1 /***************************************************************************
2 * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team *
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. *
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. *
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 ***************************************************************************/
21 * Handles all CD-ROM registers and functions.
30 /* CD-ROM magic numbers */
44 #define CdlSetfilter 13
54 #define CdlSetclock 23
55 #define CdlGetclock 24
65 #define REPPLAY_ACK 252
68 /* don't set 255, it's reserved */
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
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 };
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
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
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)
122 static struct CdrStat stat;
124 static unsigned int msf2sec(char *msf) {
125 return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
128 static void sec2msf(unsigned int s, char *msf) {
129 msf[0] = s / 75 / 60;
130 s = s - msf[0] * 75 * 60;
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); \
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); \
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); \
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); \
165 #define StartReading(type, eCycle) { \
166 cdr.Reading = type; \
167 cdr.FirstSector = 1; \
169 AddIrqQueue(READ_ACK, eCycle); \
172 #define StopReading() { \
175 psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
177 cdr.StatP &= ~STATUS_READ;\
180 #define StopCdda() { \
182 if (!Config.Cdda) CDR_stop(); \
183 cdr.StatP &= ~STATUS_PLAY; \
185 cdr.FastForward = 0; \
186 cdr.FastBackward = 0; \
187 /*SPU_registerCallback( SPUirq );*/ \
191 #define SetResultSize(size) { \
193 cdr.ResultC = size; \
194 cdr.ResultReady = 1; \
198 void cdrLidSeekInterrupt()
200 // turn back on checking
201 if( cdr.LidCheck == 0x10 )
206 // official lid close
207 else if( cdr.LidCheck == 0x30 )
210 cdr.StatP |= STATUS_ROTATING;
213 // GS CDX 3.3 - ~50 getlocp tries
214 CDRLID_INT( cdReadTime * 3 );
219 else if( cdr.LidCheck == 0x40 )
222 cdr.StatP &= ~STATUS_SHELLOPEN;
223 cdr.StatP &= ~STATUS_ROTATING;
226 // GS CDX 3.3 - ~50 getlocp tries
227 CDRLID_INT( cdReadTime * 3 );
232 else if( cdr.LidCheck == 0x50 )
234 // GameShark Lite: Start seeking ($42)
235 cdr.StatP |= STATUS_SEEK;
236 cdr.StatP |= STATUS_ROTATING;
237 cdr.StatP &= ~STATUS_ERROR;
240 CDRLID_INT( cdReadTime * 3 );
245 else if( cdr.LidCheck == 0x60 )
247 // GameShark Lite: Seek detection done ($02)
248 cdr.StatP &= ~STATUS_SEEK;
255 static void Check_Shell( int Irq )
257 // check case open/close
258 if (cdr.LidCheck > 0)
261 CDR_LOG( "LidCheck\n" );
264 // $20 = check lid state
265 if( cdr.LidCheck == 0x20 )
270 if (CDR_getStatus(&stat) != -1)
272 // BIOS hangs + BIOS error messages
273 //if (stat.Type == 0xff)
274 //cdr.Stat = DiskError;
277 if (stat.Status & STATUS_SHELLOPEN)
279 // Vib Ribbon: pre-CD swap
283 // GameShark Lite: Death if DiskError happens
285 // Vib Ribbon: Needs DiskError for CD swap
289 cdr.Stat = DiskError;
291 cdr.StatP |= STATUS_ERROR;
292 cdr.Result[0] |= STATUS_ERROR;
295 // GameShark Lite: Wants -exactly- $10
296 cdr.StatP |= STATUS_SHELLOPEN;
297 cdr.StatP &= ~STATUS_ROTATING;
300 CDRLID_INT( cdReadTime * 3 );
308 else if ( i & STATUS_SHELLOPEN )
310 cdr.StatP |= STATUS_ROTATING;
315 if( cdr.Stat == NoIntr )
316 cdr.Stat = Acknowledge;
318 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
321 // begin close-seek-ready cycle
322 CDRLID_INT( cdReadTime * 3 );
326 // GameShark Lite: Wants -exactly- $42, then $02
327 // GS CDX 3.3: Wants $11/$80, $13/$80, $01/$00
330 // case still closed - wait for recheck
333 CDRLID_INT( cdReadTime * 3 );
340 // GS CDX: clear all values but #1,#2
341 if( (cdr.LidCheck >= 0x30) || (cdr.StatP & STATUS_SHELLOPEN) )
344 memset( cdr.Result, 0, 16 );
346 cdr.Result[0] = cdr.StatP;
349 // GS CDX: special return value
350 if( cdr.StatP & STATUS_SHELLOPEN )
352 cdr.Result[1] = 0x80;
356 if( cdr.Stat == NoIntr )
357 cdr.Stat = Acknowledge;
359 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
365 void Find_CurTrack() {
368 if (CDR_getTN(cdr.ResultTN) != -1) {
