pcsxr/libpcsxcore/cdrom.c

/***************************************************************************
 *   Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team              *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
 ***************************************************************************/

/*
* Handles all CD-ROM registers and functions.
*/

#include "cdrom.h"
#include "ppf.h"
#include "psxdma.h"

cdrStruct cdr;

/* CD-ROM magic numbers */
#define CdlSync        0
#define CdlNop         1
#define CdlSetloc      2
#define CdlPlay        3
#define CdlForward     4
#define CdlBackward    5
#define CdlReadN       6
#define CdlStandby     7
#define CdlStop        8
#define CdlPause       9
#define CdlInit        10
#define CdlMute        11
#define CdlDemute      12
#define CdlSetfilter   13
#define CdlSetmode     14
#define CdlGetmode     15
#define CdlGetlocL     16
#define CdlGetlocP     17
#define CdlReadT       18
#define CdlGetTN       19
#define CdlGetTD       20
#define CdlSeekL       21
#define CdlSeekP       22
#define CdlSetclock    23
#define CdlGetclock    24
#define CdlTest        25
#define CdlID          26
#define CdlReadS       27
#define CdlReset       28
#define CdlReadToc     30

#define AUTOPAUSE      249
#define READ_ACK       250
#define READ           251
#define REPPLAY_ACK    252
#define REPPLAY        253
#define ASYNC          254
/* don't set 255, it's reserved */

char *CmdName[0x100]= {
    "CdlSync",     "CdlNop",       "CdlSetloc",  "CdlPlay",
    "CdlForward",  "CdlBackward",  "CdlReadN",   "CdlStandby",
    "CdlStop",     "CdlPause",     "CdlInit",    "CdlMute",
    "CdlDemute",   "CdlSetfilter", "CdlSetmode", "CdlGetmode",
    "CdlGetlocL",  "CdlGetlocP",   "CdlReadT",   "CdlGetTN",
    "CdlGetTD",    "CdlSeekL",     "CdlSeekP",   "CdlSetclock",
    "CdlGetclock", "CdlTest",      "CdlID",      "CdlReadS",
    "CdlReset",    NULL,           "CDlReadToc", NULL
};

unsigned char Test04[] = { 0 };
unsigned char Test05[] = { 0 };
unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };

// cdr.Stat:
#define NoIntr		0
#define DataReady	1
#define Complete	2
#define Acknowledge	3
#define DataEnd		4
#define DiskError	5

/* Modes flags */
#define MODE_SPEED       (1<<7) // 0x80
#define MODE_STRSND      (1<<6) // 0x40 ADPCM on/off
#define MODE_SIZE_2340   (1<<5) // 0x20
#define MODE_SIZE_2328   (1<<4) // 0x10
#define MODE_SIZE_2048   (0<<4) // 0x00
#define MODE_SF          (1<<3) // 0x08 channel on/off
#define MODE_REPORT      (1<<2) // 0x04
#define MODE_AUTOPAUSE   (1<<1) // 0x02
#define MODE_CDDA        (1<<0) // 0x01

/* Status flags */
#define STATUS_PLAY      (1<<7) // 0x80
#define STATUS_SEEK      (1<<6) // 0x40
#define STATUS_READ      (1<<5) // 0x20
#define STATUS_SHELLOPEN (1<<4) // 0x10
#define STATUS_UNKNOWN3  (1<<3) // 0x08
#define STATUS_UNKNOWN2  (1<<2) // 0x04
#define STATUS_ROTATING  (1<<1) // 0x02
#define STATUS_ERROR     (1<<0) // 0x01

#define XA_ATTENUATE 0
#define CDDA_ATTENUATE 1

// 1x = 75 sectors per second
// PSXCLK = 1 sec in the ps
// so (PSXCLK / 75) = cdr read time (linuzappz)
#define cdReadTime (PSXCLK / 75)

static struct CdrStat stat;
static struct SubQ *subq;


extern unsigned int msf2sec(char *msf);
extern void sec2msf(unsigned int s, char *msf);


extern long CALLBACK ISOinit(void);
extern void CALLBACK SPUirq(void);
extern SPUregisterCallback SPU_registerCallback;

// A bit of a kludge, but it will get rid of the "macro redefined" warnings

#ifdef H_SPUirqAddr
#undef H_SPUirqAddr
#endif

#ifdef H_SPUaddr
#undef H_SPUaddr
#endif

#ifdef H_SPUctrl
#undef H_SPUctrl
#endif

#define H_SPUirqAddr		0x1f801da4
#define H_SPUaddr				0x1f801da6
#define H_SPUctrl				0x1f801daa
#define H_CDLeft				0x1f801db0
#define H_CDRight				0x1f801db2


#define CDR_INT(eCycle) { \
	psxRegs.interrupt |= (1 << PSXINT_CDR); \
	psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
	psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \
}

#define CDREAD_INT(eCycle) { \
	psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
	psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \
	psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
}

#define CDRDBUF_INT(eCycle) { \
	psxRegs.interrupt |= (1 << PSXINT_CDRDBUF); \
	psxRegs.intCycle[PSXINT_CDRDBUF].cycle = eCycle; \
	psxRegs.intCycle[PSXINT_CDRDBUF].sCycle = psxRegs.cycle; \
}

#define CDRLID_INT(eCycle) { \
	psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
	psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
	psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \
}

#define CDRPLAY_INT(eCycle) { \
	psxRegs.interrupt |= (1 << PSXINT_CDRPLAY); \
	psxRegs.intCycle[PSXINT_CDRPLAY].cycle = eCycle; \
	psxRegs.intCycle[PSXINT_CDRPLAY].sCycle = psxRegs.cycle; \
}

#define StartReading(type, eCycle) { \
   	cdr.Reading = type; \
  	cdr.FirstSector = 1; \
  	cdr.Readed = 0xff; \
	AddIrqQueue(READ_ACK, eCycle); \
}

#define StopReading() { \
	if (cdr.Reading) { \
		cdr.Reading = 0; \
		psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
	} \
	cdr.StatP &= ~STATUS_READ;\
}

#define StopCdda() { \
	if (cdr.Play) { \
		if (!Config.Cdda) CDR_stop(); \
		cdr.StatP &= ~STATUS_PLAY; \
		cdr.Play = FALSE; \
		cdr.FastForward = 0; \
		cdr.FastBackward = 0; \
		SPU_registerCallback( SPUirq ); \
	} \
}

#define SetResultSize(size) { \
    cdr.ResultP = 0; \
	cdr.ResultC = size; \
	cdr.ResultReady = 1; \
}

void adjustTransferIndex()
{
	unsigned int bufSize = 0;
	
	switch (cdr.Mode & (MODE_SIZE_2340|MODE_SIZE_2328)) {
			//Do we need a default case in this switch?
		case MODE_SIZE_2340: bufSize = 2340; break;
		case MODE_SIZE_2328: bufSize = 12 + 2328; break;
		case MODE_SIZE_2048: bufSize = 12 + 2048; break;
	}
	
	if (cdr.transferIndex >= bufSize)
	{
		if (bufSize == 0) {
			//Make sure we don't divide by zero
			//Do nothing
		} else {
			cdr.transferIndex %= bufSize;
		}
	}
}

// FIXME: do this in SPU instead
void cdrDecodedBufferInterrupt()
{
	u16 buf_ptr[0x400], lcv;

#if 0
	return;
#endif


	// ISO reader only
	if( CDR_init != ISOinit ) return;


	// check dbuf IRQ still active
	if( cdr.Play == 0 ) return;
	if( (SPU_readRegister( H_SPUctrl ) & 0x40) == 0 ) return;
	if( (SPU_readRegister( H_SPUirqAddr ) * 8) >= 0x800 ) return;



	// turn off plugin SPU IRQ decoded buffer handling
	SPU_registerCallback( 0 );



	/*
	Vib Ribbon

	000-3FF = left CDDA
	400-7FF = right CDDA

	Assume IRQ every wrap
	*/

	// signal CDDA data ready
	psxHu32ref(0x1070) |= SWAP32((u32)0x200);


	// time for next full buffer
	//CDRDBUF_INT( PSXCLK / 44100 * 0x200 );
	CDRDBUF_INT( PSXCLK / 44100 * 0x100 );
}


void cdrLidSeekInterrupt()
{
	// turn back on checking
	if( cdr.LidCheck == 0x10 )
	{
		cdr.LidCheck = 0;
	}

	// official lid close
	else if( cdr.LidCheck == 0x30 )
	{
		// GS CDX 3.3: $13
		cdr.StatP |= STATUS_ROTATING;


