KYRA: FM-Towns audio driver rewrite

- FM-Towns euphony driver completely rewritten based on KYRA FM-Towns and LOOM towns disasm.

- Split all the emu and driver code from sound_towns.cpp into different files to make things a bit less confusing.

- Move the driver code to common space since the exact same euphony driver is used by LOOM which means we could get rid of the outdated and incomplete ym2612 driver/emu implementation (which doesn't even do things like instrument loading, pan position, etc). I haven't tried to add this to the Scumm engine yet, since I am not  familiar with it and my priority was to get the driver finished first. But from the look of disasm it shouldn't be difficult to do.

- Introduce a generic FM-Towns audio interface based on FM-Towns system file disasm which was necessary for the euphony driver rewrite. Every FM-Towns game I have seen so far seems to access the audio hardware via these system functions. This interface implementation will also allow reasonably simple creation of new FM-Towns audio drivers (e.g. this could be used for Kings Quest 5 FM-Towns or others).

- Move the PC98 driver to common space, too, since I have a strong feeling that this driver is also used in the PC98 version of Future Wars

- This also improves KYRA FM-Towns music quality, sound effects accuracy and music fading.

svn-id: r51645

8 files changed, 5850 insertions, 0 deletions

diff --git a/sound/softsynth/fmtowns_pc98/towns_audio.cpp b/sound/softsynth/fmtowns_pc98/towns_audio.cpp
new file mode 100644
index 0000000000..0d5a16b35f
--- /dev/null
+++ b/sound/softsynth/fmtowns_pc98/towns_audio.cpp
@@ -0,0 +1,1479 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "sound/softsynth/fmtowns_pc98/towns_audio.h"
+#include "common/endian.h"
+
+
+class TownsAudio_PcmChannel {
+friend class TownsAudioInterface;
+public:
+	TownsAudio_PcmChannel();
+	~TownsAudio_PcmChannel();
+
+private:
+	void loadExtData(uint8 *buffer, uint32 size);
+	void setupLoop(uint32 start, uint32 len);
+	void clear();
+
+	void envAttack();
+	void envDecay();
+	void envSustain();
+	void envRelease();
+
+	uint8 *curInstrument;
+	uint8 note;
+	uint8 velo;
+	
+	int8 *data;
+	int8 *dataEnd;
+
+	int8 *loopEnd;
+	uint32 loopLen;
+
+	uint16 stepNote;
+	uint16 stepPitch;
+	uint16 step;
+
+	uint8 panLeft;
+	uint8 panRight;
+
+	uint32 pos;
+
+	uint8 envTotalLevel;
+	uint8 envAttackRate;
+	uint8 envDecayRate;
+	uint8 envSustainLevel;
+	uint8 envSustainRate;
+	uint8 envReleaseRate;
+
+	int16 envStep;
+	int16 envCurrentLevel;
+
+	EnvelopeState envState;
+		
+	int8 *extData;
+};
+	
+class TownsAudio_WaveTable {
+friend class TownsAudioInterface;
+public:
+	TownsAudio_WaveTable();
+	~TownsAudio_WaveTable();
+
+private:
+	void readHeader(const uint8 *buffer);
+	void readData(const uint8 *buffer);
+	void clear();
+
+	char name[9];
+	int32 id;
+	uint32 size;
+	uint32 loopStart;
+	uint32 loopLen;
+	uint16 rate;
+	uint16 rateOffs;
+	uint16 baseNote;
+	int8 *data;
+};
+
+TownsAudioInterface::TownsAudioInterface(Audio::Mixer *mixer, TownsAudioInterfacePluginDriver *driver) : TownsPC98_FmSynth(mixer, kTypeTowns),
+	_fmInstruments(0), _pcmInstruments(0), _pcmChan(0), _waveTables(0), _waveTablesTotalDataSize(0),
+	_baserate(55125.0f / (float)mixer->getOutputRate()), _tickLength(0), _timer(0), _drv(driver), _ready(false) {
+
+#define INTCB(x) &TownsAudioInterface::intf_##x
+	static const TownsAudioIntfCallback intfCb[] = {
+		// 0
+		INTCB(reset),
+		INTCB(keyOn),
+		INTCB(keyOff),
+		INTCB(setPanPos),
+		// 4
+		INTCB(setInstrument),
+		INTCB(loadInstrument),
+		INTCB(notImpl),
+		INTCB(setPitch),
+		// 8
+		INTCB(setLevel),
+		INTCB(chanOff),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		// 12
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		// 16
+		INTCB(notImpl),
+		INTCB(writeReg),
+		INTCB(notImpl),
+		INTCB(bufferedWriteReg),
+		// 20
+		INTCB(readRegBuffer),
+		INTCB(setTimerA),
+		INTCB(setTimerB),
+		INTCB(enableTimerA),
+		// 24
+		INTCB(enableTimerB),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		// 28
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		// 32
+		INTCB(notImpl),
+		INTCB(reserveEffectChannels),
+		INTCB(loadWaveTable),
+		INTCB(unloadWaveTable),
+		// 36
+		INTCB(notImpl),
+		INTCB(pcmPlayEffect),
+		INTCB(notImpl),
+		INTCB(pcmChanOff),
+		// 40
+		INTCB(pcmEffectPlaying),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		// 44
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		// 48
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(fmKeyOn),
+		INTCB(fmKeyOff),
+		// 52
+		INTCB(fmSetPanPos),
+		INTCB(fmSetInstrument),
+		INTCB(fmLoadInstrument),
+		INTCB(notImpl),
+		// 56
+		INTCB(fmSetPitch),
+		INTCB(fmSetLevel),
+		INTCB(fmReset),
+		INTCB(notImpl),
+		// 60
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		// 64
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(cdaSetVolume),
+		// 68
+		INTCB(cdaReset),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		// 72
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		// 76
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		INTCB(notImpl),
+		// 80
+		INTCB(pcmUpdateEnvelopeGenerator),
+		INTCB(notImpl)
+
+	};
+#undef INTCB
+
+	_intfOpcodes = intfCb;
