |
374 | } | |
375 | ||
376 | unsigned short sioReadStat16() { | |
377 | return StatReg; | |
378 | } | |
379 | ||
380 | unsigned short sioReadMode16() { | |
381 | return ModeReg; | |
382 | } | |
383 | ||
384 | unsigned short sioReadCtrl16() { | |
385 | return CtrlReg; | |
386 | } | |
387 | ||
388 | unsigned short sioReadBaud16() { | |
389 | return BaudReg; | |
390 | } | |
391 | ||
392 | void netError() { | |
393 | ClosePlugins(); | |
394 | SysMessage(_("Connection closed!\n")); | |
395 | ||
396 | CdromId[0] = '\0'; | |
397 | CdromLabel[0] = '\0'; | |
398 | ||
399 | SysRunGui(); | |
400 | } | |
401 | ||
402 | void sioInterrupt() { | |
403 | #ifdef PAD_LOG | |
404 | PAD_LOG("Sio Interrupt (CP0.Status = %x)\n", psxRegs.CP0.n.Status); | |
405 | #endif | |
406 | // SysPrintf("Sio Interrupt\n"); | |
aa35134a | 407 | if (!(StatReg & IRQ)) { |
408 | StatReg |= IRQ; | |
409 | psxHu32ref(0x1070) |= SWAPu32(0x80); | |
410 | } | |
ef79bbde P |
411 | } |
412 | ||
413 | void LoadMcd(int mcd, char *str) { | |
414 | FILE *f; | |
415 | char *data = NULL; | |
416 | ||
f3a77032 | 417 | if (mcd != 1 && mcd != 2) |
418 | return; | |
ef79bbde | 419 | |
f3a77032 | 420 | if (mcd == 1) { |
421 | data = Mcd1Data; | |
422 | cardh1[1] |= 8; // mark as new | |
423 | } | |
424 | if (mcd == 2) { | |
425 | data = Mcd2Data; | |
426 | cardh2[1] |= 8; | |
427 | } | |
428 | ||
429 | McdDisable[mcd - 1] = 0; | |
5bf56268 | 430 | #ifdef HAVE_LIBRETRO |
431 | // memcard1 is handled by libretro | |
432 | if (mcd == 1) | |
433 | return; | |
434 | #endif | |
435 | ||
6f18d16a | 436 | if (str == NULL || strcmp(str, "none") == 0) { |
f3a77032 | 437 | McdDisable[mcd - 1] = 1; |
438 | return; | |
ef79bbde | 439 | } |
6f18d16a | 440 | if (*str == 0) |
441 | return; | |
442 | ||
226a5691 | 443 | f = fopen(str, "rb"); |
ef79bbde P |
444 | if (f == NULL) { |
445 | SysPrintf(_("The memory card %s doesn't exist - creating it\n"), str); | |
446 | CreateMcd(str); | |
226a5691 | 447 | f = fopen(str, "rb"); |
ef79bbde P |
448 | if (f != NULL) { |
449 | struct stat buf; | |
450 | ||
451 | if (stat(str, &buf) != -1) { | |
452 | if (buf.st_size == MCD_SIZE + 64) | |
453 | fseek(f, 64, SEEK_SET); | |
454 | else if(buf.st_size == MCD_SIZE + 3904) | |
455 | fseek(f, 3904, SEEK_SET); | |
456 | } | |
9361a5aa EC |
457 | if (fread(data, 1, MCD_SIZE, f) != MCD_SIZE) { |
458 | #ifndef NDEBUG | |
459 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
460 | #endif | |
461 | memset(data, 0x00, MCD_SIZE); | |
462 | } | |
ef79bbde P |
463 | fclose(f); |
464 | } | |
465 | else | |
466 | SysMessage(_("Memory card %s failed to load!\n"), str); | |