371 for( lcv = 1; lcv <= cdr.ResultTN[1]; lcv++ ) {
372 if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
376 CDR_LOG( "curtrack %d %d %d | %d %d %d | %d\n",
377 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
378 cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
382 // find next track boundary - only need m:s accuracy
383 sect1 = cdr.SetSectorPlay[0] * 60 * 75 + cdr.SetSectorPlay[1] * 75;
384 sect2 = cdr.ResultTD[2] * 60 * 75 + cdr.ResultTD[1] * 75;
386 // Twisted Metal 4 - psx cdda pregap (2-sec)
387 // - fix in-game music
390 if( sect1 >= sect2 ) {
401 static void ReadTrack( u8 *time ) {
402 cdr.Prev[0] = itob( time[0] );
403 cdr.Prev[1] = itob( time[1] );
404 cdr.Prev[2] = itob( time[2] );
407 CDR_LOG("ReadTrack() Log: KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
409 cdr.RErr = CDR_readTrack(cdr.Prev);
413 void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
417 // Doom: Force rescheduling
425 if (CDR_getTN(cdr.ResultTN) != -1) {
428 for( lcv = 1; lcv < cdr.ResultTN[1]; lcv++ ) {
429 if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
431 CDR_LOG( "settrack %d %d %d | %d %d %d | %d\n",
432 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
433 cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
437 // check if time matches track start (only need min, sec accuracy)
439 if( cdr.SetSectorPlay[0] == cdr.ResultTD[2] &&
440 cdr.SetSectorPlay[1] == cdr.ResultTD[1] ) {
441 // skip pregap frames
442 if( cdr.SetSectorPlay[2] < cdr.ResultTD[0] )
443 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
447 else if( cdr.SetSectorPlay[0] < cdr.ResultTD[2] )
455 static u8 fake_subq_local[3], fake_subq_real[3], fake_subq_index, fake_subq_change;
456 static void Create_Fake_Subq()
458 u8 temp_cur[3], temp_next[3], temp_start[3], pregap;
461 if (CDR_getTN(cdr.ResultTN) == -1) return;
462 if( cdr.CurTrack+1 <= cdr.ResultTN[1] ) {
464 if( CDR_getTD(cdr.CurTrack+1, cdr.ResultTD) == -1 ) return;
466 // last track - cd size
468 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
471 if( cdr.Play == TRUE ) {
472 temp_cur[0] = cdr.SetSectorPlay[0];
473 temp_cur[1] = cdr.SetSectorPlay[1];
474 temp_cur[2] = cdr.SetSectorPlay[2];
476 temp_cur[0] = btoi( cdr.Prev[0] );
477 temp_cur[1] = btoi( cdr.Prev[1] );
478 temp_cur[2] = btoi( cdr.Prev[2] );
481 fake_subq_real[0] = temp_cur[0];
482 fake_subq_real[1] = temp_cur[1];
483 fake_subq_real[2] = temp_cur[2];
485 temp_next[0] = cdr.ResultTD[2];
486 temp_next[1] = cdr.ResultTD[1];
487 temp_next[2] = cdr.ResultTD[0];
491 if( msf2sec(temp_cur) >= msf2sec( temp_next )-pregap ) {
492 fake_subq_change = 1;
497 if( pregap == 0 ) StopCdda();
500 //////////////////////////////////////////////////
501 //////////////////////////////////////////////////
504 if( cdr.CurTrack <= cdr.ResultTN[1] ) {
505 if( CDR_getTD(cdr.CurTrack, cdr.ResultTD) == -1 ) return;
507 // last track - cd size
508 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
511 temp_start[0] = cdr.ResultTD[2];
512 temp_start[1] = cdr.ResultTD[1];
513 temp_start[2] = cdr.ResultTD[0];
517 CDR_LOG( "CDDA FAKE SUB - %d:%d:%d / %d:%d:%d / %d:%d:%d\n",
518 temp_cur[0], temp_cur[1], temp_cur[2],
519 temp_start[0], temp_start[1], temp_start[2],
520 temp_next[0], temp_next[1], temp_next[2]);
525 // local time - pregap / real
526 diff = msf2sec(temp_cur) - msf2sec( temp_start );
530 sec2msf( -diff, fake_subq_local );
534 sec2msf( diff, fake_subq_local );
539 static void cdrPlayInterrupt_Autopause()
541 struct SubQ *subq = (struct SubQ *)CDR_getBufferSub();
544 CDR_LOG( "CDDA SUB - %X:%X:%X\n",
545 subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
551 Silhouette Mirage ($3)
555 if( cdr.CurTrack >= btoi( subq->TrackNumber ) )
560 CDR_LOG( "CDDA FAKE SUB - %d:%d:%d\n",
561 fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
564 if( !fake_subq_change )
567 fake_subq_change = 0;
570 if (cdr.Mode & MODE_AUTOPAUSE) {
572 CDR_LOG( "CDDA STOP\n" );
575 // Magic the Gathering
576 // - looping territory cdda
579 //cdr.ResultReady = 1;
580 //cdr.Stat = DataReady;
582 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
586 if (cdr.Mode & MODE_REPORT) {
587 // rearmed note: PCSX-Reloaded does this for every sector,
588 // but we try to get away with only track change here.