+
+	memset(_fmSaveReg, 0, sizeof(_fmSaveReg));
+	_timerBase = (uint32)(_baserate * 1000000.0f);
+	_tickLength = 2 * _timerBase;
+}
+
+TownsAudioInterface::~TownsAudioInterface() {
+	delete[] _fmSaveReg[0];
+	delete[] _fmSaveReg[1];
+	delete[] _fmInstruments;
+	delete[] _pcmInstruments;
+	delete[] _waveTables;
+	delete[] _pcmChan;
+}
+
+bool TownsAudioInterface::init() {
+	if (_ready)
+		return true;
+
+	if (!_drv)
+		return false;	
+
+	if (!TownsPC98_FmSynth::init())
+		return false;	
+
+	_fmSaveReg[0] = new uint8[256];
+	_fmSaveReg[1] = new uint8[256];
+	_fmInstruments = new uint8[128 * 48];
+	_pcmInstruments = new uint8[32 * 128];
+	_waveTables = new TownsAudio_WaveTable[128];
+	_pcmChan = new TownsAudio_PcmChannel[8];
+
+	_timer = 0;
+
+	callback(0);
+
+	_ready = true;
+	return true;
+}
+
+int TownsAudioInterface::callback(int command, ...) {
+	va_list args;
+	va_start(args, command);
+
+	if (command > 81) {
+		va_end(args);
+		return 4;
+	}
+
+	Common::StackLock lock(_mutex);
+	int res = (this->*_intfOpcodes[command])(args);
+
+	va_end(args);
+	return res;
+}
+
+void TownsAudioInterface::nextTickEx(int32 *buffer, uint32 bufferSize) {
+	if (!_ready)
+		return;
+
+	for (uint32 i = 0; i < bufferSize; i++) {
+		_timer += _tickLength;
+		while (_timer > 0x5B8D80) {
+			_timer -= 0x5B8D80;
+
+			for (int ii = 0; ii < 8; ii++) {
+				if ((_pcmChanKeyPlaying & _chanFlags[ii]) || (_pcmChanEffectPlaying & _chanFlags[ii])) {
+					TownsAudio_PcmChannel *s = &_pcmChan[ii];
+					s->pos += s->step;
+
+					if  (&s->data[s->pos >> 11] >= s->loopEnd) {
+						if (s->loopLen) {
+							s->pos -= s->loopLen;
+						} else {
+							s->pos = 0;
+							_pcmChanEffectPlaying &= ~_chanFlags[ii];
+							_pcmChanKeyPlaying &= ~_chanFlags[ii];
+						}
+					}
+				}
+			}
+		}
+
+		int32 finOutL = 0;
+		int32 finOutR = 0;
+
+		for (int ii = 0; ii < 8; ii++) {
+			if (_pcmChanOut & _chanFlags[ii]) {
+				int32 o = _pcmChan[ii].data[_pcmChan[ii].pos >> 11] * _pcmChan[ii].velo;
+				if (_pcmChan[ii].panLeft)
+					finOutL += ((o * _pcmChan[ii].panLeft) >> 3);
+				if (_pcmChan[ii].panRight)
+					finOutR += ((o *_pcmChan[ii].panRight) >> 3);
+				if (!((_pcmChanKeyPlaying & _chanFlags[ii]) || (_pcmChanEffectPlaying & _chanFlags[ii])))
+					_pcmChanOut &= ~_chanFlags[ii];
+			}
+		}
+
+		buffer[i << 1] += finOutL;
+		buffer[(i << 1) + 1] += finOutR;
+	}
+}
+
+void TownsAudioInterface::timerCallbackA() {
+	Common::StackLock lock(_mutex);
+	if (_drv && _ready)
+		_drv->timerCallback(0);
+}
+
+void TownsAudioInterface::timerCallbackB() {
+	Common::StackLock lock(_mutex);
+	if (_ready) {
+		if (_drv)
+		_drv->timerCallback(1);
+		for (int i = 0; i < 8; i++)
+			pcmUpdateEnvelopeGenerator(i);
+	}
+}
+
+int TownsAudioInterface::intf_reset(va_list &args) {
+	Common::StackLock lock(_mutex);
+	fmReset();
+	pcmReset();
+	cdaReset();
+	return 0;
+}
+
+int TownsAudioInterface::intf_keyOn(va_list &args) {
+	int chan = va_arg(args, int);
+	int note = va_arg(args, int);
+	int velo = va_arg(args, int);
+	return (chan & 0x40) ? pcmKeyOn(chan, note, velo) : fmKeyOn(chan, note, velo);
+}
+
+int TownsAudioInterface::intf_keyOff(va_list &args) {
+	int chan = va_arg(args, int);
+	return (chan & 0x40) ? pcmKeyOff(chan) : fmKeyOff(chan);
+}
+
+int TownsAudioInterface::intf_setPanPos(va_list &args) {
+	int chan = va_arg(args, int);
+	int mode = va_arg(args, int);
+	return (chan & 0x40) ? pcmSetPanPos(chan, mode) : fmSetPanPos(chan, mode);
+}
+
+int TownsAudioInterface::intf_setInstrument(va_list &args) {
+	int chan = va_arg(args, int);
+	int instrId = va_arg(args, int);
+	return (chan & 0x40) ? pcmSetInstrument(chan, instrId) : fmSetInstrument(chan, instrId);
+}
+
+int TownsAudioInterface::intf_loadInstrument(va_list &args) {
+	int chanType = va_arg(args, int);
+	int instrId = va_arg(args, int);
+	uint8 *instrData = va_arg(args, uint8*);
+	return (chanType & 0x40) ? pcmLoadInstrument(instrId, instrData) : fmLoadInstrument(instrId, instrData);
+}
+
+int TownsAudioInterface::intf_setPitch(va_list &args) {
+	int chan = va_arg(args, int);
+	int16 pitch = (int16)(va_arg(args, int) & 0xffff);
+	return (chan & 0x40) ? pcmSetPitch(chan, pitch) : fmSetPitch(chan, pitch);
+}
+
+int TownsAudioInterface::intf_setLevel(va_list &args) {
+	int chan = va_arg(args, int);
+	int lvl = va_arg(args, int);
+	return (chan & 0x40) ? pcmSetLevel(chan, lvl) : fmSetLevel(chan, lvl);
+}
+
+int TownsAudioInterface::intf_chanOff(va_list &args) {
+	int chan = va_arg(args, int);
+	return (chan & 0x40) ? pcmChanOff(chan) : fmChanOff(chan);
+}
+
+int TownsAudioInterface::intf_writeReg(va_list &args) {
+	int part = va_arg(args, int) ? 1 : 0;
+	int reg = va_arg(args, int);
+	int val = va_arg(args, int);
+	if ((!part && reg < 0x20) || (part && reg < 0x30) || (reg > 0xb6))
+		return 3;
+
+	bufferedWriteReg(part, reg, val);
+	return 0;
+}
+
+int TownsAudioInterface::intf_bufferedWriteReg(va_list &args) {
+	int part = va_arg(args, int) ? 1 : 0;
+	int reg = va_arg(args, int);
+	int val = va_arg(args, int);
+
+	if ((!part && reg < 0x20) || (part && reg < 0x30) || (reg > 0xef))
+		return 3;
+
+	_fmSaveReg[part][reg] = val;
+	return 0;
+}
+
+int TownsAudioInterface::intf_readRegBuffer(va_list &args) {