		// GS CDX 3.3 - ~50 getlocp tries
		CDRLID_INT( cdReadTime * 3 );
		cdr.LidCheck = 0x40;
	}

	// turn off ready
	else if( cdr.LidCheck == 0x40 )
	{
		// GS CDX 3.3: $01
		cdr.StatP &= ~STATUS_SHELLOPEN;
		cdr.StatP &= ~STATUS_ROTATING;


		// GS CDX 3.3 - ~50 getlocp tries
		CDRLID_INT( cdReadTime * 3 );
		cdr.LidCheck = 0x50;
	}

	// now seek
	else if( cdr.LidCheck == 0x50 )
	{
		// GameShark Lite: Start seeking ($42)
		cdr.StatP |= STATUS_SEEK;
		cdr.StatP |= STATUS_ROTATING;
		cdr.StatP &= ~STATUS_ERROR;


		CDRLID_INT( cdReadTime * 3 );
		cdr.LidCheck = 0x60;
	}

	// done = cd ready
	else if( cdr.LidCheck == 0x60 )
	{
		// GameShark Lite: Seek detection done ($02)
		cdr.StatP &= ~STATUS_SEEK;

		cdr.LidCheck = 0;
	}
}


void Check_Shell( int Irq )
{
	// check case open/close
	if (cdr.LidCheck > 0)
	{
#ifdef CDR_LOG
		CDR_LOG( "LidCheck\n" );
#endif

		// $20 = check lid state
		if( cdr.LidCheck == 0x20 )
		{
			u32 i;

			i = stat.Status;
			if (CDR_getStatus(&stat) != -1)
			{
				// BIOS hangs + BIOS error messages
				//if (stat.Type == 0xff)
					//cdr.Stat = DiskError;

				// case now open
				if (stat.Status & STATUS_SHELLOPEN)
				{
					// Vib Ribbon: pre-CD swap
					StopCdda();


					// GameShark Lite: Death if DiskError happens
					//
					// Vib Ribbon: Needs DiskError for CD swap

					if (Irq != CdlNop)
					{
						cdr.Stat = DiskError;

						cdr.StatP |= STATUS_ERROR;
						cdr.Result[0] |= STATUS_ERROR;
					}

					// GameShark Lite: Wants -exactly- $10
					cdr.StatP |= STATUS_SHELLOPEN;
					cdr.StatP &= ~STATUS_ROTATING;


					CDRLID_INT( cdReadTime * 3 );
					cdr.LidCheck = 0x10;


					// GS CDX 3.3 = $11
				}

				// case just closed
				else if ( i & STATUS_SHELLOPEN )
				{
					cdr.StatP |= STATUS_ROTATING;

					CheckCdrom();


					if( cdr.Stat == NoIntr )
						cdr.Stat = Acknowledge;

					psxHu32ref(0x1070) |= SWAP32((u32)0x4);


					// begin close-seek-ready cycle
					CDRLID_INT( cdReadTime * 3 );
					cdr.LidCheck = 0x30;


					// GameShark Lite: Wants -exactly- $42, then $02
					// GS CDX 3.3: Wants $11/$80, $13/$80, $01/$00
				}

				// case still closed - wait for recheck
				else
				{
					CDRLID_INT( cdReadTime * 3 );
					cdr.LidCheck = 0x10;
				}
			}
		}


		// GS CDX: clear all values but #1,#2
		if( (cdr.LidCheck >= 0x30) || (cdr.StatP & STATUS_SHELLOPEN) )
		{
			SetResultSize(16);
			memset( cdr.Result, 0, 16 );

			cdr.Result[0] = cdr.StatP;


			// GS CDX: special return value
			if( cdr.StatP & STATUS_SHELLOPEN )
			{
				cdr.Result[1] = 0x80;
			}


			if( cdr.Stat == NoIntr )
				cdr.Stat = Acknowledge;

			psxHu32ref(0x1070) |= SWAP32((u32)0x4);
		}
	}
}


void Find_CurTrack() {
	cdr.CurTrack = 0;

	if (CDR_getTN(cdr.ResultTN) != -1) {
		int lcv;

		for( lcv = 1; lcv <= cdr.ResultTN[1]; lcv++ ) {
			if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
				u32 sect1, sect2;

#ifdef CDR_LOG___0
				CDR_LOG( "curtrack %d %d %d | %d %d %d | %d\n",
					cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
					cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
					cdr.CurTrack );
#endif

				// find next track boundary - only need m:s accuracy
				sect1 = cdr.SetSectorPlay[0] * 60 * 75 + cdr.SetSectorPlay[1] * 75;
				sect2 = cdr.ResultTD[2] * 60 * 75 + cdr.ResultTD[1] * 75;

				// Twisted Metal 4 - psx cdda pregap (2-sec)
				// - fix in-game music
				sect2 -= 75 * 2;

				if( sect1 >= sect2 ) {
					cdr.CurTrack++;
					continue;
				}
			}

			break;
		}
	}
}

static void ReadTrack( u8 *time ) {
	cdr.Prev[0] = itob( time[0] );
	cdr.Prev[1] = itob( time[1] );
	cdr.Prev[2] = itob( time[2] );

#ifdef CDR_LOG
	CDR_LOG("ReadTrack() Log: KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
#endif
	cdr.RErr = CDR_readTrack(cdr.Prev);
}


static void CDXA_Attenuation( s16 *buf, int size, int stereo, int attenuate_type )
{
	s16 *spsound;
	s32 lc = 0, rc = 0;
	int i;

	spsound = buf;

#if 0
	// mono xa attenuation
	// - Tales of Phantasia (voice meter)
	if( stereo == 0 ) {
		s16 temp[32768];
		int dst;

		dst = 0;
		for( i = 0; i < size; i++, dst+=2 ) {
			temp[dst+0] = spsound[i];
			temp[dst+1] = spsound[i];
		}

		size *= 2*2;
		memcpy( spsound, temp, size );
	}
#endif

	for( i = 0; i < size / 2; i += 2 )
	{
		// Chronicles of the Sword - cutscene (xa), speech (cdda)
		if( attenuate_type == XA_ATTENUATE ) {
			lc = (spsound[i+0] * cdr.AttenuatorLeft[0]  + spsound[i+1] * cdr.AttenuatorLeft[1]) / 128;
			rc = (spsound[i+1] * cdr.AttenuatorRight[0] + spsound[i+0] * cdr.AttenuatorRight[1]) / 128;
		} else if( attenuate_type == CDDA_ATTENUATE ) {
			lc = (spsound[i+0] * cdr.AttenuatorLeft[0]  + spsound[i+1] * cdr.AttenuatorRight[1]) / 128;
			rc = (spsound[i+1] * cdr.AttenuatorRight[0] + spsound[i+0] * cdr.AttenuatorLeft[1]) / 128;
		}

		if( lc < -32768 ) lc = -32768;
		if( rc < -32768 ) rc = -32768;
		if( lc > 32767 ) lc = 32767;
		if( rc > 32767 ) rc = 32767;

		spsound[i + 0] = lc;
		spsound[i + 1] = rc;
	}
}


void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
	cdr.Irq = irq;
	cdr.eCycle = ecycle;

	// Doom: Force rescheduling
	// - Fixes boot
	CDR_INT(ecycle);
}


void Set_Track()
{
	if (CDR_getTN(cdr.ResultTN) != -1) {
		int lcv;

		for( lcv = 1; lcv < cdr.ResultTN[1]; lcv++ ) {
			if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
#ifdef CDR_LOG___0
				CDR_LOG( "settrack %d %d %d | %d %d %d | %d\n",
					cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
					cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
					cdr.CurTrack );
#endif

				// check if time matches track start (only need min, sec accuracy)
				// - m:s:f vs f:s:m
				if( cdr.SetSectorPlay[0] == cdr.ResultTD[2] &&
						cdr.SetSectorPlay[1] == cdr.ResultTD[1] ) {
					// skip pregap frames
					if( cdr.SetSectorPlay[2] < cdr.ResultTD[0] )
						cdr.SetSectorPlay[2] = cdr.ResultTD[0];

					break;
				}
				else if( cdr.SetSectorPlay[0] < cdr.ResultTD[2] )
					break;
			}
		}
	}
}


static u8 fake_subq_local[3], fake_subq_real[3], fake_subq_index, fake_subq_change;
void Create_Fake_Subq()
{
	u8 temp_cur[3], temp_next[3], temp_start[3], pregap;
	int diff;

	if (CDR_getTN(cdr.ResultTN) == -1) return;
	if( cdr.CurTrack+1 <= cdr.ResultTN[1] ) {
		pregap = 150;
		if( CDR_getTD(cdr.CurTrack+1, cdr.ResultTD) == -1 ) return;
	} else {
		// last track - cd size
		pregap = 0;
		if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
	}

	if( cdr.Play == TRUE ) {
		temp_cur[0] = cdr.SetSectorPlay[0];
		temp_cur[1] = cdr.SetSectorPlay[1];
		temp_cur[2] = cdr.SetSectorPlay[2];
	} else {
		temp_cur[0] = btoi( cdr.Prev[0] );
		temp_cur[1] = btoi( cdr.Prev[1] );
		temp_cur[2] = btoi( cdr.Prev[2] );
	}

	fake_subq_real[0] = temp_cur[0];
	fake_subq_real[1] = temp_cur[1];
	fake_subq_real[2] = temp_cur[2];

	temp_next[0] = cdr.ResultTD[2];
	temp_next[1] = cdr.ResultTD[1];
	temp_next[2] = cdr.ResultTD[0];


