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 static unsigned char *pTransfer;
  30
  31 /* CD-ROM magic numbers */
  32 #define CdlSync        0
  33 #define CdlNop         1
  34 #define CdlSetloc      2
  35 #define CdlPlay        3
  36 #define CdlForward     4
  37 #define CdlBackward    5
  38 #define CdlReadN       6
  39 #define CdlStandby     7
  40 #define CdlStop        8
  41 #define CdlPause       9
  42 #define CdlInit        10
  43 #define CdlMute        11
  44 #define CdlDemute      12
  45 #define CdlSetfilter   13
  46 #define CdlSetmode     14
  47 #define CdlGetmode     15
  48 #define CdlGetlocL     16
  49 #define CdlGetlocP     17
  50 #define CdlReadT       18
  51 #define CdlGetTN       19
  52 #define CdlGetTD       20
  53 #define CdlSeekL       21
  54 #define CdlSeekP       22
  55 #define CdlSetclock    23
  56 #define CdlGetclock    24
  57 #define CdlTest        25
  58 #define CdlID          26
  59 #define CdlReadS       27
  60 #define CdlReset       28
  61 #define CdlReadToc     30
  62
  63 #define AUTOPAUSE      249
  64 #define READ_ACK       250
  65 #define READ           251
  66 #define REPPLAY_ACK    252
  67 #define REPPLAY        253
  68 #define ASYNC          254
  69 /* don't set 255, it's reserved */
  70
  71 char *CmdName[0x100]= {
  72     "CdlSync",     "CdlNop",       "CdlSetloc",  "CdlPlay",
  73     "CdlForward",  "CdlBackward",  "CdlReadN",   "CdlStandby",
  74     "CdlStop",     "CdlPause",     "CdlInit",    "CdlMute",
  75     "CdlDemute",   "CdlSetfilter", "CdlSetmode", "CdlGetmode",
  76     "CdlGetlocL",  "CdlGetlocP",   "CdlReadT",   "CdlGetTN",
  77     "CdlGetTD",    "CdlSeekL",     "CdlSeekP",   "CdlSetclock",
  78     "CdlGetclock", "CdlTest",      "CdlID",      "CdlReadS",
  79     "CdlReset",    NULL,           "CDlReadToc", NULL
  80 };
  81
  82 unsigned char Test04[] = { 0 };
  83 unsigned char Test05[] = { 0 };
  84 unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
  85 unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
  86 unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
  87
  88 // cdr.Stat:
  89 #define NoIntr          0
  90 #define DataReady       1
  91 #define Complete        2
  92 #define Acknowledge     3
  93 #define DataEnd         4
  94 #define DiskError       5
  95
  96 /* Modes flags */
  97 #define MODE_SPEED       (1<<7) // 0x80
  98 #define MODE_STRSND      (1<<6) // 0x40 ADPCM on/off
  99 #define MODE_SIZE_2340   (1<<5) // 0x20
 100 #define MODE_SIZE_2328   (1<<4) // 0x10
 101 #define MODE_SF          (1<<3) // 0x08 channel on/off
 102 #define MODE_REPORT      (1<<2) // 0x04
 103 #define MODE_AUTOPAUSE   (1<<1) // 0x02
 104 #define MODE_CDDA        (1<<0) // 0x01
 105
 106 /* Status flags */
 107 #define STATUS_PLAY      (1<<7) // 0x80
 108 #define STATUS_SEEK      (1<<6) // 0x40
 109 #define STATUS_READ      (1<<5) // 0x20
 110 #define STATUS_SHELLOPEN (1<<4) // 0x10
 111 #define STATUS_UNKNOWN3  (1<<3) // 0x08
 112 #define STATUS_UNKNOWN2  (1<<2) // 0x04
 113 #define STATUS_ROTATING  (1<<1) // 0x02
 114 #define STATUS_ERROR     (1<<0) // 0x01
 115
 116
 117
 118 // 1x = 75 sectors per second
 119 // PSXCLK = 1 sec in the ps
 120 // so (PSXCLK / 75) = cdr read time (linuzappz)
 121 #define cdReadTime (PSXCLK / 75)
 122
 123 static struct CdrStat stat;
 124
 125 static unsigned int msf2sec(char *msf) {
 126         return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
 127 }
 128
 129 static void sec2msf(unsigned int s, char *msf) {
 130         msf[0] = s / 75 / 60;
 131         s = s - msf[0] * 75 * 60;
 132         msf[1] = s / 75;
 133         s = s - msf[1] * 75;
 134         msf[2] = s;
 135 }
 136
 137
 138 #define CDR_INT(eCycle) { \
 139         psxRegs.interrupt |= (1 << PSXINT_CDR); \
 140         psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
 141         psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \
 142         new_dyna_set_event(PSXINT_CDR, eCycle); \
 143 }
 144
 145 #define CDREAD_INT(eCycle) { \
 146         psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
 147         psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \
 148         psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
 149         new_dyna_set_event(PSXINT_CDREAD, eCycle); \
 150 }
 151
 152 #define CDRLID_INT(eCycle) { \
 153         psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
 154         psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
 155         psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \
 156         new_dyna_set_event(PSXINT_CDRLID, eCycle); \
 157 }
 158
 159 #define CDRPLAY_INT(eCycle) { \
 160         psxRegs.interrupt |= (1 << PSXINT_CDRPLAY); \
 161         psxRegs.intCycle[PSXINT_CDRPLAY].cycle = eCycle; \
 162         psxRegs.intCycle[PSXINT_CDRPLAY].sCycle = psxRegs.cycle; \
 163         new_dyna_set_event(PSXINT_CDRPLAY, eCycle); \
 164 }
 165
 166 #define StartReading(type, eCycle) { \
 167         cdr.Reading = type; \
 168         cdr.FirstSector = 1; \
 169         cdr.Readed = 0xff; \
 170         AddIrqQueue(READ_ACK, eCycle); \
 171 }
 172
 173 #define StopReading() { \
 174         if (cdr.Reading) { \
 175                 cdr.Reading = 0; \
 176                 psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
 177         } \
 178         cdr.StatP &= ~STATUS_READ;\
 179 }
 180
 181 #define StopCdda() { \
 182         if (cdr.Play) { \
 183                 if (!Config.Cdda) CDR_stop(); \
 184                 cdr.StatP &= ~STATUS_PLAY; \
 185                 cdr.Play = FALSE; \
 186                 cdr.FastForward = 0; \
 187                 cdr.FastBackward = 0; \
 188                 /*SPU_registerCallback( SPUirq );*/ \
 189         } \
 190 }
 191
 192 #define SetResultSize(size) { \
 193     cdr.ResultP = 0; \
 194         cdr.ResultC = size; \
 195         cdr.ResultReady = 1; \
 196 }
 197
 198
 199 void cdrLidSeekInterrupt()
 200 {
 201         // turn back on checking
 202         if( cdr.LidCheck == 0x10 )
 203         {
 204                 cdr.LidCheck = 0;
 205         }
 206
 207         // official lid close
 208         else if( cdr.LidCheck == 0x30 )
 209         {
 210                 // GS CDX 3.3: $13
 211                 cdr.StatP |= STATUS_ROTATING;
 212
 213
 214                 // GS CDX 3.3 - ~50 getlocp tries
 215                 CDRLID_INT( cdReadTime * 3 );
 216                 cdr.LidCheck = 0x40;
 217         }
 218
 219         // turn off ready
 220         else if( cdr.LidCheck == 0x40 )
 221         {
 222                 // GS CDX 3.3: $01
 223                 cdr.StatP &= ~STATUS_SHELLOPEN;
 224                 cdr.StatP &= ~STATUS_ROTATING;
 225
 226
 227                 // GS CDX 3.3 - ~50 getlocp tries
 228                 CDRLID_INT( cdReadTime * 3 );
 229                 cdr.LidCheck = 0x50;
 230         }
 231
 232         // now seek
 233         else if( cdr.LidCheck == 0x50 )
 234         {
 235                 // GameShark Lite: Start seeking ($42)
 236                 cdr.StatP |= STATUS_SEEK;
 237                 cdr.StatP |= STATUS_ROTATING;
 238                 cdr.StatP &= ~STATUS_ERROR;
 239
 240
 241                 CDRLID_INT( cdReadTime * 3 );
 242                 cdr.LidCheck = 0x60;
 243         }
 244
 245         // done = cd ready
 246         else if( cdr.LidCheck == 0x60 )
 247         {
 248                 // GameShark Lite: Seek detection done ($02)
 249                 cdr.StatP &= ~STATUS_SEEK;
 250
 251                 cdr.LidCheck = 0;
 252         }
 253 }
 254
 255
 256 static void Check_Shell( int Irq )
 257 {
 258         // check case open/close
 259         if (cdr.LidCheck > 0)
 260         {
 261 #ifdef CDR_LOG
 262                 CDR_LOG( "LidCheck\n" );
 263 #endif
 264
 265                 // $20 = check lid state
 266                 if( cdr.LidCheck == 0x20 )
 267                 {
 268                         u32 i;
 269
 270                         i = stat.Status;
 271                         if (CDR_getStatus(&stat) != -1)
 272                         {
 273                                 // BIOS hangs + BIOS error messages
 274                                 //if (stat.Type == 0xff)
 275                                         //cdr.Stat = DiskError;
 276
 277                                 // case now open
 278                                 if (stat.Status & STATUS_SHELLOPEN)
 279                                 {
 280                                         // Vib Ribbon: pre-CD swap
 281                                         StopCdda();
 282
 283
 284                                         // GameShark Lite: Death if DiskError happens
 285                                         //
 286                                         // Vib Ribbon: Needs DiskError for CD swap
 287
 288                                         if (Irq != CdlNop)
 289                                         {
 290                                                 cdr.Stat = DiskError;
 291
 292                                                 cdr.StatP |= STATUS_ERROR;
 293                                                 cdr.Result[0] |= STATUS_ERROR;
 294                                         }
 295
 296                                         // GameShark Lite: Wants -exactly- $10
 297                                         cdr.StatP |= STATUS_SHELLOPEN;
 298                                         cdr.StatP &= ~STATUS_ROTATING;
 299
 300
 301                                         CDRLID_INT( cdReadTime * 3 );
 302                                         cdr.LidCheck = 0x10;
 303
 304
 305                                         // GS CDX 3.3 = $11
 306                                 }
 307
 308                                 // case just closed
 309                                 else if ( i & STATUS_SHELLOPEN )
 310                                 {
 311                                         cdr.StatP |= STATUS_ROTATING;
 312
 313                                         CheckCdrom();
 314
 315