+	int part = va_arg(args, int) ? 1 : 0;
+	int reg = va_arg(args, int);
+	uint8 *dst = va_arg(args, uint8*);
+	*dst = 0;
+
+	if ((!part && reg < 0x20) || (part && reg < 0x30) || (reg > 0xef))
+		return 3;
+
+	*dst = _fmSaveReg[part][reg];
+	return 0;
+}
+	
+int TownsAudioInterface::intf_setTimerA(va_list &args) {
+	int enable = va_arg(args, int);
+	int tempo = va_arg(args, int);
+
+	if (enable) {
+		bufferedWriteReg(0, 0x25, tempo & 3);
+		bufferedWriteReg(0, 0x24, (tempo >> 2) & 0xff);
+		bufferedWriteReg(0, 0x27, _fmSaveReg[0][0x27] | 0x05);
+	} else {
+		bufferedWriteReg(0, 0x27, (_fmSaveReg[0][0x27] & 0xfa) | 0x10);
+	}
+
+	return 0;
+}
+
+int TownsAudioInterface::intf_setTimerB(va_list &args) {
+	int enable = va_arg(args, int);
+	int tempo = va_arg(args, int);
+
+	if (enable) {
+		bufferedWriteReg(0, 0x26, tempo & 0xff);
+		bufferedWriteReg(0, 0x27, _fmSaveReg[0][0x27] | 0x0A);
+	} else {
+		bufferedWriteReg(0, 0x27, (_fmSaveReg[0][0x27] & 0xf5) | 0x20);
+	}
+	
+	return 0;
+}
+
+int TownsAudioInterface::intf_enableTimerA(va_list &args) {
+	bufferedWriteReg(0, 0x27, _fmSaveReg[0][0x27] | 0x15);
+	return 0;
+}
+
+int TownsAudioInterface::intf_enableTimerB(va_list &args) {
+	bufferedWriteReg(0, 0x27, _fmSaveReg[0][0x27] | 0x2a);
+	return 0;
+}
+
+int TownsAudioInterface::intf_reserveEffectChannels(va_list &args) {
+	int numChan = va_arg(args, int);
+	if (numChan > 8)
+		return 3;	
+	if ((numChan << 13) + _waveTablesTotalDataSize > 65536)
+		return 5;
+	
+	if (numChan == _numReservedChannels)
+		return 0;
+
+	if (numChan < _numReservedChannels) {
+		int c = 8 - _numReservedChannels;
+		for (int i = numChan; i; i--) {
+			uint8 f = ~_chanFlags[c--];
+			_pcmChanEffectPlaying &= f;			
+		}
+	} else {
+		int c = 7 - _numReservedChannels;
+		for (int i = numChan - _numReservedChannels; i; i--) {
+			uint8 f = ~_chanFlags[c--];
+			_pcmChanKeyPressed &= f;
+			_pcmChanKeyPlaying &= f;			
+		}
+	}
+
+	static const uint8 reserveChanFlags[] = { 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xFE, 0xFF };
+	_numReservedChannels = numChan;
+	_pcmChanReserved = reserveChanFlags[_numReservedChannels];
+
+	return 0;
+}
+
+int TownsAudioInterface::intf_loadWaveTable(va_list &args) {
+	uint8 *data = va_arg(args, uint8*);
+	if (_numWaveTables > 127)
+		return 3;
+	
+	TownsAudio_WaveTable w;
+	w.readHeader(data);
+	if (!w.size)
+		return 6;
+
+	if (_waveTablesTotalDataSize + w.size > 65504)
+		return 5;
+
+	for (int i = 0; i < _numWaveTables; i++) {
+		if (_waveTables[i].id == w.id)
+			return 10;
+	}
+
+	TownsAudio_WaveTable *s = &_waveTables[_numWaveTables++];
+	s->readHeader(data);
+	s->readData(data + 32);
+
+	_waveTablesTotalDataSize += w.size;
+
+	return 0;
+}
+
+int TownsAudioInterface::intf_unloadWaveTable(va_list &args) {
+	int id = va_arg(args, int);
+	
+	if (id == -1) {
+		for (int i = 0; i < 128; i++)
+			_waveTables[i].clear();
+		_numWaveTables = 0;
+		_waveTablesTotalDataSize = 0;
+	} else {
+		if (_waveTables) {
+			for (int i = 0; i < _numWaveTables; i++) {
+				if (_waveTables[i].id == id) {
+					_numWaveTables--;
+					_waveTablesTotalDataSize -= _waveTables[i].size;
+					_waveTables[i].clear();
+					for (; i < _numWaveTables; i++)
+						memcpy(&_waveTables[i], &_waveTables[i + 1], sizeof(TownsAudio_WaveTable));
+					return 0;
+				}
+				return 9;
+			}
+		}
+	}
+
+	return 0;
+}
+
+int TownsAudioInterface::intf_pcmPlayEffect(va_list &args) {
+	int chan = va_arg(args, int);
+	int note = va_arg(args, int);
+	int velo = va_arg(args, int);
+	uint8 *data = va_arg(args, uint8*);
+
+	if (chan < 0x40 || chan > 0x47)
+		return 1;
+	
+	if (note & 0x80 || velo & 0x80)
+		return 3;
+
+	chan -= 0x40;
+
+	if (!(_pcmChanReserved & _chanFlags[chan]))
+		return 7;
+
+	if ((_pcmChanEffectPlaying & _chanFlags[chan]))
+		return 2;
+
+	TownsAudio_WaveTable w;
+	w.readHeader(data);
+
+	if (!w.size < (w.loopStart + w.loopLen))
+		return 13;
+
+	if (!w.size)
+		return 6;
+
+	TownsAudio_PcmChannel *p = &_pcmChan[chan];
+	
+	_pcmChanNote[chan] = note;
+	_pcmChanVelo[chan] = velo;
+
+	p->note = note;
+	p->velo = velo << 1;
+
+	p->loadExtData(data + 32, w.size);
+	p->setupLoop(w.loopStart, w.loopLen);
+
+	pcmCalcPhaseStep(p, &w);
+	if (p->step > 2048)
+		p->step = 2048;
+
+	_pcmChanEffectPlaying |= _chanFlags[chan];
+	_pcmChanOut |= _chanFlags[chan];
+
+	return 0;
+}
+
+int TownsAudioInterface::intf_pcmChanOff(va_list &args) {
+	int chan = va_arg(args, int);
+	pcmChanOff(chan);
+	return 0;
+}
+
+int TownsAudioInterface::intf_pcmEffectPlaying(va_list &args) {
+	int chan = va_arg(args, int);
+	if (chan < 0x40 || chan > 0x47)
+		return 1;
+	chan -= 0x40;
+	return (_pcmChanEffectPlaying & _chanFlags[chan]) ? true : false;
+}
+
+int TownsAudioInterface::intf_fmKeyOn(va_list &args) {
+	int chan = va_arg(args, int);
+	int note = va_arg(args, int);
+	int velo = va_arg(args, int);
+	return fmKeyOn(chan, note, velo);
+}
+
+int TownsAudioInterface::intf_fmKeyOff(va_list &args) {
+	int chan = va_arg(args, int);
+	return fmKeyOff(chan);
+}
+
+int TownsAudioInterface::intf_fmSetPanPos(va_list &args) {
+	int chan = va_arg(args, int);
+	int mode = va_arg(args, int);
+	return fmSetPanPos(chan, mode);
+}
+
+int TownsAudioInterface::intf_fmSetInstrument(va_list &args) {
