libpcsxcore/cdrom.c

   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 * Handles all CD-ROM registers and functions.
  22 */
  23
  24 #include "cdrom.h"
  25 #include "ppf.h"
  26 #include "psxdma.h"
  27
  28 cdrStruct cdr;
  29
  30 /* CD-ROM magic numbers */
  31 #define CdlSync        0
  32 #define CdlNop         1
  33 #define CdlSetloc      2
  34 #define CdlPlay        3
  35 #define CdlForward     4
  36 #define CdlBackward    5
  37 #define CdlReadN       6
  38 #define CdlStandby     7
  39 #define CdlStop        8
  40 #define CdlPause       9
  41 #define CdlInit        10
  42 #define CdlMute        11
  43 #define CdlDemute      12
  44 #define CdlSetfilter   13
  45 #define CdlSetmode     14
  46 #define CdlGetmode     15
  47 #define CdlGetlocL     16
  48 #define CdlGetlocP     17
  49 #define CdlReadT       18
  50 #define CdlGetTN       19
  51 #define CdlGetTD       20
  52 #define CdlSeekL       21
  53 #define CdlSeekP       22
  54 #define CdlSetclock    23
  55 #define CdlGetclock    24
  56 #define CdlTest        25
  57 #define CdlID          26
  58 #define CdlReadS       27
  59 #define CdlReset       28
  60 #define CdlReadToc     30
  61
  62 #define AUTOPAUSE      249
  63 #define READ_ACK       250
  64 #define READ           251
  65 #define REPPLAY_ACK    252
  66 #define REPPLAY        253
  67 #define ASYNC          254
  68 /* don't set 255, it's reserved */
  69
  70 char *CmdName[0x100]= {
  71     "CdlSync",     "CdlNop",       "CdlSetloc",  "CdlPlay",
  72     "CdlForward",  "CdlBackward",  "CdlReadN",   "CdlStandby",
  73     "CdlStop",     "CdlPause",     "CdlInit",    "CdlMute",
  74     "CdlDemute",   "CdlSetfilter", "CdlSetmode", "CdlGetmode",
  75     "CdlGetlocL",  "CdlGetlocP",   "CdlReadT",   "CdlGetTN",
  76     "CdlGetTD",    "CdlSeekL",     "CdlSeekP",   "CdlSetclock",
  77     "CdlGetclock", "CdlTest",      "CdlID",      "CdlReadS",
  78     "CdlReset",    NULL,           "CDlReadToc", NULL
  79 };
  80
  81 unsigned char Test04[] = { 0 };
  82 unsigned char Test05[] = { 0 };
  83 unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
  84 unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
  85 unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
  86
  87 // cdr.Stat:
  88 #define NoIntr          0
  89 #define DataReady       1
  90 #define Complete        2
  91 #define Acknowledge     3
  92 #define DataEnd         4
  93 #define DiskError       5
  94
  95 /* Modes flags */
  96 #define MODE_SPEED       (1<<7) // 0x80
  97 #define MODE_STRSND      (1<<6) // 0x40 ADPCM on/off
  98 #define MODE_SIZE_2340   (1<<5) // 0x20
  99 #define MODE_SIZE_2328   (1<<4) // 0x10
 100 #define MODE_SF          (1<<3) // 0x08 channel on/off
 101 #define MODE_REPORT      (1<<2) // 0x04
 102 #define MODE_AUTOPAUSE   (1<<1) // 0x02
 103 #define MODE_CDDA        (1<<0) // 0x01
 104
 105 /* Status flags */
 106 #define STATUS_PLAY      (1<<7) // 0x80
 107 #define STATUS_SEEK      (1<<6) // 0x40
 108 #define STATUS_READ      (1<<5) // 0x20
 109 #define STATUS_SHELLOPEN (1<<4) // 0x10
 110 #define STATUS_UNKNOWN3  (1<<3) // 0x08
 111 #define STATUS_UNKNOWN2  (1<<2) // 0x04
 112 #define STATUS_ROTATING  (1<<1) // 0x02
 113 #define STATUS_ERROR     (1<<0) // 0x01
 114
 115
 116
 117 // 1x = 75 sectors per second
 118 // PSXCLK = 1 sec in the ps
 119 // so (PSXCLK / 75) = cdr read time (linuzappz)
 120 #define cdReadTime (PSXCLK / 75)
 121
 122 static struct CdrStat stat;
 123
 124 static unsigned int msf2sec(char *msf) {
 125         return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
 126 }
 127
 128 static void sec2msf(unsigned int s, char *msf) {
 129         msf[0] = s / 75 / 60;
 130         s = s - msf[0] * 75 * 60;
 131         msf[1] = s / 75;
 132         s = s - msf[1] * 75;
 133         msf[2] = s;
 134 }
 135
 136
 137 #define CDR_INT(eCycle) { \
 138         psxRegs.interrupt |= (1 << PSXINT_CDR); \
 139         psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
 140         psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \
 141         new_dyna_set_event(PSXINT_CDR, eCycle); \
 142 }
 143
 144 #define CDREAD_INT(eCycle) { \
 145         psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
 146         psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \
 147         psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
 148         new_dyna_set_event(PSXINT_CDREAD, eCycle); \
 149 }
 150
 151 #define CDRLID_INT(eCycle) { \
 152         psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
 153         psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
 154         psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \
 155         new_dyna_set_event(PSXINT_CDRLID, eCycle); \
 156 }
 157
 158 #define CDRPLAY_INT(eCycle) { \
 159         psxRegs.interrupt |= (1 << PSXINT_CDRPLAY); \
 160         psxRegs.intCycle[PSXINT_CDRPLAY].cycle = eCycle; \
 161         psxRegs.intCycle[PSXINT_CDRPLAY].sCycle = psxRegs.cycle; \
 162         new_dyna_set_event(PSXINT_CDRPLAY, eCycle); \
 163 }
 164
 165 #define StartReading(type, eCycle) { \
 166         cdr.Reading = type; \
 167         cdr.FirstSector = 1; \
 168         cdr.Readed = 0xff; \
 169         AddIrqQueue(READ_ACK, eCycle); \
 170 }
 171
 172 #define StopReading() { \
 173         if (cdr.Reading) { \
 174                 cdr.Reading = 0; \
 175                 psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
 176         } \
 177         cdr.StatP &= ~STATUS_READ;\
 178 }
 179
 180 #define StopCdda() { \
 181         if (cdr.Play) { \
 182                 if (!Config.Cdda) CDR_stop(); \
 183                 cdr.StatP &= ~STATUS_PLAY; \
 184                 cdr.Play = FALSE; \
 185                 cdr.FastForward = 0; \
 186                 cdr.FastBackward = 0; \
 187                 /*SPU_registerCallback( SPUirq );*/ \
 188         } \
 189 }
 190
 191 #define SetResultSize(size) { \
 192     cdr.ResultP = 0; \
 193         cdr.ResultC = size; \
 194         cdr.ResultReady = 1; \
 195 }
 196
 197
 198 void cdrLidSeekInterrupt()
 199 {
 200         // turn back on checking
 201         if( cdr.LidCheck == 0x10 )
 202         {
 203                 cdr.LidCheck = 0;
 204         }
 205
 206         // official lid close
 207         else if( cdr.LidCheck == 0x30 )
 208         {
 209                 // GS CDX 3.3: $13
 210                 cdr.StatP |= STATUS_ROTATING;
 211
 212
 213                 // GS CDX 3.3 - ~50 getlocp tries
 214                 CDRLID_INT( cdReadTime * 3 );
 215                 cdr.LidCheck = 0x40;
 216         }
 217
 218         // turn off ready
 219         else if( cdr.LidCheck == 0x40 )
 220         {
 221                 // GS CDX 3.3: $01
 222                 cdr.StatP &= ~STATUS_SHELLOPEN;
 223                 cdr.StatP &= ~STATUS_ROTATING;
 224
 225
 226                 // GS CDX 3.3 - ~50 getlocp tries
 227                 CDRLID_INT( cdReadTime * 3 );
 228                 cdr.LidCheck = 0x50;
 229         }
 230
 231         // now seek
 232         else if( cdr.LidCheck == 0x50 )
 233         {
 234                 // GameShark Lite: Start seeking ($42)
 235                 cdr.StatP |= STATUS_SEEK;
 236                 cdr.StatP |= STATUS_ROTATING;
 237                 cdr.StatP &= ~STATUS_ERROR;
 238
 239
 240                 CDRLID_INT( cdReadTime * 3 );
 241                 cdr.LidCheck = 0x60;
 242         }
 243
 244         // done = cd ready
 245         else if( cdr.LidCheck == 0x60 )
 246         {
 247                 // GameShark Lite: Seek detection done ($02)
 248                 cdr.StatP &= ~STATUS_SEEK;
 249
 250                 cdr.LidCheck = 0;
 251         }
 252 }
 253
 254
 255 static void Check_Shell( int Irq )
 256 {
 257         // check case open/close
 258         if (cdr.LidCheck > 0)
 259         {
 260 #ifdef CDR_LOG
 261                 CDR_LOG( "LidCheck\n" );
 262 #endif
 263
 264                 // $20 = check lid state
 265                 if( cdr.LidCheck == 0x20 )
 266                 {
 267                         u32 i;
 268
 269                         i = stat.Status;
 270                         if (CDR_getStatus(&stat) != -1)
 271                         {
 272                                 if (stat.Type == 0xff)
 273                                         cdr.Stat = DiskError;
 274
 275                                 // case now open
 276                                 else if (stat.Status & STATUS_SHELLOPEN)
 277                                 {
 278                                         // Vib Ribbon: pre-CD swap
 279                                         StopCdda();
 280
 281
 282                                         // GameShark Lite: Death if DiskError happens
 283                                         //
 284                                         // Vib Ribbon: Needs DiskError for CD swap
 285
 286                                         if (Irq != CdlNop)
 287                                         {
 288                                                 cdr.Stat = DiskError;
 289
 290                                                 cdr.StatP |= STATUS_ERROR;
 291                                                 cdr.Result[0] |= STATUS_ERROR;
 292                                         }
 293
 294                                         // GameShark Lite: Wants -exactly- $10
 295                                         cdr.StatP |= STATUS_SHELLOPEN;
 296                                         cdr.StatP &= ~STATUS_ROTATING;
 297
 298
 299                                         CDRLID_INT( cdReadTime * 3 );
 300                                         cdr.LidCheck = 0x10;
 301
 302
 303                                         // GS CDX 3.3 = $11
 304                                 }
 305
 306                                 // case just closed
 307                                 else if ( i & STATUS_SHELLOPEN )
 308                                 {
 309                                         cdr.StatP |= STATUS_ROTATING;