589 memset( cdr.Result, 0, 8 );
590 cdr.Result[0] |= 0x10;
594 CDR_LOG( "REPPLAY SUB - %X:%X:%X\n",
595 subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
597 cdr.CurTrack = btoi( subq->TrackNumber );
599 // BIOS CD Player: data already BCD format
600 cdr.Result[1] = subq->TrackNumber;
601 cdr.Result[2] = subq->IndexNumber;
603 cdr.Result[3] = subq->AbsoluteAddress[0];
604 cdr.Result[4] = subq->AbsoluteAddress[1];
605 cdr.Result[5] = subq->AbsoluteAddress[2];
608 CDR_LOG( "REPPLAY FAKE - %d:%d:%d\n",
609 fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
613 cdr.Result[1] = itob(cdr.CurTrack);
614 cdr.Result[2] = itob(fake_subq_index);
616 cdr.Result[3] = itob( fake_subq_real[0] );
617 cdr.Result[4] = itob( fake_subq_real[1] );
618 cdr.Result[5] = itob( fake_subq_real[2] );
621 // Rayman: Logo freeze (resultready + dataready)
623 cdr.Stat = DataReady;
626 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
630 void cdrPlayInterrupt()
632 if( !cdr.Play ) return;
635 CDR_LOG( "CDDA - %d:%d:%d\n",
636 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
638 CDRPLAY_INT( cdReadTime );
640 if (!cdr.Irq && !cdr.Stat && (cdr.Mode & MODE_CDDA) && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
641 cdrPlayInterrupt_Autopause();
643 cdr.SetSectorPlay[2]++;
644 if (cdr.SetSectorPlay[2] == 75) {
645 cdr.SetSectorPlay[2] = 0;
646 cdr.SetSectorPlay[1]++;
647 if (cdr.SetSectorPlay[1] == 60) {
648 cdr.SetSectorPlay[1] = 0;
649 cdr.SetSectorPlay[0]++;
656 void cdrInterrupt() {
658 unsigned char Irq = cdr.Irq;
673 cdr.StatP |= STATUS_ROTATING;
674 cdr.Result[0] = cdr.StatP;
675 cdr.Stat = Acknowledge;
680 cdr.Result[0] = cdr.StatP;
681 cdr.Stat = Acknowledge;
683 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
689 cdr.StatP |= STATUS_ROTATING;
690 cdr.Result[0] = cdr.StatP;
691 cdr.Stat = Acknowledge;
695 fake_subq_change = 0;
697 if( cdr.Seeked == FALSE ) {
698 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
703 Rayman: detect track changes
706 Twisted Metal 2: skip PREGAP + starting accurate SubQ
707 - plays tracks without retry play
709 Wild 9: skip PREGAP + starting accurate SubQ
710 - plays tracks without retry play
712 /* unneeded with correct cdriso?
716 ReadTrack( cdr.SetSectorPlay );
718 // GameShark CD Player: Calls 2x + Play 2x
719 if( cdr.FastBackward || cdr.FastForward ) {
720 if( cdr.FastForward ) cdr.FastForward--;
721 if( cdr.FastBackward ) cdr.FastBackward--;
723 if( cdr.FastBackward == 0 && cdr.FastForward == 0 ) {
724 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
725 cdr.SetSectorPlay[0] = stat.Time[0];
726 cdr.SetSectorPlay[1] = stat.Time[1];
727 cdr.SetSectorPlay[2] = stat.Time[2];
735 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
737 // GameShark CD Player: Resume play
738 if( cdr.ParamC == 0 ) {
740 CDR_LOG( "PLAY Resume @ %d:%d:%d\n",
741 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
744 //CDR_play( cdr.SetSectorPlay );
748 // BIOS CD Player: Resume play
749 if( cdr.Param[0] == 0 ) {
751 CDR_LOG( "PLAY Resume T0 @ %d:%d:%d\n",
752 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
755 //CDR_play( cdr.SetSectorPlay );
759 CDR_LOG( "PLAY Resume Td @ %d:%d:%d\n",
760 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
763 // BIOS CD Player: Allow track replaying
767 cdr.CurTrack = btoi( cdr.Param[0] );
769 if (CDR_getTN(cdr.ResultTN) != -1) {
771 if (cdr.CurTrack > cdr.ResultTN[1])
772 cdr.CurTrack = cdr.ResultTN[1];
774 if (CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD) != -1) {
775 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
776 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
777 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
782 ReadTrack( cdr.SetSectorPlay );
784 //CDR_play(cdr.SetSectorPlay);
792 // Vib Ribbon: gameplay checks flag
793 cdr.StatP &= ~STATUS_SEEK;
798 cdr.StatP |= STATUS_ROTATING;
799 cdr.Result[0] = cdr.StatP;
800 cdr.Stat = Acknowledge;
802 cdr.StatP |= STATUS_PLAY;
805 // BIOS player - set flag again