+	int chan = va_arg(args, int);
+	int instrId = va_arg(args, int);
+	return fmSetInstrument(chan, instrId);
+}
+
+int TownsAudioInterface::intf_fmLoadInstrument(va_list &args) {
+	int instrId = va_arg(args, int);
+	uint8 *instrData = va_arg(args, uint8*);
+	return fmLoadInstrument(instrId, instrData);
+}
+
+int TownsAudioInterface::intf_fmSetPitch(va_list &args) {
+	int chan = va_arg(args, int);
+	uint16 freq = va_arg(args, int) & 0xffff;
+	return fmSetPitch(chan, freq);
+}
+
+int TownsAudioInterface::intf_fmSetLevel(va_list &args) {
+	int chan = va_arg(args, int);
+	int lvl = va_arg(args, int);
+	return fmSetLevel(chan, lvl);
+}
+
+int TownsAudioInterface::intf_fmReset(va_list &args) {
+	fmReset();
+	return 0;
+}
+
+int TownsAudioInterface::intf_cdaReset(va_list &args) {
+	cdaReset();
+	return 0;
+}
+
+int TownsAudioInterface::intf_pcmUpdateEnvelopeGenerator(va_list &args) {
+	for (int i = 0; i < 8; i++)
+		pcmUpdateEnvelopeGenerator(i);
+	return 0;
+}
+
+int TownsAudioInterface::intf_cdaSetVolume(va_list &args) {
+	/*int unk = va_arg(args, int);
+	int volume1 = va_arg(args, int);
+	int volume2 = va_arg(args, int);*/
+	return 0;
+}
+
+int TownsAudioInterface::intf_notImpl(va_list &args) {
+	return 4;
+}
+
+void TownsAudioInterface::fmReset() {
+	TownsPC98_FmSynth::reset();
+
+	_fmChanPlaying = 0;
+	memset(_fmChanNote, 0, sizeof(_fmChanNote));
+	memset(_fmChanPitch, 0, sizeof(_fmChanPitch));
+
+	memset(_fmSaveReg[0], 0, 240);
+	memset(&_fmSaveReg[0][240], 0x7f, 16);
+	memset(_fmSaveReg[1], 0, 256);
+	memset(&_fmSaveReg[1][240], 0x7f, 16);
+	_fmSaveReg[0][243] = _fmSaveReg[0][247] = _fmSaveReg[0][251] = _fmSaveReg[0][255] = 
+	_fmSaveReg[1][243] = _fmSaveReg[1][247] = _fmSaveReg[1][251] = _fmSaveReg[1][255] = 0xff;
+	
+	for (int i = 0; i < 128; i++)
+		fmLoadInstrument(i, _fmDefaultInstrument);
+
+	bufferedWriteReg(0, 0x21, 0);
+	bufferedWriteReg(0, 0x2C, 0x80);
+	bufferedWriteReg(0, 0x2B, 0);
+	bufferedWriteReg(0, 0x27, 0x30);
+
+	for (int i = 0; i < 6; i++) {
+		fmKeyOff(i);
+		fmSetInstrument(i, 0);
+		fmSetLevel(i, 127);
+	}
+}
+
+int TownsAudioInterface::fmKeyOn(int chan, int note, int velo) {
+	if (chan > 5)
+		return 1;
+	if (note < 12 || note > 107 || (velo & 0x80))
+		return 3;
+	if (_fmChanPlaying & _chanFlags[chan])
+		return 2;
+
+	_fmChanPlaying |= _chanFlags[chan];
+	note -= 12;
+
+	_fmChanNote[chan] = note;
+	int16 pitch = _fmChanPitch[chan];
+
+	uint8 part = chan > 2 ? 1 : 0;
+	if (chan > 2)
+		chan -= 3;
+	
+	int frq = 0;
+	uint8 bl = 0;
+
+	if (note) {
+		frq = _frequency[(note - 1) % 12];
+		bl = (note - 1) / 12;
+	} else {
+		frq = 616;
+	}
+
+	frq += pitch;
+
+	if (frq < 616) {
+		if (!bl) {
+			frq = 616;
+		} else {
+			frq += 616;
+			--bl;
+		}
+	} else if (frq > 1232) {
+		if (bl == 7) {
+			frq = 15500;
+		} else {
+			frq -= 616;
+			++bl;
+		}
+	}
+
+	frq |= (bl << 11);
+
+	bufferedWriteReg(part, chan + 0xa4, (frq >> 8) & 0xff);
+	bufferedWriteReg(part, chan + 0xa0, frq & 0xff);
+
+	velo = (velo >> 2) + 96;
+	uint16 c = _carrier[_fmSaveReg[part][0xb0 + chan] & 7];
+	_fmSaveReg[part][0xe0 + chan] = velo;
+
+	for (uint8 reg = 0x40 + chan; reg < 0x50; reg += 4) {
+		c += c;
+		if (c & 0x100) {
+			c &= 0xff;
+			bufferedWriteReg(part, reg, (((((((_fmSaveReg[part][0x80 + reg] ^ 0x7f) * velo) >> 7) + 1) * _fmSaveReg[part][0xd0 + chan]) >> 7) + 1) ^ 0x7f);
+		}
+	}
+
+	uint8 v = chan;
+	if (part)
+		v |= 4;
+
+	for (uint8 reg = 0x80 + chan; reg < 0x90; reg += 4) 
+		writeReg(part, reg,	_fmSaveReg[part][reg] | 0x0f);
+
+	writeReg(0, 0x28, v);
+
+	for (uint8 reg = 0x80 + chan; reg < 0x90; reg += 4) 
+		writeReg(part, reg,	_fmSaveReg[part][reg]);
+
+	bufferedWriteReg(0, 0x28, v | 0xf0);
+
+	return 0;
+}
+
+int TownsAudioInterface::fmKeyOff(int chan) {
+	if (chan > 5)
+		return 1;
+	_fmChanPlaying &= ~_chanFlags[chan];
+	if (chan > 2)
+		chan++;
+	bufferedWriteReg(0, 0x28, chan);
+	return 0;
+}
+
+int TownsAudioInterface::fmChanOff(int chan) {
+	if (chan > 5)
+		return 1;
+	_fmChanPlaying &= ~_chanFlags[chan];
+
+	uint8 part = chan > 2 ? 1 : 0;
+	if (chan > 2)
+		chan -= 3;
+
+	for (uint8 reg = 0x80 + chan; reg < 0x90; reg += 4)
+		writeReg(part, reg, _fmSaveReg[part][reg] | 0x0f);
+
+	if (part)
+		chan += 4;
+	writeReg(0, 0x28, chan);
+	return 0;
+}
+
+int TownsAudioInterface::fmSetPanPos(int chan, int value) {
+	if (chan > 5)
+		return 1;
+
+	uint8 part = chan > 2 ? 1 : 0;
+	if (chan > 2)
+		chan -= 3;
+
+	if (value > 0x40)
+		value = 0x40;
+	else if (value < 0x40)
+		value = 0x80;
+	else
+		value = 0xC0;
+
+	bufferedWriteReg(part, 0xb4 + chan, (_fmSaveReg[part][0xb4 + chan] & 0x3f) | value);
+	return 0;
+}
+
+int TownsAudioInterface::fmSetInstrument(int chan, int instrId) {
+	if (chan > 5)
+		return 1;
+	if (instrId > 127)
+		return 3;
+
+	uint8 part = chan > 2 ? 1 : 0;
+	if (chan > 2)
+		chan -= 3;
+
+	uint8 *src = &_fmInstruments[instrId * 48 + 8];
+
+	uint16 c = _carrier[src[24] & 7];
+	uint8 reg = 0x30 + chan;
+
+	for (; reg < 0x40; reg += 4)
+		bufferedWriteReg(part, reg, *src++);
+
+	for (; reg < 0x50; reg += 4) {
+		uint8 v = *src++;
+		_fmSaveReg[part][0x80 + reg] = _fmSaveReg[part][reg] = v;
+		c += c;
+		if (c & 0x100) {
+			c &= 0xff;
+			v = 127;
+		}
+		writeReg(part, reg, v);
+	}
