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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 | ||
de74f599 | 24 | #include "misc.h" |
25 | #include "psxcounters.h" | |
ef79bbde P |
26 | #include "sio.h" |
27 | #include <sys/stat.h> | |
28 | ||
7a8d521f | 29 | #ifdef USE_LIBRETRO_VFS |
30 | #include <streams/file_stream_transforms.h> | |
31 | #endif | |
32 | ||
ef79bbde P |
33 | // Status Flags |
34 | #define TX_RDY 0x0001 | |
35 | #define RX_RDY 0x0002 | |
36 | #define TX_EMPTY 0x0004 | |
37 | #define PARITY_ERR 0x0008 | |
38 | #define RX_OVERRUN 0x0010 | |
39 | #define FRAMING_ERR 0x0020 | |
40 | #define SYNC_DETECT 0x0040 | |
41 | #define DSR 0x0080 | |
42 | #define CTS 0x0100 | |
43 | #define IRQ 0x0200 | |
44 | ||
45 | // Control Flags | |
46 | #define TX_PERM 0x0001 | |
47 | #define DTR 0x0002 | |
48 | #define RX_PERM 0x0004 | |
49 | #define BREAK 0x0008 | |
50 | #define RESET_ERR 0x0010 | |
51 | #define RTS 0x0020 | |
52 | #define SIO_RESET 0x0040 | |
53 | ||
54 | // *** FOR WORKS ON PADS AND MEMORY CARDS ***** | |
55 | ||
56 | static unsigned char buf[256]; | |
f3a77032 | 57 | static unsigned char cardh1[4] = { 0xff, 0x08, 0x5a, 0x5d }; |
58 | static unsigned char cardh2[4] = { 0xff, 0x08, 0x5a, 0x5d }; | |
ef79bbde P |
59 | |
60 | // Transfer Ready and the Buffer is Empty | |
61 | // static unsigned short StatReg = 0x002b; | |
62 | static unsigned short StatReg = TX_RDY | TX_EMPTY; | |
63 | static unsigned short ModeReg; | |
64 | static unsigned short CtrlReg; | |
65 | static unsigned short BaudReg; | |
66 | ||
67 | static unsigned int bufcount; | |
68 | static unsigned int parp; | |
69 | static unsigned int mcdst, rdwr; | |
70 | static unsigned char adrH, adrL; | |
71 | static unsigned int padst; | |
72 | ||
73 | char Mcd1Data[MCD_SIZE], Mcd2Data[MCD_SIZE]; | |
f3a77032 | 74 | char McdDisable[2]; |
ef79bbde | 75 | |
d28b54b1 | 76 | #define SIO_INT(eCycle) { \ |
d014a471 | 77 | psxRegs.interrupt |= (1 << PSXINT_SIO); \ |
78 | psxRegs.intCycle[PSXINT_SIO].cycle = eCycle; \ | |
79 | psxRegs.intCycle[PSXINT_SIO].sCycle = psxRegs.cycle; \ | |
80 | new_dyna_set_event(PSXINT_SIO, eCycle); \ | |
d28b54b1 | 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) { | |
2db412ad | 89 | int more_data = 0; |
90 | #if 0 | |
91 | s32 framec = psxRegs.cycle - rcnts[3].cycleStart; | |
92 | printf("%d:%03d sio write8 %04x %02x\n", frame_counter, | |
93 | (s32)(framec / (PSXCLK / 60 / 263.0f)), CtrlReg, value); | |
ef79bbde P |
94 | #endif |
95 | switch (padst) { | |
2db412ad | 96 | case 1: |
ef79bbde P |
97 | if ((value & 0x40) == 0x40) { |
98 | padst = 2; parp = 1; | |
2db412ad | 99 | switch (CtrlReg & 0x2002) { |
100 | case 0x0002: | |