 310
 311                                         CheckCdrom();
 312
 313
 314                                         if( cdr.Stat == NoIntr )
 315                                                 cdr.Stat = Acknowledge;
 316
 317                                         psxHu32ref(0x1070) |= SWAP32((u32)0x4);
 318
 319
 320                                         // begin close-seek-ready cycle
 321                                         CDRLID_INT( cdReadTime * 3 );
 322                                         cdr.LidCheck = 0x30;
 323
 324
 325                                         // GameShark Lite: Wants -exactly- $42, then $02
 326                                         // GS CDX 3.3: Wants $11/$80, $13/$80, $01/$00
 327                                 }
 328
 329                                 // case still closed - wait for recheck
 330                                 else
 331                                 {
 332                                         CDRLID_INT( cdReadTime * 3 );
 333                                         cdr.LidCheck = 0x10;
 334                                 }
 335                         }
 336                 }
 337
 338
 339                 // GS CDX: clear all values but #1,#2
 340                 if( (cdr.LidCheck >= 0x30) || (cdr.StatP & STATUS_SHELLOPEN) )
 341                 {
 342                         SetResultSize(16);
 343                         memset( cdr.Result, 0, 16 );
 344
 345                         cdr.Result[0] = cdr.StatP;
 346
 347
 348                         // GS CDX: special return value
 349                         if( cdr.StatP & STATUS_SHELLOPEN )
 350                         {
 351                                 cdr.Result[1] = 0x80;
 352                         }
 353
 354
 355                         if( cdr.Stat == NoIntr )
 356                                 cdr.Stat = Acknowledge;
 357
 358                         psxHu32ref(0x1070) |= SWAP32((u32)0x4);
 359                 }
 360         }
 361 }
 362
 363
 364 void Find_CurTrack() {
 365         cdr.CurTrack = 0;
 366
 367         if (CDR_getTN(cdr.ResultTN) != -1) {
 368                 int lcv;
 369
 370                 for( lcv = 1; lcv <= cdr.ResultTN[1]; lcv++ ) {
 371                         if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
 372                                 u32 sect1, sect2;
 373
 374 #ifdef CDR_LOG___0
 375                                 CDR_LOG( "curtrack %d %d %d | %d %d %d | %d\n",
 376                                         cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
 377                                         cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
 378                                         cdr.CurTrack );
 379 #endif
 380
 381                                 // find next track boundary - only need m:s accuracy
 382                                 sect1 = cdr.SetSectorPlay[0] * 60 * 75 + cdr.SetSectorPlay[1] * 75;
 383                                 sect2 = cdr.ResultTD[2] * 60 * 75 + cdr.ResultTD[1] * 75;
 384
 385                                 // Twisted Metal 4 - psx cdda pregap (2-sec)
 386                                 // - fix in-game music
 387                                 sect2 -= 75 * 2;
 388
 389                                 if( sect1 >= sect2 ) {
 390                                         cdr.CurTrack++;
 391                                         continue;
 392                                 }
 393                         }
 394
 395                         break;
 396                 }
 397         }
 398 }
 399
 400 static void ReadTrack( u8 *time ) {
 401         cdr.Prev[0] = itob( time[0] );
 402         cdr.Prev[1] = itob( time[1] );
 403         cdr.Prev[2] = itob( time[2] );
 404
 405 #ifdef CDR_LOG
 406         CDR_LOG("ReadTrack() Log: KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
 407 #endif
 408         cdr.RErr = CDR_readTrack(cdr.Prev);
 409 }
 410
 411
 412 void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
 413         cdr.Irq = irq;
 414         cdr.eCycle = ecycle;
 415
 416         // Doom: Force rescheduling
 417         // - Fixes boot
 418         CDR_INT(ecycle);
 419 }
 420
 421
 422 void Set_Track()
 423 {
 424         if (CDR_getTN(cdr.ResultTN) != -1) {
 425                 int lcv;
 426
 427                 for( lcv = 1; lcv < cdr.ResultTN[1]; lcv++ ) {
 428                         if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
 429 #ifdef CDR_LOG___0
 430                                 CDR_LOG( "settrack %d %d %d | %d %d %d | %d\n",
 431                                         cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
 432                                         cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
 433                                         cdr.CurTrack );
 434 #endif
 435
 436                                 // check if time matches track start (only need min, sec accuracy)
 437                                 // - m:s:f vs f:s:m
 438                                 if( cdr.SetSectorPlay[0] == cdr.ResultTD[2] &&
 439                                                 cdr.SetSectorPlay[1] == cdr.ResultTD[1] ) {
 440                                         // skip pregap frames
 441                                         if( cdr.SetSectorPlay[2] < cdr.ResultTD[0] )
 442                                                 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
 443
 444                                         break;
 445                                 }
 446                                 else if( cdr.SetSectorPlay[0] < cdr.ResultTD[2] )
 447                                         break;
 448                         }
 449                 }
 450         }
 451 }
 452
 453
 454 static u8 fake_subq_local[3], fake_subq_real[3], fake_subq_index, fake_subq_change;
 455 static void Create_Fake_Subq()
 456 {
 457         u8 temp_cur[3], temp_next[3], temp_start[3], pregap;
 458         int diff;
 459
 460         if (CDR_getTN(cdr.ResultTN) == -1) return;
 461         if( cdr.CurTrack+1 <= cdr.ResultTN[1] ) {
 462                 pregap = 150;
 463                 if( CDR_getTD(cdr.CurTrack+1, cdr.ResultTD) == -1 ) return;
 464         } else {
 465                 // last track - cd size
 466                 pregap = 0;
 467                 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
 468         }
 469
 470         if( cdr.Play == TRUE ) {
 471                 temp_cur[0] = cdr.SetSectorPlay[0];
 472                 temp_cur[1] = cdr.SetSectorPlay[1];
 473                 temp_cur[2] = cdr.SetSectorPlay[2];
 474         } else {
 475                 temp_cur[0] = btoi( cdr.Prev[0] );
 476                 temp_cur[1] = btoi( cdr.Prev[1] );
 477                 temp_cur[2] = btoi( cdr.Prev[2] );
 478         }
 479
 480         fake_subq_real[0] = temp_cur[0];
 481         fake_subq_real[1] = temp_cur[1];
 482         fake_subq_real[2] = temp_cur[2];
 483
 484         temp_next[0] = cdr.ResultTD[2];
 485         temp_next[1] = cdr.ResultTD[1];
 486         temp_next[2] = cdr.ResultTD[0];
 487
 488
 489         // flag- next track
 490         if( msf2sec(temp_cur) >= msf2sec( temp_next )-pregap ) {
 491                 fake_subq_change = 1;
 492
 493                 cdr.CurTrack++;
 494
 495                 // end cd
 496                 if( pregap == 0 ) StopCdda();
 497         }
 498
 499         //////////////////////////////////////////////////
 500         //////////////////////////////////////////////////
 501
 502         // repair
 503         if( cdr.CurTrack <= cdr.ResultTN[1] ) {
 504                 if( CDR_getTD(cdr.CurTrack, cdr.ResultTD) == -1 ) return;
 505         } else {
 506                 // last track - cd size
 507                 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
 508         }
 509
 510         temp_start[0] = cdr.ResultTD[2];
 511         temp_start[1] = cdr.ResultTD[1];
 512         temp_start[2] = cdr.ResultTD[0];
 513
 514
 515 #ifdef CDR_LOG
 516         CDR_LOG( "CDDA FAKE SUB - %d:%d:%d / %d:%d:%d / %d:%d:%d\n",
 517                 temp_cur[0], temp_cur[1], temp_cur[2],
 518                 temp_start[0], temp_start[1], temp_start[2],
 519                 temp_next[0], temp_next[1], temp_next[2]);
 520 #endif
 521
 522
 523
 524         // local time - pregap / real
 525         diff = msf2sec(temp_cur) - msf2sec( temp_start );
 526         if( diff < 0 ) {
 527                 fake_subq_index = 0;
 528
 529                 sec2msf( -diff, fake_subq_local );
 530         } else {
 531                 fake_subq_index = 1;
 532
 533                 sec2msf( diff, fake_subq_local );
 534         }
 535 }
 536
 537
 538 static void cdrPlayInterrupt_Autopause()
 539 {
 540         struct SubQ *subq = (struct SubQ *)CDR_getBufferSub();
 541         if (subq != NULL ) {
 542 #ifdef CDR_LOG
 543                 CDR_LOG( "CDDA SUB - %X:%X:%X\n",
 544                         subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
 545 #endif
 546
 547                 /*
 548                 CDDA Autopause
 549
 550                 Silhouette Mirage ($3)
 551                 Tomb Raider 1 ($7)
 552                 */
 553
 554                 if( cdr.CurTrack >= btoi( subq->TrackNumber ) )
 555                         return;
 556         } else {
 557                 Create_Fake_Subq();
 558 #ifdef CDR_LOG___0
 559                 CDR_LOG( "CDDA FAKE SUB - %d:%d:%d\n",
 560                         fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
 561 #endif
 562
 563                 if( !fake_subq_change )
 564                         return;
 565
 566                 fake_subq_change = 0;
 567         }
 568
 569         if (cdr.Mode & MODE_AUTOPAUSE) {
 570 #ifdef CDR_LOG
 571                 CDR_LOG( "CDDA STOP\n" );
 572 #endif
 573
 574                 // Magic the Gathering
 575                 // - looping territory cdda
 576
 577                 // ...?