808 CDRPLAY_INT( cdReadTime );
814 cdr.StatP |= STATUS_ROTATING;
815 cdr.Result[0] = cdr.StatP;
819 // GameShark CD Player: Calls 2x + Play 2x
820 if( cdr.FastForward == 0 ) cdr.FastForward = 2;
821 else cdr.FastForward++;
823 cdr.FastBackward = 0;
829 cdr.StatP |= STATUS_ROTATING;
830 cdr.Result[0] = cdr.StatP;
834 // GameShark CD Player: Calls 2x + Play 2x
835 if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
836 else cdr.FastBackward++;
844 cdr.StatP |= STATUS_ROTATING;
845 cdr.Result[0] = cdr.StatP;
852 cdr.StatP &= ~STATUS_ROTATING;
853 cdr.Result[0] = cdr.StatP;
855 // cdr.Stat = Acknowledge;
857 if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
862 cdr.Result[0] = cdr.StatP;
863 cdr.Stat = Acknowledge;
866 Gundam Battle Assault 2: much slower (*)
867 - Fixes boot, gameplay
869 Hokuto no Ken 2: slower
870 - Fixes intro + subtitles
872 InuYasha - Feudal Fairy Tale: slower
875 AddIrqQueue(CdlPause + 0x20, cdReadTime * 3);
879 case CdlPause + 0x20:
881 cdr.StatP &= ~STATUS_READ;
882 cdr.StatP |= STATUS_ROTATING;
883 cdr.Result[0] = cdr.StatP;
889 cdr.StatP = STATUS_ROTATING;
890 cdr.Result[0] = cdr.StatP;
891 cdr.Stat = Acknowledge;
893 AddIrqQueue(CdlInit + 0x20, 0x800);
899 cdr.Result[0] = cdr.StatP;
906 cdr.StatP |= STATUS_ROTATING;
907 cdr.Result[0] = cdr.StatP;
908 cdr.Stat = Acknowledge;
913 cdr.StatP |= STATUS_ROTATING;
914 cdr.Result[0] = cdr.StatP;
915 cdr.Stat = Acknowledge;
920 cdr.StatP |= STATUS_ROTATING;
921 cdr.Result[0] = cdr.StatP;
922 cdr.Stat = Acknowledge;
927 cdr.StatP |= STATUS_ROTATING;
928 cdr.Result[0] = cdr.StatP;
929 cdr.Stat = Acknowledge;
934 cdr.StatP |= STATUS_ROTATING;
935 cdr.Result[0] = cdr.StatP;
936 cdr.Result[1] = cdr.Mode;
937 cdr.Result[2] = cdr.File;
938 cdr.Result[3] = cdr.Channel;
941 cdr.Stat = Acknowledge;
946 for (i = 0; i < 8; i++)
947 cdr.Result[i] = cdr.Transfer[i];
948 cdr.Stat = Acknowledge;
952 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
954 memset( cdr.Result, 0, 16 );
956 subq = (struct SubQ *)CDR_getBufferSub();
959 cdr.Result[0] = subq->TrackNumber;
960 cdr.Result[1] = subq->IndexNumber;
961 memcpy(cdr.Result + 2, subq->TrackRelativeAddress, 3);
962 memcpy(cdr.Result + 5, subq->AbsoluteAddress, 3);
965 // subQ integrity check - data only (skip audio)
966 if( subq->TrackNumber == 1 && stat.Type == 0x01 ) {
967 if (calcCrc((u8 *)subq + 12, 10) != (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
968 memset(cdr.Result + 2, 0, 3 + 3); // CRC wrong, wipe out time data
972 if( cdr.Play == FALSE || !(cdr.Mode & MODE_CDDA) || !(cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)) )
977 cdr.Result[0] = itob(cdr.CurTrack);
978 cdr.Result[1] = itob(fake_subq_index);
981 cdr.Result[2] = itob( fake_subq_local[0] );
982 cdr.Result[3] = itob( fake_subq_local[1] );
983 cdr.Result[4] = itob( fake_subq_local[2] );
986 cdr.Result[5] = itob( fake_subq_real[0] );
987 cdr.Result[6] = itob( fake_subq_real[1] );
988 cdr.Result[7] = itob( fake_subq_real[2] );
991 // redump.org - wipe time
992 if( !cdr.Play && CheckSBI(cdr.Result+5) ) {
993 memset( cdr.Result+2, 0, 6 );
996 cdr.Stat = Acknowledge;
1000 // 5-Star Racing: don't stop CDDA
1002 // Vib Ribbon: CD swap
1007 cdr.StatP |= STATUS_ROTATING;
1008 cdr.Result[0] = cdr.StatP;
1009 if (CDR_getTN(cdr.ResultTN) == -1) {
1010 cdr.Stat = DiskError;
1011 cdr.Result[0] |= STATUS_ERROR;
1013 cdr.Stat = Acknowledge;
1014 cdr.Result[1] = itob(cdr.ResultTN[0]);
1015 cdr.Result[2] = itob(cdr.ResultTN[1]);
1021 cdr.Track = btoi(cdr.Param[0]);
1023 cdr.StatP |= STATUS_ROTATING;
1024 if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
1025 cdr.Stat = DiskError;
1026 cdr.Result[0] |= STATUS_ERROR;
1028 cdr.Stat = Acknowledge;
1029 cdr.Result[0] = cdr.StatP;
1030 cdr.Result[1] = itob(cdr.ResultTD[2]);
1031 cdr.Result[2] = itob(cdr.ResultTD[1]);
1032 cdr.Result[3] = itob(cdr.ResultTD[0]);
1038 cdr.StatP |= STATUS_ROTATING;
1039 cdr.Result[0] = cdr.StatP;
1040 cdr.StatP |= STATUS_SEEK;
1041 cdr.Stat = Acknowledge;
