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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" | |
9a0a61d2 | 26 | #include "psxevents.h" |
ef79bbde P |
27 | #include "sio.h" |
28 | #include <sys/stat.h> | |
29 | ||
7a8d521f | 30 | #ifdef USE_LIBRETRO_VFS |
31 | #include <streams/file_stream_transforms.h> | |
32 | #endif | |
33 | ||
ef79bbde P |
34 | // Status Flags |
35 | #define TX_RDY 0x0001 | |
36 | #define RX_RDY 0x0002 | |
37 | #define TX_EMPTY 0x0004 | |
38 | #define PARITY_ERR 0x0008 | |
39 | #define RX_OVERRUN 0x0010 | |
40 | #define FRAMING_ERR 0x0020 | |
41 | #define SYNC_DETECT 0x0040 | |
42 | #define DSR 0x0080 | |
43 | #define CTS 0x0100 | |
44 | #define IRQ 0x0200 | |
45 | ||
46 | // Control Flags | |
47 | #define TX_PERM 0x0001 | |
48 | #define DTR 0x0002 | |
49 | #define RX_PERM 0x0004 | |
50 | #define BREAK 0x0008 | |
51 | #define RESET_ERR 0x0010 | |
52 | #define RTS 0x0020 | |
53 | #define SIO_RESET 0x0040 | |
54 | ||
55 | // *** FOR WORKS ON PADS AND MEMORY CARDS ***** | |
56 | ||
57 | static unsigned char buf[256]; | |
f3a77032 | 58 | static unsigned char cardh1[4] = { 0xff, 0x08, 0x5a, 0x5d }; |
59 | static unsigned char cardh2[4] = { 0xff, 0x08, 0x5a, 0x5d }; | |
ef79bbde P |
60 | |
61 | // Transfer Ready and the Buffer is Empty | |
62 | // static unsigned short StatReg = 0x002b; | |
63 | static unsigned short StatReg = TX_RDY | TX_EMPTY; | |
64 | static unsigned short ModeReg; | |
65 | static unsigned short CtrlReg; | |
66 | static unsigned short BaudReg; | |
67 | ||
68 | static unsigned int bufcount; | |
69 | static unsigned int parp; | |
70 | static unsigned int mcdst, rdwr; | |
71 | static unsigned char adrH, adrL; | |
72 | static unsigned int padst; | |
73 | ||
74 | char Mcd1Data[MCD_SIZE], Mcd2Data[MCD_SIZE]; | |
f3a77032 | 75 | char McdDisable[2]; |
ef79bbde P |
76 | |
77 | // clk cycle byte | |
78 | // 4us * 8bits = (PSXCLK / 1000000) * 32; (linuzappz) | |
79 | // TODO: add SioModePrescaler and BaudReg | |
d28b54b1 | 80 | #define SIO_CYCLES 535 |
ef79bbde P |
81 | |
82 | void sioWrite8(unsigned char value) { | |
2db412ad | 83 | int more_data = 0; |
84 | #if 0 | |
85 | s32 framec = psxRegs.cycle - rcnts[3].cycleStart; | |
86 | printf("%d:%03d sio write8 %04x %02x\n", frame_counter, | |
87 | (s32)(framec / (PSXCLK / 60 / 263.0f)), CtrlReg, value); | |
ef79bbde P |
88 | #endif |
89 | switch (padst) { | |
2db412ad | 90 | case 1: |
ef79bbde P |
91 | if ((value & 0x40) == 0x40) { |
92 | padst = 2; parp = 1; | |
2db412ad | 93 | switch (CtrlReg & 0x2002) { |
94 | case 0x0002: | |
95 | buf[parp] = PAD1_poll(value, &more_data); | |
96 | break; | |
97 | case 0x2002: | |
98 | buf[parp] = PAD2_poll(value, &more_data); | |