 316                                         if( cdr.Stat == NoIntr )
 317                                                 cdr.Stat = Acknowledge;
 318
 319                                         psxHu32ref(0x1070) |= SWAP32((u32)0x4);
 320
 321
 322                                         // begin close-seek-ready cycle
 323                                         CDRLID_INT( cdReadTime * 3 );
 324                                         cdr.LidCheck = 0x30;
 325
 326
 327                                         // GameShark Lite: Wants -exactly- $42, then $02
 328                                         // GS CDX 3.3: Wants $11/$80, $13/$80, $01/$00
 329                                 }
 330
 331                                 // case still closed - wait for recheck
 332                                 else
 333                                 {
 334                                         CDRLID_INT( cdReadTime * 3 );
 335                                         cdr.LidCheck = 0x10;
 336                                 }
 337                         }
 338                 }
 339
 340
 341                 // GS CDX: clear all values but #1,#2
 342                 if( (cdr.LidCheck >= 0x30) || (cdr.StatP & STATUS_SHELLOPEN) )
 343                 {
 344                         SetResultSize(16);
 345                         memset( cdr.Result, 0, 16 );
 346
 347                         cdr.Result[0] = cdr.StatP;
 348
 349
 350                         // GS CDX: special return value
 351                         if( cdr.StatP & STATUS_SHELLOPEN )
 352                         {
 353                                 cdr.Result[1] = 0x80;
 354                         }
 355
 356
 357                         if( cdr.Stat == NoIntr )
 358                                 cdr.Stat = Acknowledge;
 359
 360                         psxHu32ref(0x1070) |= SWAP32((u32)0x4);
 361                 }
 362         }
 363 }
 364
 365
 366 void Find_CurTrack() {
 367         cdr.CurTrack = 0;
 368
 369         if (CDR_getTN(cdr.ResultTN) != -1) {
 370                 int lcv;
 371
 372                 for( lcv = 1; lcv <= cdr.ResultTN[1]; lcv++ ) {
 373                         if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
 374                                 u32 sect1, sect2;
 375
 376 #ifdef CDR_LOG___0
 377                                 CDR_LOG( "curtrack %d %d %d | %d %d %d | %d\n",
 378                                         cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
 379                                         cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
 380                                         cdr.CurTrack );
 381 #endif
 382
 383                                 // find next track boundary - only need m:s accuracy
 384                                 sect1 = cdr.SetSectorPlay[0] * 60 * 75 + cdr.SetSectorPlay[1] * 75;
 385                                 sect2 = cdr.ResultTD[2] * 60 * 75 + cdr.ResultTD[1] * 75;
 386
 387                                 // Twisted Metal 4 - psx cdda pregap (2-sec)
 388                                 // - fix in-game music
 389                                 sect2 -= 75 * 2;
 390
 391                                 if( sect1 >= sect2 ) {
 392                                         cdr.CurTrack++;
 393                                         continue;
 394                                 }
 395                         }
 396
 397                         break;
 398                 }
 399         }
 400 }
 401
 402 static void ReadTrack( u8 *time ) {
 403         cdr.Prev[0] = itob( time[0] );
 404         cdr.Prev[1] = itob( time[1] );
 405         cdr.Prev[2] = itob( time[2] );
 406
 407 #ifdef CDR_LOG
 408         CDR_LOG("ReadTrack() Log: KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
 409 #endif
 410         cdr.RErr = CDR_readTrack(cdr.Prev);
 411 }
 412
 413
 414 void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
 415         cdr.Irq = irq;
 416         cdr.eCycle = ecycle;
 417
 418         // Doom: Force rescheduling
 419         // - Fixes boot
 420         CDR_INT(ecycle);
 421 }
 422
 423
 424 void Set_Track()
 425 {
 426         if (CDR_getTN(cdr.ResultTN) != -1) {
 427                 int lcv;
 428
 429                 for( lcv = 1; lcv < cdr.ResultTN[1]; lcv++ ) {
 430                         if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
 431 #ifdef CDR_LOG___0
 432                                 CDR_LOG( "settrack %d %d %d | %d %d %d | %d\n",
 433                                         cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
 434                                         cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
 435                                         cdr.CurTrack );
 436 #endif
 437
 438                                 // check if time matches track start (only need min, sec accuracy)
 439                                 // - m:s:f vs f:s:m
 440                                 if( cdr.SetSectorPlay[0] == cdr.ResultTD[2] &&
 441                                                 cdr.SetSectorPlay[1] == cdr.ResultTD[1] ) {
 442                                         // skip pregap frames
 443                                         if( cdr.SetSectorPlay[2] < cdr.ResultTD[0] )
 444                                                 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
 445
 446                                         break;
 447                                 }
 448                                 else if( cdr.SetSectorPlay[0] < cdr.ResultTD[2] )
 449                                         break;
 450                         }
 451                 }
 452         }
 453 }
 454
 455
 456 static u8 fake_subq_local[3], fake_subq_real[3], fake_subq_index, fake_subq_change;
 457 static void Create_Fake_Subq()
 458 {
 459         u8 temp_cur[3], temp_next[3], temp_start[3], pregap;
 460         int diff;
 461
 462         if (CDR_getTN(cdr.ResultTN) == -1) return;
 463         if( cdr.CurTrack+1 <= cdr.ResultTN[1] ) {
 464                 pregap = 150;
 465                 if( CDR_getTD(cdr.CurTrack+1, cdr.ResultTD) == -1 ) return;
 466         } else {
 467                 // last track - cd size
 468                 pregap = 0;
 469                 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
 470         }
 471
 472         if( cdr.Play == TRUE ) {
 473                 temp_cur[0] = cdr.SetSectorPlay[0];
 474                 temp_cur[1] = cdr.SetSectorPlay[1];
 475                 temp_cur[2] = cdr.SetSectorPlay[2];
 476         } else {
 477                 temp_cur[0] = btoi( cdr.Prev[0] );
 478                 temp_cur[1] = btoi( cdr.Prev[1] );
 479                 temp_cur[2] = btoi( cdr.Prev[2] );
 480         }
 481
 482         fake_subq_real[0] = temp_cur[0];
 483         fake_subq_real[1] = temp_cur[1];
 484         fake_subq_real[2] = temp_cur[2];
 485
 486         temp_next[0] = cdr.ResultTD[2];
 487         temp_next[1] = cdr.ResultTD[1];
 488         temp_next[2] = cdr.ResultTD[0];
 489
 490
 491         // flag- next track
 492         if( msf2sec(temp_cur) >= msf2sec( temp_next )-pregap ) {
 493                 fake_subq_change = 1;
 494
 495                 cdr.CurTrack++;
 496
 497                 // end cd
 498                 if( pregap == 0 ) StopCdda();
 499         }
 500
 501         //////////////////////////////////////////////////
 502         //////////////////////////////////////////////////
 503
 504         // repair
 505         if( cdr.CurTrack <= cdr.ResultTN[1] ) {
 506                 if( CDR_getTD(cdr.CurTrack, cdr.ResultTD) == -1 ) return;
 507         } else {
 508                 // last track - cd size
 509                 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
 510         }
 511
 512         temp_start[0] = cdr.ResultTD[2];
 513         temp_start[1] = cdr.ResultTD[1];
 514         temp_start[2] = cdr.ResultTD[0];
 515
 516
 517 #ifdef CDR_LOG
 518         CDR_LOG( "CDDA FAKE SUB - %d:%d:%d / %d:%d:%d / %d:%d:%d\n",
 519                 temp_cur[0], temp_cur[1], temp_cur[2],
 520                 temp_start[0], temp_start[1], temp_start[2],
 521                 temp_next[0], temp_next[1], temp_next[2]);
 522 #endif
 523
 524
 525
 526         // local time - pregap / real
 527         diff = msf2sec(temp_cur) - msf2sec( temp_start );
 528         if( diff < 0 ) {
 529                 fake_subq_index = 0;
 530
 531                 sec2msf( -diff, fake_subq_local );
 532         } else {
 533                 fake_subq_index = 1;
 534
 535                 sec2msf( diff, fake_subq_local );
 536         }
 537 }
 538
 539
 540 static void cdrPlayInterrupt_Autopause()
 541 {
 542         struct SubQ *subq = (struct SubQ *)CDR_getBufferSub();
 543         int track_changed = 0;
 544         if (subq != NULL ) {
 545                 // update subq
 546                 ReadTrack( cdr.SetSectorPlay );
 547
 548 #ifdef CDR_LOG
 549                 CDR_LOG( "CDDA SUB - %X:%X:%X\n",
 550                         subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
 551 #endif
 552
 553                 /*
 554                 CDDA Autopause
 555
 556                 Silhouette Mirage ($3)
 557                 Tomb Raider 1 ($7)
 558                 */
 559
 560                 if( cdr.CurTrack + 1 == btoi( subq->TrackNumber ) )
 561                         track_changed = 1;
 562         } else {
 563                 Create_Fake_Subq();
 564 #ifdef CDR_LOG___0
 565                 CDR_LOG( "CDDA FAKE SUB - %d:%d:%d\n",
 566                         fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
 567 #endif
 568
 569                 track_changed = fake_subq_change;
 570                 fake_subq_change = 0;
 571         }
 572
 573         if ((cdr.Mode & MODE_AUTOPAUSE) && track_changed) {
 574 #ifdef CDR_LOG
 575                 CDR_LOG( "CDDA STOP\n" );
 576 #endif
 577
 578                 // Magic the Gathering
 579                 // - looping territory cdda
 580
 581                 // ...?