1044 Crusaders of Might and Magic = 0.5x-4x
1045 - fix cutscene speech start
1047 Eggs of Steel = 2x-?
1051 - fix cutscene speech
1056 AddIrqQueue(CdlSeekL + 0x20, cdReadTime * 4);
1059 case CdlSeekL + 0x20:
1061 cdr.StatP |= STATUS_ROTATING;
1062 cdr.StatP &= ~STATUS_SEEK;
1063 cdr.Result[0] = cdr.StatP;
1065 cdr.Stat = Complete;
1068 // Mega Man Legends 2: must update read cursor for getlocp
1069 ReadTrack( cdr.SetSector );
1074 cdr.StatP |= STATUS_ROTATING;
1075 cdr.Result[0] = cdr.StatP;
1076 cdr.StatP |= STATUS_SEEK;
1077 cdr.Stat = Acknowledge;
1078 AddIrqQueue(CdlSeekP + 0x20, cdReadTime * 1);
1081 case CdlSeekP + 0x20:
1083 cdr.StatP |= STATUS_ROTATING;
1084 cdr.StatP &= ~STATUS_SEEK;
1085 cdr.Result[0] = cdr.StatP;
1086 cdr.Stat = Complete;
1089 // GameShark Music Player
1090 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
1092 // Tomb Raider 2: must update read cursor for getlocp
1094 ReadTrack( cdr.SetSectorPlay );
1098 cdr.Stat = Acknowledge;
1099 switch (cdr.Param[0]) {
1100 case 0x20: // System Controller ROM Version
1102 memcpy(cdr.Result, Test20, 4);
1106 memcpy(cdr.Result, Test22, 4);
1108 case 0x23: case 0x24:
1110 memcpy(cdr.Result, Test23, 4);
1117 cdr.StatP |= STATUS_ROTATING;
1118 cdr.Result[0] = cdr.StatP;
1119 cdr.Stat = Acknowledge;
1120 AddIrqQueue(CdlID + 0x20, 0x800);
1126 if (CDR_getStatus(&stat) == -1) {
1127 cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
1128 cdr.Result[1] = 0x80; // 0x80 leads to the menu in the bios, else loads CD
1131 if (stat.Type == 2) {
1133 cdr.Result[0] = 0x08;
1134 cdr.Result[1] = 0x10;
1136 cdr.Result[1] |= 0x80;
1140 if (CdromId[0] == '\0') {
1141 cdr.Result[0] = 0x00;
1142 cdr.Result[1] = 0x80;
1145 cdr.Result[0] = 0x08;
1146 cdr.Result[1] = 0x00;
1151 cdr.Result[2] = 0x00;
1152 cdr.Result[3] = 0x00;
1153 strncpy((char *)&cdr.Result[4], "PCSX", 4);
1154 cdr.Stat = Complete;
1159 cdr.StatP = STATUS_ROTATING;
1160 cdr.Result[0] = cdr.StatP;
1161 cdr.Stat = Acknowledge;
1166 cdr.StatP |= STATUS_ROTATING;
1167 cdr.Result[0] = cdr.StatP;
1168 cdr.Stat = Acknowledge;
1169 AddIrqQueue(CdlReadT + 0x20, 0x800);
1172 case CdlReadT + 0x20:
1174 cdr.StatP |= STATUS_ROTATING;
1175 cdr.Result[0] = cdr.StatP;
1176 cdr.Stat = Complete;
1181 cdr.StatP |= STATUS_ROTATING;
1182 cdr.Result[0] = cdr.StatP;
1183 cdr.Stat = Acknowledge;
1184 AddIrqQueue(CdlReadToc + 0x20, 0x800);
1187 case CdlReadToc + 0x20:
1189 cdr.StatP |= STATUS_ROTATING;
1190 cdr.Result[0] = cdr.StatP;
1191 cdr.Stat = Complete;
1196 /* SetResultSize(1);
1202 cdr.Result[0] = cdr.StatP;
1204 */ AddIrqQueue(CdlPause, 0x800);
1208 if (!cdr.Reading) return;
1211 // Fighting Force 2 - update subq time immediately
1213 ReadTrack( cdr.SetSector );
1216 // Crusaders of Might and Magic - update getlocl now
1217 // - fixes cutscene speech
1219 u8 *buf = CDR_getBuffer();
1221 memcpy(cdr.Transfer, buf, 8);
1226 Duke Nukem: Land of the Babes - seek then delay read for one frame
1233 cdr.StatP |= STATUS_SEEK;
1234 cdr.StatP &= ~STATUS_READ;
1236 // Crusaders of Might and Magic - use short time
1237 // - fix cutscene speech (startup)
1239 // ??? - use more accurate seek time later
1240 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1242 cdr.StatP |= STATUS_READ;
1243 cdr.StatP &= ~STATUS_SEEK;
1245 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1249 cdr.StatP |= STATUS_ROTATING;
1250 cdr.Result[0] = cdr.StatP;
1251 cdr.Stat = Acknowledge;
1258 cdr.Stat = Complete;
1264 if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18) {
1265 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1269 CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq);
1273 void cdrReadInterrupt() {
1279 if (cdr.Irq || cdr.Stat) {
1285 CDR_LOG("cdrReadInterrupt() Log: KEY END");
1290 cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1291 cdr.StatP &= ~STATUS_SEEK;
1292 cdr.Result[0] = cdr.StatP;