 578                 //cdr.ResultReady = 1;
 579                 //cdr.Stat = DataReady;
 580                 cdr.Stat = DataEnd;
 581                 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
 582
 583                 StopCdda();
 584         }
 585         if (cdr.Mode & MODE_REPORT) {
 586                 // rearmed note: PCSX-Reloaded does this for every sector,
 587                 // but we try to get away with only track change here.
 588                 memset( cdr.Result, 0, 8 );
 589                 cdr.Result[0] |= 0x10;
 590
 591                 if (subq != NULL) {
 592 #ifdef CDR_LOG
 593                         CDR_LOG( "REPPLAY SUB - %X:%X:%X\n",
 594                                 subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
 595 #endif
 596                         cdr.CurTrack = btoi( subq->TrackNumber );
 597
 598                         // BIOS CD Player: data already BCD format
 599                         cdr.Result[1] = subq->TrackNumber;
 600                         cdr.Result[2] = subq->IndexNumber;
 601
 602                         cdr.Result[3] = subq->AbsoluteAddress[0];
 603                         cdr.Result[4] = subq->AbsoluteAddress[1];
 604                         cdr.Result[5] = subq->AbsoluteAddress[2];
 605                 } else {
 606 #ifdef CDR_LOG___0
 607                         CDR_LOG( "REPPLAY FAKE - %d:%d:%d\n",
 608                                 fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
 609 #endif
 610
 611                         // track # / index #
 612                         cdr.Result[1] = itob(cdr.CurTrack);
 613                         cdr.Result[2] = itob(fake_subq_index);
 614                         // absolute
 615                         cdr.Result[3] = itob( fake_subq_real[0] );
 616                         cdr.Result[4] = itob( fake_subq_real[1] );
 617                         cdr.Result[5] = itob( fake_subq_real[2] );
 618                 }
 619
 620                 // Rayman: Logo freeze (resultready + dataready)
 621                 cdr.ResultReady = 1;
 622                 cdr.Stat = DataReady;
 623
 624                 SetResultSize(8);
 625                 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
 626         }
 627 }
 628
 629 void cdrPlayInterrupt()
 630 {
 631         if( !cdr.Play ) return;
 632
 633 #ifdef CDR_LOG
 634         CDR_LOG( "CDDA - %d:%d:%d\n",
 635                 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
 636 #endif
 637         CDRPLAY_INT( cdReadTime );
 638
 639         if (!cdr.Irq && !cdr.Stat && (cdr.Mode & MODE_CDDA) && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
 640                 cdrPlayInterrupt_Autopause();
 641
 642         cdr.SetSectorPlay[2]++;
 643         if (cdr.SetSectorPlay[2] == 75) {
 644                 cdr.SetSectorPlay[2] = 0;
 645                 cdr.SetSectorPlay[1]++;
 646                 if (cdr.SetSectorPlay[1] == 60) {
 647                         cdr.SetSectorPlay[1] = 0;
 648                         cdr.SetSectorPlay[0]++;
 649                 }
 650         }
 651
 652         //Check_Shell(0);
 653 }
 654
 655 void cdrInterrupt() {
 656         int i;
 657         unsigned char Irq = cdr.Irq;
 658         struct SubQ *subq;
 659
 660         // Reschedule IRQ
 661         if (cdr.Stat) {
 662                 CDR_INT( 0x100 );
 663                 return;
 664         }
 665
 666         cdr.Irq = 0xff;
 667         cdr.Ctrl &= ~0x80;
 668
 669         switch (Irq) {
 670                 case CdlSync:
 671                         SetResultSize(1);
 672                         cdr.StatP |= STATUS_ROTATING;
 673                         cdr.Result[0] = cdr.StatP;
 674                         cdr.Stat = Acknowledge;
 675                         break;
 676
 677                 case CdlNop:
 678                         SetResultSize(1);
 679                         cdr.Result[0] = cdr.StatP;
 680                         cdr.Stat = Acknowledge;
 681
 682                         if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
 683                         break;
 684
 685                 case CdlSetloc:
 686                         cdr.CmdProcess = 0;
 687                         SetResultSize(1);
 688                         cdr.StatP |= STATUS_ROTATING;
 689                         cdr.Result[0] = cdr.StatP;
 690                         cdr.Stat = Acknowledge;
 691                         break;
 692
 693                 case CdlPlay:
 694                         fake_subq_change = 0;
 695
 696                         if( cdr.Seeked == FALSE ) {
 697                                 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
 698                                 cdr.Seeked = TRUE;
 699                         }
 700
 701                         /*
 702                         Rayman: detect track changes
 703                         - fixes logo freeze
 704
 705                         Twisted Metal 2: skip PREGAP + starting accurate SubQ
 706                         - plays tracks without retry play
 707
 708                         Wild 9: skip PREGAP + starting accurate SubQ
 709                         - plays tracks without retry play
 710                         */
 711                         Set_Track();
 712                         Find_CurTrack();
 713                         ReadTrack( cdr.SetSectorPlay );
 714
 715
 716                         // GameShark CD Player: Calls 2x + Play 2x
 717                         if( cdr.FastBackward || cdr.FastForward ) {
 718                                 if( cdr.FastForward ) cdr.FastForward--;
 719                                 if( cdr.FastBackward ) cdr.FastBackward--;
 720
 721                                 if( cdr.FastBackward == 0 && cdr.FastForward == 0 ) {
 722                                         if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
 723                                                 cdr.SetSectorPlay[0] = stat.Time[0];
 724                                                 cdr.SetSectorPlay[1] = stat.Time[1];
 725                                                 cdr.SetSectorPlay[2] = stat.Time[2];
 726                                         }
 727                                 }
 728                         }
 729
 730
 731                         if (!Config.Cdda) {
 732                                 // BIOS CD Player
 733                                 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
 734
 735                                 // GameShark CD Player: Resume play
 736                                 if( cdr.ParamC == 0 ) {
 737 #ifdef CDR_LOG___0
 738                                         CDR_LOG( "PLAY Resume @ %d:%d:%d\n",
 739                                                 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
 740 #endif
 741
 742                                         //CDR_play( cdr.SetSectorPlay );
 743                                 }
 744                                 else
 745                                 {
 746                                         // BIOS CD Player: Resume play
 747                                         if( cdr.Param[0] == 0 ) {
 748 #ifdef CDR_LOG___0
 749                                                 CDR_LOG( "PLAY Resume T0 @ %d:%d:%d\n",
 750                                                         cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
 751 #endif
 752
 753                                                 //CDR_play( cdr.SetSectorPlay );
 754                                         }
 755                                         else {
 756 #ifdef CDR_LOG___0
 757                                                 CDR_LOG( "PLAY Resume Td @ %d:%d:%d\n",
 758                                                         cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
 759 #endif
 760
 761                                                 // BIOS CD Player: Allow track replaying
 762                                                 StopCdda();
 763
 764
 765                                                 cdr.CurTrack = btoi( cdr.Param[0] );
 766
 767                                                 if (CDR_getTN(cdr.ResultTN) != -1) {
 768                                                         // check last track
 769                                                         if (cdr.CurTrack > cdr.ResultTN[1])
 770                                                                 cdr.CurTrack = cdr.ResultTN[1];
 771
 772                                                         if (CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD) != -1) {
 773                                                                 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
 774                                                                 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
 775                                                                 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
 776
 777                                                                 // reset data
 778                                                                 Set_Track();
 779                                                                 Find_CurTrack();
 780                                                                 ReadTrack( cdr.SetSectorPlay );
 781
 782                                                                 //CDR_play(cdr.SetSectorPlay);
 783                                                         }
 784                                                 }
 785                                         }
 786                                 }
 787                         }
 788
 789
 790                         // Vib Ribbon: gameplay checks flag
 791                         cdr.StatP &= ~STATUS_SEEK;
 792
 793
 794                         cdr.CmdProcess = 0;
 795                         SetResultSize(1);
 796                         cdr.StatP |= STATUS_ROTATING;
 797                         cdr.Result[0] = cdr.StatP;
 798                         cdr.Stat = Acknowledge;
 799
 800                         cdr.StatP |= STATUS_PLAY;
 801
 802
 803                         // BIOS player - set flag again
 804                         cdr.Play = TRUE;
 805
 806                         CDRPLAY_INT( cdReadTime );