99 | break; | |
ef79bbde | 100 | } |
2db412ad | 101 | |
102 | if (more_data) { | |
103 | bufcount = parp + 1; | |
9a0a61d2 | 104 | set_event(PSXINT_SIO, SIO_CYCLES); |
ef79bbde P |
105 | } |
106 | } | |
107 | else padst = 0; | |
108 | return; | |
109 | case 2: | |
110 | parp++; | |
2db412ad | 111 | switch (CtrlReg & 0x2002) { |
112 | case 0x0002: buf[parp] = PAD1_poll(value, &more_data); break; | |
113 | case 0x2002: buf[parp] = PAD2_poll(value, &more_data); break; | |
ef79bbde P |
114 | } |
115 | ||
2db412ad | 116 | if (more_data) { |
117 | bufcount = parp + 1; | |
9a0a61d2 | 118 | set_event(PSXINT_SIO, SIO_CYCLES); |
2db412ad | 119 | } |
ef79bbde P |
120 | return; |
121 | } | |
122 | ||
123 | switch (mcdst) { | |
124 | case 1: | |
9a0a61d2 | 125 | set_event(PSXINT_SIO, SIO_CYCLES); |
ef79bbde P |
126 | if (rdwr) { parp++; return; } |
127 | parp = 1; | |
128 | switch (value) { | |
129 | case 0x52: rdwr = 1; break; | |
130 | case 0x57: rdwr = 2; break; | |
131 | default: mcdst = 0; | |
132 | } | |
133 | return; | |
134 | case 2: // address H | |
9a0a61d2 | 135 | set_event(PSXINT_SIO, SIO_CYCLES); |
ef79bbde P |
136 | adrH = value; |
137 | *buf = 0; | |
138 | parp = 0; | |
139 | bufcount = 1; | |
140 | mcdst = 3; | |
141 | return; | |
142 | case 3: // address L | |
9a0a61d2 | 143 | set_event(PSXINT_SIO, SIO_CYCLES); |
ef79bbde P |
144 | adrL = value; |
145 | *buf = adrH; | |
146 | parp = 0; | |
147 | bufcount = 1; | |
148 | mcdst = 4; | |
149 | return; | |
150 | case 4: | |
9a0a61d2 | 151 | set_event(PSXINT_SIO, SIO_CYCLES); |
ef79bbde P |
152 | parp = 0; |
153 | switch (rdwr) { | |
154 | case 1: // read | |
155 | buf[0] = 0x5c; | |
156 | buf[1] = 0x5d; | |
157 | buf[2] = adrH; | |
158 | buf[3] = adrL; | |
159 | switch (CtrlReg & 0x2002) { | |
160 | case 0x0002: | |
161 | memcpy(&buf[4], Mcd1Data + (adrL | (adrH << 8)) * 128, 128); | |
162 | break; | |
163 | case 0x2002: | |
164 | memcpy(&buf[4], Mcd2Data + (adrL | (adrH << 8)) * 128, 128); | |
165 | break; | |
166 | } | |
167 | { | |
168 | char xor = 0; | |
169 | int i; | |
170 | for (i = 2; i < 128 + 4; i++) | |
171 | xor ^= buf[i]; | |
172 | buf[132] = xor; | |
173 | } | |
174 | buf[133] = 0x47; | |
175 | bufcount = 133; | |
176 | break; | |
177 | case 2: // write | |
178 | buf[0] = adrL; | |
179 | buf[1] = value; | |
180 | buf[129] = 0x5c; | |
181 | buf[130] = 0x5d; | |
182 | buf[131] = 0x47; | |
183 | bufcount = 131; | |
184 | break; | |
185 | } | |
186 | mcdst = 5; | |
187 | return; | |
188 | case 5: | |
189 | parp++; | |
f3a77032 | 190 | if ((rdwr == 1 && parp == 132) || |
191 | (rdwr == 2 && parp == 129)) { | |
192 | // clear "new card" flags | |
193 | if (CtrlReg & 0x2000) | |