101 | buf[parp] = PAD1_poll(value, &more_data); | |
102 | break; | |
103 | case 0x2002: | |
104 | buf[parp] = PAD2_poll(value, &more_data); | |
105 | break; | |
ef79bbde | 106 | } |
2db412ad | 107 | |
108 | if (more_data) { | |
109 | bufcount = parp + 1; | |
110 | SIO_INT(SIO_CYCLES); | |
ef79bbde P |
111 | } |
112 | } | |
113 | else padst = 0; | |
114 | return; | |
115 | case 2: | |
116 | parp++; | |
2db412ad | 117 | switch (CtrlReg & 0x2002) { |
118 | case 0x0002: buf[parp] = PAD1_poll(value, &more_data); break; | |
119 | case 0x2002: buf[parp] = PAD2_poll(value, &more_data); break; | |
ef79bbde P |
120 | } |
121 | ||
2db412ad | 122 | if (more_data) { |
123 | bufcount = parp + 1; | |
124 | SIO_INT(SIO_CYCLES); | |
125 | } | |
ef79bbde P |
126 | return; |
127 | } | |
128 | ||
129 | switch (mcdst) { | |
130 | case 1: | |
d28b54b1 | 131 | SIO_INT(SIO_CYCLES); |
ef79bbde P |
132 | if (rdwr) { parp++; return; } |
133 | parp = 1; | |
134 | switch (value) { | |
135 | case 0x52: rdwr = 1; break; | |
136 | case 0x57: rdwr = 2; break; | |
137 | default: mcdst = 0; | |
138 | } | |
139 | return; | |
140 | case 2: // address H | |
d28b54b1 | 141 | SIO_INT(SIO_CYCLES); |
ef79bbde P |
142 | adrH = value; |
143 | *buf = 0; | |
144 | parp = 0; | |
145 | bufcount = 1; | |
146 | mcdst = 3; | |
147 | return; | |
148 | case 3: // address L | |
d28b54b1 | 149 | SIO_INT(SIO_CYCLES); |
ef79bbde P |
150 | adrL = value; |
151 | *buf = adrH; | |
152 | parp = 0; | |
153 | bufcount = 1; | |
154 | mcdst = 4; | |
155 | return; | |
156 | case 4: | |
d28b54b1 | 157 | SIO_INT(SIO_CYCLES); |
ef79bbde P |
158 | parp = 0; |
159 | switch (rdwr) { | |
160 | case 1: // read | |
161 | buf[0] = 0x5c; | |
162 | buf[1] = 0x5d; | |
163 | buf[2] = adrH; | |
164 | buf[3] = adrL; | |
165 | switch (CtrlReg & 0x2002) { | |
166 | case 0x0002: | |
167 | memcpy(&buf[4], Mcd1Data + (adrL | (adrH << 8)) * 128, 128); | |
168 | break; | |
169 | case 0x2002: | |
170 | memcpy(&buf[4], Mcd2Data + (adrL | (adrH << 8)) * 128, 128); | |
171 | break; | |
172 | } | |
173 | { | |
174 | char xor = 0; | |
175 | int i; | |
176 | for (i = 2; i < 128 + 4; i++) | |
177 | xor ^= buf[i]; | |
178 | buf[132] = xor; | |
179 | } | |
180 | buf[133] = 0x47; | |
181 | bufcount = 133; | |
182 | break; | |
183 | case 2: // write | |
184 | buf[0] = adrL; | |
185 | buf[1] = value; | |
186 | buf[129] = 0x5c; | |
187 | buf[130] = 0x5d; | |
188 | buf[131] = 0x47; | |
189 | bufcount = 131; | |
190 | break; | |
191 | } | |
192 | mcdst = 5; | |
193 | return; | |
194 | case 5: | |
195 | parp++; | |
f3a77032 | 196 | if ((rdwr == 1 && parp == 132) || |
197 | (rdwr == 2 && parp == 129)) { | |
198 | // clear "new card" flags | |
199 | if (CtrlReg & 0x2000) | |
200 | cardh2[1] &= ~8; | |
