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