	// flag- next track
	if( msf2sec(temp_cur) >= msf2sec( temp_next )-pregap ) {
		fake_subq_change = 1;

		cdr.CurTrack++;

		// end cd
		if( pregap == 0 ) StopCdda();
	}

	//////////////////////////////////////////////////
	//////////////////////////////////////////////////

	// repair
	if( cdr.CurTrack <= cdr.ResultTN[1] ) {
		if( CDR_getTD(cdr.CurTrack, cdr.ResultTD) == -1 ) return;
	} else {
		// last track - cd size
		if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
	}
	
	temp_start[0] = cdr.ResultTD[2];
	temp_start[1] = cdr.ResultTD[1];
	temp_start[2] = cdr.ResultTD[0];


#ifdef CDR_LOG
	CDR_LOG( "CDDA FAKE SUB - %d:%d:%d / %d:%d:%d / %d:%d:%d\n",
		temp_cur[0], temp_cur[1], temp_cur[2],
		temp_start[0], temp_start[1], temp_start[2],
		temp_next[0], temp_next[1], temp_next[2]);
#endif



	// local time - pregap / real
	diff = msf2sec(temp_cur) - msf2sec( temp_start );
	if( diff < 0 ) {
		fake_subq_index = 0;

		sec2msf( -diff, fake_subq_local );
	} else {
		fake_subq_index = 1;

		sec2msf( diff, fake_subq_local );
	}
}


void cdrPlayInterrupt_Autopause()
{
	if ((cdr.Mode & (MODE_AUTOPAUSE|MODE_CDDA)) != (MODE_AUTOPAUSE|MODE_CDDA)) return;

	// Reschedule IRQ
	if ( cdr.Irq || cdr.Stat ) {
#ifdef CDR_LOG
	CDR_LOG("=== BUSY === cdrPlayInterrupt\n");
#endif

		//CDRPLAY_INT( 0x800 );
		return;
	}
	

	if( CDR_getStatus(&stat) == -1) return;

	subq = (struct SubQ *)CDR_getBufferSub();

	if (subq != NULL ) {
#ifdef CDR_LOG
		CDR_LOG( "CDDA SUB - %X:%X:%X\n", 
			subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
#endif

		/*
		CDDA Autopause

		Silhouette Mirage ($3)
		Tomb Raider 1 ($7)
		*/

		if( cdr.CurTrack < btoi( subq->TrackNumber ) ) {
#ifdef CDR_LOG
			CDR_LOG( "CDDA STOP\n" );
#endif

			// Magic the Gathering
			// - looping territory cdda

			// ...?
			//cdr.ResultReady = 1;
			//cdr.Stat = DataReady;
			cdr.Stat = DataEnd;
			psxHu32ref(0x1070) |= SWAP32((u32)0x4);


			StopCdda();
		}
	} else {
#ifdef CDR_LOG___0
		CDR_LOG( "CDDA FAKE SUB - %d:%d:%d\n", 
			temp_cur[0], temp_cur[1], temp_cur[2] );
#endif
									
		//if( msf2sec(temp_cur) >= msf2sec( temp_next ) ) {
		if( fake_subq_change ) {
#ifdef CDR_LOG
			CDR_LOG( "CDDA STOP\n" );
#endif
			
			// Magic the Gathering
			// - looping territory cdda

			// ...?
			//cdr.ResultReady = 1;
			//cdr.Stat = DataReady;
			cdr.Stat = DataEnd;
			psxHu32ref(0x1070) |= SWAP32((u32)0x4);


			StopCdda();
									
			fake_subq_change = 0;
		}
	}
}


void cdrPlayInterrupt_Repplay()
{
	// BIOS - HACK: Switch between local / absolute times
	static u8 report_time = 1;


	if ((cdr.Mode & (MODE_REPORT|MODE_CDDA)) != (MODE_REPORT|MODE_CDDA)) return;

#ifdef CDR_LOG
	CDR_LOG("cdrRepplayInterrupt() Log: KEY END\n");
#endif

	// Doom - no more cdda playing
	// - fixes boot with irq cmd reschedule

	// Reschedule IRQ
	if ( cdr.Irq || cdr.Stat ) {
#ifdef CDR_LOG
		CDR_LOG("=== BUSY === cdrRepplayInterrupt\n");
#endif

		//CDREPPLAY_INT( 0x800 );
		return;
	}
	
	
	memset( cdr.Result, 0, 8 );
	if( CDR_getStatus(&stat) == -1) return;

	cdr.Result[0] = cdr.StatP;


	subq = (struct SubQ *)CDR_getBufferSub();
	if (subq != NULL ) {
#ifdef CDR_LOG
		CDR_LOG( "REPPLAY SUB - %X:%X:%X\n", 
			subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
#endif


		/*
		skip subQ integrity check (audio playback)
		- mainly useful for DATA LibCrypt checking
		*/
		//if( SWAP16(subq->CRC) != calcCrc((unsigned char *)subq + 12, 10) )

		// Rayman: audio pregap flag / track change
		// - not all CDs will use PREGAPs, so we track it manually
		if( cdr.CurTrack < btoi( subq->TrackNumber ) ) {
			cdr.Result[0] |= 0x10;

			cdr.CurTrack = btoi( subq->TrackNumber );
		}


		// BIOS CD Player: data already BCD format
		cdr.Result[1] = subq->TrackNumber;
		cdr.Result[2] = subq->IndexNumber;


		// BIOS CD Player: switch between local / absolute times
		if( report_time == 0 ) {
			cdr.Result[3] = subq->AbsoluteAddress[0];
			cdr.Result[4] = subq->AbsoluteAddress[1];
			cdr.Result[5] = subq->AbsoluteAddress[2];

			report_time = 1;
		}	else {
			cdr.Result[3] = subq->TrackRelativeAddress[0];
			cdr.Result[4] = subq->TrackRelativeAddress[1];
			cdr.Result[5] = subq->TrackRelativeAddress[2];

			cdr.Result[4] |= 0x80;

			report_time = 0;
		}
	} else {
#ifdef CDR_LOG___0
		CDR_LOG( "REPPLAY FAKE - %d:%d:%d\n", 
			temp_cur[0], temp_cur[1], temp_cur[2] );
#endif

		// Rayman: check track change
		//if( msf2sec(temp_cur) >= msf2sec( temp_next ) ) {
		if( fake_subq_change ) {
#ifdef CDR_LOG___0
			CDR_LOG( "TRACK CHANGE %d - %d %d %d ==> %d %d %d\n",
				cdr.CurTrack,
				temp_cur[0], temp_cur[1], temp_cur[2],
				temp_next[0], temp_next[1], temp_next[2] );
#endif

			cdr.Result[0] |= 0x10;
									
			fake_subq_change = 0;
		}


		// track # / index #
		cdr.Result[1] = itob(cdr.CurTrack);
		cdr.Result[2] = itob(fake_subq_index);

		if( report_time == 0 ) {
			// absolute
			cdr.Result[3] = itob( fake_subq_real[0] );
			cdr.Result[4] = itob( fake_subq_real[1] );
			cdr.Result[5] = itob( fake_subq_real[2] );

			report_time = 1;
		} else {
			// local
			cdr.Result[3] = itob( fake_subq_local[0] );
			cdr.Result[4] = itob( fake_subq_local[1] );
			cdr.Result[5] = itob( fake_subq_local[2] );

			cdr.Result[4] |= 0x80;

			report_time = 0;
		}

		cdr.Result[6] = 0;
		cdr.Result[7] = 0;
	}


	// Rayman: Logo freeze (resultready + dataready)
	cdr.ResultReady = 1;
	cdr.Stat = DataReady;