467 | } | |
468 | else { | |
469 | struct stat buf; | |
470 | SysPrintf(_("Loading memory card %s\n"), str); | |
471 | if (stat(str, &buf) != -1) { | |
472 | if (buf.st_size == MCD_SIZE + 64) | |
473 | fseek(f, 64, SEEK_SET); | |
474 | else if(buf.st_size == MCD_SIZE + 3904) | |
475 | fseek(f, 3904, SEEK_SET); | |
476 | } | |
9361a5aa EC |
477 | if (fread(data, 1, MCD_SIZE, f) != MCD_SIZE) { |
478 | #ifndef NDEBUG | |
479 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
480 | #endif | |
481 | memset(data, 0x00, MCD_SIZE); | |
482 | } | |
ef79bbde P |
483 | fclose(f); |
484 | } | |
485 | } | |
486 | ||
487 | void LoadMcds(char *mcd1, char *mcd2) { | |
488 | LoadMcd(1, mcd1); | |
489 | LoadMcd(2, mcd2); | |
490 | } | |
491 | ||
492 | void SaveMcd(char *mcd, char *data, uint32_t adr, int size) { | |
493 | FILE *f; | |
494 | ||
6f18d16a | 495 | if (mcd == NULL || *mcd == 0 || strcmp(mcd, "none") == 0) |
496 | return; | |
497 | ||
226a5691 | 498 | f = fopen(mcd, "r+b"); |
ef79bbde P |
499 | if (f != NULL) { |
500 | struct stat buf; | |
501 | ||
502 | if (stat(mcd, &buf) != -1) { | |
503 | if (buf.st_size == MCD_SIZE + 64) | |
504 | fseek(f, adr + 64, SEEK_SET); | |
505 | else if (buf.st_size == MCD_SIZE + 3904) | |
506 | fseek(f, adr + 3904, SEEK_SET); | |
507 | else | |
508 | fseek(f, adr, SEEK_SET); | |
509 | } else | |
510 | fseek(f, adr, SEEK_SET); | |
511 | ||
512 | fwrite(data + adr, 1, size, f); | |
513 | fclose(f); | |
514 | return; | |
515 | } | |
516 | ||
517 | #if 0 | |
518 | // try to create it again if we can't open it | |
519 | f = fopen(mcd, "wb"); | |
520 | if (f != NULL) { | |
521 | fwrite(data, 1, MCD_SIZE, f); | |
522 | fclose(f); | |
523 | } | |
524 | #endif | |
525 | ||
526 | ConvertMcd(mcd, data); | |
527 | } | |
528 | ||
529 | void CreateMcd(char *mcd) { | |
530 | FILE *f; | |
531 | struct stat buf; | |
532 | int s = MCD_SIZE; | |
533 | int i = 0, j; | |
534 | ||
226a5691 | 535 | f = fopen(mcd, "wb"); |
ef79bbde P |
536 | if (f == NULL) |
537 | return; | |
538 | ||
539 | if (stat(mcd, &buf) != -1) { | |
540 | if ((buf.st_size == MCD_SIZE + 3904) || strstr(mcd, ".gme")) { | |
541 | s = s + 3904; | |
542 | fputc('1', f); | |
543 | s--; | |
544 | fputc('2', f); | |
545 | s--; | |
546 | fputc('3', f); | |
547 | s--; | |
548 | fputc('-', f); | |
549 | s--; | |
550 | fputc('4', f); | |
551 | s--; | |
552 | fputc('5', f); | |
553 | s--; | |
554 | fputc('6', f); | |
555 | s--; | |
556 | fputc('-', f); | |
557 | s--; | |
558 | fputc('S', f); | |
559 | s--; | |
560 | fputc('T', f); | |
561 | s--; | |
562 | fputc('D', f); | |
563 | s--; | |