 807                         break;
 808
 809                 case CdlForward:
 810                         cdr.CmdProcess = 0;
 811                         SetResultSize(1);
 812                         cdr.StatP |= STATUS_ROTATING;
 813                         cdr.Result[0] = cdr.StatP;
 814                         cdr.Stat = Complete;
 815
 816
 817                         // GameShark CD Player: Calls 2x + Play 2x
 818                         if( cdr.FastForward == 0 ) cdr.FastForward = 2;
 819                         else cdr.FastForward++;
 820
 821                         cdr.FastBackward = 0;
 822                         break;
 823
 824                 case CdlBackward:
 825                         cdr.CmdProcess = 0;
 826                         SetResultSize(1);
 827                         cdr.StatP |= STATUS_ROTATING;
 828                         cdr.Result[0] = cdr.StatP;
 829                         cdr.Stat = Complete;
 830
 831
 832                         // GameShark CD Player: Calls 2x + Play 2x
 833                         if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
 834                         else cdr.FastBackward++;
 835
 836                         cdr.FastForward = 0;
 837                         break;
 838
 839                 case CdlStandby:
 840                         cdr.CmdProcess = 0;
 841                         SetResultSize(1);
 842                         cdr.StatP |= STATUS_ROTATING;
 843                         cdr.Result[0] = cdr.StatP;
 844                         cdr.Stat = Complete;
 845                         break;
 846
 847                 case CdlStop:
 848                         cdr.CmdProcess = 0;
 849                         SetResultSize(1);
 850                         cdr.StatP &= ~STATUS_ROTATING;
 851                         cdr.Result[0] = cdr.StatP;
 852                         cdr.Stat = Complete;
 853 //                      cdr.Stat = Acknowledge;
 854
 855                         if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
 856                         break;
 857
 858                 case CdlPause:
 859                         SetResultSize(1);
 860                         cdr.Result[0] = cdr.StatP;
 861                         cdr.Stat = Acknowledge;
 862
 863                         AddIrqQueue(CdlPause + 0x20, 0x800);
 864                         cdr.Ctrl |= 0x80;
 865                         break;
 866
 867                 case CdlPause + 0x20:
 868                         SetResultSize(1);
 869                         cdr.StatP &= ~STATUS_READ;
 870                         cdr.StatP |= STATUS_ROTATING;
 871                         cdr.Result[0] = cdr.StatP;
 872                         cdr.Stat = Complete;
 873                         break;
 874
 875                 case CdlInit:
 876                         SetResultSize(1);
 877                         cdr.StatP = STATUS_ROTATING;
 878                         cdr.Result[0] = cdr.StatP;
 879                         cdr.Stat = Acknowledge;
 880 //                      if (!cdr.Init) {
 881                                 AddIrqQueue(CdlInit + 0x20, 0x800);
 882 //                      }
 883                 break;
 884
 885                 case CdlInit + 0x20:
 886                         SetResultSize(1);
 887                         cdr.Result[0] = cdr.StatP;
 888                         cdr.Stat = Complete;
 889                         cdr.Init = 1;
 890                         break;
 891
 892                 case CdlMute:
 893                         SetResultSize(1);
 894                         cdr.StatP |= STATUS_ROTATING;
 895                         cdr.Result[0] = cdr.StatP;
 896                         cdr.Stat = Acknowledge;
 897                         break;
 898
 899                 case CdlDemute:
 900                         SetResultSize(1);
 901                         cdr.StatP |= STATUS_ROTATING;
 902                         cdr.Result[0] = cdr.StatP;
 903                         cdr.Stat = Acknowledge;
 904                         break;
 905
 906                 case CdlSetfilter:
 907                         SetResultSize(1);
 908                         cdr.StatP |= STATUS_ROTATING;
 909                         cdr.Result[0] = cdr.StatP;
 910                         cdr.Stat = Acknowledge;
 911                         break;
 912
 913                 case CdlSetmode:
 914                         SetResultSize(1);
 915                         cdr.StatP |= STATUS_ROTATING;
 916                         cdr.Result[0] = cdr.StatP;
 917                         cdr.Stat = Acknowledge;
 918                         break;
 919
 920                 case CdlGetmode:
 921                         SetResultSize(6);
 922                         cdr.StatP |= STATUS_ROTATING;
 923                         cdr.Result[0] = cdr.StatP;
 924                         cdr.Result[1] = cdr.Mode;
 925                         cdr.Result[2] = cdr.File;
 926                         cdr.Result[3] = cdr.Channel;
 927                         cdr.Result[4] = 0;
 928                         cdr.Result[5] = 0;
 929                         cdr.Stat = Acknowledge;
 930                         break;
 931
 932                 case CdlGetlocL:
 933                         SetResultSize(8);
 934                         for (i = 0; i < 8; i++)
 935                                 cdr.Result[i] = cdr.Transfer[i];
 936                         cdr.Stat = Acknowledge;
 937                         break;
 938
 939                 case CdlGetlocP:
 940                         // GameShark CDX CD Player: uses 17 bytes output (wraps around)
 941                         SetResultSize(17);
 942                         memset( cdr.Result, 0, 16 );
 943
 944                         subq = (struct SubQ *)CDR_getBufferSub();
 945
 946                         if (subq != NULL) {
 947                                 cdr.Result[0] = subq->TrackNumber;
 948                                 cdr.Result[1] = subq->IndexNumber;
 949                                 memcpy(cdr.Result + 2, subq->TrackRelativeAddress, 3);
 950                                 memcpy(cdr.Result + 5, subq->AbsoluteAddress, 3);
 951
 952
 953                                 // subQ integrity check - data only (skip audio)
 954                                 if( subq->TrackNumber == 1 && stat.Type == 0x01 ) {
 955                                 if (calcCrc((u8 *)subq + 12, 10) != (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
 956                                         memset(cdr.Result + 2, 0, 3 + 3); // CRC wrong, wipe out time data
 957                                 }
 958                                 }
 959                         } else {
 960                                 if( cdr.Play == FALSE || !(cdr.Mode & MODE_CDDA) || !(cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)) )
 961                                         Create_Fake_Subq();
 962
 963
 964                                 // track # / index #
 965                                 cdr.Result[0] = itob(cdr.CurTrack);
 966                                 cdr.Result[1] = itob(fake_subq_index);
 967
 968                                 // local
 969                                 cdr.Result[2] = itob( fake_subq_local[0] );
 970                                 cdr.Result[3] = itob( fake_subq_local[1] );
 971                                 cdr.Result[4] = itob( fake_subq_local[2] );
 972
 973                                 // absolute
 974                                 cdr.Result[5] = itob( fake_subq_real[0] );
 975                                 cdr.Result[6] = itob( fake_subq_real[1] );
 976                                 cdr.Result[7] = itob( fake_subq_real[2] );
 977                         }
 978
 979                         // redump.org - wipe time
 980                         /*if( !cdr.Play && CheckSBI(cdr.Result+5) ) {
 981                                 memset( cdr.Result+2, 0, 6 );
 982                         }
 983                         */
 984
 985                         cdr.Stat = Acknowledge;
 986                         break;
 987
 988                 case CdlGetTN:
 989                         // 5-Star Racing: don't stop CDDA
 990                         //
 991                         // Vib Ribbon: CD swap
 992                         StopReading();
 993
 994                         cdr.CmdProcess = 0;
 995                         SetResultSize(3);
 996                         cdr.StatP |= STATUS_ROTATING;
 997                         cdr.Result[0] = cdr.StatP;
 998                         if (CDR_getTN(cdr.ResultTN) == -1) {
 999                                 cdr.Stat = DiskError;
1000                                 cdr.Result[0] |= STATUS_ERROR;
1001                         } else {
1002                                 cdr.Stat = Acknowledge;
1003                                 cdr.Result[1] = itob(cdr.ResultTN[0]);
1004                                 cdr.Result[2] = itob(cdr.ResultTN[1]);
1005                         }
1006                         break;
1007
1008                 case CdlGetTD:
1009                         cdr.CmdProcess = 0;
1010                         cdr.Track = btoi(cdr.Param[0]);
1011                         SetResultSize(4);
1012                         cdr.StatP |= STATUS_ROTATING;
1013                         if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
1014                                 cdr.Stat = DiskError;
1015                                 cdr.Result[0] |= STATUS_ERROR;
1016                         } else {
1017                                 cdr.Stat = Acknowledge;
1018                                 cdr.Result[0] = cdr.StatP;
1019                                 cdr.Result[1] = itob(cdr.ResultTD[2]);
1020                                 cdr.Result[2] = itob(cdr.ResultTD[1]);
1021                                 cdr.Result[3] = itob(cdr.ResultTD[0]);
1022                         }
1023                         break;
1024
1025                 case CdlSeekL:
1026                         SetResultSize(1);
1027                         cdr.StatP |= STATUS_ROTATING;
1028                         cdr.Result[0] = cdr.StatP;
1029                         cdr.StatP |= STATUS_SEEK;
1030                         cdr.Stat = Acknowledge;