+
+	for (; reg < 0x90; reg += 4)
+		bufferedWriteReg(part, reg, *src++);
+
+	reg += 0x20;
+	bufferedWriteReg(part, reg, *src++);
+
+	uint8 v = *src++;
+	reg += 4;	
+	if (v < 64)
+		v |= (_fmSaveReg[part][reg] & 0xc0);
+	bufferedWriteReg(part, reg, v);
+
+	return 0;
+}
+
+int TownsAudioInterface::fmLoadInstrument(int instrId, const uint8 *data) {
+	if (instrId > 127)
+		return 3;
+	assert(data);
+	memcpy(&_fmInstruments[instrId * 48], data, 48);	
+	return 0;
+}
+
+int TownsAudioInterface::fmSetPitch(int chan, int pitch) {
+	if (chan > 5)
+		return 1;
+
+	uint8 bl = _fmChanNote[chan];
+	int frq = 0;
+
+	if (pitch < 0) {
+		if (bl) {
+			if (pitch < -8008)
+				pitch = -8008;
+			pitch *= -1;	
+			pitch /= 13;
+			frq = _frequency[(bl - 1) % 12] - pitch;
+			bl = (bl - 1) / 12;
+			_fmChanPitch[chan] = -pitch;
+
+			if (frq < 616) {
+				if (bl) {
+					frq += 616;
+					bl--;
+				} else {
+					frq = 616;
+					bl = 0;
+				}
+			}			
+		} else {
+			frq = 616;
+			bl = 0;
+		}
+
+	} else if (pitch > 0) {
+		if (bl < 96) {
+			if (pitch > 8008)
+				pitch = 8008;
+			pitch /= 13;
+				
+			if (bl) {
+				frq = _frequency[(bl - 1) % 12] + pitch;
+				bl = (bl - 1) / 12;
+			} else {
+				frq = 616;
+				bl = 0;
+			}
+			
+			_fmChanPitch[chan] = pitch;
+
+			if (frq > 1232) {
+				if (bl < 7) {
+					frq -= 616;
+					bl++;
+				} else {
+					frq = 1164;
+					bl = 7;
+				}
+			} else {
+				if (bl >= 7 && frq > 1164)
+					frq = 1164;
+			}				
+			
+		} else {
+			frq = 1164;
+			bl = 7;
+		}
+	} else {
+		_fmChanPitch[chan] = 0;
+		if (bl) {
+			frq = _frequency[(bl - 1) % 12];
+			bl = (bl - 1) / 12;
+		} else {
+			frq = 616;
+			bl = 0;
+		}
+	}
+
+	uint8 part = chan > 2 ? 1 : 0;
+	if (chan > 2)
+		chan -= 3;
+
+	frq |= (bl << 11);
+
+	bufferedWriteReg(part, chan + 0xa4, (frq >> 8));
+	bufferedWriteReg(part, chan + 0xa0, (frq & 0xff));
+
+	return 0;
+}
+
+int TownsAudioInterface::fmSetLevel(int chan, int lvl) {
+	if (chan > 5)
+		return 1;
+	if (lvl > 127)
+		return 3;
+
+	uint8 part = chan > 2 ? 1 : 0;
+	if (chan > 2)
+		chan -= 3;
+	
+	uint16 c = _carrier[_fmSaveReg[part][0xb0 + chan] & 7];
+	_fmSaveReg[part][0xd0 + chan] = lvl;
+
+	for (uint8 reg = 0x40 + chan; reg < 0x50; reg += 4) {
+		c += c;
+		if (c & 0x100) {
+			c &= 0xff;
+			bufferedWriteReg(part, reg, (((((((_fmSaveReg[part][0x80 + reg] ^ 0x7f) * lvl) >> 7) + 1) * _fmSaveReg[part][0xe0 + chan]) >> 7) + 1) ^ 0x7f);
+		}
+	}
+	return 0;
+}
+
+void TownsAudioInterface::bufferedWriteReg(uint8 part, uint8 regAddress, uint8 value) {
+	_fmSaveReg[part][regAddress] = value;
+	writeReg(part, regAddress, value);
+}
+
+void TownsAudioInterface::pcmReset() {
+	_pcmChanOut = 0;
+	_pcmChanReserved = _pcmChanKeyPressed = _pcmChanEffectPlaying = _pcmChanKeyPlaying = 0;
+	_numReservedChannels = 0;
+
+	memset(_pcmChanNote, 0, 8);
+	memset(_pcmChanVelo, 0, 8);
+	memset(_pcmChanLevel, 0, 8);
+
+	for (int i = 0; i < 8; i++)
+		_pcmChan[i].clear();
+	
+	memset(_pcmInstruments, 0, 128 * 32);
+	static uint8 name[] = { 0x4E, 0x6F, 0x20, 0x44, 0x61, 0x74, 0x61, 0x21 };
+	for (int i = 0; i < 32; i++)
+		memcpy(_pcmInstruments + i * 128, name, 8);
+	
+	for (int i = 0; i < 128; i++)
+		_waveTables[i].clear();
+	_numWaveTables = 0;
+	_waveTablesTotalDataSize = 0;
+
+	for (int i = 0x40; i < 0x48; i++) {
+		pcmSetInstrument(i, 0);
+		pcmSetLevel(i, 127);
+	}
+}
+
+int TownsAudioInterface::pcmKeyOn(int chan, int note, int velo) {
+	if (chan < 0x40 || chan > 0x47)
+		return 1;
+	
+	if (note & 0x80 || velo & 0x80)
+		return 3;
+
+	chan -= 0x40;
+
+	if ((_pcmChanReserved & _chanFlags[chan]) || (_pcmChanKeyPressed & _chanFlags[chan]))
+		return 2;
+
+	_pcmChanNote[chan] = note;
+	_pcmChanVelo[chan] = velo;
+	
+	TownsAudio_PcmChannel *p = &_pcmChan[chan];
+	p->note = note;
+
+	uint8 *instr = _pcmChan[chan].curInstrument;
+	int i = 0;
+	for (; i < 8; i++) {
+		if (note <= instr[16 + 2 * i])
+			break;
+	}
+
+	if (i == 8)
+		return 8;
+
+	int il = i << 3;
+	p->note += instr[il + 70];
+
+	p->envTotalLevel = instr[il + 64];
+	p->envAttackRate = instr[il + 65];
+	p->envDecayRate = instr[il + 66];
+	p->envSustainLevel = instr[il + 67];
+	p->envSustainRate = instr[il + 68];
+	p->envReleaseRate = instr[il + 69];
+	p->envStep = 0;
+
+	int32 id = (int32)READ_LE_UINT32(&instr[i * 4 + 32]);
+
+	for (i = 0; i < _numWaveTables; i++) {
+		if (id == _waveTables[i].id)
+			break;
+	}
+
+	if (i == _numWaveTables)
+		return 9;
+
+	TownsAudio_WaveTable *w = &_waveTables[i];
+
+	p->data = w->data;
+	p->dataEnd = w->data + w->size;
+	p->setupLoop(w->loopStart, w->loopLen);
+
+	pcmCalcPhaseStep(p, w);
+
+	uint32 lvl = _pcmChanLevel[chan] * _pcmChanVelo[chan];
+	p->envTotalLevel = ((p->envTotalLevel * lvl) >> 14) & 0xff;
+	p->envSustainLevel = ((p->envSustainLevel * lvl) >> 14) & 0xff;
+
+	p->envAttack();
+	p->velo = (p->envCurrentLevel >> 8) << 1;
+
+	_pcmChanKeyPressed |= _chanFlags[chan];
+	_pcmChanKeyPlaying |= _chanFlags[chan];
+	_pcmChanOut |= _chanFlags[chan];
+
+	return 0;
+}
+
+int TownsAudioInterface::pcmKeyOff(int chan) {
+	if (chan < 0x40 || chan > 0x47)
+		return 1;
+
+	chan -= 0x40;
+	_pcmChanKeyPressed &= ~_chanFlags[chan];	
+	_pcmChan[chan].envRelease();
+	return 0;
+}
+
+int TownsAudioInterface::pcmChanOff(int chan) {