201 | else | |
202 | cardh1[1] &= ~8; | |
203 | } | |
ef79bbde P |
204 | if (rdwr == 2) { |
205 | if (parp < 128) buf[parp + 1] = value; | |
206 | } | |
d28b54b1 | 207 | SIO_INT(SIO_CYCLES); |
ef79bbde P |
208 | return; |
209 | } | |
210 | ||
211 | switch (value) { | |
212 | case 0x01: // start pad | |
213 | StatReg |= RX_RDY; // Transfer is Ready | |
214 | ||
2db412ad | 215 | switch (CtrlReg & 0x2002) { |
216 | case 0x0002: buf[0] = PAD1_startPoll(1); break; | |
217 | case 0x2002: buf[0] = PAD2_startPoll(2); break; | |
ef79bbde | 218 | } |
2db412ad | 219 | bufcount = 1; |
ef79bbde P |
220 | parp = 0; |
221 | padst = 1; | |
d28b54b1 | 222 | SIO_INT(SIO_CYCLES); |
ef79bbde P |
223 | return; |
224 | case 0x81: // start memcard | |
f3a77032 | 225 | if (CtrlReg & 0x2000) |
226 | { | |
227 | if (McdDisable[1]) | |
228 | goto no_device; | |
229 | memcpy(buf, cardh2, 4); | |
230 | } | |
231 | else | |
232 | { | |
233 | if (McdDisable[0]) | |
234 | goto no_device; | |
235 | memcpy(buf, cardh1, 4); | |
236 | } | |
ef79bbde | 237 | StatReg |= RX_RDY; |
ef79bbde P |
238 | parp = 0; |
239 | bufcount = 3; | |
240 | mcdst = 1; | |
241 | rdwr = 0; | |
d28b54b1 | 242 | SIO_INT(SIO_CYCLES); |
ef79bbde | 243 | return; |
f3a77032 | 244 | default: |
245 | no_device: | |
246 | StatReg |= RX_RDY; | |
247 | buf[0] = 0xff; | |
248 | parp = 0; | |
249 | bufcount = 0; | |
250 | return; | |
ef79bbde P |
251 | } |
252 | } | |
253 | ||
254 | void sioWriteStat16(unsigned short value) { | |
255 | } | |
256 | ||
257 | void sioWriteMode16(unsigned short value) { | |
258 | ModeReg = value; | |
259 | } | |
260 | ||
261 | void sioWriteCtrl16(unsigned short value) { | |
262 | CtrlReg = value & ~RESET_ERR; | |
263 | if (value & RESET_ERR) StatReg &= ~IRQ; | |
7d95d6fa | 264 | if ((CtrlReg & SIO_RESET) || !(CtrlReg & DTR)) { |
ef79bbde P |
265 | padst = 0; mcdst = 0; parp = 0; |
266 | StatReg = TX_RDY | TX_EMPTY; | |
d28b54b1 | 267 | psxRegs.interrupt &= ~(1 << PSXINT_SIO); |
ef79bbde P |
268 | } |
269 | } | |
270 | ||
271 | void sioWriteBaud16(unsigned short value) { | |
272 | BaudReg = value; | |
273 | } | |
274 | ||
275 | unsigned char sioRead8() { | |
276 | unsigned char ret = 0; | |
277 | ||
278 | if ((StatReg & RX_RDY)/* && (CtrlReg & RX_PERM)*/) { | |
279 | // StatReg &= ~RX_OVERRUN; | |
280 | ret = buf[parp]; | |
281 | if (parp == bufcount) { | |
282 | StatReg &= ~RX_RDY; // Receive is not Ready now | |
283 | if (mcdst == 5) { | |
284 | mcdst = 0; | |
285 | if (rdwr == 2) { | |
286 | switch (CtrlReg & 0x2002) { | |
287 | case 0x0002: | |
288 | memcpy(Mcd1Data + (adrL | (adrH << 8)) * 128, &buf[1], 128); | |
289 | SaveMcd(Config.Mcd1, Mcd1Data, (adrL | (adrH << 8)) * 128, 128); | |