 582                 //cdr.ResultReady = 1;
 583                 //cdr.Stat = DataReady;
 584                 cdr.Stat = DataEnd;
 585                 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
 586
 587                 StopCdda();
 588         }
 589         if (cdr.Mode & MODE_REPORT) {
 590                 if (subq != NULL) {
 591 #ifdef CDR_LOG
 592                         CDR_LOG( "REPPLAY SUB - %X:%X:%X\n",
 593                                 subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
 594 #endif
 595                         cdr.CurTrack = btoi( subq->TrackNumber );
 596
 597                         if (subq->AbsoluteAddress[2] & 0xf)
 598                                 return;
 599
 600                         cdr.Result[0] = cdr.StatP;
 601                         // BIOS CD Player: data already BCD format
 602                         cdr.Result[1] = subq->TrackNumber;
 603                         cdr.Result[2] = subq->IndexNumber;
 604
 605                         cdr.Result[3] = subq->AbsoluteAddress[0];
 606                         cdr.Result[4] = subq->AbsoluteAddress[1];
 607                         cdr.Result[5] = subq->AbsoluteAddress[2];
 608                 } else {
 609 #ifdef CDR_LOG___0
 610                         CDR_LOG( "REPPLAY FAKE - %d:%d:%d\n",
 611                                 fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
 612 #endif
 613
 614                         if (fake_subq_real[2] & 0xf)
 615                                 return;
 616
 617                         cdr.Result[0] = cdr.StatP;
 618                         // track # / index #
 619                         cdr.Result[1] = itob(cdr.CurTrack);
 620                         cdr.Result[2] = itob(fake_subq_index);
 621                         // absolute
 622                         cdr.Result[3] = itob( fake_subq_real[0] );
 623                         cdr.Result[4] = itob( fake_subq_real[1] );
 624                         cdr.Result[5] = itob( fake_subq_real[2] );
 625                 }
 626
 627                 // Rayman: Logo freeze (resultready + dataready)
 628                 cdr.ResultReady = 1;
 629                 cdr.Stat = DataReady;
 630
 631                 SetResultSize(8);
 632                 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
 633         }
 634 }
 635
 636 void cdrPlayInterrupt()
 637 {
 638         if( !cdr.Play ) return;
 639
 640 #ifdef CDR_LOG
 641         CDR_LOG( "CDDA - %d:%d:%d\n",
 642                 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
 643 #endif
 644         CDRPLAY_INT( cdReadTime );
 645
 646         if (!cdr.Irq && !cdr.Stat && (cdr.Mode & MODE_CDDA) && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
 647                 cdrPlayInterrupt_Autopause();
 648
 649         cdr.SetSectorPlay[2]++;
 650         if (cdr.SetSectorPlay[2] == 75) {
 651                 cdr.SetSectorPlay[2] = 0;
 652                 cdr.SetSectorPlay[1]++;
 653                 if (cdr.SetSectorPlay[1] == 60) {
 654                         cdr.SetSectorPlay[1] = 0;
 655                         cdr.SetSectorPlay[0]++;
 656                 }
 657         }
 658
 659         //Check_Shell(0);
 660 }
 661
 662 void cdrInterrupt() {
 663         int i;
 664         unsigned char Irq = cdr.Irq;
 665         struct SubQ *subq;
 666
 667         // Reschedule IRQ
 668         if (cdr.Stat) {
 669                 CDR_INT( 0x100 );
 670                 return;
 671         }
 672
 673         cdr.Irq = 0xff;
 674         cdr.Ctrl &= ~0x80;
 675
 676         switch (Irq) {
 677                 case CdlSync:
 678                         SetResultSize(1);
 679                         cdr.StatP |= STATUS_ROTATING;
 680                         cdr.Result[0] = cdr.StatP;
 681                         cdr.Stat = Acknowledge;
 682                         break;
 683
 684                 case CdlNop:
 685                         SetResultSize(1);
 686                         cdr.Result[0] = cdr.StatP;
 687                         cdr.Stat = Acknowledge;
 688
 689                         if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
 690                         break;
 691
 692                 case CdlSetloc:
 693                         cdr.CmdProcess = 0;
 694                         SetResultSize(1);
 695                         cdr.StatP |= STATUS_ROTATING;
 696                         cdr.Result[0] = cdr.StatP;
 697                         cdr.Stat = Acknowledge;
 698                         break;
 699
 700                 case CdlPlay:
 701                         fake_subq_change = 0;
 702
 703                         if( cdr.Seeked == FALSE ) {
 704                                 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
 705                                 cdr.Seeked = TRUE;
 706                         }
 707
 708                         /*
 709                         Rayman: detect track changes
 710                         - fixes logo freeze
 711
 712                         Twisted Metal 2: skip PREGAP + starting accurate SubQ
 713                         - plays tracks without retry play
 714
 715                         Wild 9: skip PREGAP + starting accurate SubQ
 716                         - plays tracks without retry play
 717                         */
 718                         /* unneeded with correct cdriso?
 719                         Set_Track();
 720                         */
 721                         Find_CurTrack();
 722                         ReadTrack( cdr.SetSectorPlay );
 723
 724                         // GameShark CD Player: Calls 2x + Play 2x
 725                         if( cdr.FastBackward || cdr.FastForward ) {
 726                                 if( cdr.FastForward ) cdr.FastForward--;
 727                                 if( cdr.FastBackward ) cdr.FastBackward--;
 728
 729                                 if( cdr.FastBackward == 0 && cdr.FastForward == 0 ) {
 730                                         if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
 731                                                 cdr.SetSectorPlay[0] = stat.Time[0];
 732                                                 cdr.SetSectorPlay[1] = stat.Time[1];
 733                                                 cdr.SetSectorPlay[2] = stat.Time[2];
 734                                         }
 735                                 }
 736                         }
 737
 738
 739                         if (!Config.Cdda) {
 740                                 // BIOS CD Player
 741                                 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
 742
 743                                 // GameShark CD Player: Resume play
 744                                 if( cdr.ParamC == 0 ) {
 745 #ifdef CDR_LOG___0
 746                                         CDR_LOG( "PLAY Resume @ %d:%d:%d\n",
 747                                                 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
 748 #endif
 749
 750                                         //CDR_play( cdr.SetSectorPlay );
 751                                 }
 752                                 else
 753                                 {
 754                                         // BIOS CD Player: Resume play
 755                                         if( cdr.Param[0] == 0 ) {
 756 #ifdef CDR_LOG___0
 757                                                 CDR_LOG( "PLAY Resume T0 @ %d:%d:%d\n",
 758                                                         cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
 759 #endif
 760
 761                                                 //CDR_play( cdr.SetSectorPlay );
 762                                         }
 763                                         else {
 764 #ifdef CDR_LOG___0
 765                                                 CDR_LOG( "PLAY Resume Td @ %d:%d:%d\n",
 766                                                         cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
 767 #endif
 768
 769                                                 // BIOS CD Player: Allow track replaying
 770                                                 StopCdda();
 771
 772
 773                                                 cdr.CurTrack = btoi( cdr.Param[0] );
 774
 775                                                 if (CDR_getTN(cdr.ResultTN) != -1) {
 776                                                         // check last track
 777                                                         if (cdr.CurTrack > cdr.ResultTN[1])
 778                                                                 cdr.CurTrack = cdr.ResultTN[1];
 779
 780                                                         if (CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD) != -1) {
 781                                                                 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
 782                                                                 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
 783                                                                 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
 784
 785                                                                 // reset data
 786                                                                 Set_Track();
 787                                                                 Find_CurTrack();
 788                                                                 ReadTrack( cdr.SetSectorPlay );
 789
 790                                                                 //CDR_play(cdr.SetSectorPlay);
 791                                                         }
 792                                                 }
 793                                         }
 794                                 }
 795                         }
 796
 797
 798                         // Vib Ribbon: gameplay checks flag
 799                         cdr.StatP &= ~STATUS_SEEK;
 800
 801
 802                         cdr.CmdProcess = 0;
 803                         SetResultSize(1);
 804                         cdr.StatP |= STATUS_ROTATING;
 805                         cdr.Result[0] = cdr.StatP;
 806                         cdr.Stat = Acknowledge;
 807
 808                         cdr.StatP |= STATUS_PLAY;
 809
 810
 811                         // BIOS player - set flag again
 812                         cdr.Play = TRUE;
 813
 814                         CDRPLAY_INT( cdReadTime );
 815                         break;
 816
 817                 case CdlForward:
 818                         cdr.CmdProcess = 0;
 819                         SetResultSize(1);
 820                         cdr.StatP |= STATUS_ROTATING;