	SetResultSize(8);
	psxHu32ref(0x1070) |= SWAP32((u32)0x4);
}

	
void cdrPlayInterrupt()
{
	if( !cdr.Play ) return;

	//////////////////////////////////////////
	//////////////////////////////////////////

#ifdef CDR_LOG
	CDR_LOG( "CDDA - %d:%d:%d\n", 
		cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
#endif


	{
		u8 temp[3];

		temp[0] = itob(cdr.SetSectorPlay[0]);
		temp[1] = itob(cdr.SetSectorPlay[1]);
		temp[2] = itob(cdr.SetSectorPlay[2]);

		// get subq
		CDR_readTrack( temp );
	}

	if( CDR_readCDDA ) {
		CDR_readCDDA( cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2], cdr.Transfer );

		CDXA_Attenuation( (short *) cdr.Transfer, 2352, 1, CDDA_ATTENUATE );
	}



	// mute data track
	if( (Config.Cdda) ||
			(CDR_getStatus(&stat) != -1 && stat.Type == 1 && cdr.CurTrack == 1) ) 
		memset( cdr.Transfer, 0, CD_FRAMESIZE_RAW );


	if( SPU_playCDDAchannel)
		SPU_playCDDAchannel((short *)cdr.Transfer, CD_FRAMESIZE_RAW);

	CDRPLAY_INT( cdReadTime );

	//////////////////////////////////////////
	//////////////////////////////////////////

	subq = (struct SubQ *)CDR_getBufferSub();
	if (subq == NULL )
		Create_Fake_Subq();

	cdrPlayInterrupt_Autopause();
	cdrPlayInterrupt_Repplay();

	//////////////////////////////////////////
	//////////////////////////////////////////

	cdr.SetSectorPlay[2]++;
	if (cdr.SetSectorPlay[2] == 75) {
		cdr.SetSectorPlay[2] = 0;
		cdr.SetSectorPlay[1]++;
		if (cdr.SetSectorPlay[1] == 60) {
			cdr.SetSectorPlay[1] = 0;
			cdr.SetSectorPlay[0]++;
		}
	}


	Check_Shell(0);
}


void cdrInterrupt() {
	int i;
	unsigned char Irq = cdr.Irq;

	// Reschedule IRQ
	if (cdr.Stat) {
		CDR_INT( 0x100 );
		return;
	}

	cdr.Irq = 0xff;
	cdr.Ctrl &= ~0x80;

	switch (Irq) {
		case CdlSync:
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
			cdr.Result[0] = cdr.StatP;
			cdr.Stat = Acknowledge;
			break;

		case CdlNop:
			SetResultSize(1);
			cdr.Result[0] = cdr.StatP;
			cdr.Stat = Acknowledge;

			if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
			break;

		case CdlSetloc:
			cdr.CmdProcess = 0;
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
			cdr.Result[0] = cdr.StatP;
			cdr.Stat = Acknowledge;
			break;

		case CdlPlay:
			fake_subq_change = 0;

			if( cdr.Seeked == FALSE ) {
				memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
				cdr.Seeked = TRUE;
			}

			/*
			Rayman: detect track changes
			- fixes logo freeze

			Twisted Metal 2: skip PREGAP + starting accurate SubQ
			- plays tracks without retry play

			Wild 9: skip PREGAP + starting accurate SubQ
			- plays tracks without retry play
			*/
			Set_Track();
			Find_CurTrack();
			ReadTrack( cdr.SetSectorPlay );

            // Chronicles of the Sword - getlocp timing
            Create_Fake_Subq();

			// GameShark CD Player: Calls 2x + Play 2x
			if( cdr.FastBackward || cdr.FastForward ) {
				if( cdr.FastForward ) cdr.FastForward--;
				if( cdr.FastBackward ) cdr.FastBackward--;

				if( cdr.FastBackward == 0 && cdr.FastForward == 0 ) {
					if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
						cdr.SetSectorPlay[0] = stat.Time[0];
						cdr.SetSectorPlay[1] = stat.Time[1];
						cdr.SetSectorPlay[2] = stat.Time[2];
					}
				}
			}


			if (!Config.Cdda) {
				// BIOS CD Player
				// - Pause player, hit Track 01/02/../xx (Setloc issued!!)

				// GameShark CD Player: Resume play
				if( cdr.ParamC == 0 ) {
#ifdef CDR_LOG___0
					CDR_LOG( "PLAY Resume @ %d:%d:%d\n",
						cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
#endif

					//CDR_play( cdr.SetSectorPlay );
				}
				else
				{
					// BIOS CD Player: Resume play
					if( cdr.Param[0] == 0 ) {
#ifdef CDR_LOG___0
						CDR_LOG( "PLAY Resume T0 @ %d:%d:%d\n",
							cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
#endif

						//CDR_play( cdr.SetSectorPlay );
					}
					else {
#ifdef CDR_LOG___0
						CDR_LOG( "PLAY Resume Td @ %d:%d:%d\n",
							cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
#endif

						// BIOS CD Player: Allow track replaying
						StopCdda();


						cdr.CurTrack = btoi( cdr.Param[0] );

						if (CDR_getTN(cdr.ResultTN) != -1) {
							// check last track
							if (cdr.CurTrack > cdr.ResultTN[1])
								cdr.CurTrack = cdr.ResultTN[1];

							if (CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD) != -1) {
								cdr.SetSectorPlay[0] = cdr.ResultTD[2];
								cdr.SetSectorPlay[1] = cdr.ResultTD[1];
								cdr.SetSectorPlay[2] = cdr.ResultTD[0];

								// reset data
								Set_Track();
								Find_CurTrack();
								ReadTrack( cdr.SetSectorPlay );

								//CDR_play(cdr.SetSectorPlay);
							}
						}
					}
				}
			}


			// Vib Ribbon: gameplay checks flag
			cdr.StatP &= ~STATUS_SEEK;


			cdr.CmdProcess = 0;
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
			cdr.Result[0] = cdr.StatP;
			cdr.Stat = Acknowledge;

			cdr.StatP |= STATUS_PLAY;

			
			// BIOS player - set flag again
			cdr.Play = TRUE;

			CDRPLAY_INT( cdReadTime );
			break;

    	case CdlForward:
			cdr.CmdProcess = 0;
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
     	cdr.Result[0] = cdr.StatP;
     	cdr.Stat = Complete;


			// GameShark CD Player: Calls 2x + Play 2x
			if( cdr.FastForward == 0 ) cdr.FastForward = 2;
			else cdr.FastForward++;

			cdr.FastBackward = 0;
			break;

    	case CdlBackward:
			cdr.CmdProcess = 0;
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
      cdr.Result[0] = cdr.StatP;
      cdr.Stat = Complete;


			// GameShark CD Player: Calls 2x + Play 2x
			if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
			else cdr.FastBackward++;

			cdr.FastForward = 0;
			break;

    	case CdlStandby:
			cdr.CmdProcess = 0;
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
			cdr.Result[0] = cdr.StatP;
			cdr.Stat = Complete;
			break;

		case CdlStop:
			cdr.CmdProcess = 0;
			SetResultSize(1);
			cdr.StatP &= ~STATUS_ROTATING;
			cdr.Result[0] = cdr.StatP;
			cdr.Stat = Complete;
//			cdr.Stat = Acknowledge;

			if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
			break;

		case CdlPause:
			SetResultSize(1);
			cdr.Result[0] = cdr.StatP;
			cdr.Stat = Acknowledge;
			/*
			Gundam Battle Assault 2: much slower (*)
			- Fixes boot, gameplay