1031
1032                         /*
1033                         Crusaders of Might and Magic = 0.5x-4x
1034                         - fix cutscene speech start
1035
1036                         Eggs of Steel = 2x-?
1037                         - fix new game
1038
1039                         Medievil = ?-4x
1040                         - fix cutscene speech
1041
1042                         Rockman X5 = 0.5-4x
1043                         - fix capcom logo
1044                         */
1045                         AddIrqQueue(CdlSeekL + 0x20, cdReadTime * 4);
1046                         break;
1047
1048                 case CdlSeekL + 0x20:
1049                         SetResultSize(1);
1050                         cdr.StatP |= STATUS_ROTATING;
1051                         cdr.StatP &= ~STATUS_SEEK;
1052                         cdr.Result[0] = cdr.StatP;
1053                         cdr.Seeked = TRUE;
1054                         cdr.Stat = Complete;
1055
1056
1057                         // Mega Man Legends 2: must update read cursor for getlocp
1058                         ReadTrack( cdr.SetSector );
1059                         break;
1060
1061                 case CdlSeekP:
1062                         SetResultSize(1);
1063                         cdr.StatP |= STATUS_ROTATING;
1064                         cdr.Result[0] = cdr.StatP;
1065                         cdr.StatP |= STATUS_SEEK;
1066                         cdr.Stat = Acknowledge;
1067                         AddIrqQueue(CdlSeekP + 0x20, cdReadTime * 1);
1068                         break;
1069
1070                 case CdlSeekP + 0x20:
1071                         SetResultSize(1);
1072                         cdr.StatP |= STATUS_ROTATING;
1073                         cdr.StatP &= ~STATUS_SEEK;
1074                         cdr.Result[0] = cdr.StatP;
1075                         cdr.Stat = Complete;
1076                         cdr.Seeked = TRUE;
1077
1078                         // GameShark Music Player
1079                         memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
1080
1081                         // Tomb Raider 2: must update read cursor for getlocp
1082                         Find_CurTrack();
1083                         ReadTrack( cdr.SetSectorPlay );
1084                         break;
1085
1086                 case CdlTest:
1087                         cdr.Stat = Acknowledge;
1088                         switch (cdr.Param[0]) {
1089                                 case 0x20: // System Controller ROM Version
1090                                         SetResultSize(4);
1091                                         memcpy(cdr.Result, Test20, 4);
1092                                         break;
1093                                 case 0x22:
1094                                         SetResultSize(8);
1095                                         memcpy(cdr.Result, Test22, 4);
1096                                         break;
1097                                 case 0x23: case 0x24:
1098                                         SetResultSize(8);
1099                                         memcpy(cdr.Result, Test23, 4);
1100                                         break;
1101                         }
1102                         break;
1103
1104                 case CdlID:
1105                         SetResultSize(1);
1106                         cdr.StatP |= STATUS_ROTATING;
1107                         cdr.Result[0] = cdr.StatP;
1108                         cdr.Stat = Acknowledge;
1109                         AddIrqQueue(CdlID + 0x20, 0x800);
1110                         break;
1111
1112                 case CdlID + 0x20:
1113                         SetResultSize(8);
1114
1115                         if (CDR_getStatus(&stat) == -1) {
1116                                 cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
1117                                 cdr.Result[1] = 0x80; // 0x80 leads to the menu in the bios, else loads CD
1118                         }
1119                         else {
1120                                 if (stat.Type == 2) {
1121                                         // Music CD
1122                                         cdr.Result[0] = 0x08;
1123                                         cdr.Result[1] = 0x10;
1124
1125                                         cdr.Result[1] |= 0x80;
1126                                 }
1127                                 else {
1128                                         // Data CD
1129                                         if (CdromId[0] == '\0') {
1130                                                 cdr.Result[0] = 0x00;
1131                                                 cdr.Result[1] = 0x80;
1132                                         }
1133                                         else {
1134                                                 cdr.Result[0] = 0x08;
1135                                                 cdr.Result[1] = 0x00;
1136                                         }
1137                                 }
1138                         }
1139
1140                         cdr.Result[2] = 0x00;
1141                         cdr.Result[3] = 0x00;
1142                         strncpy((char *)&cdr.Result[4], "PCSX", 4);
1143                         cdr.Stat = Complete;
1144                         break;
1145
1146                 case CdlReset:
1147                         SetResultSize(1);
1148                         cdr.StatP = STATUS_ROTATING;
1149                         cdr.Result[0] = cdr.StatP;
1150                         cdr.Stat = Acknowledge;
1151                         break;
1152
1153                 case CdlReadT:
1154                         SetResultSize(1);
1155                         cdr.StatP |= STATUS_ROTATING;
1156                         cdr.Result[0] = cdr.StatP;
1157                         cdr.Stat = Acknowledge;
1158                         AddIrqQueue(CdlReadT + 0x20, 0x800);
1159                         break;
1160
1161                 case CdlReadT + 0x20:
1162                         SetResultSize(1);
1163                         cdr.StatP |= STATUS_ROTATING;
1164                         cdr.Result[0] = cdr.StatP;
1165                         cdr.Stat = Complete;
1166                         break;
1167
1168                 case CdlReadToc:
1169                         SetResultSize(1);
1170                         cdr.StatP |= STATUS_ROTATING;
1171                         cdr.Result[0] = cdr.StatP;
1172                         cdr.Stat = Acknowledge;
1173                         AddIrqQueue(CdlReadToc + 0x20, 0x800);
1174                         break;
1175
1176                 case CdlReadToc + 0x20:
1177                         SetResultSize(1);
1178                         cdr.StatP |= STATUS_ROTATING;
1179                         cdr.Result[0] = cdr.StatP;
1180                         cdr.Stat = Complete;
1181                         break;
1182
1183                 case AUTOPAUSE:
1184                         cdr.OCUP = 0;
1185 /*                      SetResultSize(1);
1186                         StopCdda();
1187                         StopReading();
1188                         cdr.OCUP = 0;
1189                         cdr.StatP&=~0x20;
1190                         cdr.StatP|= 0x2;
1191                         cdr.Result[0] = cdr.StatP;
1192                         cdr.Stat = DataEnd;
1193 */                      AddIrqQueue(CdlPause, 0x800);
1194                         break;
1195
1196                 case READ_ACK:
1197                         if (!cdr.Reading) return;
1198
1199
1200                         // Fighting Force 2 - update subq time immediately
1201                         // - fixes new game
1202                         ReadTrack( cdr.SetSector );
1203
1204
1205                         // Crusaders of Might and Magic - update getlocl now
1206                         // - fixes cutscene speech
1207                         {
1208                                 u8 *buf = CDR_getBuffer();
1209                                 memcpy(cdr.Transfer, buf, 8);
1210                         }
1211
1212
1213                         /*
1214                         Duke Nukem: Land of the Babes - seek then delay read for one frame
1215                         - fixes cutscenes
1216                         */
1217
1218                         if (!cdr.Seeked) {
1219                                 cdr.Seeked = TRUE;
1220
1221                                 cdr.StatP |= STATUS_SEEK;
1222                                 cdr.StatP &= ~STATUS_READ;
1223
1224                                 // Crusaders of Might and Magic - use short time
1225                                 // - fix cutscene speech (startup)
1226
1227                                 // ??? - use more accurate seek time later
1228                                 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1229                         } else {
1230                                 cdr.StatP |= STATUS_READ;
1231                                 cdr.StatP &= ~STATUS_SEEK;
1232
1233                                 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1234                         }
1235
1236                         SetResultSize(1);
1237                         cdr.StatP |= STATUS_ROTATING;
1238                         cdr.Result[0] = cdr.StatP;
1239                         cdr.Stat = Acknowledge;
1240                         break;
1241
1242                 case 0xff:
1243                         return;
1244
1245                 default:
1246                         cdr.Stat = Complete;