194 | cardh2[1] &= ~8; | |
195 | else | |
196 | cardh1[1] &= ~8; | |
197 | } | |
ef79bbde P |
198 | if (rdwr == 2) { |
199 | if (parp < 128) buf[parp + 1] = value; | |
200 | } | |
9a0a61d2 | 201 | set_event(PSXINT_SIO, SIO_CYCLES); |
ef79bbde P |
202 | return; |
203 | } | |
204 | ||
205 | switch (value) { | |
206 | case 0x01: // start pad | |
207 | StatReg |= RX_RDY; // Transfer is Ready | |
208 | ||
2db412ad | 209 | switch (CtrlReg & 0x2002) { |
210 | case 0x0002: buf[0] = PAD1_startPoll(1); break; | |
211 | case 0x2002: buf[0] = PAD2_startPoll(2); break; | |
ef79bbde | 212 | } |
2db412ad | 213 | bufcount = 1; |
ef79bbde P |
214 | parp = 0; |
215 | padst = 1; | |
9a0a61d2 | 216 | set_event(PSXINT_SIO, SIO_CYCLES); |
ef79bbde P |
217 | return; |
218 | case 0x81: // start memcard | |
f3a77032 | 219 | if (CtrlReg & 0x2000) |
220 | { | |
221 | if (McdDisable[1]) | |
222 | goto no_device; | |
223 | memcpy(buf, cardh2, 4); | |
224 | } | |
225 | else | |
226 | { | |
227 | if (McdDisable[0]) | |
228 | goto no_device; | |
229 | memcpy(buf, cardh1, 4); | |
230 | } | |
ef79bbde | 231 | StatReg |= RX_RDY; |
ef79bbde P |
232 | parp = 0; |
233 | bufcount = 3; | |
234 | mcdst = 1; | |
235 | rdwr = 0; | |
9a0a61d2 | 236 | set_event(PSXINT_SIO, SIO_CYCLES); |
ef79bbde | 237 | return; |
f3a77032 | 238 | default: |
239 | no_device: | |
240 | StatReg |= RX_RDY; | |
241 | buf[0] = 0xff; | |
242 | parp = 0; | |
243 | bufcount = 0; | |
244 | return; | |
ef79bbde P |
245 | } |
246 | } | |
247 | ||
248 | void sioWriteStat16(unsigned short value) { | |
249 | } | |
250 | ||
251 | void sioWriteMode16(unsigned short value) { | |
252 | ModeReg = value; | |
253 | } | |
254 | ||
255 | void sioWriteCtrl16(unsigned short value) { | |
256 | CtrlReg = value & ~RESET_ERR; | |
257 | if (value & RESET_ERR) StatReg &= ~IRQ; | |
7d95d6fa | 258 | if ((CtrlReg & SIO_RESET) || !(CtrlReg & DTR)) { |
ef79bbde P |
259 | padst = 0; mcdst = 0; parp = 0; |
260 | StatReg = TX_RDY | TX_EMPTY; | |
d28b54b1 | 261 | psxRegs.interrupt &= ~(1 << PSXINT_SIO); |
ef79bbde P |
262 | } |
263 | } | |
264 | ||
265 | void sioWriteBaud16(unsigned short value) { | |
266 | BaudReg = value; | |
267 | } | |
268 | ||
269 | unsigned char sioRead8() { | |
270 | unsigned char ret = 0; | |
271 | ||
272 | if ((StatReg & RX_RDY)/* && (CtrlReg & RX_PERM)*/) { | |
273 | // StatReg &= ~RX_OVERRUN; | |
274 | ret = buf[parp]; | |
275 | if (parp == bufcount) { | |
276 | StatReg &= ~RX_RDY; // Receive is not Ready now | |
277 | if (mcdst == 5) { | |
278 | mcdst = 0; | |
279 | if (rdwr == 2) { | |
280 | switch (CtrlReg & 0x2002) { | |
281 | case 0x0002: | |
282 | memcpy(Mcd1Data + (adrL | (adrH << 8)) * 128, &buf[1], 128); | |