			Hokuto no Ken 2: slower
			- Fixes intro + subtitles

			InuYasha - Feudal Fairy Tale: slower
			- Fixes battles
			*/
			AddIrqQueue(CdlPause + 0x20, cdReadTime * 3);
			cdr.Ctrl |= 0x80;
			break;

		case CdlPause + 0x20:
			SetResultSize(1);
        	cdr.StatP &= ~STATUS_READ;
			cdr.StatP |= STATUS_ROTATING;
			cdr.Result[0] = cdr.StatP;
        	cdr.Stat = Complete;
			break;

    	case CdlInit:
			SetResultSize(1);
        	cdr.StatP = STATUS_ROTATING;
			cdr.Result[0] = cdr.StatP;
        	cdr.Stat = Acknowledge;
//			if (!cdr.Init) {
				AddIrqQueue(CdlInit + 0x20, 0x800);
//			}
        	break;

		case CdlInit + 0x20:
			SetResultSize(1);
			cdr.Result[0] = cdr.StatP;
        	cdr.Stat = Complete;
			cdr.Init = 1;
			break;

    	case CdlMute:
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
        	cdr.Result[0] = cdr.StatP;
        	cdr.Stat = Acknowledge;
			break;

    	case CdlDemute:
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
        	cdr.Result[0] = cdr.StatP;
        	cdr.Stat = Acknowledge;
			break;

    	case CdlSetfilter:
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
        	cdr.Result[0] = cdr.StatP;
        	cdr.Stat = Acknowledge;
        	break;

		case CdlSetmode:
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
        	cdr.Result[0] = cdr.StatP;
        	cdr.Stat = Acknowledge;
        	break;

    	case CdlGetmode:
			SetResultSize(6);
			cdr.StatP |= STATUS_ROTATING;
        	cdr.Result[0] = cdr.StatP;
        	cdr.Result[1] = cdr.Mode;
        	cdr.Result[2] = cdr.File;
        	cdr.Result[3] = cdr.Channel;
        	cdr.Result[4] = 0;
        	cdr.Result[5] = 0;
        	cdr.Stat = Acknowledge;
        	break;

    case CdlGetlocL:
			SetResultSize(8);
     	for (i = 0; i < 8; i++)
				cdr.Result[i] = cdr.Transfer[i];
			cdr.Stat = Acknowledge;
      break;

		case CdlGetlocP:
			// GameShark CDX CD Player: uses 17 bytes output (wraps around)
			SetResultSize(17);
			memset( cdr.Result, 0, 16 );

			subq = (struct SubQ *)CDR_getBufferSub();

			if (subq != NULL) {
				cdr.Result[0] = subq->TrackNumber;
				cdr.Result[1] = subq->IndexNumber;
				memcpy(cdr.Result+2, subq->TrackRelativeAddress, 3);
				memcpy(cdr.Result+5, subq->AbsoluteAddress, 3);


				// subQ integrity check - data only (skip audio)
				if( subq->TrackNumber == 1 && stat.Type == 0x01 ) {
					if (calcCrc((u8 *)subq + 12, 10) != (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
						memset(cdr.Result + 2, 0, 3 + 3); // CRC wrong, wipe out time data
					}
				}
			} else {
				if( cdr.Play == FALSE ) Create_Fake_Subq();


				// track # / index #
				cdr.Result[0] = itob(cdr.CurTrack);
				cdr.Result[1] = itob(fake_subq_index);

				// local
				cdr.Result[2] = itob( fake_subq_local[0] );
				cdr.Result[3] = itob( fake_subq_local[1] );
				cdr.Result[4] = itob( fake_subq_local[2] );

				// absolute
				cdr.Result[5] = itob( fake_subq_real[0] );
				cdr.Result[6] = itob( fake_subq_real[1] );
				cdr.Result[7] = itob( fake_subq_real[2] );
			}

			// redump.org - wipe time
			if( !cdr.Play && CheckSBI(cdr.Result+5) ) {
				memset( cdr.Result+2, 0, 6 );
			}

			cdr.Stat = Acknowledge;
			break;

    	case CdlGetTN:
			// 5-Star Racing: don't stop CDDA
			//
			// Vib Ribbon: CD swap
			StopReading();

			cdr.CmdProcess = 0;
			SetResultSize(3);
			cdr.StatP |= STATUS_ROTATING;
        	cdr.Result[0] = cdr.StatP;
        	if (CDR_getTN(cdr.ResultTN) == -1) {
				cdr.Stat = DiskError;
				cdr.Result[0] |= STATUS_ERROR;
        	} else {
        		cdr.Stat = Acknowledge;
        	    cdr.Result[1] = itob(cdr.ResultTN[0]);
        	    cdr.Result[2] = itob(cdr.ResultTN[1]);
        	}
        	break;

    	case CdlGetTD:
			cdr.CmdProcess = 0;
			cdr.Track = btoi(cdr.Param[0]);
			SetResultSize(4);
			cdr.StatP |= STATUS_ROTATING;
			if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
				cdr.Stat = DiskError;
				cdr.Result[0] |= STATUS_ERROR;
			} else {
				cdr.Stat = Acknowledge;
				cdr.Result[0] = cdr.StatP;
				cdr.Result[1] = itob(cdr.ResultTD[2]);
				cdr.Result[2] = itob(cdr.ResultTD[1]);
				cdr.Result[3] = itob(cdr.ResultTD[0]);
			}
			break;

    	case CdlSeekL:
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
        	cdr.Result[0] = cdr.StatP;
			cdr.StatP |= STATUS_SEEK;
        	cdr.Stat = Acknowledge;

			/*
			Crusaders of Might and Magic = 0.5x-4x
			- fix cutscene speech start

			Eggs of Steel = 2x-?
			- fix new game

			Medievil = ?-4x
			- fix cutscene speech

			Rockman X5 = 0.5-4x
			- fix capcom logo
			*/
			AddIrqQueue(CdlSeekL + 0x20, cdReadTime * 4);
			break;

    	case CdlSeekL + 0x20:
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
			cdr.StatP &= ~STATUS_SEEK;
        	cdr.Result[0] = cdr.StatP;
			cdr.Seeked = TRUE;
        	cdr.Stat = Complete;

			
			// Mega Man Legends 2: must update read cursor for getlocp
			ReadTrack( cdr.SetSector );
			break;

    	case CdlSeekP:
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
        	cdr.Result[0] = cdr.StatP;
			cdr.StatP |= STATUS_SEEK;
        	cdr.Stat = Acknowledge;
			AddIrqQueue(CdlSeekP + 0x20, cdReadTime * 1);
			break;

    	case CdlSeekP + 0x20:
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
			cdr.StatP &= ~STATUS_SEEK;
			cdr.Result[0] = cdr.StatP;
			cdr.Stat = Complete;
			cdr.Seeked = TRUE;

			// GameShark Music Player
			memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );

			// Tomb Raider 2: must update read cursor for getlocp
			Find_CurTrack();
			ReadTrack( cdr.SetSectorPlay );
			break;

		case CdlTest:
        	cdr.Stat = Acknowledge;
        	switch (cdr.Param[0]) {
        	    case 0x20: // System Controller ROM Version
					SetResultSize(4);
					memcpy(cdr.Result, Test20, 4);
					break;
				case 0x22:
					SetResultSize(8);
					memcpy(cdr.Result, Test22, 4);
					break;
				case 0x23: case 0x24:
					SetResultSize(8);
					memcpy(cdr.Result, Test23, 4);
					break;
        	}
			break;

    	case CdlID:
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
        	cdr.Result[0] = cdr.StatP;
        	cdr.Stat = Acknowledge;
			AddIrqQueue(CdlID + 0x20, 0x800);
			break;

		case CdlID + 0x20:
			SetResultSize(8);

			if (CDR_getStatus(&stat) == -1) {
				cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
				cdr.Result[1] = 0x80; // 0x80 leads to the menu in the bios, else loads CD
			}
			else {
				if (stat.Type == 2) {
					// Music CD
					cdr.Result[0] = 0x08;
					cdr.Result[1] = 0x10;

					cdr.Result[1] |= 0x80;
				}
				else {
					// Data CD
					if (CdromId[0] == '\0') {
						cdr.Result[0] = 0x00;
						cdr.Result[1] = 0x80;
					}
					else {
						cdr.Result[0] = 0x08;
						cdr.Result[1] = 0x00;
					}
				}
			}

			cdr.Result[2] = 0x00;
			cdr.Result[3] = 0x00;
			strncpy((char *)&cdr.Result[4], "PCSX", 4);
			cdr.Stat = Complete;
			break;

		case CdlReset:
			SetResultSize(1);
        	cdr.StatP = STATUS_ROTATING;
			cdr.Result[0] = cdr.StatP;
        	cdr.Stat = Acknowledge;
			break;

		case CdlReadT:
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
			cdr.Result[0] = cdr.StatP;
			cdr.Stat = Acknowledge;
			AddIrqQueue(CdlReadT + 0x20, 0x800);
			break;

		case CdlReadT + 0x20:
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
			cdr.Result[0] = cdr.StatP;
			cdr.Stat = Complete;
			break;

    	case CdlReadToc:
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
        	cdr.Result[0] = cdr.StatP;
        	cdr.Stat = Acknowledge;
			AddIrqQueue(CdlReadToc + 0x20, 0x800);
			break;

    	case CdlReadToc + 0x20:
			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
        	cdr.Result[0] = cdr.StatP;
        	cdr.Stat = Complete;
			break;

		case AUTOPAUSE:
			cdr.OCUP = 0;
/*			SetResultSize(1);
			StopCdda();
			StopReading();
			cdr.OCUP = 0;
        	cdr.StatP&=~0x20;
			cdr.StatP|= 0x2;
        	cdr.Result[0] = cdr.StatP;
    		cdr.Stat = DataEnd;
*/			AddIrqQueue(CdlPause, 0x800);
			break;

		case READ_ACK:
			if (!cdr.Reading) return;