 821                         cdr.Result[0] = cdr.StatP;
 822                         cdr.Stat = Complete;
 823
 824
 825                         // GameShark CD Player: Calls 2x + Play 2x
 826                         if( cdr.FastForward == 0 ) cdr.FastForward = 2;
 827                         else cdr.FastForward++;
 828
 829                         cdr.FastBackward = 0;
 830                         break;
 831
 832                 case CdlBackward:
 833                         cdr.CmdProcess = 0;
 834                         SetResultSize(1);
 835                         cdr.StatP |= STATUS_ROTATING;
 836                         cdr.Result[0] = cdr.StatP;
 837                         cdr.Stat = Complete;
 838
 839
 840                         // GameShark CD Player: Calls 2x + Play 2x
 841                         if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
 842                         else cdr.FastBackward++;
 843
 844                         cdr.FastForward = 0;
 845                         break;
 846
 847                 case CdlStandby:
 848                         cdr.CmdProcess = 0;
 849                         SetResultSize(1);
 850                         cdr.StatP |= STATUS_ROTATING;
 851                         cdr.Result[0] = cdr.StatP;
 852                         cdr.Stat = Complete;
 853                         break;
 854
 855                 case CdlStop:
 856                         cdr.CmdProcess = 0;
 857                         SetResultSize(1);
 858                         cdr.StatP &= ~STATUS_ROTATING;
 859                         cdr.Result[0] = cdr.StatP;
 860                         cdr.Stat = Complete;
 861 //                      cdr.Stat = Acknowledge;
 862
 863                         if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
 864                         break;
 865
 866                 case CdlPause:
 867                         SetResultSize(1);
 868                         cdr.Result[0] = cdr.StatP;
 869                         cdr.Stat = Acknowledge;
 870
 871                         /*
 872                         Gundam Battle Assault 2: much slower (*)
 873                         - Fixes boot, gameplay
 874
 875                         Hokuto no Ken 2: slower
 876                         - Fixes intro + subtitles
 877
 878                         InuYasha - Feudal Fairy Tale: slower
 879                         - Fixes battles
 880                         */
 881                         AddIrqQueue(CdlPause + 0x20, cdReadTime * 3);
 882                         cdr.Ctrl |= 0x80;
 883                         break;
 884
 885                 case CdlPause + 0x20:
 886                         SetResultSize(1);
 887                         cdr.StatP &= ~STATUS_READ;
 888                         cdr.StatP |= STATUS_ROTATING;
 889                         cdr.Result[0] = cdr.StatP;
 890                         cdr.Stat = Complete;
 891                         break;
 892
 893                 case CdlInit:
 894                         SetResultSize(1);
 895                         cdr.StatP = STATUS_ROTATING;
 896                         cdr.Result[0] = cdr.StatP;
 897                         cdr.Stat = Acknowledge;
 898 //                      if (!cdr.Init) {
 899                                 AddIrqQueue(CdlInit + 0x20, 0x800);
 900 //                      }
 901                 break;
 902
 903                 case CdlInit + 0x20:
 904                         SetResultSize(1);
 905                         cdr.Result[0] = cdr.StatP;
 906                         cdr.Stat = Complete;
 907                         cdr.Init = 1;
 908                         break;
 909
 910                 case CdlMute:
 911                         SetResultSize(1);
 912                         cdr.StatP |= STATUS_ROTATING;
 913                         cdr.Result[0] = cdr.StatP;
 914                         cdr.Stat = Acknowledge;
 915                         break;
 916
 917                 case CdlDemute:
 918                         SetResultSize(1);
 919                         cdr.StatP |= STATUS_ROTATING;
 920                         cdr.Result[0] = cdr.StatP;
 921                         cdr.Stat = Acknowledge;
 922                         break;
 923
 924                 case CdlSetfilter:
 925                         SetResultSize(1);
 926                         cdr.StatP |= STATUS_ROTATING;
 927                         cdr.Result[0] = cdr.StatP;
 928                         cdr.Stat = Acknowledge;
 929                         break;
 930
 931                 case CdlSetmode:
 932                         SetResultSize(1);
 933                         cdr.StatP |= STATUS_ROTATING;
 934                         cdr.Result[0] = cdr.StatP;
 935                         cdr.Stat = Acknowledge;
 936                         break;
 937
 938                 case CdlGetmode:
 939                         SetResultSize(6);
 940                         cdr.StatP |= STATUS_ROTATING;
 941                         cdr.Result[0] = cdr.StatP;
 942                         cdr.Result[1] = cdr.Mode;
 943                         cdr.Result[2] = cdr.File;
 944                         cdr.Result[3] = cdr.Channel;
 945                         cdr.Result[4] = 0;
 946                         cdr.Result[5] = 0;
 947                         cdr.Stat = Acknowledge;
 948                         break;
 949
 950                 case CdlGetlocL:
 951                         SetResultSize(8);
 952                         for (i = 0; i < 8; i++)
 953                                 cdr.Result[i] = cdr.Transfer[i];
 954                         cdr.Stat = Acknowledge;
 955                         break;
 956
 957                 case CdlGetlocP:
 958                         // GameShark CDX CD Player: uses 17 bytes output (wraps around)
 959                         SetResultSize(17);
 960                         memset( cdr.Result, 0, 16 );
 961
 962                         subq = (struct SubQ *)CDR_getBufferSub();
 963
 964                         if (subq != NULL) {
 965                                 if( cdr.Play && (cdr.Mode & MODE_CDDA) && !(cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)) )
 966                                         // update subq
 967                                         ReadTrack( cdr.SetSectorPlay );
 968
 969                                 cdr.Result[0] = subq->TrackNumber;
 970                                 cdr.Result[1] = subq->IndexNumber;
 971                                 memcpy(cdr.Result + 2, subq->TrackRelativeAddress, 3);
 972                                 memcpy(cdr.Result + 5, subq->AbsoluteAddress, 3);
 973
 974
 975                                 // subQ integrity check - data only (skip audio)
 976                                 if( subq->TrackNumber == 1 && stat.Type == 0x01 ) {
 977                                 if (calcCrc((u8 *)subq + 12, 10) != (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
 978                                         memset(cdr.Result + 2, 0, 3 + 3); // CRC wrong, wipe out time data
 979                                 }
 980                                 }
 981                         } else {
 982                                 if( cdr.Play == FALSE || !(cdr.Mode & MODE_CDDA) || !(cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)) )
 983                                         Create_Fake_Subq();
 984
 985
 986                                 // track # / index #
 987                                 cdr.Result[0] = itob(cdr.CurTrack);
 988                                 cdr.Result[1] = itob(fake_subq_index);
 989
 990                                 // local
 991                                 cdr.Result[2] = itob( fake_subq_local[0] );
 992                                 cdr.Result[3] = itob( fake_subq_local[1] );
 993                                 cdr.Result[4] = itob( fake_subq_local[2] );
 994
 995                                 // absolute
 996                                 cdr.Result[5] = itob( fake_subq_real[0] );
 997                                 cdr.Result[6] = itob( fake_subq_real[1] );
 998                                 cdr.Result[7] = itob( fake_subq_real[2] );
 999                         }
1000
1001                         // redump.org - wipe time
1002                         if( !cdr.Play && CheckSBI(cdr.Result+5) ) {
1003                                 memset( cdr.Result+2, 0, 6 );
1004                         }
1005
1006                         cdr.Stat = Acknowledge;
1007                         break;
1008
1009                 case CdlGetTN:
1010                         // 5-Star Racing: don't stop CDDA
1011                         //
1012                         // Vib Ribbon: CD swap
1013                         StopReading();
1014
1015                         cdr.CmdProcess = 0;
1016                         SetResultSize(3);
1017                         cdr.StatP |= STATUS_ROTATING;
1018                         cdr.Result[0] = cdr.StatP;
1019                         if (CDR_getTN(cdr.ResultTN) == -1) {
1020                                 cdr.Stat = DiskError;
1021                                 cdr.Result[0] |= STATUS_ERROR;
1022                         } else {
1023                                 cdr.Stat = Acknowledge;
1024                                 cdr.Result[1] = itob(cdr.ResultTN[0]);
1025                                 cdr.Result[2] = itob(cdr.ResultTN[1]);
1026                         }
1027                         break;
1028
1029                 case CdlGetTD:
1030                         cdr.CmdProcess = 0;
1031                         cdr.Track = btoi(cdr.Param[0]);
1032                         SetResultSize(4);
1033                         cdr.StatP |= STATUS_ROTATING;
1034                         if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
1035                                 cdr.Stat = DiskError;
1036                                 cdr.Result[0] |= STATUS_ERROR;
1037                         } else {
1038                                 cdr.Stat = Acknowledge;
1039                                 cdr.Result[0] = cdr.StatP;
1040                                 cdr.Result[1] = itob(cdr.ResultTD[2]);
1041                                 cdr.Result[2] = itob(cdr.ResultTD[1]);
1042                                 cdr.Result[3] = itob(cdr.ResultTD[0]);
1043                         }
1044                         break;
1045
1046                 case CdlSeekL:
1047                         SetResultSize(1);
1048                         cdr.StatP |= STATUS_ROTATING;
1049                         cdr.Result[0] = cdr.StatP;
1050                         cdr.StatP |= STATUS_SEEK;
1051                         cdr.Stat = Acknowledge;