+	if (chan < 0x40 || chan > 0x47)
+		return 1;
+
+	chan -= 0x40;
+
+	_pcmChanKeyPressed &= ~_chanFlags[chan];
+	_pcmChanEffectPlaying &= ~_chanFlags[chan];
+	_pcmChanKeyPlaying &= ~_chanFlags[chan];
+	_pcmChanOut &= ~_chanFlags[chan];
+
+	return 0;
+}
+
+int TownsAudioInterface::pcmSetPanPos(int chan, int mode) {
+	if (chan > 0x47)
+		return 1;
+	if (mode & 0x80)
+		return 3;
+
+	chan -= 0x40;
+	uint8 blc = 0x77;
+
+	if (mode > 64) {
+		mode -= 64;
+		blc = ((blc ^ (mode >> 3)) + (mode << 4)) & 0xff;
+	} else if (mode < 64) {
+		mode = (mode >> 3) ^ 7;
+		blc = ((119 + mode) ^ (mode << 4)) & 0xff;
+	}
+
+	_pcmChan[chan].panLeft = blc & 0x0f;
+	_pcmChan[chan].panRight = blc >> 4;
+
+	return 0;
+}
+
+int TownsAudioInterface::pcmSetInstrument(int chan, int instrId) {
+	if (chan > 0x47)
+		return 1;
+	if (instrId > 31)
+		return 3;
+	chan -= 0x40;
+	_pcmChan[chan].curInstrument = &_pcmInstruments[instrId * 128];
+	return 0;
+}
+
+int TownsAudioInterface::pcmLoadInstrument(int instrId, const uint8 *data) {
+	if (instrId > 31)
+		return 3;
+	assert(data);
+	memcpy(&_pcmInstruments[instrId * 128], data, 128);	
+	return 0;
+}
+
+int TownsAudioInterface::pcmSetPitch(int chan, int pitch) {
+	if (chan > 0x47)
+		return 1;
+
+	if (pitch < -8192 || pitch > 8191)
+		return 3;
+
+	chan -= 0x40;
+	TownsAudio_PcmChannel *p = &_pcmChan[chan];
+
+	uint32 pts = 0x4000;
+
+	if (pitch < 0)
+		pts = (0x20000000 / (-pitch + 0x2001)) >> 2;
+	else if (pitch > 0)
+		pts = (((pitch + 0x2001) << 16) / 0x2000) >> 2;	
+
+	p->stepPitch = pts & 0xffff;
+	p->step = (p->stepNote * p->stepPitch) >> 14;
+
+//	if (_pcmChanUnkFlag & _chanFlags[chan])
+//		 unk[chan] = (((p->step * 1000) << 11) / 98) / 20833;
+	
+	/*else*/ if ((_pcmChanEffectPlaying & _chanFlags[chan]) && (p->step > 2048))
+		p->step = 2048;
+
+	return 0;
+}
+
+int TownsAudioInterface::pcmSetLevel(int chan, int lvl) {
+	if (chan > 0x47)
+		return 1;
+	
+	if (lvl & 0x80)
+		return 3;
+
+	chan -= 0x40;
+	TownsAudio_PcmChannel *p = &_pcmChan[chan];
+	
+	if (_pcmChanReserved & _chanFlags[chan]) {
+		_pcmChanVelo[chan] = lvl;
+		p->velo = lvl << 1;
+	} else {
+		int32 t = p->envStep * lvl;
+		if (_pcmChanLevel[chan])
+			t /= _pcmChanLevel[chan];
+		p->envStep = t;
+		t = p->envCurrentLevel * lvl;
+		if (_pcmChanLevel[chan])
+			t /= _pcmChanLevel[chan];
+		p->envCurrentLevel = t;
+		_pcmChanLevel[chan] = lvl;
+		p->velo = p->envCurrentLevel >> 8;
+	}
+
+	return 0;
+}
+
+void TownsAudioInterface::pcmUpdateEnvelopeGenerator(int chan) {
+	TownsAudio_PcmChannel *p = &_pcmChan[chan];
+	if (!p->envCurrentLevel) {
+		_pcmChanKeyPlaying &= ~_chanFlags[chan];
+		p->envState = kEnvReady;
+	}
+
+	if (!(_pcmChanKeyPlaying & _chanFlags[chan]))
+		return;
+
+	switch (p->envState) {
+		case kEnvAttacking:
+			if (((p->envCurrentLevel + p->envStep) >> 8) > p->envTotalLevel) {
+				p->envDecay();
+				return;
+			} else {
+				p->envCurrentLevel += p->envStep;
+			}
+			break;
+
+		case kEnvDecaying:
+			if (((p->envCurrentLevel - p->envStep) >> 8) < p->envSustainLevel) {
+				p->envSustain();
+				return;
+			} else {
+				p->envCurrentLevel -= p->envStep;
+			}
+			break;
+
+		case kEnvSustaining:
+		case kEnvReleasing:
+			p->envCurrentLevel -= p->envStep;
+			if (p->envCurrentLevel <= 0)
+				p->envCurrentLevel = 0;
+			break;
+		
+		default:
+			break;
+	}
+	p->velo = (p->envCurrentLevel >> 8) << 1;
+}
+
+void TownsAudioInterface::pcmCalcPhaseStep(TownsAudio_PcmChannel *p, TownsAudio_WaveTable *w) {
+	int8 diff = p->note - w->baseNote;
+	uint16 r = w->rate + w->rateOffs;
+	uint16 bl = 0;
+	uint32 s = 0;
+
+	if (diff < 0) {
+		diff -= 1;
+		bl = diff % 12;
+		diff /= 12;
+		s = (r >> diff);
+		if (bl)
+			s = (s * _pcmPhase2[bl]) >> 16;
+
+	} else if (diff > 0) {
+		bl = diff % 12;
+		diff /= 12;
+		s = (r << diff);
+		if (bl)
+			s += ((s * _pcmPhase1[bl]) >> 16);
+
+	} else {
+		s = r;
+	}
+
+	p->stepNote = s & 0xffff;
+	p->step = (s * p->stepPitch) >> 14;	
+}
+
+void TownsAudioInterface::cdaReset() {
+	
+}
+
+const uint8 TownsAudioInterface::_chanFlags[] = {
+	0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80
+};
+
+const uint16 TownsAudioInterface::_frequency[] = {
+	0x028C, 0x02B4, 0x02DC, 0x030A, 0x0338, 0x0368, 0x039C, 0x03D4, 0x040E, 0x044A, 0x048C, 0x04D0
+};
+
+const uint8 TownsAudioInterface::_carrier[] = {
+	0x10, 0x10, 0x10, 0x10, 0x30, 0x70, 0x70, 0xF0
+};
+
+const uint8 TownsAudioInterface::_fmDefaultInstrument[] = {
+	0x45, 0x4C, 0x45, 0x50, 0x49, 0x41, 0x4E, 0x4F, 0x01, 0x0A, 0x02, 0x01,
+	0x1E, 0x32, 0x05, 0x00, 0x9C, 0xDC, 0x9C, 0xDC, 0x07, 0x03, 0x14, 0x08,
+	0x00, 0x03, 0x05, 0x05, 0x55, 0x45, 0x27, 0xA7, 0x04, 0xC0, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+const uint16 TownsAudioInterface::_pcmPhase1[] =  {
+	0x879B, 0x0F37, 0x1F58, 0x306E, 0x4288, 0x55B6, 0x6A08, 0x7F8F, 0x965E, 0xAE88, 0xC882, 0xE341
+};
+
+const uint16 TownsAudioInterface::_pcmPhase2[] =  {
+	0xFEFE, 0xF1A0, 0xE411, 0xD744, 0xCB2F, 0xBFC7, 0xB504, 0xAAE2, 0xA144, 0x9827, 0x8FAC
+};
+
+TownsAudio_PcmChannel::TownsAudio_PcmChannel() {
+	extData = 0;
+	clear();
+}
+
+TownsAudio_PcmChannel::~TownsAudio_PcmChannel() {
+	clear();
+}
+
+void TownsAudio_PcmChannel::loadExtData(uint8 *buffer, uint32 size) {