283 | SaveMcd(Config.Mcd1, Mcd1Data, (adrL | (adrH << 8)) * 128, 128); | |
284 | break; | |
285 | case 0x2002: | |
286 | memcpy(Mcd2Data + (adrL | (adrH << 8)) * 128, &buf[1], 128); | |
287 | SaveMcd(Config.Mcd2, Mcd2Data, (adrL | (adrH << 8)) * 128, 128); | |
288 | break; | |
289 | } | |
290 | } | |
291 | } | |
292 | if (padst == 2) padst = 0; | |
293 | if (mcdst == 1) { | |
294 | mcdst = 2; | |
295 | StatReg|= RX_RDY; | |
296 | } | |
297 | } | |
298 | } | |
299 | ||
2db412ad | 300 | #if 0 |
301 | s32 framec = psxRegs.cycle - rcnts[3].cycleStart; | |
302 | printf("%d:%03d sio read8 %04x %02x\n", frame_counter, | |
303 | (s32)((float)framec / (PSXCLK / 60 / 263.0f)), CtrlReg, ret); | |
ef79bbde P |
304 | #endif |
305 | return ret; | |
306 | } | |
307 | ||
308 | unsigned short sioReadStat16() { | |
309 | return StatReg; | |
310 | } | |
311 | ||
312 | unsigned short sioReadMode16() { | |
313 | return ModeReg; | |
314 | } | |
315 | ||
316 | unsigned short sioReadCtrl16() { | |
317 | return CtrlReg; | |
318 | } | |
319 | ||
320 | unsigned short sioReadBaud16() { | |
321 | return BaudReg; | |
322 | } | |
323 | ||
ef79bbde P |
324 | void sioInterrupt() { |
325 | #ifdef PAD_LOG | |
326 | PAD_LOG("Sio Interrupt (CP0.Status = %x)\n", psxRegs.CP0.n.Status); | |
327 | #endif | |
328 | // SysPrintf("Sio Interrupt\n"); | |
aa35134a | 329 | if (!(StatReg & IRQ)) { |
330 | StatReg |= IRQ; | |
331 | psxHu32ref(0x1070) |= SWAPu32(0x80); | |
332 | } | |
ef79bbde P |
333 | } |
334 | ||
335 | void LoadMcd(int mcd, char *str) { | |
336 | FILE *f; | |
337 | char *data = NULL; | |
338 | ||
f3a77032 | 339 | if (mcd != 1 && mcd != 2) |
340 | return; | |
ef79bbde | 341 | |
f3a77032 | 342 | if (mcd == 1) { |
343 | data = Mcd1Data; | |
344 | cardh1[1] |= 8; // mark as new | |
345 | } | |
346 | if (mcd == 2) { | |
347 | data = Mcd2Data; | |
348 | cardh2[1] |= 8; | |
349 | } | |
350 | ||
351 | McdDisable[mcd - 1] = 0; | |
7a8d521f | 352 | #ifdef HAVE_LIBRETRO |
353 | // memcard1 is handled by libretro | |
354 | if (mcd == 1) | |
355 | return; | |
356 | #endif | |
357 | ||
6f18d16a | 358 | if (str == NULL || strcmp(str, "none") == 0) { |
f3a77032 | 359 | McdDisable[mcd - 1] = 1; |
360 | return; | |
ef79bbde | 361 | } |
6f18d16a | 362 | if (*str == 0) |
363 | return; | |
364 | ||
ef79bbde P |
365 | f = fopen(str, "rb"); |
366 | if (f == NULL) { | |
367 | SysPrintf(_("The memory card %s doesn't exist - creating it\n"), str); | |
368 | CreateMcd(str); | |
369 | f = fopen(str, "rb"); | |
370 | if (f != NULL) { | |
371 | struct stat buf; | |
372 | ||
373 | if (stat(str, &buf) != -1) { | |
374 | if (buf.st_size == MCD_SIZE + 64) | |
375 | fseek(f, 64, SEEK_SET); | |
376 | else if(buf.st_size == MCD_SIZE + 3904) | |