564 | for (i = 0; i < 7; i++) { | |
565 | fputc(0, f); | |
566 | s--; | |
567 | } | |
568 | fputc(1, f); | |
569 | s--; | |
570 | fputc(0, f); | |
571 | s--; | |
572 | fputc(1, f); | |
573 | s--; | |
574 | fputc('M', f); | |
575 | s--; | |
576 | fputc('Q', f); | |
577 | s--; | |
578 | for (i = 0; i < 14; i++) { | |
579 | fputc(0xa0, f); | |
580 | s--; | |
581 | } | |
582 | fputc(0, f); | |
583 | s--; | |
584 | fputc(0xff, f); | |
585 | while (s-- > (MCD_SIZE + 1)) | |
586 | fputc(0, f); | |
587 | } else if ((buf.st_size == MCD_SIZE + 64) || strstr(mcd, ".mem") || strstr(mcd, ".vgs")) { | |
588 | s = s + 64; | |
589 | fputc('V', f); | |
590 | s--; | |
591 | fputc('g', f); | |
592 | s--; | |
593 | fputc('s', f); | |
594 | s--; | |
595 | fputc('M', f); | |
596 | s--; | |
597 | for (i = 0; i < 3; i++) { | |
598 | fputc(1, f); | |
599 | s--; | |
600 | fputc(0, f); | |
601 | s--; | |
602 | fputc(0, f); | |
603 | s--; | |
604 | fputc(0, f); | |
605 | s--; | |
606 | } | |
607 | fputc(0, f); | |
608 | s--; | |
609 | fputc(2, f); | |
610 | while (s-- > (MCD_SIZE + 1)) | |
611 | fputc(0, f); | |
612 | } | |
613 | } | |
614 | fputc('M', f); | |
615 | s--; | |
616 | fputc('C', f); | |
617 | s--; | |
618 | while (s-- > (MCD_SIZE - 127)) | |
619 | fputc(0, f); | |
620 | fputc(0xe, f); | |
621 | s--; | |
622 | ||
623 | for (i = 0; i < 15; i++) { // 15 blocks | |
624 | fputc(0xa0, f); | |
625 | s--; | |
626 | fputc(0x00, f); | |
627 | s--; | |
628 | fputc(0x00, f); | |
629 | s--; | |
630 | fputc(0x00, f); | |
631 | s--; | |
632 | fputc(0x00, f); | |
633 | s--; | |
634 | fputc(0x00, f); | |
635 | s--; | |
636 | fputc(0x00, f); | |
637 | s--; | |
638 | fputc(0x00, f); | |
639 | s--; | |
640 | fputc(0xff, f); | |
641 | s--; | |
642 | fputc(0xff, f); | |
643 | s--; | |
644 | for (j = 0; j < 117; j++) { | |
645 | fputc(0x00, f); | |
646 | s--; | |
647 | } | |
648 | fputc(0xa0, f); | |
649 | s--; | |
650 | } | |
651 | ||
652 | for (i = 0; i < 20; i++) { | |
653 | fputc(0xff, f); | |
654 | s--; | |
655 | fputc(0xff, f); | |
656 | s--; | |
657 | fputc(0xff, f); | |
658 | s--; | |
659 | fputc(0xff, f); | |
660 | s--; | |
661 | fputc(0x00, f); | |
662 | s--; | |
663 | fputc(0x00, f); | |
664 | s--; | |
665 | fputc(0x00, f); | |
666 | s--; | |
667 | fputc(0x00, f); | |
668 | s--; | |
669 | fputc(0xff, f); | |
670 | s--; | |
671 | fputc(0xff, f); | |
672 | s--; | |
673 | for (j = 0; j < 118; j++) { | |
674 | fputc(0x00, f); | |
675 | s--; | |
676 | } | |
677 | } | |
678 | ||
679 | while ((s--) >= 0) | |
680 | fputc(0, f); | |
681 | ||
682 | fclose(f); | |
683 | } | |
684 | ||
685 | void ConvertMcd(char *mcd, char *data) { | |