+	delete[] extData;
+	extData = new int8[size];	
+	int8 *src = (int8*)buffer;
+	int8 *dst = extData;
+	for (uint32 i = 0; i < size; i++)
+		*dst++ = *src & 0x80 ? (*src++ & 0x7f) : -*src++;
+
+	data = extData;
+	dataEnd = extData + size;
+	pos = 0;
+}
+
+void TownsAudio_PcmChannel::setupLoop(uint32 start, uint32 len) {
+	loopLen = len << 11;
+	loopEnd = loopLen ? &data[(start + loopLen) >> 11] : dataEnd;
+	pos = start;
+}
+
+void TownsAudio_PcmChannel::clear() {
+		curInstrument = 0;
+		note = 0;
+		velo = 0;
+		
+		data = 0;
+		dataEnd = 0;
+		loopLen = 0;
+
+		pos = 0;
+		loopEnd = 0;
+
+		step = 0;
+		stepNote = 0x4000;
+		stepPitch = 0x4000;
+
+		panLeft = panRight = 0;
+
+		envTotalLevel = envAttackRate = envDecayRate = envSustainLevel =
+		envSustainRate = envReleaseRate = 0;
+		envStep = envCurrentLevel = 0;
+
+		envState = kEnvReady;
+		
+		delete[] extData;
+		extData = 0;
+}
+
+void TownsAudio_PcmChannel::envAttack() {
+	envState = kEnvAttacking;
+	int16 t = envTotalLevel << 8;	
+	if (envAttackRate == 127) {
+		envStep = 0;
+	} else if (envAttackRate) {
+		envStep = t / envAttackRate;
+		envCurrentLevel = 1;
+	} else {
+		envCurrentLevel = t;
+		envDecay();
+	}
+}
+
+void TownsAudio_PcmChannel::envDecay() {
+	envState = kEnvDecaying;
+	int16 t = envTotalLevel - envSustainLevel;
+	if (t < 0 || envDecayRate == 127) {
+		envStep = 0;
+	} else if (envDecayRate) {
+		envStep = (t << 8) / envDecayRate;		
+	} else {
+		envCurrentLevel = envSustainLevel << 8;
+		envSustain();
+	}
+}
+
+void TownsAudio_PcmChannel::envSustain() {
+	envState = kEnvSustaining;
+	if (envSustainLevel && envSustainRate)
+		envStep = (envSustainRate == 127) ? 0 : (envCurrentLevel / envSustainRate) >> 1;
+	else
+		envStep = envCurrentLevel = 1;
+}
+
+void TownsAudio_PcmChannel::envRelease() {
+	envState = kEnvReleasing;
+	if (envReleaseRate == 127)
+		envStep = 0;
+	else if (envReleaseRate)
+		envStep = envCurrentLevel / envReleaseRate;
+	else
+		envStep = envCurrentLevel = 1;
+}
+
+TownsAudio_WaveTable::TownsAudio_WaveTable() {
+	data = 0;
+	clear();
+}
+
+TownsAudio_WaveTable::~TownsAudio_WaveTable() {
+	clear();
+}
+
+void TownsAudio_WaveTable::readHeader(const uint8 *buffer) {
+	memcpy(name, buffer, 8);
+	name[8] = 0;
+	id = READ_LE_UINT32(&buffer[8]);
+	size = READ_LE_UINT32(&buffer[12]);
+	loopStart = READ_LE_UINT32(&buffer[16]);
+	loopLen = READ_LE_UINT32(&buffer[20]);
+	rate = READ_LE_UINT16(&buffer[24]);
+	rateOffs = READ_LE_UINT16(&buffer[26]);
+	baseNote = READ_LE_UINT32(&buffer[28]);
+}
+
+void TownsAudio_WaveTable::readData(const uint8 *buffer) {
+	if (!size)
+		return;
+
+	delete[] data;
+	data = new int8[size];
+	
+	const int8 *src = (const int8*)buffer;
+	int8 *dst = data;
+	for (uint32 i = 0; i < size; i++)
+		*dst++ = *src & 0x80 ? (*src++ & 0x7f) : -*src++;
+}
+
+void TownsAudio_WaveTable::clear() {
+	name[0] = name[8] = 0;
+	id = -1;
+	size = 0;
+	loopStart = 0;
+	loopLen = 0;
+	rate = 0;
+	rateOffs = 0;
+	baseNote = 0;
+	delete[] data;
+	data = 0;
+}
+
diff --git a/sound/softsynth/fmtowns_pc98/towns_audio.h b/sound/softsynth/fmtowns_pc98/towns_audio.h
new file mode 100644
index 0000000000..82d390d9b6
--- /dev/null
+++ b/sound/softsynth/fmtowns_pc98/towns_audio.h
@@ -0,0 +1,162 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef TOWNS_AUDIO_H
+#define TOWNS_AUDIO_H
+
+#include "sound/softsynth/fmtowns_pc98/towns_pc98_fmsynth.h"
+
+class TownsAudioInterfacePluginDriver {
+public:
+	virtual void timerCallback(int timerId) = 0;
+};
+
+class TownsAudio_PcmChannel;
+class TownsAudio_WaveTable;
+
+class TownsAudioInterface : public TownsPC98_FmSynth {
+public:
+	TownsAudioInterface(Audio::Mixer *mixer, TownsAudioInterfacePluginDriver *driver);
+	~TownsAudioInterface();
+
+	bool init();
+
+	int callback(int command, ...);	
+
+private:
+	void nextTickEx(int32 *buffer, uint32 bufferSize);
+
+	void timerCallbackA();
+	void timerCallbackB();
+
+	typedef int (TownsAudioInterface::*TownsAudioIntfCallback)(va_list&);
+	const TownsAudioIntfCallback *_intfOpcodes;
+
+	int intf_reset(va_list &args);
+	int intf_keyOn(va_list &args);
+	int intf_keyOff(va_list &args);
+	int intf_setPanPos(va_list &args);
+	int intf_setInstrument(va_list &args);
+	int intf_loadInstrument(va_list &args);
+	int intf_setPitch(va_list &args);
+	int intf_setLevel(va_list &args);
+	int intf_chanOff(va_list &args);
+	int intf_writeReg(va_list &args);
+	int intf_bufferedWriteReg(va_list &args);
+	int intf_readRegBuffer(va_list &args);
+	int intf_setTimerA(va_list &args);
+	int intf_setTimerB(va_list &args);
+	int intf_enableTimerA(va_list &args);
+	int intf_enableTimerB(va_list &args);	
+	int intf_reserveEffectChannels(va_list &args);
+	int intf_loadWaveTable(va_list &args);
+	int intf_unloadWaveTable(va_list &args);
+	int intf_pcmPlayEffect(va_list &args);
+	int intf_pcmChanOff(va_list &args);
+	int intf_pcmEffectPlaying(va_list &args);
+	int intf_fmKeyOn(va_list &args);
+	int intf_fmKeyOff(va_list &args);
+	int intf_fmSetPanPos(va_list &args);
+	int intf_fmSetInstrument(va_list &args);
+	int intf_fmLoadInstrument(va_list &args);
+	int intf_fmSetPitch(va_list &args);
+	int intf_fmSetLevel(va_list &args);
+	int intf_fmReset(va_list &args);