1294 ReadTrack( cdr.SetSector );
1296 buf = CDR_getBuffer();
1300 if (cdr.RErr == -1) {
1302 fprintf(emuLog, "cdrReadInterrupt() Log: err\n");
1304 memset(cdr.Transfer, 0, DATA_SIZE);
1305 cdr.Stat = DiskError;
1306 cdr.Result[0] |= STATUS_ERROR;
1307 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1311 memcpy(cdr.Transfer, buf, DATA_SIZE);
1312 CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1316 fprintf(emuLog, "cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1319 if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1320 // Firemen 2: Multi-XA files - briefings, cutscenes
1321 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1322 cdr.File = cdr.Transfer[4 + 0];
1323 cdr.Channel = cdr.Transfer[4 + 1];
1326 if ((cdr.Transfer[4 + 2] & 0x4) &&
1327 (cdr.Transfer[4 + 1] == cdr.Channel) &&
1328 (cdr.Transfer[4 + 0] == cdr.File)) {
1329 int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1332 SPU_playADPCMchannel(&cdr.Xa);
1333 cdr.FirstSector = 0;
1336 // Crash Team Racing: music, speech
1337 // - done using cdda decoded buffer (spu irq)
1340 // signal ADPCM data ready
1341 psxHu32ref(0x1070) |= SWAP32((u32)0x200);
1344 else cdr.FirstSector = -1;
1349 if (cdr.SetSector[2] == 75) {
1350 cdr.SetSector[2] = 0;
1352 if (cdr.SetSector[1] == 60) {
1353 cdr.SetSector[1] = 0;
1360 // G-Police: Don't autopause ADPCM even if mode set (music)
1361 if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & MODE_AUTOPAUSE) &&
1362 (cdr.Transfer[4 + 2] & 0x4) != 0x4 ) { // EOF
1364 CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n");
1366 // AddIrqQueue(AUTOPAUSE, 0x2000);
1367 AddIrqQueue(CdlPause, 0x2000);
1370 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1374 Croc 2: $40 - only FORM1 (*)
1375 Judge Dredd: $C8 - only FORM1 (*)
1376 Sim Theme Park - no adpcm at all (zero)
1379 if( (cdr.Mode & MODE_STRSND) == 0 || (cdr.Transfer[4+2] & 0x4) != 0x4 ) {
1380 cdr.Stat = DataReady;
1382 // Breath of Fire 3 - fix inn sleeping
1383 // Rockman X5 - no music restart problem
1386 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1393 bit 0 - 0 REG1 command send / 1 REG1 data read
1394 bit 1 - 0 data transfer finish / 1 data transfer ready/in progress
1398 bit 5 - 1 result ready
1400 bit 7 - 1 command being processed
1403 unsigned char cdrRead0(void) {
1404 if (cdr.ResultReady)
1412 // cdr.Ctrl &= ~0x40;
1414 // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1418 CDR_LOG("cdrRead0() Log: CD0 Read: %x\n", cdr.Ctrl);
1421 return psxHu8(0x1800) = cdr.Ctrl;
1426 0 - to send a command / 1 - to get the result
1429 void cdrWrite0(unsigned char rt) {
1431 CDR_LOG("cdrWrite0() Log: CD0 write: %x\n", rt);
1433 cdr.Ctrl = rt | (cdr.Ctrl & ~0x3);
1438 cdr.ResultReady = 0;
1442 unsigned char cdrRead1(void) {
1443 if (cdr.ResultReady) { // && cdr.Ctrl & 0x1) {
1444 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
1445 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1447 if (cdr.ResultP == cdr.ResultC)
1448 cdr.ResultReady = 0;
1453 CDR_LOG("cdrRead1() Log: CD1 Read: %x\n", psxHu8(0x1801));
1455 return psxHu8(0x1801);
1458 void cdrWrite1(unsigned char rt) {
1462 CDR_LOG("cdrWrite1() Log: CD1 write: %x (%s)\n", rt, CmdName[rt]);
1466 // Tekken: CDXA fade-out
1467 if( (cdr.Ctrl & 3) == 3 ) {
1468 //cdr.AttenuatorRight[0] = rt;
1472 // psxHu8(0x1801) = rt;
1477 SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
1479 SysPrintf(" Param[%d] = {", cdr.ParamC);
1480 for (i = 0; i < cdr.ParamC; i++)
1481 SysPrintf(" %x,", cdr.Param[i]);
1488 if (cdr.Ctrl & 0x1) return;
1494 AddIrqQueue(cdr.Cmd, 0x800);
1501 // Twisted Metal 3 - fix music
1502 AddIrqQueue(cdr.Cmd, 0x800);
1508 for (i = 0; i < 3; i++)
1509 cdr.SetSector[i] = btoi(cdr.Param[i]);
1510 cdr.SetSector[3] = 0;
1513 if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) {
1514 *(u32 *)cdr.SetSector = *(u32 *)cdr.SetSectorSeek;