686 | FILE *f; | |
687 | int i = 0; | |
688 | int s = MCD_SIZE; | |
689 | ||
690 | if (strstr(mcd, ".gme")) { | |
691 | f = fopen(mcd, "wb"); | |
692 | if (f != NULL) { | |
693 | fwrite(data - 3904, 1, MCD_SIZE + 3904, f); | |
694 | fclose(f); | |
695 | } | |
696 | f = fopen(mcd, "r+"); | |
697 | s = s + 3904; | |
698 | fputc('1', f); s--; | |
699 | fputc('2', f); s--; | |
700 | fputc('3', f); s--; | |
701 | fputc('-', f); s--; | |
702 | fputc('4', f); s--; | |
703 | fputc('5', f); s--; | |
704 | fputc('6', f); s--; | |
705 | fputc('-', f); s--; | |
706 | fputc('S', f); s--; | |
707 | fputc('T', f); s--; | |
708 | fputc('D', f); s--; | |
709 | for (i = 0; i < 7; i++) { | |
710 | fputc(0, f); s--; | |
711 | } | |
712 | fputc(1, f); s--; | |
713 | fputc(0, f); s--; | |
714 | fputc(1, f); s--; | |
715 | fputc('M', f); s--; | |
716 | fputc('Q', f); s--; | |
717 | for(i=0;i<14;i++) { | |
718 | fputc(0xa0, f); s--; | |
719 | } | |
720 | fputc(0, f); s--; | |
721 | fputc(0xff, f); | |
722 | while (s-- > (MCD_SIZE+1)) fputc(0, f); | |
723 | fclose(f); | |
724 | } else if(strstr(mcd, ".mem") || strstr(mcd,".vgs")) { | |
725 | f = fopen(mcd, "wb"); | |
726 | if (f != NULL) { | |
727 | fwrite(data-64, 1, MCD_SIZE+64, f); | |
728 | fclose(f); | |
729 | } | |
730 | f = fopen(mcd, "r+"); | |
731 | s = s + 64; | |
732 | fputc('V', f); s--; | |
733 | fputc('g', f); s--; | |
734 | fputc('s', f); s--; | |
735 | fputc('M', f); s--; | |
736 | for(i=0;i<3;i++) { | |
737 | fputc(1, f); s--; | |
738 | fputc(0, f); s--; | |
739 | fputc(0, f); s--; | |
740 | fputc(0, f); s--; | |
741 | } | |
742 | fputc(0, f); s--; | |
743 | fputc(2, f); | |
744 | while (s-- > (MCD_SIZE+1)) fputc(0, f); | |
745 | fclose(f); | |
746 | } else { | |
747 | f = fopen(mcd, "wb"); | |
748 | if (f != NULL) { | |
749 | fwrite(data, 1, MCD_SIZE, f); | |
750 | fclose(f); | |
751 | } | |
752 | } | |
753 | } | |
754 | ||
755 | void GetMcdBlockInfo(int mcd, int block, McdBlock *Info) { | |
ab948f7e | 756 | char *data = NULL, *ptr, *str, *sstr; |
ef79bbde P |
757 | unsigned short clut[16]; |
758 | unsigned short c; | |
759 | int i, x; | |
760 | ||
761 | memset(Info, 0, sizeof(McdBlock)); | |
762 | ||
f3a77032 | 763 | if (mcd != 1 && mcd != 2) |
764 | return; | |
765 | ||
766 | if (McdDisable[mcd - 1]) | |
767 | return; | |
768 | ||
ef79bbde P |
769 | if (mcd == 1) data = Mcd1Data; |
770 | if (mcd == 2) data = Mcd2Data; | |
771 | ||
772 | ptr = data + block * 8192 + 2; | |
773 | ||
774 | Info->IconCount = *ptr & 0x3; | |
775 | ||
776 | ptr += 2; | |
777 | ||
778 | x = 0; | |
779 | ||
780 | str = Info->Title; | |