377 | fseek(f, 3904, SEEK_SET); | |
378 | } | |
7a8d521f | 379 | if (fread(data, 1, MCD_SIZE, f) != MCD_SIZE) { |
380 | #ifndef NDEBUG | |
381 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
382 | #endif | |
383 | memset(data, 0x00, MCD_SIZE); | |
384 | } | |
ef79bbde P |
385 | fclose(f); |
386 | } | |
387 | else | |
388 | SysMessage(_("Memory card %s failed to load!\n"), str); | |
389 | } | |
390 | else { | |
391 | struct stat buf; | |
392 | SysPrintf(_("Loading memory card %s\n"), str); | |
393 | if (stat(str, &buf) != -1) { | |
394 | if (buf.st_size == MCD_SIZE + 64) | |
395 | fseek(f, 64, SEEK_SET); | |
396 | else if(buf.st_size == MCD_SIZE + 3904) | |
397 | fseek(f, 3904, SEEK_SET); | |
398 | } | |
7a8d521f | 399 | if (fread(data, 1, MCD_SIZE, f) != MCD_SIZE) { |
400 | #ifndef NDEBUG | |
401 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
402 | #endif | |
403 | memset(data, 0x00, MCD_SIZE); | |
404 | } | |
ef79bbde P |
405 | fclose(f); |
406 | } | |
407 | } | |
408 | ||
409 | void LoadMcds(char *mcd1, char *mcd2) { | |
410 | LoadMcd(1, mcd1); | |
411 | LoadMcd(2, mcd2); | |
412 | } | |
413 | ||
414 | void SaveMcd(char *mcd, char *data, uint32_t adr, int size) { | |
415 | FILE *f; | |
416 | ||
6f18d16a | 417 | if (mcd == NULL || *mcd == 0 || strcmp(mcd, "none") == 0) |
418 | return; | |
419 | ||
ef79bbde P |
420 | f = fopen(mcd, "r+b"); |
421 | if (f != NULL) { | |
422 | struct stat buf; | |
423 | ||
424 | if (stat(mcd, &buf) != -1) { | |
425 | if (buf.st_size == MCD_SIZE + 64) | |
426 | fseek(f, adr + 64, SEEK_SET); | |
427 | else if (buf.st_size == MCD_SIZE + 3904) | |
428 | fseek(f, adr + 3904, SEEK_SET); | |
429 | else | |
430 | fseek(f, adr, SEEK_SET); | |
431 | } else | |
432 | fseek(f, adr, SEEK_SET); | |
433 | ||
434 | fwrite(data + adr, 1, size, f); | |
435 | fclose(f); | |
436 | return; | |
437 | } | |
438 | ||
439 | #if 0 | |
440 | // try to create it again if we can't open it | |
441 | f = fopen(mcd, "wb"); | |
442 | if (f != NULL) { | |
443 | fwrite(data, 1, MCD_SIZE, f); | |
444 | fclose(f); | |
445 | } | |
446 | #endif | |
447 | ||
448 | ConvertMcd(mcd, data); | |
449 | } | |
450 | ||
451 | void CreateMcd(char *mcd) { | |
452 | FILE *f; | |
453 | struct stat buf; | |
454 | int s = MCD_SIZE; | |
455 | int i = 0, j; | |
456 | ||
457 | f = fopen(mcd, "wb"); | |
458 | if (f == NULL) | |
459 | return; | |
460 | ||
461 | if (stat(mcd, &buf) != -1) { | |
462 | if ((buf.st_size == MCD_SIZE + 3904) || strstr(mcd, ".gme")) { | |
463 | s = s + 3904; | |
464 | fputc('1', f); | |
465 | s--; | |
466 | fputc('2', f); | |
467 | s--; | |
468 | fputc('3', f); | |
469 | s--; | |
470 | fputc('-', f); | |
471 | s--; | |