			
			// Fighting Force 2 - update subq time immediately
			// - fixes new game
			ReadTrack( cdr.SetSector );


			// Crusaders of Might and Magic - update getlocl now
			// - fixes cutscene speech
			{
				u8 *buf = CDR_getBuffer();
				memcpy(cdr.Transfer, buf, 8);
			}
			
			
			/*
			Duke Nukem: Land of the Babes - seek then delay read for one frame
			- fixes cutscenes
			*/

			if (!cdr.Seeked) {
				cdr.Seeked = TRUE;

				cdr.StatP |= STATUS_SEEK;
				cdr.StatP &= ~STATUS_READ;

				// Crusaders of Might and Magic - use short time
				// - fix cutscene speech (startup)

				// ??? - use more accurate seek time later
				CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime) : cdReadTime * 2);
			} else {
				cdr.StatP |= STATUS_READ;
				cdr.StatP &= ~STATUS_SEEK;

				CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime) : cdReadTime * 2);
			}

			SetResultSize(1);
			cdr.StatP |= STATUS_ROTATING;
			cdr.Result[0] = cdr.StatP;
			cdr.Stat = Acknowledge;
			break;

		case 0xff:
			return;

		default:
			cdr.Stat = Complete;
			break;
	}

	Check_Shell( Irq );

	if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18) {
		psxHu32ref(0x1070) |= SWAP32((u32)0x4);
	}

#ifdef CDR_LOG
	CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq);
#endif
}

void cdrReadInterrupt() {
	u8 *buf;

	if (!cdr.Reading)
		return;

	if (cdr.Irq || cdr.Stat) {
		CDREAD_INT(0x100);
		return;
	}

#ifdef CDR_LOG
	CDR_LOG("cdrReadInterrupt() Log: KEY END");
#endif

    cdr.OCUP = 1;
	SetResultSize(1);
	cdr.StatP |= STATUS_READ|STATUS_ROTATING;
	cdr.StatP &= ~STATUS_SEEK;
    cdr.Result[0] = cdr.StatP;

	ReadTrack( cdr.SetSector );

	buf = CDR_getBuffer();
	if (buf == NULL)
		cdr.RErr = -1;

	if (cdr.RErr == -1) {
#ifdef CDR_LOG
		fprintf(emuLog, "cdrReadInterrupt() Log: err\n");
#endif
		memset(cdr.Transfer, 0, DATA_SIZE);
		cdr.Stat = DiskError;
		cdr.Result[0] |= STATUS_ERROR;
		CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
		return;
	}

	memcpy(cdr.Transfer, buf, DATA_SIZE);
	CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);


#ifdef CDR_LOG
	fprintf(emuLog, "cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
#endif

	if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
		// Firemen 2: Multi-XA files - briefings, cutscenes
		if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
			cdr.File = cdr.Transfer[4 + 0];
			cdr.Channel = cdr.Transfer[4 + 1];
		}

		if((cdr.Transfer[4 + 2] & 0x4) &&
			 (cdr.Transfer[4 + 1] == cdr.Channel) &&
			 (cdr.Transfer[4 + 0] == cdr.File)) {
			int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);

			if (!ret) {
#if 0
				int xa_type;

				// save - set only for FirstSector
				xa_type = cdr.Xa.stereo;


				// Duke Nukem - Time to Kill - speech, music volume control
				// Tekken 3 - post-match fade out
				if( cdr.Xa.stereo == 0 )
					CDXA_Attenuation( cdr.Xa.pcm, cdr.Xa.nsamples * 2, cdr.Xa.stereo, XA_ATTENUATE );
				else
					CDXA_Attenuation( cdr.Xa.pcm, cdr.Xa.nsamples * 4, cdr.Xa.stereo, XA_ATTENUATE );


				// fix mono xa attenuation
				if( cdr.Xa.stereo == 0 ) cdr.Xa.stereo = 1;
#endif

				SPU_playADPCMchannel(&cdr.Xa);
				cdr.FirstSector = 0;


#if 0
				cdr.Xa.stereo = xa_type;
#endif


#if 0
				// Crash Team Racing: music, speech
				// - done using cdda decoded buffer (spu irq)
				// - don't do here

				// signal ADPCM data ready
				psxHu32ref(0x1070) |= SWAP32((u32)0x200);
#endif
			}
			else cdr.FirstSector = -1;
		}
	}

	cdr.SetSector[2]++;
    if (cdr.SetSector[2] == 75) {
        cdr.SetSector[2] = 0;
        cdr.SetSector[1]++;
        if (cdr.SetSector[1] == 60) {
            cdr.SetSector[1] = 0;
            cdr.SetSector[0]++;
        }
    }

    cdr.Readed = 0;

	// G-Police: Don't autopause ADPCM even if mode set (music)
	if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & MODE_AUTOPAUSE) &&
			(cdr.Transfer[4 + 2] & 0x4) != 0x4 ) { // EOF
#ifdef CDR_LOG
		CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n");
#endif
//		AddIrqQueue(AUTOPAUSE, 0x2000);
		AddIrqQueue(CdlPause, 0x2000);
	}
	else {
		CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
	}

	/*
	Croc 2: $40 - only FORM1 (*)
	Judge Dredd: $C8 - only FORM1 (*)
	Sim Theme Park - no adpcm at all (zero)
	*/

	if( (cdr.Mode & MODE_STRSND) == 0 || (cdr.Transfer[4+2] & 0x4) != 0x4 ) {
        cdr.Stat = DataReady;
    } else {
		// Breath of Fire 3 - fix inn sleeping
		// Rockman X5 - no music restart problem
        cdr.Stat = NoIntr;
    }
    psxHu32ref(0x1070) |= SWAP32((u32)0x4);

	Check_Shell(0);
}

/*
cdrRead0:
	bit 0 - 0 REG1 command send / 1 REG1 data read
	bit 1 - 0 data transfer finish / 1 data transfer ready/in progress
	bit 2 - unknown
	bit 3 - unknown
	bit 4 - unknown
	bit 5 - 1 result ready
	bit 6 - 1 dma ready
	bit 7 - 1 command being processed
*/

unsigned char cdrRead0(void) {
	if (cdr.ResultReady)
		cdr.Ctrl |= 0x20;
	else
		cdr.Ctrl &= ~0x20;

	if (cdr.OCUP)
		cdr.Ctrl |= 0x40;
//  else
//		cdr.Ctrl &= ~0x40;

	// What means the 0x10 and the 0x08 bits? I only saw it used by the bios
	cdr.Ctrl |= 0x18;

#ifdef CDR_LOG
	CDR_LOG("cdrRead0() Log: CD0 Read: %x\n", cdr.Ctrl);
#endif

	return psxHu8(0x1800) = cdr.Ctrl;
}

/*
cdrWrite0:
	0 - to send a command / 1 - to get the result
*/

void cdrWrite0(unsigned char rt) {
#ifdef CDR_LOG
	CDR_LOG("cdrWrite0() Log: CD0 write: %x\n", rt);
#endif
	cdr.Ctrl = rt | (cdr.Ctrl & ~0x3);

	if (rt == 0) {
		cdr.ParamP = 0;
		cdr.ParamC = 0;
		cdr.ResultReady = 0;
	}

	// Tekken: CDXA fade-out
	else if( rt == 2 ) {
		//cdr.AttenuatorLeft[0] = 0;
		//cdr.AttenuatorLeft[1] = 0;
	}
	else if( rt == 3 ) {
		// Tekken 3 - character menu (don't do this!)
		//cdr.AttenuatorRight[0] = 0;
		//cdr.AttenuatorRight[1] = 0;
	}
}

unsigned char cdrRead1(void) {
  if (cdr.ResultReady) { // && cdr.Ctrl & 0x1) {
		// GameShark CDX CD Player: uses 17 bytes output (wraps around)
		psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
		cdr.ResultP++;
		if (cdr.ResultP == cdr.ResultC)
			cdr.ResultReady = 0;
	} else {
		psxHu8(0x1801) = 0;
	}
#ifdef CDR_LOG
	CDR_LOG("cdrRead1() Log: CD1 Read: %x\n", psxHu8(0x1801));
#endif
	return psxHu8(0x1801);
}

void cdrWrite1(unsigned char rt) {
	int i;