1519 AddIrqQueue(cdr.Cmd, 0x800);
1523 // Vib Ribbon: try same track again
1526 if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
1527 if (CDR_getTN(cdr.ResultTN) != -1) {
1528 if (cdr.CurTrack > cdr.ResultTN[1])
1529 cdr.CurTrack = cdr.ResultTN[1];
1530 if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
1531 int tmp = cdr.ResultTD[2];
1532 cdr.ResultTD[2] = cdr.ResultTD[0];
1533 cdr.ResultTD[0] = tmp;
1534 if (!Config.Cdda) CDR_play(cdr.ResultTD);
1537 } else if (!Config.Cdda) {
1538 CDR_play(cdr.SetSector);
1541 // Vib Ribbon - decoded buffer IRQ for CDDA reading
1542 // - fixes ribbon timing + music CD mode
1544 //CDRDBUF_INT( PSXCLK / 44100 * 0x100 );
1549 cdr.StatP |= STATUS_SEEK;
1550 cdr.StatP &= ~STATUS_ROTATING;
1554 AddIrqQueue(cdr.Cmd, 0x800);
1558 //if (cdr.CurTrack < 0xaa)
1562 AddIrqQueue(cdr.Cmd, 0x800);
1566 //if (cdr.CurTrack > 1)
1570 AddIrqQueue(cdr.Cmd, 0x800);
1578 StartReading(1, 0x800);
1586 AddIrqQueue(cdr.Cmd, 0x800);
1590 // GameShark CD Player: Reset CDDA to track start
1591 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
1592 cdr.SetSectorPlay[0] = stat.Time[0];
1593 cdr.SetSectorPlay[1] = stat.Time[1];
1594 cdr.SetSectorPlay[2] = stat.Time[2];
1599 // grab time for current track
1600 CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
1602 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
1603 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
1604 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
1612 AddIrqQueue(cdr.Cmd, 0x800);
1617 GameShark CD Player: save time for resume
1619 Twisted Metal - World Tour: don't mix Setloc / CdlPlay cursors
1627 AddIrqQueue(cdr.Cmd, 0x800);
1636 AddIrqQueue(cdr.Cmd, 0x800);
1643 AddIrqQueue(cdr.Cmd, 0x800);
1645 // Duke Nukem - Time to Kill
1646 // - do not directly set cd-xa volume
1647 //SPU_writeRegister( H_CDLeft, 0x0000 );
1648 //SPU_writeRegister( H_CDRight, 0x0000 );
1655 AddIrqQueue(cdr.Cmd, 0x800);
1657 // Duke Nukem - Time to Kill
1658 // - do not directly set cd-xa volume
1659 //SPU_writeRegister( H_CDLeft, 0x7f00 );
1660 //SPU_writeRegister( H_CDRight, 0x7f00 );
1664 cdr.File = cdr.Param[0];
1665 cdr.Channel = cdr.Param[1];
1668 AddIrqQueue(cdr.Cmd, 0x800);
1673 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
1675 cdr.Mode = cdr.Param[0];
1678 AddIrqQueue(cdr.Cmd, 0x800);
1680 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1681 // - fixes choppy movie sound
1682 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1689 AddIrqQueue(cdr.Cmd, 0x800);
1696 // Crusaders of Might and Magic - cutscene speech
1697 AddIrqQueue(cdr.Cmd, 0x800);
1704 // GameShark CDX / Lite Player: pretty narrow time window
1705 // - doesn't always work due to time inprecision
1706 //AddIrqQueue(cdr.Cmd, 0x28);
1708 // Tomb Raider 2 - cdda
1709 //AddIrqQueue(cdr.Cmd, 0x40);
1711 // rearmed: the above works in pcsxr-svn, but breaks here
1712 // (TOCA world touring cars), perhaps some other code is not merged yet
1713 AddIrqQueue(cdr.Cmd, 0x1000);
1719 //AddIrqQueue(cdr.Cmd, 0x800);
1721 // GameShark CDX CD Player: very long time
1722 AddIrqQueue(cdr.Cmd, 0x100000);
1728 AddIrqQueue(cdr.Cmd, 0x800);
1732 // ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
1735 AddIrqQueue(cdr.Cmd, 0x800);
1743 // ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
1747 // Tomb Raider 2 - reset cdda
1751 AddIrqQueue(cdr.Cmd, 0x800);
1754 // Destruction Derby: read TOC? GetTD after this
1758 AddIrqQueue(cdr.Cmd, 0x800);
1764 AddIrqQueue(cdr.Cmd, 0x800);
1770 AddIrqQueue(cdr.Cmd, 0x800);
1778 StartReading(2, 0x800);
1784 AddIrqQueue(cdr.Cmd, 0x800);
1789 CDR_LOG("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
1793 if (cdr.Stat != NoIntr) {
1794 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1798 unsigned char cdrRead2(void) {
1801 if (cdr.Readed == 0) {