1052
1053                         /*
1054                         Crusaders of Might and Magic = 0.5x-4x
1055                         - fix cutscene speech start
1056
1057                         Eggs of Steel = 2x-?
1058                         - fix new game
1059
1060                         Medievil = ?-4x
1061                         - fix cutscene speech
1062
1063                         Rockman X5 = 0.5-4x
1064                         - fix capcom logo
1065                         */
1066                         AddIrqQueue(CdlSeekL + 0x20, cdReadTime * 4);
1067                         break;
1068
1069                 case CdlSeekL + 0x20:
1070                         SetResultSize(1);
1071                         cdr.StatP |= STATUS_ROTATING;
1072                         cdr.StatP &= ~STATUS_SEEK;
1073                         cdr.Result[0] = cdr.StatP;
1074                         cdr.Seeked = TRUE;
1075                         cdr.Stat = Complete;
1076
1077
1078                         // Mega Man Legends 2: must update read cursor for getlocp
1079                         ReadTrack( cdr.SetSector );
1080                         break;
1081
1082                 case CdlSeekP:
1083                         SetResultSize(1);
1084                         cdr.StatP |= STATUS_ROTATING;
1085                         cdr.Result[0] = cdr.StatP;
1086                         cdr.StatP |= STATUS_SEEK;
1087                         cdr.Stat = Acknowledge;
1088                         AddIrqQueue(CdlSeekP + 0x20, cdReadTime * 1);
1089                         break;
1090
1091                 case CdlSeekP + 0x20:
1092                         SetResultSize(1);
1093                         cdr.StatP |= STATUS_ROTATING;
1094                         cdr.StatP &= ~STATUS_SEEK;
1095                         cdr.Result[0] = cdr.StatP;
1096                         cdr.Stat = Complete;
1097                         cdr.Seeked = TRUE;
1098
1099                         // GameShark Music Player
1100                         memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
1101
1102                         // Tomb Raider 2: must update read cursor for getlocp
1103                         Find_CurTrack();
1104                         ReadTrack( cdr.SetSectorPlay );
1105                         break;
1106
1107                 case CdlTest:
1108                         cdr.Stat = Acknowledge;
1109                         switch (cdr.Param[0]) {
1110                                 case 0x20: // System Controller ROM Version
1111                                         SetResultSize(4);
1112                                         memcpy(cdr.Result, Test20, 4);
1113                                         break;
1114                                 case 0x22:
1115                                         SetResultSize(8);
1116                                         memcpy(cdr.Result, Test22, 4);
1117                                         break;
1118                                 case 0x23: case 0x24:
1119                                         SetResultSize(8);
1120                                         memcpy(cdr.Result, Test23, 4);
1121                                         break;
1122                         }
1123                         break;
1124
1125                 case CdlID:
1126                         SetResultSize(1);
1127                         cdr.StatP |= STATUS_ROTATING;
1128                         cdr.Result[0] = cdr.StatP;
1129                         cdr.Stat = Acknowledge;
1130                         AddIrqQueue(CdlID + 0x20, 0x800);
1131                         break;
1132
1133                 case CdlID + 0x20:
1134                         SetResultSize(8);
1135
1136                         if (CDR_getStatus(&stat) == -1) {
1137                                 cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
1138                                 cdr.Result[1] = 0x80; // 0x80 leads to the menu in the bios, else loads CD
1139                         }
1140                         else {
1141                                 if (stat.Type == 2) {
1142                                         // Music CD
1143                                         cdr.Result[0] = 0x08;
1144                                         cdr.Result[1] = 0x10;
1145
1146                                         cdr.Result[1] |= 0x80;
1147                                 }
1148                                 else {
1149                                         // Data CD
1150                                         if (CdromId[0] == '\0') {
1151                                                 cdr.Result[0] = 0x00;
1152                                                 cdr.Result[1] = 0x80;
1153                                         }
1154                                         else {
1155                                                 cdr.Result[0] = 0x08;
1156                                                 cdr.Result[1] = 0x00;
1157                                         }
1158                                 }
1159                         }
1160
1161                         cdr.Result[2] = 0x00;
1162                         cdr.Result[3] = 0x00;
1163                         strncpy((char *)&cdr.Result[4], "PCSX", 4);
1164                         cdr.Stat = Complete;
1165                         break;
1166
1167                 case CdlReset:
1168                         SetResultSize(1);
1169                         cdr.StatP = STATUS_ROTATING;
1170                         cdr.Result[0] = cdr.StatP;
1171                         cdr.Stat = Acknowledge;
1172                         break;
1173
1174                 case CdlReadT:
1175                         SetResultSize(1);
1176                         cdr.StatP |= STATUS_ROTATING;
1177                         cdr.Result[0] = cdr.StatP;
1178                         cdr.Stat = Acknowledge;
1179                         AddIrqQueue(CdlReadT + 0x20, 0x800);
1180                         break;
1181
1182                 case CdlReadT + 0x20:
1183                         SetResultSize(1);
1184                         cdr.StatP |= STATUS_ROTATING;
1185                         cdr.Result[0] = cdr.StatP;
1186                         cdr.Stat = Complete;
1187                         break;
1188
1189                 case CdlReadToc:
1190                         SetResultSize(1);
1191                         cdr.StatP |= STATUS_ROTATING;
1192                         cdr.Result[0] = cdr.StatP;
1193                         cdr.Stat = Acknowledge;
1194                         AddIrqQueue(CdlReadToc + 0x20, 0x800);
1195                         break;
1196
1197                 case CdlReadToc + 0x20:
1198                         SetResultSize(1);
1199                         cdr.StatP |= STATUS_ROTATING;
1200                         cdr.Result[0] = cdr.StatP;
1201                         cdr.Stat = Complete;
1202                         break;
1203
1204                 case AUTOPAUSE:
1205                         cdr.OCUP = 0;
1206 /*                      SetResultSize(1);
1207                         StopCdda();
1208                         StopReading();
1209                         cdr.OCUP = 0;
1210                         cdr.StatP&=~0x20;
1211                         cdr.StatP|= 0x2;
1212                         cdr.Result[0] = cdr.StatP;
1213                         cdr.Stat = DataEnd;
1214 */                      AddIrqQueue(CdlPause, 0x800);
1215                         break;
1216
1217                 case READ_ACK:
1218                         if (!cdr.Reading) return;
1219
1220
1221                         // Fighting Force 2 - update subq time immediately
1222                         // - fixes new game
1223                         ReadTrack( cdr.SetSector );
1224
1225
1226                         // Crusaders of Might and Magic - update getlocl now
1227                         // - fixes cutscene speech
1228                         {
1229                                 u8 *buf = CDR_getBuffer();
1230                                 if (buf != NULL)
1231                                         memcpy(cdr.Transfer, buf, 8);
1232                         }
1233
1234
1235                         /*
1236                         Duke Nukem: Land of the Babes - seek then delay read for one frame
1237                         - fixes cutscenes
1238                         C-12 - Final Resistance - doesn't like seek
1239                         */
1240
1241                         if (!cdr.Seeked) {
1242                                 cdr.Seeked = TRUE;
1243
1244                                 cdr.StatP |= STATUS_SEEK;
1245                                 cdr.StatP &= ~STATUS_READ;
1246
1247                                 // Crusaders of Might and Magic - use short time
1248                                 // - fix cutscene speech (startup)
1249
1250                                 // ??? - use more accurate seek time later
1251                                 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1252                         } else {
1253                                 cdr.StatP |= STATUS_READ;
1254                                 cdr.StatP &= ~STATUS_SEEK;
1255
1256                                 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1257                         }
1258
1259                         SetResultSize(1);
1260                         cdr.StatP |= STATUS_ROTATING;
1261                         cdr.Result[0] = cdr.StatP;
1262                         cdr.Stat = Acknowledge;
1263                         break;
1264
1265                 case 0xff:
1266                         return;
1267
1268                 default:
1269                         cdr.Stat = Complete;
1270                         break;
1271         }
1272
1273         Check_Shell( Irq );
1274
1275         cdr.ParamP = 0;
1276         cdr.ParamC = 0;
1277
1278         if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18) {
1279                 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1280         }
1281
1282 #ifdef CDR_LOG
1283         CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq);
1284 #endif
1285 }
1286
1287 void cdrReadInterrupt() {
1288         u8 *buf;
1289
1290         if (!cdr.Reading)
1291                 return;
1292
1293         if (cdr.Irq || cdr.Stat) {
1294                 CDREAD_INT(0x100);
1295                 return;
1296         }
1297
1298 #ifdef CDR_LOG