1247                         break;
1248         }
1249
1250         Check_Shell( Irq );
1251
1252         if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18) {
1253                 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1254         }
1255
1256 #ifdef CDR_LOG
1257         CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq);
1258 #endif
1259 }
1260
1261 void cdrReadInterrupt() {
1262         u8 *buf;
1263
1264         if (!cdr.Reading)
1265                 return;
1266
1267         if (cdr.Irq || cdr.Stat) {
1268                 CDREAD_INT(0x100);
1269                 return;
1270         }
1271
1272 #ifdef CDR_LOG
1273         CDR_LOG("cdrReadInterrupt() Log: KEY END");
1274 #endif
1275
1276         cdr.OCUP = 1;
1277         SetResultSize(1);
1278         cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1279         cdr.StatP &= ~STATUS_SEEK;
1280         cdr.Result[0] = cdr.StatP;
1281
1282         ReadTrack( cdr.SetSector );
1283
1284         buf = CDR_getBuffer();
1285         if (buf == NULL)
1286                 cdr.RErr = -1;
1287
1288         if (cdr.RErr == -1) {
1289 #ifdef CDR_LOG
1290                 fprintf(emuLog, "cdrReadInterrupt() Log: err\n");
1291 #endif
1292                 memset(cdr.Transfer, 0, DATA_SIZE);
1293                 cdr.Stat = DiskError;
1294                 cdr.Result[0] |= STATUS_ERROR;
1295                 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1296                 return;
1297         }
1298
1299         memcpy(cdr.Transfer, buf, DATA_SIZE);
1300         CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1301
1302
1303 #ifdef CDR_LOG
1304         fprintf(emuLog, "cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1305 #endif
1306
1307         if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1308                 // Firemen 2: Multi-XA files - briefings, cutscenes
1309                 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1310                         cdr.File = cdr.Transfer[4 + 0];
1311                         cdr.Channel = cdr.Transfer[4 + 1];
1312                 }
1313
1314                 if ((cdr.Transfer[4 + 2] & 0x4) &&
1315                          (cdr.Transfer[4 + 1] == cdr.Channel) &&
1316                         (cdr.Transfer[4 + 0] == cdr.File)) {
1317                         int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1318
1319                         if (!ret) {
1320                                 SPU_playADPCMchannel(&cdr.Xa);
1321                                 cdr.FirstSector = 0;
1322
1323
1324                                 // Crash Team Racing: music, speech
1325
1326                                 // signal ADPCM data ready
1327                                 psxHu32ref(0x1070) |= SWAP32((u32)0x200);
1328                         }
1329                         else cdr.FirstSector = -1;
1330                 }
1331         }
1332
1333         cdr.SetSector[2]++;
1334         if (cdr.SetSector[2] == 75) {
1335                 cdr.SetSector[2] = 0;
1336                 cdr.SetSector[1]++;
1337                 if (cdr.SetSector[1] == 60) {
1338                         cdr.SetSector[1] = 0;
1339                         cdr.SetSector[0]++;
1340                 }
1341         }
1342
1343         cdr.Readed = 0;
1344
1345         // G-Police: Don't autopause ADPCM even if mode set (music)
1346         if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & MODE_AUTOPAUSE) &&
1347                         (cdr.Transfer[4 + 2] & 0x4) != 0x4 ) { // EOF
1348 #ifdef CDR_LOG
1349                 CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n");
1350 #endif
1351 //              AddIrqQueue(AUTOPAUSE, 0x2000);
1352                 AddIrqQueue(CdlPause, 0x2000);
1353         }
1354         else {
1355                 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1356         }
1357
1358         /*
1359         Croc 2: $40 - only FORM1 (*)
1360         Judge Dredd: $C8 - only FORM1 (*)
1361         Sim Theme Park - no adpcm at all (zero)
1362         */
1363
1364         if( (cdr.Mode & MODE_STRSND) == 0 || (cdr.Transfer[4+2] & 0x4) != 0x4 ) {
1365                 cdr.Stat = DataReady;
1366         } else {
1367                 // Breath of Fire 3 - fix inn sleeping
1368                 // Rockman X5 - no music restart problem
1369                 cdr.Stat = NoIntr;
1370         }
1371         psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1372
1373         Check_Shell(0);
1374 }
1375
1376 /*
1377 cdrRead0:
1378         bit 0 - 0 REG1 command send / 1 REG1 data read
1379         bit 1 - 0 data transfer finish / 1 data transfer ready/in progress
1380         bit 2 - unknown
1381         bit 3 - unknown
1382         bit 4 - unknown
1383         bit 5 - 1 result ready
1384         bit 6 - 1 dma ready
1385         bit 7 - 1 command being processed
1386 */
1387
1388 unsigned char cdrRead0(void) {
1389         if (cdr.ResultReady)
1390                 cdr.Ctrl |= 0x20;
1391         else
1392                 cdr.Ctrl &= ~0x20;
1393
1394         if (cdr.OCUP)
1395                 cdr.Ctrl |= 0x40;
1396 //  else
1397 //              cdr.Ctrl &= ~0x40;
1398
1399         // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1400         cdr.Ctrl |= 0x18;
1401
1402 #ifdef CDR_LOG
1403         CDR_LOG("cdrRead0() Log: CD0 Read: %x\n", cdr.Ctrl);
1404 #endif
1405
1406         return psxHu8(0x1800) = cdr.Ctrl;
1407 }
1408
1409 /*
1410 cdrWrite0:
1411         0 - to send a command / 1 - to get the result
1412 */
1413
1414 void cdrWrite0(unsigned char rt) {
1415 #ifdef CDR_LOG
1416         CDR_LOG("cdrWrite0() Log: CD0 write: %x\n", rt);
1417 #endif
1418         cdr.Ctrl = rt | (cdr.Ctrl & ~0x3);
1419
1420         if (rt == 0) {
1421                 cdr.ParamP = 0;
1422                 cdr.ParamC = 0;
1423                 cdr.ResultReady = 0;
1424         }
1425 }
1426
1427 unsigned char cdrRead1(void) {
1428     if (cdr.ResultReady) { // && cdr.Ctrl & 0x1) {
1429                 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
1430                 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1431                 cdr.ResultP++;
1432                 if (cdr.ResultP == cdr.ResultC)
1433                         cdr.ResultReady = 0;
1434         } else {
1435                 psxHu8(0x1801) = 0;
1436         }
1437 #ifdef CDR_LOG
1438         CDR_LOG("cdrRead1() Log: CD1 Read: %x\n", psxHu8(0x1801));
1439 #endif
1440         return psxHu8(0x1801);
1441 }
1442
1443 void cdrWrite1(unsigned char rt) {
1444         int i;
1445
1446 #ifdef CDR_LOG
1447         CDR_LOG("cdrWrite1() Log: CD1 write: %x (%s)\n", rt, CmdName[rt]);
1448 #endif
1449
1450
1451         // Tekken: CDXA fade-out
1452         if( (cdr.Ctrl & 3) == 3 ) {
1453                 //cdr.AttenuatorRight[0] = rt;
1454         }
1455
1456
1457 //      psxHu8(0x1801) = rt;
1458         cdr.Cmd = rt;
1459         cdr.OCUP = 0;
1460
1461 #ifdef CDRCMD_DEBUG
1462         SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
1463         if (cdr.ParamC) {
1464                 SysPrintf(" Param[%d] = {", cdr.ParamC);
1465                 for (i = 0; i < cdr.ParamC; i++)
1466                         SysPrintf(" %x,", cdr.Param[i]);
1467                 SysPrintf("}\n");
1468         } else {
1469                 SysPrintf("\n");
1470         }
1471 #endif
1472
1473         if (cdr.Ctrl & 0x1) return;
1474
1475         switch (cdr.Cmd) {
1476         case CdlSync:
1477                 cdr.Ctrl |= 0x80;
1478                 cdr.Stat = NoIntr;
1479                 AddIrqQueue(cdr.Cmd, 0x800);
1480                 break;
1481
1482         case CdlNop:
1483                 cdr.Ctrl |= 0x80;
1484                 cdr.Stat = NoIntr;
1485
1486                 // Twisted Metal 3 - fix music
1487                 AddIrqQueue(cdr.Cmd, 0x800);
1488                 break;
1489
1490         case CdlSetloc:
1491                 StopReading();
1492                 cdr.Seeked = FALSE;
1493                 for (i = 0; i < 3; i++)
1494                         cdr.SetSector[i] = btoi(cdr.Param[i]);
1495                 cdr.SetSector[3] = 0;
1496
1497                 /*
1498                    if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) {
1499                  *(u32 *)cdr.SetSector = *(u32 *)cdr.SetSectorSeek;
1500                  }*/
1501
1502                 cdr.Ctrl |= 0x80;
1503                 cdr.Stat = NoIntr;
1504                 AddIrqQueue(cdr.Cmd, 0x800);
1505                 break;
1506
1507         case CdlPlay:
1508                 // Vib Ribbon: try same track again
1509                 StopCdda();
1510
1511                 if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
1512                         if (CDR_getTN(cdr.ResultTN) != -1) {
1513                                 if (cdr.CurTrack > cdr.ResultTN[1])
1514                                         cdr.CurTrack = cdr.ResultTN[1];
1515                                 if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
1516                                         int tmp = cdr.ResultTD[2];
1517                                         cdr.ResultTD[2] = cdr.ResultTD[0];
1518                                         cdr.ResultTD[0] = tmp;
1519                                         if (!Config.Cdda) CDR_play(cdr.ResultTD);
1520                                 }
1521                         }
1522                 } else if (!Config.Cdda) {
1523                         CDR_play(cdr.SetSector);
1524                 }
1525
1526                 // Vib Ribbon - decoded buffer IRQ for CDDA reading
1527                 // - fixes ribbon timing + music CD mode
1528                 //TODO?