290 | break; | |
291 | case 0x2002: | |
292 | memcpy(Mcd2Data + (adrL | (adrH << 8)) * 128, &buf[1], 128); | |
293 | SaveMcd(Config.Mcd2, Mcd2Data, (adrL | (adrH << 8)) * 128, 128); | |
294 | break; | |
295 | } | |
296 | } | |
297 | } | |
298 | if (padst == 2) padst = 0; | |
299 | if (mcdst == 1) { | |
300 | mcdst = 2; | |
301 | StatReg|= RX_RDY; | |
302 | } | |
303 | } | |
304 | } | |
305 | ||
2db412ad | 306 | #if 0 |
307 | s32 framec = psxRegs.cycle - rcnts[3].cycleStart; | |
308 | printf("%d:%03d sio read8 %04x %02x\n", frame_counter, | |
309 | (s32)((float)framec / (PSXCLK / 60 / 263.0f)), CtrlReg, ret); | |
ef79bbde P |
310 | #endif |
311 | return ret; | |
312 | } | |
313 | ||
314 | unsigned short sioReadStat16() { | |
315 | return StatReg; | |
316 | } | |
317 | ||
318 | unsigned short sioReadMode16() { | |
319 | return ModeReg; | |
320 | } | |
321 | ||
322 | unsigned short sioReadCtrl16() { | |
323 | return CtrlReg; | |
324 | } | |
325 | ||
326 | unsigned short sioReadBaud16() { | |
327 | return BaudReg; | |
328 | } | |
329 | ||
ef79bbde P |
330 | void sioInterrupt() { |
331 | #ifdef PAD_LOG | |
332 | PAD_LOG("Sio Interrupt (CP0.Status = %x)\n", psxRegs.CP0.n.Status); | |
333 | #endif | |
334 | // SysPrintf("Sio Interrupt\n"); | |
aa35134a | 335 | if (!(StatReg & IRQ)) { |
336 | StatReg |= IRQ; | |
337 | psxHu32ref(0x1070) |= SWAPu32(0x80); | |
338 | } | |
ef79bbde P |
339 | } |
340 | ||
341 | void LoadMcd(int mcd, char *str) { | |
342 | FILE *f; | |
343 | char *data = NULL; | |
344 | ||
f3a77032 | 345 | if (mcd != 1 && mcd != 2) |
346 | return; | |
ef79bbde | 347 | |
f3a77032 | 348 | if (mcd == 1) { |
349 | data = Mcd1Data; | |
350 | cardh1[1] |= 8; // mark as new | |
351 | } | |
352 | if (mcd == 2) { | |
353 | data = Mcd2Data; | |
354 | cardh2[1] |= 8; | |
355 | } | |
356 | ||
357 | McdDisable[mcd - 1] = 0; | |
7a8d521f | 358 | #ifdef HAVE_LIBRETRO |
359 | // memcard1 is handled by libretro | |
360 | if (mcd == 1) | |
361 | return; | |
362 | #endif | |
363 | ||
6f18d16a | 364 | if (str == NULL || strcmp(str, "none") == 0) { |
f3a77032 | 365 | McdDisable[mcd - 1] = 1; |
366 | return; | |
ef79bbde | 367 | } |
6f18d16a | 368 | if (*str == 0) |
369 | return; | |
370 | ||
ef79bbde P |
371 | f = fopen(str, "rb"); |
372 | if (f == NULL) { | |
373 | SysPrintf(_("The memory card %s doesn't exist - creating it\n"), str); | |
374 | CreateMcd(str); | |
375 | f = fopen(str, "rb"); | |
376 | if (f != NULL) { | |
377 | struct stat buf; | |
378 | ||
379 | if (stat(str, &buf) != -1) { | |
380 | if (buf.st_size == MCD_SIZE + 64) | |
381 | fseek(f, 64, SEEK_SET); | |
382 | else if(buf.st_size == MCD_SIZE + 3904) | |
383 | fseek(f, 3904, SEEK_SET); | |
384 | } | |