1299         CDR_LOG("cdrReadInterrupt() Log: KEY END");
1300 #endif
1301
1302         cdr.OCUP = 1;
1303         SetResultSize(1);
1304         cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1305         cdr.StatP &= ~STATUS_SEEK;
1306         cdr.Result[0] = cdr.StatP;
1307
1308         ReadTrack( cdr.SetSector );
1309
1310         buf = CDR_getBuffer();
1311         if (buf == NULL)
1312                 cdr.RErr = -1;
1313
1314         if (cdr.RErr == -1) {
1315 #ifdef CDR_LOG
1316                 fprintf(emuLog, "cdrReadInterrupt() Log: err\n");
1317 #endif
1318                 memset(cdr.Transfer, 0, DATA_SIZE);
1319                 cdr.Stat = DiskError;
1320                 cdr.Result[0] |= STATUS_ERROR;
1321                 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1322                 return;
1323         }
1324
1325         memcpy(cdr.Transfer, buf, DATA_SIZE);
1326         CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1327
1328
1329 #ifdef CDR_LOG
1330         fprintf(emuLog, "cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1331 #endif
1332
1333         if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1334                 // Firemen 2: Multi-XA files - briefings, cutscenes
1335                 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1336                         cdr.File = cdr.Transfer[4 + 0];
1337                         cdr.Channel = cdr.Transfer[4 + 1];
1338                 }
1339
1340                 if ((cdr.Transfer[4 + 2] & 0x4) &&
1341                          (cdr.Transfer[4 + 1] == cdr.Channel) &&
1342                         (cdr.Transfer[4 + 0] == cdr.File)) {
1343                         int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1344
1345                         if (!ret) {
1346                                 // only handle attenuator basic channel switch for now
1347                                 if (cdr.Xa.stereo) {
1348                                         int i;
1349                                         if ((cdr.AttenuatorLeft[0] | cdr.AttenuatorLeft[1])
1350                                             && !(cdr.AttenuatorRight[0] | cdr.AttenuatorRight[1]))
1351                                         {
1352                                                 for (i = 0; i < cdr.Xa.nsamples; i++)
1353                                                         cdr.Xa.pcm[i*2 + 1] = cdr.Xa.pcm[i*2];
1354                                         }
1355                                         else if (!(cdr.AttenuatorLeft[0] | cdr.AttenuatorLeft[1])
1356                                             && (cdr.AttenuatorRight[0] | cdr.AttenuatorRight[1]))
1357                                         {
1358                                                 for (i = 0; i < cdr.Xa.nsamples; i++)
1359                                                         cdr.Xa.pcm[i*2] = cdr.Xa.pcm[i*2 + 1];
1360                                         }
1361                                 }
1362
1363                                 SPU_playADPCMchannel(&cdr.Xa);
1364                                 cdr.FirstSector = 0;
1365
1366 #if 0
1367                                 // Crash Team Racing: music, speech
1368                                 // - done using cdda decoded buffer (spu irq)
1369                                 // - don't do here
1370
1371                                 // signal ADPCM data ready
1372                                 psxHu32ref(0x1070) |= SWAP32((u32)0x200);
1373 #endif
1374                         }
1375                         else cdr.FirstSector = -1;
1376                 }
1377         }
1378
1379         cdr.SetSector[2]++;
1380         if (cdr.SetSector[2] == 75) {
1381                 cdr.SetSector[2] = 0;
1382                 cdr.SetSector[1]++;
1383                 if (cdr.SetSector[1] == 60) {
1384                         cdr.SetSector[1] = 0;
1385                         cdr.SetSector[0]++;
1386                 }
1387         }
1388
1389         cdr.Readed = 0;
1390
1391         // G-Police: Don't autopause ADPCM even if mode set (music)
1392         if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & MODE_AUTOPAUSE) &&
1393                         (cdr.Transfer[4 + 2] & 0x4) != 0x4 ) { // EOF
1394 #ifdef CDR_LOG
1395                 CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n");
1396 #endif
1397 //              AddIrqQueue(AUTOPAUSE, 0x2000);
1398                 AddIrqQueue(CdlPause, 0x2000);
1399         }
1400         else {
1401                 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1402         }
1403
1404         /*
1405         Croc 2: $40 - only FORM1 (*)
1406         Judge Dredd: $C8 - only FORM1 (*)
1407         Sim Theme Park - no adpcm at all (zero)
1408         */
1409
1410         if( (cdr.Mode & MODE_STRSND) == 0 || (cdr.Transfer[4+2] & 0x4) != 0x4 ) {
1411                 cdr.Stat = DataReady;
1412         } else {
1413                 // Breath of Fire 3 - fix inn sleeping
1414                 // Rockman X5 - no music restart problem
1415                 cdr.Stat = NoIntr;
1416         }
1417         psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1418
1419         Check_Shell(0);
1420 }
1421
1422 /*
1423 cdrRead0:
1424         bit 0 - 0 REG1 command send / 1 REG1 data read
1425         bit 1 - 0 data transfer finish / 1 data transfer ready/in progress
1426         bit 2 - unknown
1427         bit 3 - unknown
1428         bit 4 - unknown
1429         bit 5 - 1 result ready
1430         bit 6 - 1 dma ready
1431         bit 7 - 1 command being processed
1432 */
1433
1434 unsigned char cdrRead0(void) {
1435         if (cdr.ResultReady)
1436                 cdr.Ctrl |= 0x20;
1437         else
1438                 cdr.Ctrl &= ~0x20;
1439
1440         if (cdr.OCUP)
1441                 cdr.Ctrl |= 0x40;
1442 //  else
1443 //              cdr.Ctrl &= ~0x40;
1444
1445         // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1446         cdr.Ctrl |= 0x18;
1447
1448 #ifdef CDR_LOG
1449         CDR_LOG("cdrRead0() Log: CD0 Read: %x\n", cdr.Ctrl);
1450 #endif
1451
1452         return psxHu8(0x1800) = cdr.Ctrl;
1453 }
1454
1455 /*
1456 cdrWrite0:
1457         0 - to send a command / 1 - to get the result
1458 */
1459
1460 void cdrWrite0(unsigned char rt) {
1461 #ifdef CDR_LOG
1462         CDR_LOG("cdrWrite0() Log: CD0 write: %x\n", rt);
1463 #endif
1464         cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3);
1465 }
1466
1467 unsigned char cdrRead1(void) {
1468     if (cdr.ResultReady) { // && cdr.Ctrl & 0x1) {
1469                 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
1470                 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1471                 cdr.ResultP++;
1472                 if (cdr.ResultP == cdr.ResultC)
1473                         cdr.ResultReady = 0;
1474         } else {
1475                 psxHu8(0x1801) = 0;
1476         }
1477 #ifdef CDR_LOG
1478         CDR_LOG("cdrRead1() Log: CD1 Read: %x\n", psxHu8(0x1801));
1479 #endif
1480         return psxHu8(0x1801);
1481 }
1482
1483 void cdrWrite1(unsigned char rt) {
1484         char set_loc[3];
1485         int i;
1486
1487 #ifdef CDR_LOG
1488         CDR_LOG("cdrWrite1() Log: CD1 write: %x (%s)\n", rt, CmdName[rt]);
1489 #endif
1490
1491
1492         // Tekken: CDXA fade-out
1493         if( (cdr.Ctrl & 3) == 3 ) {
1494                 cdr.AttenuatorRight[0] = rt;
1495         }
1496
1497
1498 //      psxHu8(0x1801) = rt;
1499         cdr.Cmd = rt;
1500         cdr.OCUP = 0;
1501
1502 #ifdef CDRCMD_DEBUG
1503         SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
1504         if (cdr.ParamC) {
1505                 SysPrintf(" Param[%d] = {", cdr.ParamC);
1506                 for (i = 0; i < cdr.ParamC; i++)
1507                         SysPrintf(" %x,", cdr.Param[i]);
1508                 SysPrintf("}\n");
1509         } else {
1510                 SysPrintf("\n");
1511         }
1512 #endif
1513
1514         if (cdr.Ctrl & 0x3) return;
1515
1516         cdr.ResultReady = 0;
1517
1518         switch (cdr.Cmd) {
1519         case CdlSync:
1520                 cdr.Ctrl |= 0x80;
1521                 cdr.Stat = NoIntr;
1522                 AddIrqQueue(cdr.Cmd, 0x800);
1523                 break;
1524
1525         case CdlNop:
1526                 cdr.Ctrl |= 0x80;
1527                 cdr.Stat = NoIntr;
1528
1529                 // Twisted Metal 3 - fix music
1530                 AddIrqQueue(cdr.Cmd, 0x800);
1531                 break;
1532
1533         case CdlSetloc:
1534                 StopReading();
1535                 for (i = 0; i < 3; i++)
1536                         set_loc[i] = btoi(cdr.Param[i]);
1537                 i = abs(msf2sec(cdr.SetSector) - msf2sec(set_loc));
1538                 if (i > 16)
1539                         cdr.Seeked = FALSE;
1540                 memcpy(cdr.SetSector, set_loc, 3);
1541                 cdr.SetSector[3] = 0;
1542
1543                 /*
1544                    if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) {
1545                  *(u32 *)cdr.SetSector = *(u32 *)cdr.SetSectorSeek;
1546                  }*/
1547
1548                 cdr.Ctrl |= 0x80;
1549                 cdr.Stat = NoIntr;
1550                 AddIrqQueue(cdr.Cmd, 0x800);
1551                 break;
1552
1553         case CdlPlay:
1554                 // Vib Ribbon: try same track again
1555                 StopCdda();
1556
1557                 if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
1558                         if (CDR_getTN(cdr.ResultTN) != -1) {
1559                                 if (cdr.CurTrack > cdr.ResultTN[1])
1560                                         cdr.CurTrack = cdr.ResultTN[1];
1561                                 if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
1562                                         int tmp = cdr.ResultTD[2];
1563                                         cdr.ResultTD[2] = cdr.ResultTD[0];
1564                                         cdr.ResultTD[0] = tmp;
1565                                         if (!Config.Cdda) CDR_play(cdr.ResultTD);
1566                                 }
1567                         }
1568                 } else if (!Config.Cdda) {
1569                         CDR_play(cdr.SetSector);
1570                 }
1571
1572                 // Vib Ribbon - decoded buffer IRQ for CDDA reading
1573                 // - fixes ribbon timing + music CD mode
1574                 //TODO?