472 | fputc('4', f); | |
473 | s--; | |
474 | fputc('5', f); | |
475 | s--; | |
476 | fputc('6', f); | |
477 | s--; | |
478 | fputc('-', f); | |
479 | s--; | |
480 | fputc('S', f); | |
481 | s--; | |
482 | fputc('T', f); | |
483 | s--; | |
484 | fputc('D', f); | |
485 | s--; | |
486 | for (i = 0; i < 7; i++) { | |
487 | fputc(0, f); | |
488 | s--; | |
489 | } | |
490 | fputc(1, f); | |
491 | s--; | |
492 | fputc(0, f); | |
493 | s--; | |
494 | fputc(1, f); | |
495 | s--; | |
496 | fputc('M', f); | |
497 | s--; | |
498 | fputc('Q', f); | |
499 | s--; | |
500 | for (i = 0; i < 14; i++) { | |
501 | fputc(0xa0, f); | |
502 | s--; | |
503 | } | |
504 | fputc(0, f); | |
505 | s--; | |
506 | fputc(0xff, f); | |
507 | while (s-- > (MCD_SIZE + 1)) | |
508 | fputc(0, f); | |
509 | } else if ((buf.st_size == MCD_SIZE + 64) || strstr(mcd, ".mem") || strstr(mcd, ".vgs")) { | |
510 | s = s + 64; | |
511 | fputc('V', f); | |
512 | s--; | |
513 | fputc('g', f); | |
514 | s--; | |
515 | fputc('s', f); | |
516 | s--; | |
517 | fputc('M', f); | |
518 | s--; | |
519 | for (i = 0; i < 3; i++) { | |
520 | fputc(1, f); | |
521 | s--; | |
522 | fputc(0, f); | |
523 | s--; | |
524 | fputc(0, f); | |
525 | s--; | |
526 | fputc(0, f); | |
527 | s--; | |
528 | } | |
529 | fputc(0, f); | |
530 | s--; | |
531 | fputc(2, f); | |
532 | while (s-- > (MCD_SIZE + 1)) | |
533 | fputc(0, f); | |
534 | } | |
535 | } | |
536 | fputc('M', f); | |
537 | s--; | |
538 | fputc('C', f); | |
539 | s--; | |
540 | while (s-- > (MCD_SIZE - 127)) | |
541 | fputc(0, f); | |
542 | fputc(0xe, f); | |
543 | s--; | |
544 | ||
545 | for (i = 0; i < 15; i++) { // 15 blocks | |
546 | fputc(0xa0, f); | |
547 | s--; | |
548 | fputc(0x00, f); | |
549 | s--; | |
550 | fputc(0x00, f); | |
551 | s--; | |
552 | fputc(0x00, 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(0xff, f); | |
563 | s--; | |
564 | fputc(0xff, f); | |
565 | s--; | |
566 | for (j = 0; j < 117; j++) { | |
567 | fputc(0x00, f); | |
568 | s--; | |
569 | } | |
570 | fputc(0xa0, f); | |
571 | s--; | |
572 | } | |
573 | ||
574 | for (i = 0; i < 20; i++) { | |
575 | fputc(0xff, f); | |
576 | s--; | |
577 | fputc(0xff, f); | |
578 | s--; | |
579 | fputc(0xff, f); | |
580 | s--; | |
581 | fputc(0xff, f); | |
582 | s--; | |
583 | fputc(0x00, f); | |
584 | s--; | |
585 | fputc(0x00, f); | |
586 | s--; | |
587 | fputc(0x00, f); | |
588 | s--; | |
589 | fputc(0x00, f); | |
590 | s--; | |
591 | fputc(0xff, f); | |
592 | s--; | |
593 | fputc(0xff, f); | |
594 | s--; | |
595 | for (j = 0; j < 118; j++) { | |
596 | fputc(0x00, f); | |
597 | s--; | |
598 | } | |
599 | } | |
600 | ||
601 | while ((s--) >= 0) | |
602 | fputc(0, f); | |
603 | ||
604 | fclose(f); | |