7a8d521f | 385 | if (fread(data, 1, MCD_SIZE, f) != MCD_SIZE) { |
386 | #ifndef NDEBUG | |
387 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
388 | #endif | |
389 | memset(data, 0x00, MCD_SIZE); | |
390 | } | |
ef79bbde P |
391 | fclose(f); |
392 | } | |
393 | else | |
394 | SysMessage(_("Memory card %s failed to load!\n"), str); | |
395 | } | |
396 | else { | |
397 | struct stat buf; | |
398 | SysPrintf(_("Loading memory card %s\n"), str); | |
399 | if (stat(str, &buf) != -1) { | |
400 | if (buf.st_size == MCD_SIZE + 64) | |
401 | fseek(f, 64, SEEK_SET); | |
402 | else if(buf.st_size == MCD_SIZE + 3904) | |
403 | fseek(f, 3904, SEEK_SET); | |
404 | } | |
7a8d521f | 405 | if (fread(data, 1, MCD_SIZE, f) != MCD_SIZE) { |
406 | #ifndef NDEBUG | |
407 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
408 | #endif | |
409 | memset(data, 0x00, MCD_SIZE); | |
410 | } | |
ef79bbde P |
411 | fclose(f); |
412 | } | |
413 | } | |
414 | ||
415 | void LoadMcds(char *mcd1, char *mcd2) { | |
416 | LoadMcd(1, mcd1); | |
417 | LoadMcd(2, mcd2); | |
418 | } | |
419 | ||
420 | void SaveMcd(char *mcd, char *data, uint32_t adr, int size) { | |
421 | FILE *f; | |
422 | ||
6f18d16a | 423 | if (mcd == NULL || *mcd == 0 || strcmp(mcd, "none") == 0) |
424 | return; | |
425 | ||
ef79bbde P |
426 | f = fopen(mcd, "r+b"); |
427 | if (f != NULL) { | |
428 | struct stat buf; | |
429 | ||
430 | if (stat(mcd, &buf) != -1) { | |
431 | if (buf.st_size == MCD_SIZE + 64) | |
432 | fseek(f, adr + 64, SEEK_SET); | |
433 | else if (buf.st_size == MCD_SIZE + 3904) | |
434 | fseek(f, adr + 3904, SEEK_SET); | |
435 | else | |
436 | fseek(f, adr, SEEK_SET); | |
437 | } else | |
438 | fseek(f, adr, SEEK_SET); | |
439 | ||
440 | fwrite(data + adr, 1, size, f); | |
441 | fclose(f); | |
442 | return; | |
443 | } | |
444 | ||
445 | #if 0 | |
446 | // try to create it again if we can't open it | |
447 | f = fopen(mcd, "wb"); | |
448 | if (f != NULL) { | |
449 | fwrite(data, 1, MCD_SIZE, f); | |
450 | fclose(f); | |
451 | } | |
452 | #endif | |
453 | ||
454 | ConvertMcd(mcd, data); | |
455 | } | |
456 | ||
457 | void CreateMcd(char *mcd) { | |
458 | FILE *f; | |
459 | struct stat buf; | |
460 | int s = MCD_SIZE; | |
461 | int i = 0, j; | |
462 | ||
463 | f = fopen(mcd, "wb"); | |
464 | if (f == NULL) | |
465 | return; | |
466 | ||
467 | if (stat(mcd, &buf) != -1) { | |
468 | if ((buf.st_size == MCD_SIZE + 3904) || strstr(mcd, ".gme")) { | |
469 | s = s + 3904; | |
470 | fputc('1', f); | |
471 | s--; | |
472 | fputc('2', f); | |
473 | s--; | |
474 | fputc('3', f); | |
475 | s--; | |
476 | fputc('-', f); | |
477 | s--; | |
478 | fputc('4', f); | |
479 | s--; | |
480 | fputc('5', f); | |
481 | s--; | |
482 | fputc('6', f); | |