1575                 //CDRDBUF_INT( PSXCLK / 44100 * 0x100 );
1576
1577
1578                 cdr.Play = TRUE;
1579
1580                 cdr.StatP |= STATUS_SEEK;
1581                 cdr.StatP &= ~STATUS_ROTATING;
1582
1583                 cdr.Ctrl |= 0x80;
1584                 cdr.Stat = NoIntr;
1585                 AddIrqQueue(cdr.Cmd, 0x800);
1586                 break;
1587
1588         case CdlForward:
1589                 //if (cdr.CurTrack < 0xaa)
1590                 //      cdr.CurTrack++;
1591                 cdr.Ctrl |= 0x80;
1592                 cdr.Stat = NoIntr;
1593                 AddIrqQueue(cdr.Cmd, 0x800);
1594                 break;
1595
1596         case CdlBackward:
1597                 //if (cdr.CurTrack > 1)
1598                 //cdr.CurTrack--;
1599                 cdr.Ctrl |= 0x80;
1600                 cdr.Stat = NoIntr;
1601                 AddIrqQueue(cdr.Cmd, 0x800);
1602                 break;
1603
1604         case CdlReadN:
1605                 cdr.Irq = 0;
1606                 StopReading();
1607                 cdr.Ctrl|= 0x80;
1608                 cdr.Stat = NoIntr;
1609                 StartReading(1, 0x800);
1610                 break;
1611
1612         case CdlStandby:
1613                 StopCdda();
1614                 StopReading();
1615                 cdr.Ctrl |= 0x80;
1616                 cdr.Stat = NoIntr;
1617                 AddIrqQueue(cdr.Cmd, 0x800);
1618                 break;
1619
1620         case CdlStop:
1621                 // GameShark CD Player: Reset CDDA to track start
1622                 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
1623                         cdr.SetSectorPlay[0] = stat.Time[0];
1624                         cdr.SetSectorPlay[1] = stat.Time[1];
1625                         cdr.SetSectorPlay[2] = stat.Time[2];
1626
1627                         Find_CurTrack();
1628
1629
1630                         // grab time for current track
1631                         CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
1632
1633                         cdr.SetSectorPlay[0] = cdr.ResultTD[2];
1634                         cdr.SetSectorPlay[1] = cdr.ResultTD[1];
1635                         cdr.SetSectorPlay[2] = cdr.ResultTD[0];
1636                 }
1637
1638                 StopCdda();
1639                 StopReading();
1640
1641                 cdr.Ctrl |= 0x80;
1642                 cdr.Stat = NoIntr;
1643                 AddIrqQueue(cdr.Cmd, 0x800);
1644                 break;
1645
1646         case CdlPause:
1647                 /*
1648                    GameShark CD Player: save time for resume
1649
1650                    Twisted Metal - World Tour: don't mix Setloc / CdlPlay cursors
1651                 */
1652
1653                 StopCdda();
1654                 StopReading();
1655                 cdr.Ctrl |= 0x80;
1656                 cdr.Stat = NoIntr;
1657
1658                 AddIrqQueue(cdr.Cmd, 0x800);
1659                 break;
1660
1661         case CdlReset:
1662         case CdlInit:
1663                 StopCdda();
1664                 StopReading();
1665                 cdr.Ctrl |= 0x80;
1666                 cdr.Stat = NoIntr;
1667                 AddIrqQueue(cdr.Cmd, 0x800);
1668                 break;
1669
1670         case CdlMute:
1671                 cdr.Muted = TRUE;
1672                 cdr.Ctrl |= 0x80;
1673                 cdr.Stat = NoIntr;
1674                 AddIrqQueue(cdr.Cmd, 0x800);
1675
1676                         // Duke Nukem - Time to Kill
1677                         // - do not directly set cd-xa volume
1678                         //SPU_writeRegister( H_CDLeft, 0x0000 );
1679                         //SPU_writeRegister( H_CDRight, 0x0000 );
1680                 break;
1681
1682         case CdlDemute:
1683                 cdr.Muted = FALSE;
1684                 cdr.Ctrl |= 0x80;
1685                 cdr.Stat = NoIntr;
1686                 AddIrqQueue(cdr.Cmd, 0x800);
1687
1688                         // Duke Nukem - Time to Kill
1689                         // - do not directly set cd-xa volume
1690                         //SPU_writeRegister( H_CDLeft, 0x7f00 );
1691                         //SPU_writeRegister( H_CDRight, 0x7f00 );
1692                 break;
1693
1694         case CdlSetfilter:
1695                 cdr.File = cdr.Param[0];
1696                 cdr.Channel = cdr.Param[1];
1697                 cdr.Ctrl |= 0x80;
1698                 cdr.Stat = NoIntr;
1699                 AddIrqQueue(cdr.Cmd, 0x800);
1700                 break;
1701
1702         case CdlSetmode:
1703 #ifdef CDR_LOG
1704                 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
1705 #endif
1706                 cdr.Mode = cdr.Param[0];
1707                 cdr.Ctrl |= 0x80;
1708                 cdr.Stat = NoIntr;
1709                 AddIrqQueue(cdr.Cmd, 0x800);
1710
1711                 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1712                 // - fixes choppy movie sound
1713                 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1714                         StopCdda();
1715                 break;
1716
1717         case CdlGetmode:
1718                 cdr.Ctrl |= 0x80;
1719                 cdr.Stat = NoIntr;
1720                 AddIrqQueue(cdr.Cmd, 0x800);
1721                 break;
1722
1723         case CdlGetlocL:
1724                 cdr.Ctrl |= 0x80;
1725                 cdr.Stat = NoIntr;
1726
1727                 // Crusaders of Might and Magic - cutscene speech
1728                 AddIrqQueue(cdr.Cmd, 0x800);
1729                 break;
1730
1731         case CdlGetlocP:
1732                 cdr.Ctrl |= 0x80;
1733                 cdr.Stat = NoIntr;
1734
1735                 // GameShark CDX / Lite Player: pretty narrow time window
1736                 // - doesn't always work due to time inprecision
1737                 //AddIrqQueue(cdr.Cmd, 0x28);
1738
1739                 // Tomb Raider 2 - cdda
1740                 //AddIrqQueue(cdr.Cmd, 0x40);
1741
1742                 // rearmed: the above works in pcsxr-svn, but breaks here
1743                 // (TOCA world touring cars), perhaps some other code is not merged yet
1744                 AddIrqQueue(cdr.Cmd, 0x1000);
1745                 break;
1746
1747         case CdlGetTN:
1748                 cdr.Ctrl |= 0x80;
1749                 cdr.Stat = NoIntr;
1750                 //AddIrqQueue(cdr.Cmd, 0x800);
1751
1752                 // GameShark CDX CD Player: very long time
1753                 AddIrqQueue(cdr.Cmd, 0x100000);
1754                 break;
1755
1756         case CdlGetTD:
1757                 cdr.Ctrl |= 0x80;
1758                 cdr.Stat = NoIntr;
1759                 AddIrqQueue(cdr.Cmd, 0x800);
1760                 break;
1761
1762         case CdlSeekL:
1763 //                      ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
1764                 cdr.Ctrl |= 0x80;
1765                 cdr.Stat = NoIntr;
1766                 AddIrqQueue(cdr.Cmd, 0x800);
1767
1768                 StopCdda();
1769                 StopReading();
1770
1771                 break;
1772
1773         case CdlSeekP:
1774 //              ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
1775                 cdr.Ctrl |= 0x80;
1776                 cdr.Stat = NoIntr;
1777
1778                 // Tomb Raider 2 - reset cdda
1779                 StopCdda();
1780                 StopReading();
1781
1782                 AddIrqQueue(cdr.Cmd, 0x800);
1783                 break;
1784
1785         // Destruction Derby: read TOC? GetTD after this
1786         case CdlReadT:
1787                 cdr.Ctrl |= 0x80;
1788                 cdr.Stat = NoIntr;
1789                 AddIrqQueue(cdr.Cmd, 0x800);
1790                 break;
1791
1792         case CdlTest:
1793                 cdr.Ctrl |= 0x80;
1794                 cdr.Stat = NoIntr;
1795                 AddIrqQueue(cdr.Cmd, 0x800);
1796                 break;
1797
1798         case CdlID:
1799                 cdr.Ctrl |= 0x80;
1800                 cdr.Stat = NoIntr;
1801                 AddIrqQueue(cdr.Cmd, 0x800);
1802                 break;
1803
1804         case CdlReadS:
1805                 cdr.Irq = 0;
1806                 StopReading();
1807                 cdr.Ctrl |= 0x80;
1808                 cdr.Stat = NoIntr;
1809                 StartReading(2, 0x800);
1810                 break;
1811
1812         case CdlReadToc:
1813                 cdr.Ctrl |= 0x80;
1814                 cdr.Stat = NoIntr;
1815                 AddIrqQueue(cdr.Cmd, 0x800);
1816                 break;
1817
1818         default:
1819                 cdr.ParamP = 0;
1820                 cdr.ParamC = 0;
1821 #ifdef CDR_LOG
1822                 CDR_LOG("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
1823 #endif
1824                 return;
1825         }
1826         if (cdr.Stat != NoIntr) {
1827                 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1828         }
1829 }
1830
1831 unsigned char cdrRead2(void) {
1832         unsigned char ret;
1833
1834         if (cdr.Readed == 0) {
1835                 ret = 0;
1836         } else {
1837                 ret = *pTransfer++;
1838         }
1839
1840 #ifdef CDR_LOG