1804 ret = *cdr.pTransfer++;
1808 CDR_LOG("cdrRead2() Log: CD2 Read: %x\n", ret);
1813 void cdrWrite2(unsigned char rt) {
1815 CDR_LOG("cdrWrite2() Log: CD2 write: %x\n", rt);
1818 // Tekken: CDXA fade-out
1819 if( (cdr.Ctrl & 3) == 2 ) {
1820 //cdr.AttenuatorLeft[0] = rt;
1822 else if( (cdr.Ctrl & 3) == 3 ) {
1823 //cdr.AttenuatorRight[1] = rt;
1827 if (cdr.Ctrl & 0x1) {
1832 cdr.ResultReady = 1; //0;
1833 cdr.Ctrl &= ~3; //cdr.Ctrl = 0;
1840 } else if (!(cdr.Ctrl & 0x1) && cdr.ParamP < 8) {
1841 cdr.Param[cdr.ParamP++] = rt;
1846 unsigned char cdrRead3(void) {
1849 psxHu8(0x1803) = cdr.Stat | 0xE0;
1851 psxHu8(0x1803) = 0xff;
1856 CDR_LOG("cdrRead3() Log: CD3 Read: %x\n", psxHu8(0x1803));
1858 return psxHu8(0x1803);
1861 void cdrWrite3(unsigned char rt) {
1863 CDR_LOG("cdrWrite3() Log: CD3 write: %x\n", rt);
1866 // Tekken: CDXA fade-out
1867 if( (cdr.Ctrl & 3) == 2 ) {
1868 cdr.AttenuatorLeft[1] = rt;
1870 else if( (cdr.Ctrl & 3) == 3 && rt == 0x20 ) {
1872 CDR_LOG( "CD-XA Volume: %X %X | %X %X\n",
1873 cdr.AttenuatorLeft[0], cdr.AttenuatorLeft[1],
1874 cdr.AttenuatorRight[0], cdr.AttenuatorRight[1] );
1879 // GameShark CDX CD Player: Irq timing mania
1881 cdr.Irq != 0 && cdr.Irq != 0xff &&
1882 cdr.ResultReady == 0 ) {
1884 // GS CDX: ~0x28 cycle timing - way too precise
1885 if( cdr.Irq == CdlGetlocP ) {
1888 psxRegs.interrupt &= ~(1 << PSXINT_CDR);
1893 if (rt == 0x07 && cdr.Ctrl & 0x1) {
1896 if (cdr.Irq == 0xff) {
1901 // XA streaming - incorrect timing because of this reschedule
1902 // - Final Fantasy Tactics
1903 // - various other games
1905 if (cdr.Reading && !cdr.ResultReady) {
1906 int left = psxRegs.intCycle[PSXINT_CDREAD].sCycle + psxRegs.intCycle[PSXINT_CDREAD].cycle - psxRegs.cycle;
1907 int time = (cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime;
1908 if (Config.CdrReschedule != 2)
1909 if (left < time / 2 || Config.CdrReschedule) { // rearmed guesswork hack
1910 //printf("-- resched %d -> %d\n", left, time);
1918 if (rt == 0x80 && !(cdr.Ctrl & 0x1) && cdr.Readed == 0) {
1920 cdr.pTransfer = cdr.Transfer;
1922 switch (cdr.Mode & 0x30) {
1923 case MODE_SIZE_2328:
1925 cdr.pTransfer += 12;
1928 case MODE_SIZE_2340:
1938 void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1943 CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1949 if (cdr.Readed == 0) {
1951 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1956 cdsize = (bcr & 0xffff) * 4;
1958 // Ape Escape: bcr = 0001 / 0000
1962 switch (cdr.Mode & 0x30) {
1963 case 0x00: cdsize = 2048; break;
1964 case MODE_SIZE_2328: cdsize = 2328; break;
1965 case MODE_SIZE_2340: cdsize = 2340; break;
1970 ptr = (u8 *)PSXM(madr);
1973 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
1979 GS CDX: Enhancement CD crash
1982 - Spams DMA3 and gets buffer overrun
1985 if( (cdr.pTransfer-cdr.Transfer) + cdsize > 2352 )
1987 // avoid crash - probably should wrap here
1988 //memcpy(ptr, cdr.pTransfer, cdsize);
1992 memcpy(ptr, cdr.pTransfer, cdsize);
1995 psxCpu->Clear(madr, cdsize / 4);
1996 cdr.pTransfer += cdsize;
2000 if( chcr == 0x11400100 ) {
2001 CDRDMA_INT( (cdsize/4) / 4 );
2003 else if( chcr == 0x11000000 ) {
2004 CDRDMA_INT( (cdsize/4) * 1 );
2010 CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
2015 HW_DMA3_CHCR &= SWAP32(~0x01000000);
2019 void cdrDmaInterrupt()
2021 if (HW_DMA3_CHCR & SWAP32(0x01000000))
2023 HW_DMA3_CHCR &= SWAP32(~0x01000000);
2029 memset(&cdr, 0, sizeof(cdr));
2035 int cdrFreeze(gzFile f, int Mode) {
2043 gzfreeze(&cdr, sizeof(cdr));
2046 tmp = cdr.pTransfer - cdr.Transfer;
2048 gzfreeze(&tmp, sizeof(tmp));
2051 cdr.pTransfer = cdr.Transfer + tmp;
2056 void LidInterrupt() {
2057 cdr.LidCheck = 0x20; // start checker
2059 CDRLID_INT( cdReadTime * 3 );
2061 // generate interrupt if none active - open or close
2062 if (cdr.Irq == 0 || cdr.Irq == 0xff) {
2065 AddIrqQueue(CdlNop, 0x800);