781 | sstr = Info->sTitle; | |
782 | ||
783 | for (i = 0; i < 48; i++) { | |
784 | c = *(ptr) << 8; | |
785 | c |= *(ptr + 1); | |
786 | if (!c) break; | |
787 | ||
788 | // Convert ASCII characters to half-width | |
789 | if (c >= 0x8281 && c <= 0x829A) | |
790 | c = (c - 0x8281) + 'a'; | |
791 | else if (c >= 0x824F && c <= 0x827A) | |
792 | c = (c - 0x824F) + '0'; | |
793 | else if (c == 0x8140) c = ' '; | |
794 | else if (c == 0x8143) c = ','; | |
795 | else if (c == 0x8144) c = '.'; | |
796 | else if (c == 0x8146) c = ':'; | |
797 | else if (c == 0x8147) c = ';'; | |
798 | else if (c == 0x8148) c = '?'; | |
799 | else if (c == 0x8149) c = '!'; | |
800 | else if (c == 0x815E) c = '/'; | |
801 | else if (c == 0x8168) c = '"'; | |
802 | else if (c == 0x8169) c = '('; | |
803 | else if (c == 0x816A) c = ')'; | |
804 | else if (c == 0x816D) c = '['; | |
805 | else if (c == 0x816E) c = ']'; | |
806 | else if (c == 0x817C) c = '-'; | |
807 | else { | |
808 | str[i] = ' '; | |
809 | sstr[x++] = *ptr++; sstr[x++] = *ptr++; | |
810 | continue; | |
811 | } | |
812 | ||
813 | str[i] = sstr[x++] = c; | |
814 | ptr += 2; | |
815 | } | |
816 | ||
817 | trim(str); | |
818 | trim(sstr); | |
819 | ||
820 | ptr = data + block * 8192 + 0x60; // icon palette data | |
821 | ||
822 | for (i = 0; i < 16; i++) { | |
823 | clut[i] = *((unsigned short *)ptr); | |
824 | ptr += 2; | |
825 | } | |
826 | ||
827 | for (i = 0; i < Info->IconCount; i++) { | |
828 | short *icon = &Info->Icon[i * 16 * 16]; | |
829 | ||
830 | ptr = data + block * 8192 + 128 + 128 * i; // icon data | |
831 | ||
832 | for (x = 0; x < 16 * 16; x++) { | |
833 | icon[x++] = clut[*ptr & 0xf]; | |
834 | icon[x] = clut[*ptr >> 4]; | |
835 | ptr++; | |
836 | } | |
837 | } | |
838 | ||
839 | ptr = data + block * 128; | |
840 | ||
841 | Info->Flags = *ptr; | |
842 | ||
843 | ptr += 0xa; | |
844 | strncpy(Info->ID, ptr, 12); | |
845 | ptr += 12; | |
846 | strncpy(Info->Name, ptr, 16); | |
847 | } | |
848 | ||
496d88d4 | 849 | int sioFreeze(void *f, int Mode) { |
ef79bbde P |
850 | gzfreeze(buf, sizeof(buf)); |
851 | gzfreeze(&StatReg, sizeof(StatReg)); | |
852 | gzfreeze(&ModeReg, sizeof(ModeReg)); | |
853 | gzfreeze(&CtrlReg, sizeof(CtrlReg)); | |
854 | gzfreeze(&BaudReg, sizeof(BaudReg)); | |
855 | gzfreeze(&bufcount, sizeof(bufcount)); | |
856 | gzfreeze(&parp, sizeof(parp)); | |
857 | gzfreeze(&mcdst, sizeof(mcdst)); | |
858 | gzfreeze(&rdwr, sizeof(rdwr)); | |
859 | gzfreeze(&adrH, sizeof(adrH)); | |
860 | gzfreeze(&adrL, sizeof(adrL)); | |
861 | gzfreeze(&padst, sizeof(padst)); | |
862 | ||
863 | return 0; | |
864 | } |