605 | } | |
606 | ||
607 | void ConvertMcd(char *mcd, char *data) { | |
608 | FILE *f; | |
609 | int i = 0; | |
610 | int s = MCD_SIZE; | |
611 | ||
612 | if (strstr(mcd, ".gme")) { | |
613 | f = fopen(mcd, "wb"); | |
614 | if (f != NULL) { | |
615 | fwrite(data - 3904, 1, MCD_SIZE + 3904, f); | |
616 | fclose(f); | |
617 | } | |
618 | f = fopen(mcd, "r+"); | |
cfa5a2af | 619 | if (f == NULL) return; |
ef79bbde P |
620 | s = s + 3904; |
621 | fputc('1', f); s--; | |
622 | fputc('2', f); s--; | |
623 | fputc('3', f); s--; | |
624 | fputc('-', f); s--; | |
625 | fputc('4', f); s--; | |
626 | fputc('5', f); s--; | |
627 | fputc('6', f); s--; | |
628 | fputc('-', f); s--; | |
629 | fputc('S', f); s--; | |
630 | fputc('T', f); s--; | |
631 | fputc('D', f); s--; | |
632 | for (i = 0; i < 7; i++) { | |
633 | fputc(0, f); s--; | |
634 | } | |
635 | fputc(1, f); s--; | |
636 | fputc(0, f); s--; | |
637 | fputc(1, f); s--; | |
638 | fputc('M', f); s--; | |
639 | fputc('Q', f); s--; | |
640 | for(i=0;i<14;i++) { | |
641 | fputc(0xa0, f); s--; | |
642 | } | |
643 | fputc(0, f); s--; | |
644 | fputc(0xff, f); | |
645 | while (s-- > (MCD_SIZE+1)) fputc(0, f); | |
646 | fclose(f); | |
647 | } else if(strstr(mcd, ".mem") || strstr(mcd,".vgs")) { | |
648 | f = fopen(mcd, "wb"); | |
649 | if (f != NULL) { | |
650 | fwrite(data-64, 1, MCD_SIZE+64, f); | |
651 | fclose(f); | |
652 | } | |
653 | f = fopen(mcd, "r+"); | |
cfa5a2af | 654 | if (f == NULL) return; |
ef79bbde P |
655 | s = s + 64; |
656 | fputc('V', f); s--; | |
657 | fputc('g', f); s--; | |
658 | fputc('s', f); s--; | |
659 | fputc('M', f); s--; | |
660 | for(i=0;i<3;i++) { | |
661 | fputc(1, f); s--; | |
662 | fputc(0, f); s--; | |
663 | fputc(0, f); s--; | |
664 | fputc(0, f); s--; | |
665 | } | |
666 | fputc(0, f); s--; | |
667 | fputc(2, f); | |
668 | while (s-- > (MCD_SIZE+1)) fputc(0, f); | |
669 | fclose(f); | |
670 | } else { | |
671 | f = fopen(mcd, "wb"); | |
672 | if (f != NULL) { | |
673 | fwrite(data, 1, MCD_SIZE, f); | |
674 | fclose(f); | |
675 | } | |
676 | } | |
677 | } | |
678 | ||
679 | void GetMcdBlockInfo(int mcd, int block, McdBlock *Info) { | |
ab948f7e | 680 | char *data = NULL, *ptr, *str, *sstr; |
ef79bbde P |
681 | unsigned short clut[16]; |
682 | unsigned short c; | |
683 | int i, x; | |
684 | ||
685 | memset(Info, 0, sizeof(McdBlock)); | |
686 | ||
f3a77032 | 687 | if (mcd != 1 && mcd != 2) |
688 | return; | |
689 | ||
690 | if (McdDisable[mcd - 1]) | |
691 | return; | |
692 | ||
ef79bbde P |
693 | if (mcd == 1) data = Mcd1Data; |
694 | if (mcd == 2) data = Mcd2Data; | |
695 | ||
696 | ptr = data + block * 8192 + 2; | |
697 | ||
698 | Info->IconCount = *ptr & 0x3; | |
699 | ||