483 | s--; | |
484 | fputc('-', f); | |
485 | s--; | |
486 | fputc('S', f); | |
487 | s--; | |
488 | fputc('T', f); | |
489 | s--; | |
490 | fputc('D', f); | |
491 | s--; | |
492 | for (i = 0; i < 7; i++) { | |
493 | fputc(0, f); | |
494 | s--; | |
495 | } | |
496 | fputc(1, f); | |
497 | s--; | |
498 | fputc(0, f); | |
499 | s--; | |
500 | fputc(1, f); | |
501 | s--; | |
502 | fputc('M', f); | |
503 | s--; | |
504 | fputc('Q', f); | |
505 | s--; | |
506 | for (i = 0; i < 14; i++) { | |
507 | fputc(0xa0, f); | |
508 | s--; | |
509 | } | |
510 | fputc(0, f); | |
511 | s--; | |
512 | fputc(0xff, f); | |
513 | while (s-- > (MCD_SIZE + 1)) | |
514 | fputc(0, f); | |
515 | } else if ((buf.st_size == MCD_SIZE + 64) || strstr(mcd, ".mem") || strstr(mcd, ".vgs")) { | |
516 | s = s + 64; | |
517 | fputc('V', f); | |
518 | s--; | |
519 | fputc('g', f); | |
520 | s--; | |
521 | fputc('s', f); | |
522 | s--; | |
523 | fputc('M', f); | |
524 | s--; | |
525 | for (i = 0; i < 3; i++) { | |
526 | fputc(1, f); | |
527 | s--; | |
528 | fputc(0, f); | |
529 | s--; | |
530 | fputc(0, f); | |
531 | s--; | |
532 | fputc(0, f); | |
533 | s--; | |
534 | } | |
535 | fputc(0, f); | |
536 | s--; | |
537 | fputc(2, f); | |
538 | while (s-- > (MCD_SIZE + 1)) | |
539 | fputc(0, f); | |
540 | } | |
541 | } | |
542 | fputc('M', f); | |
543 | s--; | |
544 | fputc('C', f); | |
545 | s--; | |
546 | while (s-- > (MCD_SIZE - 127)) | |
547 | fputc(0, f); | |
548 | fputc(0xe, f); | |
549 | s--; | |
550 | ||
551 | for (i = 0; i < 15; i++) { // 15 blocks | |
552 | fputc(0xa0, f); | |
553 | s--; | |
554 | fputc(0x00, f); | |
555 | s--; | |
556 | fputc(0x00, f); | |
557 | s--; | |
558 | fputc(0x00, f); | |
559 | s--; | |
560 | fputc(0x00, f); | |
561 | s--; | |
562 | fputc(0x00, f); | |
563 | s--; | |
564 | fputc(0x00, f); | |
565 | s--; | |
566 | fputc(0x00, f); | |
567 | s--; | |
568 | fputc(0xff, f); | |
569 | s--; | |
570 | fputc(0xff, f); | |
571 | s--; | |
572 | for (j = 0; j < 117; j++) { | |
573 | fputc(0x00, f); | |
574 | s--; | |
575 | } | |
576 | fputc(0xa0, f); | |
577 | s--; | |
578 | } | |
579 | ||
580 | for (i = 0; i < 20; i++) { | |
581 | fputc(0xff, f); | |
582 | s--; | |
583 | fputc(0xff, f); | |
584 | s--; | |
585 | fputc(0xff, f); | |
586 | s--; | |
587 | fputc(0xff, f); | |
588 | s--; | |
589 | fputc(0x00, f); | |
590 | s--; | |
591 | fputc(0x00, f); | |
592 | s--; | |
593 | fputc(0x00, f); | |
594 | s--; | |
595 | fputc(0x00, f); | |
596 | s--; | |
597 | fputc(0xff, f); | |
598 | s--; | |
599 | fputc(0xff, f); | |
600 | s--; | |
601 | for (j = 0; j < 118; j++) { | |
602 | fputc(0x00, f); | |
603 | s--; | |
604 | } | |
605 | } | |
606 | ||
607 | while ((s--) >= 0) | |
608 | fputc(0, f); | |