1529                 //CDRDBUF_INT( PSXCLK / 44100 * 0x100 );
1530
1531
1532                 cdr.Play = TRUE;
1533
1534                 cdr.StatP |= STATUS_SEEK;
1535                 cdr.StatP &= ~STATUS_ROTATING;
1536
1537                 cdr.Ctrl |= 0x80;
1538                 cdr.Stat = NoIntr;
1539                 AddIrqQueue(cdr.Cmd, 0x800);
1540                 break;
1541
1542         case CdlForward:
1543                 //if (cdr.CurTrack < 0xaa)
1544                 //      cdr.CurTrack++;
1545                 cdr.Ctrl |= 0x80;
1546                 cdr.Stat = NoIntr;
1547                 AddIrqQueue(cdr.Cmd, 0x800);
1548                 break;
1549
1550         case CdlBackward:
1551                 //if (cdr.CurTrack > 1)
1552                 //cdr.CurTrack--;
1553                 cdr.Ctrl |= 0x80;
1554                 cdr.Stat = NoIntr;
1555                 AddIrqQueue(cdr.Cmd, 0x800);
1556                 break;
1557
1558         case CdlReadN:
1559                 cdr.Irq = 0;
1560                 StopReading();
1561                 cdr.Ctrl|= 0x80;
1562                 cdr.Stat = NoIntr;
1563                 StartReading(1, 0x800);
1564                 break;
1565
1566         case CdlStandby:
1567                 StopCdda();
1568                 StopReading();
1569                 cdr.Ctrl |= 0x80;
1570                 cdr.Stat = NoIntr;
1571                 AddIrqQueue(cdr.Cmd, 0x800);
1572                 break;
1573
1574         case CdlStop:
1575                 // GameShark CD Player: Reset CDDA to track start
1576                 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
1577                         cdr.SetSectorPlay[0] = stat.Time[0];
1578                         cdr.SetSectorPlay[1] = stat.Time[1];
1579                         cdr.SetSectorPlay[2] = stat.Time[2];
1580
1581                         Find_CurTrack();
1582
1583
1584                         // grab time for current track
1585                         CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
1586
1587                         cdr.SetSectorPlay[0] = cdr.ResultTD[2];
1588                         cdr.SetSectorPlay[1] = cdr.ResultTD[1];
1589                         cdr.SetSectorPlay[2] = cdr.ResultTD[0];
1590                 }
1591
1592                 StopCdda();
1593                 StopReading();
1594
1595                 cdr.Ctrl |= 0x80;
1596                 cdr.Stat = NoIntr;
1597                 AddIrqQueue(cdr.Cmd, 0x800);
1598                 break;
1599
1600         case CdlPause:
1601                 /*
1602                    GameShark CD Player: save time for resume
1603
1604                    Twisted Metal - World Tour: don't save times for DATA reads
1605                    - Only get 1 chance to do this right
1606                    */
1607                 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
1608                         cdr.SetSectorPlay[0] = stat.Time[0];
1609                         cdr.SetSectorPlay[1] = stat.Time[1];
1610                         cdr.SetSectorPlay[2] = stat.Time[2];
1611                 }
1612
1613                 StopCdda();
1614                 StopReading();
1615                 cdr.Ctrl |= 0x80;
1616                 cdr.Stat = NoIntr;
1617
1618                 /*
1619                    Gundam Battle Assault 2: much slower (*)
1620                    - Fixes boot, gameplay
1621
1622                    Hokuto no Ken 2: slower
1623                    - Fixes intro + subtitles
1624
1625                    InuYasha - Feudal Fairy Tale: slower
1626                    - Fixes battles
1627                    */
1628                 AddIrqQueue(cdr.Cmd, cdReadTime * 3);
1629                 break;
1630
1631         case CdlReset:
1632         case CdlInit:
1633                 StopCdda();
1634                 StopReading();
1635                 cdr.Ctrl |= 0x80;
1636                 cdr.Stat = NoIntr;
1637                 AddIrqQueue(cdr.Cmd, 0x800);
1638                 break;
1639
1640         case CdlMute:
1641                 cdr.Muted = TRUE;
1642                 cdr.Ctrl |= 0x80;
1643                 cdr.Stat = NoIntr;
1644                 AddIrqQueue(cdr.Cmd, 0x800);
1645
1646                         // Duke Nukem - Time to Kill
1647                         // - do not directly set cd-xa volume
1648                         //SPU_writeRegister( H_CDLeft, 0x0000 );
1649                         //SPU_writeRegister( H_CDRight, 0x0000 );
1650                 break;
1651
1652         case CdlDemute:
1653                 cdr.Muted = FALSE;
1654                 cdr.Ctrl |= 0x80;
1655                 cdr.Stat = NoIntr;
1656                 AddIrqQueue(cdr.Cmd, 0x800);
1657
1658                         // Duke Nukem - Time to Kill
1659                         // - do not directly set cd-xa volume
1660                         //SPU_writeRegister( H_CDLeft, 0x7f00 );
1661                         //SPU_writeRegister( H_CDRight, 0x7f00 );
1662                 break;
1663
1664         case CdlSetfilter:
1665                 cdr.File = cdr.Param[0];
1666                 cdr.Channel = cdr.Param[1];
1667                 cdr.Ctrl |= 0x80;
1668                 cdr.Stat = NoIntr;
1669                 AddIrqQueue(cdr.Cmd, 0x800);
1670                 break;
1671
1672         case CdlSetmode:
1673 #ifdef CDR_LOG
1674                 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
1675 #endif
1676                 cdr.Mode = cdr.Param[0];
1677                 cdr.Ctrl |= 0x80;
1678                 cdr.Stat = NoIntr;
1679                 AddIrqQueue(cdr.Cmd, 0x800);
1680
1681                 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1682                 // - fixes choppy movie sound
1683                 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1684                         StopCdda();
1685                 break;
1686
1687         case CdlGetmode:
1688                 cdr.Ctrl |= 0x80;
1689                 cdr.Stat = NoIntr;
1690                 AddIrqQueue(cdr.Cmd, 0x800);
1691                 break;
1692
1693         case CdlGetlocL:
1694                 cdr.Ctrl |= 0x80;
1695                 cdr.Stat = NoIntr;
1696
1697                 // Crusaders of Might and Magic - cutscene speech
1698                 AddIrqQueue(cdr.Cmd, 0x800);
1699                 break;
1700
1701         case CdlGetlocP:
1702                 cdr.Ctrl |= 0x80;
1703                 cdr.Stat = NoIntr;
1704
1705                 // GameShark CDX / Lite Player: pretty narrow time window
1706                 // - doesn't always work due to time inprecision
1707                 //AddIrqQueue(cdr.Cmd, 0x28);
1708
1709                 // Tomb Raider 2 - cdda
1710                 //AddIrqQueue(cdr.Cmd, 0x40);
1711
1712                 // rearmed: the above works in pcsxr-svn, but breaks here
1713                 // (TOCA world touring cars), perhaps some other code is not merged yet
1714                 AddIrqQueue(cdr.Cmd, 0x1000);
1715                 break;
1716
1717         case CdlGetTN:
1718                 cdr.Ctrl |= 0x80;
1719                 cdr.Stat = NoIntr;
1720                 //AddIrqQueue(cdr.Cmd, 0x800);
1721
1722                 // GameShark CDX CD Player: very long time
1723                 AddIrqQueue(cdr.Cmd, 0x100000);
1724                 break;
1725
1726         case CdlGetTD:
1727                 cdr.Ctrl |= 0x80;
1728                 cdr.Stat = NoIntr;
1729                 AddIrqQueue(cdr.Cmd, 0x800);
1730                 break;
1731
1732         case CdlSeekL:
1733 //                      ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
1734                 cdr.Ctrl |= 0x80;
1735                 cdr.Stat = NoIntr;
1736                 AddIrqQueue(cdr.Cmd, 0x800);
1737
1738                 StopCdda();
1739                 StopReading();
1740
1741                 break;
1742
1743         case CdlSeekP:
1744 //              ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
1745                 cdr.Ctrl |= 0x80;
1746                 cdr.Stat = NoIntr;
1747
1748                 // Tomb Raider 2 - reset cdda
1749                 StopCdda();
1750                 StopReading();
1751
1752                 AddIrqQueue(cdr.Cmd, 0x800);
1753                 break;
1754
1755         // Destruction Derby: read TOC? GetTD after this
1756         case CdlReadT:
1757                 cdr.Ctrl |= 0x80;
1758                 cdr.Stat = NoIntr;
1759                 AddIrqQueue(cdr.Cmd, 0x800);
1760                 break;
1761
1762         case CdlTest:
1763                 cdr.Ctrl |= 0x80;
1764                 cdr.Stat = NoIntr;
1765                 AddIrqQueue(cdr.Cmd, 0x800);
1766                 break;
1767
1768         case CdlID:
1769                 cdr.Ctrl |= 0x80;
1770                 cdr.Stat = NoIntr;
1771                 AddIrqQueue(cdr.Cmd, 0x800);
1772                 break;
1773
1774         case CdlReadS:
1775                 cdr.Irq = 0;
1776                 StopReading();
1777                 cdr.Ctrl |= 0x80;
1778                 cdr.Stat = NoIntr;