#ifdef CDR_LOG
	CDR_LOG("cdrWrite1() Log: CD1 write: %x (%s)\n", rt, CmdName[rt]);
#endif


	// Tekken: CDXA fade-out
	if( (cdr.Ctrl & 3) == 3 ) {
		cdr.AttenuatorRight[0] = rt;
	}


	//	psxHu8(0x1801) = rt;
  cdr.Cmd = rt;
	cdr.OCUP = 0;

#ifdef CDRCMD_DEBUG
	SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
	if (cdr.ParamC) {
		SysPrintf(" Param[%d] = {", cdr.ParamC);
		for (i = 0; i < cdr.ParamC; i++)
			SysPrintf(" %x,", cdr.Param[i]);
		SysPrintf("}\n");
	} else {
		SysPrintf("\n");
	}
#endif

	if (cdr.Ctrl & 0x1) return;

    switch (cdr.Cmd) {
    	case CdlSync:
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);
        	break;

    	case CdlNop:
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;

				// Twisted Metal 3 - fix music
    		AddIrqQueue(cdr.Cmd, 0x800);
        	break;

    	case CdlSetloc:
				StopReading();
				cdr.Seeked = FALSE;
        for (i = 0; i < 3; i++)
					cdr.SetSector[i] = btoi(cdr.Param[i]);
        cdr.SetSector[3] = 0;

#ifdef DVD5_HACK
				// PS1 DVD5 hack (shalma's disc combining kits)
				dvd5_mode = cdr.Param[2] & 0x80;

				if( CDR__setDVD5 ) {
					if( cdr.Param[2] & 0x80 )
						CDR__setDVD5(1);
					else if( cdr.Param[1] & 0x80 )
						CDR__setDVD5(2);
					else
						CDR__setDVD5(0);
				}

				cdr.Param[1] &= 0x7f;
				cdr.Param[2] &= 0x7f;
#endif

				/*
				if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) {
					*(u32 *)cdr.SetSector = *(u32 *)cdr.SetSectorSeek;
				}*/

				cdr.Ctrl |= 0x80;
        cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);
        break;

			case CdlPlay:
				// Vib Ribbon: try same track again
				StopCdda();

				// Vib Ribbon - decoded buffer IRQ for CDDA reading
				// - fixes ribbon timing + music CD mode
				CDRDBUF_INT( PSXCLK / 44100 * 0x100 );


				cdr.Play = TRUE;

				cdr.StatP |= STATUS_SEEK;
				cdr.StatP &= ~STATUS_ROTATING;

				cdr.Ctrl |= 0x80;
				cdr.Stat = NoIntr;
				AddIrqQueue(cdr.Cmd, 0x800);
				break;

    	case CdlForward:
        //if (cdr.CurTrack < 0xaa)
				//	cdr.CurTrack++;
				cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);
        break;

    	case CdlBackward:
        //if (cdr.CurTrack > 1)
					//cdr.CurTrack--;
				cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);
        break;

    	case CdlReadN:
			cdr.Irq = 0;
			StopReading();
			cdr.Ctrl|= 0x80;
        	cdr.Stat = NoIntr;
			StartReading(1, 0x800);
        	break;

    	case CdlStandby:
			StopCdda();
			StopReading();
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);
        	break;

    	case CdlStop:
				// GameShark CD Player: Reset CDDA to track start
				if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
					cdr.SetSectorPlay[0] = stat.Time[0];
					cdr.SetSectorPlay[1] = stat.Time[1];
					cdr.SetSectorPlay[2] = stat.Time[2];

					Find_CurTrack();


					// grab time for current track
					CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);

					cdr.SetSectorPlay[0] = cdr.ResultTD[2];
					cdr.SetSectorPlay[1] = cdr.ResultTD[1];
					cdr.SetSectorPlay[2] = cdr.ResultTD[0];
				}

				StopCdda();
				StopReading();

				cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);
       	break;

    	case CdlPause:
				/*
				GameShark CD Player: save time for resume

				Twisted Metal - World Tour: don't mix Setloc / CdlPlay cursors
				*/

				StopCdda();
				StopReading();
				cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);
        break;

		case CdlReset:
    	case CdlInit:
			StopCdda();
			StopReading();
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);
        	break;

    	case CdlMute:
        	cdr.Muted = TRUE;
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);

			// Duke Nukem - Time to Kill
			// - do not directly set cd-xa volume
			//SPU_writeRegister( H_CDLeft, 0x0000 );
			//SPU_writeRegister( H_CDRight, 0x0000 );
        	break;

    	case CdlDemute:
        	cdr.Muted = FALSE;
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);

			// Duke Nukem - Time to Kill
			// - do not directly set cd-xa volume
			//SPU_writeRegister( H_CDLeft, 0x7f00 );
			//SPU_writeRegister( H_CDRight, 0x7f00 );
        	break;

    	case CdlSetfilter:
        	cdr.File = cdr.Param[0];
        	cdr.Channel = cdr.Param[1];
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);
        	break;

    	case CdlSetmode:
#ifdef CDR_LOG
			CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
#endif
        	cdr.Mode = cdr.Param[0];
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);

			// Squaresoft on PlayStation 1998 Collector's CD Vol. 1
			// - fixes choppy movie sound
			if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
				StopCdda();
        	break;

    	case CdlGetmode:
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);
        	break;

    	case CdlGetlocL:
				cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;

				// Crusaders of Might and Magic - cutscene speech
				AddIrqQueue(cdr.Cmd, 0x800);
     		break;

    	case CdlGetlocP:
				cdr.Ctrl |= 0x80;
	  		cdr.Stat = NoIntr;
				
				// GameShark CDX / Lite Player: pretty narrow time window
				// - doesn't always work due to time inprecision
				//AddIrqQueue(cdr.Cmd, 0x28);

				// Tomb Raider 2 - cdda
				AddIrqQueue(cdr.Cmd, 0x40);
       	break;

    	case CdlGetTN:
				cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		//AddIrqQueue(cdr.Cmd, 0x800);

				// GameShark CDX CD Player: very long time
				AddIrqQueue(cdr.Cmd, 0x100000);
        break;

    	case CdlGetTD:
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);
        	break;

    	case CdlSeekL:
//			((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);

				StopCdda();
				StopReading();

        	break;

    	case CdlSeekP:
//        	((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;

				// Tomb Raider 2 - reset cdda
				StopCdda();
				StopReading();

    		AddIrqQueue(cdr.Cmd, 0x800);
        	break;

		// Destruction Derby: read TOC? GetTD after this
		case CdlReadT:
			cdr.Ctrl |= 0x80;
			cdr.Stat = NoIntr;
			AddIrqQueue(cdr.Cmd, 0x800);
			break;

    	case CdlTest:
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);
        	break;

    	case CdlID:
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);
        	break;

    	case CdlReadS:
			cdr.Irq = 0;
			StopReading();
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
			StartReading(2, 0x800);
        	break;

    	case CdlReadToc:
			cdr.Ctrl |= 0x80;
    		cdr.Stat = NoIntr;
    		AddIrqQueue(cdr.Cmd, 0x800);
        	break;

    	default:
#ifdef CDR_LOG
			CDR_LOG("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
#endif
			return;
    }
	if (cdr.Stat != NoIntr) {
		psxHu32ref(0x1070) |= SWAP32((u32)0x4);
	}
}

unsigned char cdrRead2(void) {
	unsigned char ret;

	if (cdr.Readed == 0) {
		ret = 0;
	} else {
		ret = cdr.Transfer[cdr.transferIndex];
		cdr.transferIndex++;
		adjustTransferIndex();
	}

#ifdef CDR_LOG
	CDR_LOG("cdrRead2() Log: CD2 Read: %x\n", ret);
#endif
	return ret;
}

void cdrWrite2(unsigned char rt) {
#ifdef CDR_LOG
	CDR_LOG("cdrWrite2() Log: CD2 write: %x\n", rt);
#endif