609 | ||
610 | fclose(f); | |
611 | } | |
612 | ||
613 | void ConvertMcd(char *mcd, char *data) { | |
614 | FILE *f; | |
615 | int i = 0; | |
616 | int s = MCD_SIZE; | |
617 | ||
618 | if (strstr(mcd, ".gme")) { | |
619 | f = fopen(mcd, "wb"); | |
620 | if (f != NULL) { | |
621 | fwrite(data - 3904, 1, MCD_SIZE + 3904, f); | |
622 | fclose(f); | |
623 | } | |
624 | f = fopen(mcd, "r+"); | |
cfa5a2af | 625 | if (f == NULL) return; |
ef79bbde P |
626 | s = s + 3904; |
627 | fputc('1', f); s--; | |
628 | fputc('2', f); s--; | |
629 | fputc('3', f); s--; | |
630 | fputc('-', f); s--; | |
631 | fputc('4', f); s--; | |
632 | fputc('5', f); s--; | |
633 | fputc('6', f); s--; | |
634 | fputc('-', f); s--; | |
635 | fputc('S', f); s--; | |
636 | fputc('T', f); s--; | |
637 | fputc('D', f); s--; | |
638 | for (i = 0; i < 7; i++) { | |
639 | fputc(0, f); s--; | |
640 | } | |
641 | fputc(1, f); s--; | |
642 | fputc(0, f); s--; | |
643 | fputc(1, f); s--; | |
644 | fputc('M', f); s--; | |
645 | fputc('Q', f); s--; | |
646 | for(i=0;i<14;i++) { | |
647 | fputc(0xa0, f); s--; | |
648 | } | |
649 | fputc(0, f); s--; | |
650 | fputc(0xff, f); | |
651 | while (s-- > (MCD_SIZE+1)) fputc(0, f); | |
652 | fclose(f); | |
653 | } else if(strstr(mcd, ".mem") || strstr(mcd,".vgs")) { | |
654 | f = fopen(mcd, "wb"); | |
655 | if (f != NULL) { | |
656 | fwrite(data-64, 1, MCD_SIZE+64, f); | |
657 | fclose(f); | |
658 | } | |
659 | f = fopen(mcd, "r+"); | |
cfa5a2af | 660 | if (f == NULL) return; |
ef79bbde P |
661 | s = s + 64; |
662 | fputc('V', f); s--; | |
663 | fputc('g', f); s--; | |
664 | fputc('s', f); s--; | |
665 | fputc('M', f); s--; | |
666 | for(i=0;i<3;i++) { | |
667 | fputc(1, f); s--; | |
668 | fputc(0, f); s--; | |
669 | fputc(0, f); s--; | |
670 | fputc(0, f); s--; | |
671 | } | |
672 | fputc(0, f); s--; | |
673 | fputc(2, f); | |
674 | while (s-- > (MCD_SIZE+1)) fputc(0, f); | |
675 | fclose(f); | |
676 | } else { | |
677 | f = fopen(mcd, "wb"); | |
678 | if (f != NULL) { | |
679 | fwrite(data, 1, MCD_SIZE, f); | |
680 | fclose(f); | |
681 | } | |
682 | } | |
683 | } | |
684 | ||
685 | void GetMcdBlockInfo(int mcd, int block, McdBlock *Info) { | |
ab948f7e | 686 | char *data = NULL, *ptr, *str, *sstr; |
ef79bbde P |
687 | unsigned short clut[16]; |
688 | unsigned short c; | |
689 | int i, x; | |
690 | ||
691 | memset(Info, 0, sizeof(McdBlock)); | |
692 | ||
f3a77032 | 693 | if (mcd != 1 && mcd != 2) |
694 | return; | |
695 | ||
696 | if (McdDisable[mcd - 1]) | |
697 | return; | |
698 | ||
ef79bbde P |
699 | if (mcd == 1) data = Mcd1Data; |
700 | if (mcd == 2) data = Mcd2Data; | |
701 | ||
702 | ptr = data + block * 8192 + 2; | |
703 | ||
704 | Info->IconCount = *ptr & 0x3; | |