1841         CDR_LOG("cdrRead2() Log: CD2 Read: %x\n", ret);
1842 #endif
1843         return ret;
1844 }
1845
1846 void cdrWrite2(unsigned char rt) {
1847 #ifdef CDR_LOG
1848         CDR_LOG("cdrWrite2() Log: CD2 write: %x\n", rt);
1849 #endif
1850
1851         // Tekken: CDXA fade-out
1852         if( (cdr.Ctrl & 3) == 2 ) {
1853                 cdr.AttenuatorLeft[0] = rt;
1854         }
1855         else if( (cdr.Ctrl & 3) == 3 ) {
1856                 cdr.AttenuatorRight[1] = rt;
1857         }
1858
1859
1860         if (cdr.Ctrl & 0x1) {
1861                 switch (rt) {
1862                         case 0x07:
1863                                 cdr.ParamP = 0;
1864                                 cdr.ParamC = 0;
1865                                 cdr.ResultReady = 1; //0;
1866                                 cdr.Ctrl &= ~3; //cdr.Ctrl = 0;
1867                                 break;
1868
1869                         default:
1870                                 cdr.Reg2 = rt;
1871                                 break;
1872                 }
1873         } else if (!(cdr.Ctrl & 0x3) && cdr.ParamP < 8) {
1874                 cdr.Param[cdr.ParamP++] = rt;
1875                 cdr.ParamC++;
1876         }
1877 }
1878
1879 unsigned char cdrRead3(void) {
1880         if (cdr.Stat) {
1881                 if (cdr.Ctrl & 0x1)
1882                         psxHu8(0x1803) = cdr.Stat | 0xE0;
1883                 else
1884                         psxHu8(0x1803) = 0xff;
1885         } else {
1886                 psxHu8(0x1803) = 0;
1887         }
1888 #ifdef CDR_LOG
1889         CDR_LOG("cdrRead3() Log: CD3 Read: %x\n", psxHu8(0x1803));
1890 #endif
1891         return psxHu8(0x1803);
1892 }
1893
1894 void cdrWrite3(unsigned char rt) {
1895 #ifdef CDR_LOG
1896         CDR_LOG("cdrWrite3() Log: CD3 write: %x\n", rt);
1897 #endif
1898
1899         // Tekken: CDXA fade-out
1900         if( (cdr.Ctrl & 3) == 2 ) {
1901                 cdr.AttenuatorLeft[1] = rt;
1902         }
1903         else if( (cdr.Ctrl & 3) == 3 && rt == 0x20 ) {
1904 #ifdef CDR_LOG
1905                 CDR_LOG( "CD-XA Volume: %X %X | %X %X\n",
1906                         cdr.AttenuatorLeft[0], cdr.AttenuatorLeft[1],
1907                         cdr.AttenuatorRight[0], cdr.AttenuatorRight[1] );
1908 #endif
1909         }
1910
1911
1912         // GameShark CDX CD Player: Irq timing mania
1913         if( rt == 0 &&
1914                         cdr.Irq != 0 && cdr.Irq != 0xff &&
1915                         cdr.ResultReady == 0 ) {
1916
1917                 // GS CDX: ~0x28 cycle timing - way too precise
1918                 if( cdr.Irq == CdlGetlocP ) {
1919                         cdrInterrupt();
1920
1921                         psxRegs.interrupt &= ~(1 << PSXINT_CDR);
1922                 }
1923         }
1924
1925
1926         if (rt == 0x07 && (cdr.Ctrl & 3) == 1) {
1927                 cdr.Stat = 0;
1928
1929                 if (cdr.Irq == 0xff) {
1930                         cdr.Irq = 0;
1931                         return;
1932                 }
1933
1934                 // XA streaming - incorrect timing because of this reschedule
1935                 // - Final Fantasy Tactics
1936                 // - various other games
1937
1938                 if (cdr.Reading && !cdr.ResultReady) {
1939                         int left = psxRegs.intCycle[PSXINT_CDREAD].sCycle + psxRegs.intCycle[PSXINT_CDREAD].cycle - psxRegs.cycle;
1940                         int time = (cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime;
1941                         if (Config.CdrReschedule != 2)
1942                         if (left < time / 2 || Config.CdrReschedule) { // rearmed guesswork hack
1943                                 //printf("-- resched %d -> %d\n", left, time);
1944                                 CDREAD_INT(time);
1945                         }
1946                 }
1947
1948                 return;
1949         }
1950
1951         if (rt == 0x80 && !(cdr.Ctrl & 0x3) && cdr.Readed == 0) {
1952                 cdr.Readed = 1;
1953                 pTransfer = cdr.Transfer;
1954
1955                 switch (cdr.Mode & 0x30) {
1956                         case MODE_SIZE_2328:
1957                         case 0x00:
1958                                 pTransfer += 12;
1959                                 break;
1960
1961                         case MODE_SIZE_2340:
1962                                 pTransfer += 0;
1963                                 break;
1964
1965                         default:
1966                                 break;
1967                 }
1968         }
1969 }
1970
1971 void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1972         u32 cdsize;
1973         int size;
1974         u8 *ptr;
1975
1976 #ifdef CDR_LOG
1977         CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1978 #endif
1979
1980         switch (chcr) {
1981                 case 0x11000000:
1982                 case 0x11400100:
1983                         if (cdr.Readed == 0) {
1984 #ifdef CDR_LOG
1985                                 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1986 #endif
1987                                 break;
1988                         }
1989
1990                         cdsize = (bcr & 0xffff) * 4;
1991
1992                         // Ape Escape: bcr = 0001 / 0000
1993                         // - fix boot
1994                         if( cdsize == 0 )
1995                         {
1996                                 switch (cdr.Mode & 0x30) {
1997                                         case 0x00: cdsize = 2048; break;
1998                                         case MODE_SIZE_2328: cdsize = 2328; break;
1999                                         case MODE_SIZE_2340: cdsize = 2340; break;
2000                                 }
2001                         }
2002
2003
2004                         ptr = (u8 *)PSXM(madr);
2005                         if (ptr == NULL) {
2006 #ifdef CPU_LOG
2007                                 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
2008 #endif
2009                                 break;
2010                         }
2011
2012                         /*
2013                         GS CDX: Enhancement CD crash
2014                         - Setloc 0:0:0
2015                         - CdlPlay
2016                         - Spams DMA3 and gets buffer overrun
2017                         */
2018                         size = CD_FRAMESIZE_RAW - (pTransfer - cdr.Transfer);
2019                         if (size > cdsize)
2020                                 size = cdsize;
2021                         if (size > 0)
2022                         {
2023                                 memcpy(ptr, pTransfer, size);
2024                         }
2025
2026                         psxCpu->Clear(madr, cdsize / 4);
2027                         pTransfer += cdsize;
2028
2029
2030                         // burst vs normal
2031                         if( chcr == 0x11400100 ) {
2032                                 CDRDMA_INT( (cdsize/4) / 4 );
2033                         }
2034                         else if( chcr == 0x11000000 ) {
2035                                 CDRDMA_INT( (cdsize/4) * 1 );
2036                         }
2037                         return;
2038
2039                 default:
2040 #ifdef CDR_LOG
2041                         CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
2042 #endif
2043                         break;
2044         }
2045
2046         HW_DMA3_CHCR &= SWAP32(~0x01000000);
2047         DMA_INTERRUPT(3);
2048 }
2049
2050 void cdrDmaInterrupt()
2051 {
2052         if (HW_DMA3_CHCR & SWAP32(0x01000000))
2053         {
2054                 HW_DMA3_CHCR &= SWAP32(~0x01000000);
2055                 DMA_INTERRUPT(3);
2056         }
2057 }
2058
2059 void cdrReset() {
2060         memset(&cdr, 0, sizeof(cdr));
2061         cdr.CurTrack = 1;
2062         cdr.File = 1;
2063         cdr.Channel = 1;
2064         pTransfer = cdr.Transfer;
2065
2066         // BIOS player - default values
2067         cdr.AttenuatorLeft[0] = 0x80;
2068         cdr.AttenuatorLeft[1] = 0x00;
2069         cdr.AttenuatorRight[0] = 0x80;
2070         cdr.AttenuatorRight[1] = 0x00;
2071 }
2072
2073 int cdrFreeze(gzFile f, int Mode) {
2074         u32 tmp;
2075
2076         if( Mode == 0 ) {
2077                 StopCdda();
2078         }
2079
2080         gzfreeze(&cdr, sizeof(cdr));
2081
2082         if (Mode == 1)
2083                 tmp = pTransfer - cdr.Transfer;
2084
2085         gzfreeze(&tmp, sizeof(tmp));
2086
2087         if (Mode == 0) {
2088                 pTransfer = cdr.Transfer + tmp;
2089
2090                 if (cdr.Play && !Config.Cdda)
2091                         CDR_play(cdr.SetSectorPlay);
2092         }
2093
2094         return 0;
2095 }
2096
2097 void LidInterrupt() {
2098         cdr.LidCheck = 0x20; // start checker
2099
2100         CDRLID_INT( cdReadTime * 3 );
2101
2102         // generate interrupt if none active - open or close
2103         if (cdr.Irq == 0 || cdr.Irq == 0xff) {
2104                 cdr.Ctrl |= 0x80;
2105                 cdr.Stat = NoIntr;
2106                 AddIrqQueue(CdlNop, 0x800);
2107         }
2108 }