1779                 StartReading(2, 0x800);
1780                 break;
1781
1782         case CdlReadToc:
1783                 cdr.Ctrl |= 0x80;
1784                 cdr.Stat = NoIntr;
1785                 AddIrqQueue(cdr.Cmd, 0x800);
1786                 break;
1787
1788         default:
1789 #ifdef CDR_LOG
1790                 CDR_LOG("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
1791 #endif
1792                 return;
1793         }
1794         if (cdr.Stat != NoIntr) {
1795                 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1796         }
1797 }
1798
1799 unsigned char cdrRead2(void) {
1800         unsigned char ret;
1801
1802         if (cdr.Readed == 0) {
1803                 ret = 0;
1804         } else {
1805                 ret = *cdr.pTransfer++;
1806         }
1807
1808 #ifdef CDR_LOG
1809         CDR_LOG("cdrRead2() Log: CD2 Read: %x\n", ret);
1810 #endif
1811         return ret;
1812 }
1813
1814 void cdrWrite2(unsigned char rt) {
1815 #ifdef CDR_LOG
1816         CDR_LOG("cdrWrite2() Log: CD2 write: %x\n", rt);
1817 #endif
1818
1819         // Tekken: CDXA fade-out
1820         if( (cdr.Ctrl & 3) == 2 ) {
1821                 //cdr.AttenuatorLeft[0] = rt;
1822         }
1823         else if( (cdr.Ctrl & 3) == 3 ) {
1824                 //cdr.AttenuatorRight[1] = rt;
1825         }
1826
1827
1828         if (cdr.Ctrl & 0x1) {
1829                 switch (rt) {
1830                         case 0x07:
1831                                 cdr.ParamP = 0;
1832                                 cdr.ParamC = 0;
1833                                 cdr.ResultReady = 1; //0;
1834                                 cdr.Ctrl &= ~3; //cdr.Ctrl = 0;
1835                                 break;
1836
1837                         default:
1838                                 cdr.Reg2 = rt;
1839                                 break;
1840                 }
1841         } else if (!(cdr.Ctrl & 0x1) && cdr.ParamP < 8) {
1842                 cdr.Param[cdr.ParamP++] = rt;
1843                 cdr.ParamC++;
1844         }
1845 }
1846
1847 unsigned char cdrRead3(void) {
1848         if (cdr.Stat) {
1849                 if (cdr.Ctrl & 0x1)
1850                         psxHu8(0x1803) = cdr.Stat | 0xE0;
1851                 else
1852                         psxHu8(0x1803) = 0xff;
1853         } else {
1854                 psxHu8(0x1803) = 0;
1855         }
1856 #ifdef CDR_LOG
1857         CDR_LOG("cdrRead3() Log: CD3 Read: %x\n", psxHu8(0x1803));
1858 #endif
1859         return psxHu8(0x1803);
1860 }
1861
1862 void cdrWrite3(unsigned char rt) {
1863 #ifdef CDR_LOG
1864         CDR_LOG("cdrWrite3() Log: CD3 write: %x\n", rt);
1865 #endif
1866 /*
1867         // Tekken: CDXA fade-out
1868         if( (cdr.Ctrl & 3) == 2 ) {
1869                 cdr.AttenuatorLeft[1] = rt;
1870         }
1871         else if( (cdr.Ctrl & 3) == 3 && rt == 0x20 ) {
1872 #ifdef CDR_LOG
1873                 CDR_LOG( "CD-XA Volume: %X %X | %X %X\n",
1874                         cdr.AttenuatorLeft[0], cdr.AttenuatorLeft[1],
1875                         cdr.AttenuatorRight[0], cdr.AttenuatorRight[1] );
1876 #endif
1877         }
1878 */
1879
1880         // GameShark CDX CD Player: Irq timing mania
1881         if( rt == 0 &&
1882                         cdr.Irq != 0 && cdr.Irq != 0xff &&
1883                         cdr.ResultReady == 0 ) {
1884
1885                 // GS CDX: ~0x28 cycle timing - way too precise
1886                 if( cdr.Irq == CdlGetlocP ) {
1887                         cdrInterrupt();
1888
1889                         psxRegs.interrupt &= ~(1 << PSXINT_CDR);
1890                 }
1891         }
1892
1893
1894         if (rt == 0x07 && cdr.Ctrl & 0x1) {
1895                 cdr.Stat = 0;
1896
1897                 if (cdr.Irq == 0xff) {
1898                         cdr.Irq = 0;
1899                         return;
1900                 }
1901
1902                 if (cdr.Reading && !cdr.ResultReady) {
1903                         CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1904                 }
1905
1906                 return;
1907         }
1908
1909         if (rt == 0x80 && !(cdr.Ctrl & 0x1) && cdr.Readed == 0) {
1910                 cdr.Readed = 1;
1911                 cdr.pTransfer = cdr.Transfer;
1912
1913                 switch (cdr.Mode & 0x30) {
1914                         case MODE_SIZE_2328:
1915                         case 0x00:
1916                                 cdr.pTransfer += 12;
1917                                 break;
1918
1919                         case MODE_SIZE_2340:
1920                                 cdr.pTransfer += 0;
1921                                 break;
1922
1923                         default:
1924                                 break;
1925                 }
1926         }
1927 }
1928
1929 void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1930         u32 cdsize;
1931         u8 *ptr;
1932
1933 #ifdef CDR_LOG
1934         CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1935 #endif
1936
1937         switch (chcr) {
1938                 case 0x11000000:
1939                 case 0x11400100:
1940                         if (cdr.Readed == 0) {
1941 #ifdef CDR_LOG
1942                                 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1943 #endif
1944                                 break;
1945                         }
1946
1947                         cdsize = (bcr & 0xffff) * 4;
1948
1949                         // Ape Escape: bcr = 0001 / 0000
1950                         // - fix boot
1951                         if( cdsize == 0 )
1952                         {
1953                                 switch (cdr.Mode & 0x30) {
1954                                         case 0x00: cdsize = 2048; break;
1955                                         case MODE_SIZE_2328: cdsize = 2328; break;
1956                                         case MODE_SIZE_2340: cdsize = 2340; break;
1957                                 }
1958                         }
1959
1960
1961                         ptr = (u8 *)PSXM(madr);
1962                         if (ptr == NULL) {
1963 #ifdef CPU_LOG
1964                                 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1965 #endif
1966                                 break;
1967                         }
1968
1969                         /*
1970                         GS CDX: Enhancement CD crash
1971                         - Setloc 0:0:0
1972                         - CdlPlay
1973                         - Spams DMA3 and gets buffer overrun
1974                         */
1975
1976                         if( (cdr.pTransfer-cdr.Transfer) + cdsize > 2352 )
1977                         {
1978                                 // avoid crash - probably should wrap here
1979                                 //memcpy(ptr, cdr.pTransfer, cdsize);
1980                         }
1981                         else
1982                         {
1983                                 memcpy(ptr, cdr.pTransfer, cdsize);
1984                         }
1985
1986                         psxCpu->Clear(madr, cdsize / 4);
1987                         cdr.pTransfer += cdsize;
1988
1989
1990                         // burst vs normal
1991                         if( chcr == 0x11400100 ) {
1992                                 CDRDMA_INT( (cdsize/4) / 4 );
1993                         }
1994                         else if( chcr == 0x11000000 ) {
1995                                 CDRDMA_INT( (cdsize/4) * 1 );
1996                         }
1997                         return;
1998
1999                 default:
2000 #ifdef CDR_LOG
2001                         CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
2002 #endif
2003                         break;
2004         }
2005
2006         HW_DMA3_CHCR &= SWAP32(~0x01000000);
2007         DMA_INTERRUPT(3);
2008 }
2009
2010 void cdrDmaInterrupt()
2011 {
2012         HW_DMA3_CHCR &= SWAP32(~0x01000000);
2013         DMA_INTERRUPT(3);
2014 }
2015
2016 void cdrReset() {
2017         memset(&cdr, 0, sizeof(cdr));
2018         cdr.CurTrack = 1;
2019         cdr.File = 1;
2020         cdr.Channel = 1;
2021 }
2022
2023 int cdrFreeze(gzFile f, int Mode) {
2024         uintptr_t tmp;
2025
2026
2027         if( Mode == 0 ) {
2028                 StopCdda();
2029         }
2030
2031         gzfreeze(&cdr, sizeof(cdr));
2032
2033         if (Mode == 1)
2034                 tmp = cdr.pTransfer - cdr.Transfer;
2035
2036         gzfreeze(&tmp, sizeof(tmp));
2037
2038         if (Mode == 0)
2039                 cdr.pTransfer = cdr.Transfer + tmp;
2040
2041         return 0;
2042 }
2043
2044 void LidInterrupt() {
2045         cdr.LidCheck = 0x20; // start checker
2046
2047         CDRLID_INT( cdReadTime * 3 );
2048
2049         // generate interrupt if none active - open or close
2050         if (cdr.Irq == 0 || cdr.Irq == 0xff) {
2051                 cdr.Ctrl |= 0x80;
2052                 cdr.Stat = NoIntr;
2053                 AddIrqQueue(CdlNop, 0x800);
2054         }
2055 }