705 | ||
706 | ptr += 2; | |
707 | ||
708 | x = 0; | |
709 | ||
710 | str = Info->Title; | |
711 | sstr = Info->sTitle; | |
712 | ||
713 | for (i = 0; i < 48; i++) { | |
714 | c = *(ptr) << 8; | |
715 | c |= *(ptr + 1); | |
716 | if (!c) break; | |
717 | ||
718 | // Convert ASCII characters to half-width | |
719 | if (c >= 0x8281 && c <= 0x829A) | |
720 | c = (c - 0x8281) + 'a'; | |
721 | else if (c >= 0x824F && c <= 0x827A) | |
722 | c = (c - 0x824F) + '0'; | |
723 | else if (c == 0x8140) c = ' '; | |
724 | else if (c == 0x8143) c = ','; | |
725 | else if (c == 0x8144) c = '.'; | |
726 | else if (c == 0x8146) c = ':'; | |
727 | else if (c == 0x8147) c = ';'; | |
728 | else if (c == 0x8148) c = '?'; | |
729 | else if (c == 0x8149) c = '!'; | |
730 | else if (c == 0x815E) c = '/'; | |
731 | else if (c == 0x8168) c = '"'; | |
732 | else if (c == 0x8169) c = '('; | |
733 | else if (c == 0x816A) c = ')'; | |
734 | else if (c == 0x816D) c = '['; | |
735 | else if (c == 0x816E) c = ']'; | |
736 | else if (c == 0x817C) c = '-'; | |
737 | else { | |
738 | str[i] = ' '; | |
739 | sstr[x++] = *ptr++; sstr[x++] = *ptr++; | |
740 | continue; | |
741 | } | |
742 | ||
743 | str[i] = sstr[x++] = c; | |
744 | ptr += 2; | |
745 | } | |
746 | ||
747 | trim(str); | |
748 | trim(sstr); | |
749 | ||
750 | ptr = data + block * 8192 + 0x60; // icon palette data | |
751 | ||
752 | for (i = 0; i < 16; i++) { | |
753 | clut[i] = *((unsigned short *)ptr); | |
754 | ptr += 2; | |
755 | } | |
756 | ||
757 | for (i = 0; i < Info->IconCount; i++) { | |
758 | short *icon = &Info->Icon[i * 16 * 16]; | |
759 | ||
760 | ptr = data + block * 8192 + 128 + 128 * i; // icon data | |
761 | ||
762 | for (x = 0; x < 16 * 16; x++) { | |
763 | icon[x++] = clut[*ptr & 0xf]; | |
764 | icon[x] = clut[*ptr >> 4]; | |
765 | ptr++; | |
766 | } | |
767 | } | |
768 | ||
769 | ptr = data + block * 128; | |
770 | ||
771 | Info->Flags = *ptr; | |
772 | ||
773 | ptr += 0xa; | |
774 | strncpy(Info->ID, ptr, 12); | |
775 | ptr += 12; | |
776 | strncpy(Info->Name, ptr, 16); | |
777 | } | |
778 | ||
496d88d4 | 779 | int sioFreeze(void *f, int Mode) { |
ef79bbde P |
780 | gzfreeze(buf, sizeof(buf)); |
781 | gzfreeze(&StatReg, sizeof(StatReg)); | |
782 | gzfreeze(&ModeReg, sizeof(ModeReg)); | |
783 | gzfreeze(&CtrlReg, sizeof(CtrlReg)); | |
784 | gzfreeze(&BaudReg, sizeof(BaudReg)); | |
785 | gzfreeze(&bufcount, sizeof(bufcount)); | |
786 | gzfreeze(&parp, sizeof(parp)); | |
787 | gzfreeze(&mcdst, sizeof(mcdst)); | |
788 | gzfreeze(&rdwr, sizeof(rdwr)); | |
789 | gzfreeze(&adrH, sizeof(adrH)); | |
790 | gzfreeze(&adrL, sizeof(adrL)); | |
791 | gzfreeze(&padst, sizeof(padst)); | |
792 | ||
793 | return 0; | |
794 | } |