700 | ptr += 2; | |
701 | ||
702 | x = 0; | |
703 | ||
704 | str = Info->Title; | |
705 | sstr = Info->sTitle; | |
706 | ||
707 | for (i = 0; i < 48; i++) { | |
708 | c = *(ptr) << 8; | |
709 | c |= *(ptr + 1); | |
710 | if (!c) break; | |
711 | ||
712 | // Convert ASCII characters to half-width | |
713 | if (c >= 0x8281 && c <= 0x829A) | |
714 | c = (c - 0x8281) + 'a'; | |
715 | else if (c >= 0x824F && c <= 0x827A) | |
716 | c = (c - 0x824F) + '0'; | |
717 | else if (c == 0x8140) c = ' '; | |
718 | else if (c == 0x8143) c = ','; | |
719 | else if (c == 0x8144) c = '.'; | |
720 | else if (c == 0x8146) c = ':'; | |
721 | else if (c == 0x8147) c = ';'; | |
722 | else if (c == 0x8148) c = '?'; | |
723 | else if (c == 0x8149) c = '!'; | |
724 | else if (c == 0x815E) c = '/'; | |
725 | else if (c == 0x8168) c = '"'; | |
726 | else if (c == 0x8169) c = '('; | |
727 | else if (c == 0x816A) c = ')'; | |
728 | else if (c == 0x816D) c = '['; | |
729 | else if (c == 0x816E) c = ']'; | |
730 | else if (c == 0x817C) c = '-'; | |
731 | else { | |
732 | str[i] = ' '; | |
733 | sstr[x++] = *ptr++; sstr[x++] = *ptr++; | |
734 | continue; | |
735 | } | |
736 | ||
737 | str[i] = sstr[x++] = c; | |
738 | ptr += 2; | |
739 | } | |
740 | ||
741 | trim(str); | |
742 | trim(sstr); | |
743 | ||
744 | ptr = data + block * 8192 + 0x60; // icon palette data | |
745 | ||
746 | for (i = 0; i < 16; i++) { | |
747 | clut[i] = *((unsigned short *)ptr); | |
748 | ptr += 2; | |
749 | } | |
750 | ||
751 | for (i = 0; i < Info->IconCount; i++) { | |
752 | short *icon = &Info->Icon[i * 16 * 16]; | |
753 | ||
754 | ptr = data + block * 8192 + 128 + 128 * i; // icon data | |
755 | ||
756 | for (x = 0; x < 16 * 16; x++) { | |
757 | icon[x++] = clut[*ptr & 0xf]; | |
758 | icon[x] = clut[*ptr >> 4]; | |
759 | ptr++; | |
760 | } | |
761 | } | |
762 | ||
763 | ptr = data + block * 128; | |
764 | ||
765 | Info->Flags = *ptr; | |
766 | ||
767 | ptr += 0xa; | |
768 | strncpy(Info->ID, ptr, 12); | |
769 | ptr += 12; | |
770 | strncpy(Info->Name, ptr, 16); | |
771 | } | |
772 | ||
496d88d4 | 773 | int sioFreeze(void *f, int Mode) { |
ef79bbde P |
774 | gzfreeze(buf, sizeof(buf)); |
775 | gzfreeze(&StatReg, sizeof(StatReg)); | |
776 | gzfreeze(&ModeReg, sizeof(ModeReg)); | |
777 | gzfreeze(&CtrlReg, sizeof(CtrlReg)); | |
778 | gzfreeze(&BaudReg, sizeof(BaudReg)); | |
779 | gzfreeze(&bufcount, sizeof(bufcount)); | |
780 | gzfreeze(&parp, sizeof(parp)); | |
781 | gzfreeze(&mcdst, sizeof(mcdst)); | |
782 | gzfreeze(&rdwr, sizeof(rdwr)); | |
783 | gzfreeze(&adrH, sizeof(adrH)); | |
784 | gzfreeze(&adrL, sizeof(adrL)); | |
785 | gzfreeze(&padst, sizeof(padst)); | |
786 | ||
787 | return 0; | |
788 | } |