	// Tekken: CDXA fade-out
	if( (cdr.Ctrl & 3) == 2 ) {
		cdr.AttenuatorLeft[0] = rt;
	}
	else if( (cdr.Ctrl & 3) == 3 ) {
		cdr.AttenuatorRight[1] = rt;
	}



    if (cdr.Ctrl & 0x1) {
		switch (rt) {
			case 0x07:
	    		cdr.ParamP = 0;
				cdr.ParamC = 0;
				cdr.ResultReady = 1; //0;
				cdr.Ctrl &= ~3; //cdr.Ctrl = 0;
				break;

			default:
				cdr.Reg2 = rt;
				break;
		}
    } else if (!(cdr.Ctrl & 0x1) && cdr.ParamP < 8) {
		cdr.Param[cdr.ParamP++] = rt;
		cdr.ParamC++;
	}
}

unsigned char cdrRead3(void) {
	if (cdr.Stat) {
		if (cdr.Ctrl & 0x1)
			psxHu8(0x1803) = cdr.Stat | 0xE0;
		else
			psxHu8(0x1803) = 0xff;
	} else {
		psxHu8(0x1803) = 0;
	}
#ifdef CDR_LOG
	CDR_LOG("cdrRead3() Log: CD3 Read: %x\n", psxHu8(0x1803));
#endif
	return psxHu8(0x1803);
}

void cdrWrite3(unsigned char rt) {
#ifdef CDR_LOG
	CDR_LOG("cdrWrite3() Log: CD3 write: %x\n", rt);
#endif

	// Tekken: CDXA fade-out
	if( (cdr.Ctrl & 3) == 2 ) {
		cdr.AttenuatorLeft[1] = rt;
	}
	else if( (cdr.Ctrl & 3) == 3 && rt == 0x20 ) {
#ifdef CDR_LOG
		CDR_LOG( "CD-XA Volume: %X %X | %X %X\n",
			cdr.AttenuatorLeft[0], cdr.AttenuatorLeft[1],
			cdr.AttenuatorRight[0], cdr.AttenuatorRight[1] );
#endif
	}


	// GameShark CDX CD Player: Irq timing mania
	if( rt == 0 &&
			cdr.Irq != 0 && cdr.Irq != 0xff &&
			cdr.ResultReady == 0 ) {

		// GS CDX: ~0x28 cycle timing - way too precise
		if( cdr.Irq == CdlGetlocP ) {
			cdrInterrupt();

			psxRegs.interrupt &= ~(1 << PSXINT_CDR);
		}
	}


  if (rt == 0x07 && cdr.Ctrl & 0x1) {
		cdr.Stat = 0;

		if (cdr.Irq == 0xff) {
			cdr.Irq = 0;
			return;
		}

#if 1
		// Brave Fencer Musashi, Micro Machines V3, Parasite Eve 2, etc.
		if (cdr.Reading && !cdr.ResultReady) {
      CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
		}
#else
		// XA streaming - incorrect timing because of this reschedule
		// - Final Fantasy Tactics
		// - various other games

		/*
		if (cdr.Reading && !cdr.ResultReady) {
      CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
		}
		*/
#endif

		return;
	}

	if (rt == 0x80 && !(cdr.Ctrl & 0x1) && cdr.Readed == 0) {
		cdr.Readed = 1;
		cdr.transferIndex = 0;

		switch (cdr.Mode & (MODE_SIZE_2340|MODE_SIZE_2328)) {
			case MODE_SIZE_2328:
			case MODE_SIZE_2048:
				cdr.transferIndex += 12;
				break;

			case MODE_SIZE_2340:
				cdr.transferIndex += 0;
				break;

			default:
				break;
		}
	}
}

void psxDma3(u32 madr, u32 bcr, u32 chcr) {
	u32 cdsize;
	u8 *ptr/*, *cdwrap_ptr*/;

#ifdef CDR_LOG
	CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
#endif

	switch (chcr) {
		case 0x11000000:
		case 0x11400100:
			if (cdr.Readed == 0) {
#ifdef CDR_LOG
				CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
#endif
				break;
			}

			cdsize = (bcr & 0xffff) * 4;

			// Ape Escape: bcr = 0001 / 0000
			// - fix boot
			if( cdsize == 0 )
			{
				switch (cdr.Mode & (MODE_SIZE_2340|MODE_SIZE_2328)) {
					case MODE_SIZE_2340: cdsize = 2340; break;
					case MODE_SIZE_2328: cdsize = 2328; break;
					case MODE_SIZE_2048: cdsize = 2048; break;
				}
			}


			ptr = (u8 *)PSXM(madr);
			if (ptr == NULL) {
#ifdef CPU_LOG
				CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
#endif
				break;
			}

/*
#if 1
 
			// GS CDX: Enhancement CD crash
			// - Setloc 0:0:0
			// - CdlPlay
			// - Spams DMA3 and gets buffer overrun
			
			if( (cdr.pTransfer-cdr.Transfer) + cdsize > 2352 )
			{
				// avoid crash - probably should wrap here
				//memcpy(ptr, cdr.pTransfer, cdsize);
			}
			else
			{
				memcpy(ptr, cdr.pTransfer, cdsize);
			}

			psxCpu->Clear(madr, cdsize / 4);
			cdr.pTransfer += cdsize;
#else
			cdwrap_ptr = cdr.Transfer;
			switch (cdr.Mode & (MODE_SIZE_2340|MODE_SIZE_2328)) {
				case MODE_SIZE_2340: cdwrap_ptr += 2340; break;
				case MODE_SIZE_2328: cdwrap_ptr += 12 + 2328; break;
				case MODE_SIZE_2048: cdwrap_ptr += 12 + 2048; break;
			}


			// fast copy - no wrap
			if( cdr.pTransfer + cdsize <= cdwrap_ptr ) {
				memcpy(ptr, cdr.pTransfer, cdsize);

				psxCpu->Clear(madr, cdsize / 4);
				cdr.pTransfer += cdsize;
			} else {
				int lcv;

				// CDROM wrapping
				//
				// Ape Escape - used several times
				// Gameshark Lite - opening movie
				//
				// Gameshark CDX: enhancement CD patcher
				// - calls CdlPlay @ 0:2:0
				// - spams DMA3 and overruns buffer
				
				for( lcv = 0; lcv < cdsize; lcv++ )
				{
					// wrap cdrom ptr
					if( cdr.pTransfer == cdwrap_ptr ) {
						switch (cdr.Mode & (MODE_SIZE_2340|MODE_SIZE_2328)) {
							case MODE_SIZE_2328:
							case MODE_SIZE_2048:
								cdr.pTransfer = cdr.Transfer + 12;
								break;

							case MODE_SIZE_2340:
								cdr.pTransfer = cdr.Transfer + 0;
								break;
						}
					}


					*(ptr+lcv) = *cdr.pTransfer;
	
					cdr.pTransfer++;
				}

				psxCpu->Clear(madr, cdsize / 4);
			}
#endif
*/
			{
				int i;
				
				for(i = 0; i < cdsize; ++i) {
					ptr[i] = cdr.Transfer[cdr.transferIndex];
					cdr.transferIndex++;
					adjustTransferIndex();
				}
				
				psxCpu->Clear(madr, cdsize / 4);
			}

			// burst vs normal
			if( chcr == 0x11400100 ) {
#if 1
				CDRDMA_INT( (cdsize/4) / 4 );
#else
				// Experimental burst dma transfer (0.333x max)
				CDRDMA_INT( (cdsize/4) / 3 );
#endif
			}
			else if( chcr == 0x11000000 ) {
				CDRDMA_INT( (cdsize/4) * 1 );
			}
			return;

		default:
#ifdef CDR_LOG
			CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
#endif
			break;
	}

	HW_DMA3_CHCR &= SWAP32(~0x01000000);
	DMA_INTERRUPT(3);
}

void cdrDmaInterrupt()
{
	HW_DMA3_CHCR &= SWAP32(~0x01000000);
	DMA_INTERRUPT(3);
}

void cdrReset() {
	memset(&cdr, 0, sizeof(cdr));
	cdr.CurTrack = 1;
	cdr.File = 1;
	cdr.Channel = 1;

#if 1
	// BIOS player - default values
	cdr.AttenuatorLeft[0] = 0x80;
	cdr.AttenuatorLeft[1] = 0x00;
	cdr.AttenuatorRight[0] = 0x80;
	cdr.AttenuatorRight[1] = 0x00;
#endif
}

int cdrFreeze(gzFile f, int Mode) {
	unsigned int tmp;


	if( Mode == 0 ) {
		StopCdda();
	}
	
	
	gzfreeze(&cdr, sizeof(cdr));


	
	if (Mode == 1)
		tmp = cdr.transferIndex;

	gzfreeze(&tmp, sizeof(tmp));

	if (Mode == 0)
		cdr.transferIndex = tmp;

	return 0;
}

void LidInterrupt() {
	cdr.LidCheck = 0x20; // start checker

	CDRLID_INT( cdReadTime * 3 );
	
	// generate interrupt if none active - open or close
	if (cdr.Irq == 0 || cdr.Irq == 0xff) {
		cdr.Ctrl |= 0x80;
		cdr.Stat = NoIntr;
		AddIrqQueue(CdlNop, 0x800);
	}
}