+	int intf_cdaSetVolume(va_list &args);
+	int intf_cdaReset(va_list &args);
+	int intf_pcmUpdateEnvelopeGenerator(va_list &args);
+
+	int intf_notImpl(va_list &args);
+	
+	void fmReset();
+	int fmKeyOn(int chan, int note, int velo);
+	int fmKeyOff(int chan);
+	int fmChanOff(int chan);
+	int fmSetPanPos(int chan, int mode);	
+	int fmSetInstrument(int chan, int instrId);
+	int fmLoadInstrument(int instrId, const uint8 *data);
+	int fmSetPitch(int chan, int pitch);
+	int fmSetLevel(int chan, int lvl);
+
+	void bufferedWriteReg(uint8 part, uint8 regAddress, uint8 value);
+	
+	uint8 _fmChanPlaying;
+	uint8 _fmChanNote[6];
+	int16 _fmChanPitch[6];
+
+	uint8 *_fmSaveReg[2];
+	uint8 *_fmInstruments;
+	
+	void pcmReset();
+	int pcmKeyOn(int chan, int note, int velo);
+	int pcmKeyOff(int chan);
+	int pcmChanOff(int chan);
+	int pcmSetPanPos(int chan, int mode);
+	int pcmSetInstrument(int chan, int instrId);
+	int pcmLoadInstrument(int instrId, const uint8 *data);
+	int pcmSetPitch(int chan, int pitch);
+	int pcmSetLevel(int chan, int lvl);
+	void pcmUpdateEnvelopeGenerator(int chan);
+
+	TownsAudio_PcmChannel *_pcmChan;
+	uint8 _pcmChanOut;
+	uint8 _pcmChanReserved;
+	uint8 _pcmChanKeyPressed;
+	uint8 _pcmChanEffectPlaying;
+	uint8 _pcmChanKeyPlaying;
+	
+	uint8 _pcmChanNote[8];
+	uint8 _pcmChanVelo[8];
+	uint8 _pcmChanLevel[8];
+
+	uint8 _numReservedChannels;
+	uint8 *_pcmInstruments;
+	
+	TownsAudio_WaveTable *_waveTables;
+	uint8 _numWaveTables;
+	uint32 _waveTablesTotalDataSize;
+
+	void pcmCalcPhaseStep(TownsAudio_PcmChannel *p, TownsAudio_WaveTable *w);
+
+	void cdaReset();
+
+	const float _baserate;
+	uint32 _timerBase;
+	uint32 _tickLength;
+	uint32 _timer;
+
+	TownsAudioInterfacePluginDriver *_drv;
+	bool _ready;
+
+	static const uint8 _chanFlags[];
+	static const uint16 _frequency[];
+	static const uint8 _carrier[];
+	static const uint8 _fmDefaultInstrument[];
+	static const uint16 _pcmPhase1[];
+	static const uint16 _pcmPhase2[];	
+};
+
+#endif
+
diff --git a/sound/softsynth/fmtowns_pc98/towns_euphony.cpp b/sound/softsynth/fmtowns_pc98/towns_euphony.cpp
new file mode 100644
index 0000000000..54b5d5b1d6
--- /dev/null
+++ b/sound/softsynth/fmtowns_pc98/towns_euphony.cpp
@@ -0,0 +1,886 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "sound/softsynth/fmtowns_pc98/towns_euphony.h"
+#include "common/endian.h"
+
+TownsEuphonyDriver::TownsEuphonyDriver(Audio::Mixer *mixer) : _activeChannels(0), _sustainChannels(0),
+	_assignedChannels(0), _paraCount(0), _command(0), _tEnable(0), _tMode(0), _tOrdr(0), _tLevel(0),
+	_tTranspose(0), _musicPos(0), _musicStart(0), _playing(false), _eventBuffer(0), _bufferedEventsCount(0),
+	_tempoControlMode(0) {
+	_para[0] = _para[1] = 0;
+	_intf = new TownsAudioInterface(mixer, this);
+	resetTempo();
+}
+
+TownsEuphonyDriver::~TownsEuphonyDriver() {
+	delete[] _activeChannels;
+	delete[] _sustainChannels;
+	delete[] _assignedChannels;
+
+	delete[] _tEnable;
+	delete[] _tMode;
+	delete[] _tOrdr;
+	delete[] _tLevel;
+	delete[] _tTranspose;
+
+	delete _intf;
+}
+
+bool TownsEuphonyDriver::init() {
+	if (!_intf->init())
+		return false;
+
+	_activeChannels = new int8[16];
+	_sustainChannels = new int8[16];
+	_assignedChannels = new ActiveChannel[128];
+	_eventBuffer = new DlEvent[64];
+
+	_tEnable = new uint8[32];
+	_tMode = new uint8[32];
+	_tOrdr = new uint8[32];
+	_tLevel = new int8[32];
+	_tTranspose = new int8[32];
+	
+	reset();
+
+	cdaSetVolume(1, 118, 118);
+
+	return true;
+}
+
+void TownsEuphonyDriver::reset() {
+	_intf->callback(0);
+
+	_intf->callback(74);
+	_intf->callback(70);
+	_intf->callback(75, 3);
+
+	setTimerA(true, 1);
+	setTimerA(false, 1);
+	setTimerB(true, 221);
+
+	_paraCount = _command = _para[0] = _para[1] = 0;
+	memset(_sustainChannels, 0, 16);
+	memset(_activeChannels, -1, 16);
+	for (int i = 0; i < 128; i++) {
+		_assignedChannels[i].chan = _assignedChannels[i].next = -1;
+		_assignedChannels[i].note = _assignedChannels[i].sub = 0;
+	}
+
+	int e = 0;
+	for (int i = 0; i < 6; i++)
+		assignChannel(i, e++);
+	for (int i = 0x40; i < 0x48; i++)
+		assignChannel(i, e++);
+
+	resetTables();
+	
+	memset(_eventBuffer, 0, 64 * sizeof(DlEvent));
+	_bufferedEventsCount = 0;
+
+	_playing = _endOfTrack = _suspendParsing = _loop = false;
+	_elapsedEvents = 0;
+	_tempoDiff = 0;
+
+	resetTempo();
+
+	if (_tempoControlMode == 1) {
+		//if (///)
+		//	return;
+		setTempoIntern(_defaultTempo);
+	} else {
+		setTempoIntern(_defaultTempo);
+	}
+	
+	resetControl();
+}
+
+void TownsEuphonyDriver::loadInstrument(int chanType, int id, const uint8 *data) {
+	_intf->callback(5, chanType, id, data);
+}
+
+void TownsEuphonyDriver::loadWaveTable(const uint8 *data) {
+	_intf->callback(34, data);
+}
+
+void TownsEuphonyDriver::unloadWaveTable(int id) {
+	_intf->callback(35, id);
+}
+
+void TownsEuphonyDriver::reserveSfxChannels(int num) {
+	_intf->callback(33, num);
+}
+
+int TownsEuphonyDriver::setMusicTempo(int tempo) {
+	if (tempo > 250)
+		return 3;
+	_defaultTempo = tempo;
+	_trackTempo = tempo;
+	setTempoIntern(tempo);
+	return 0;
+}
+
+int TownsEuphonyDriver::startMusicTrack(const uint8 *data, int trackSize, int startTick) {
+	if (_playing)
+		return 2;
+
+	_musicPos = _musicStart = data;
+	_defaultBaseTickLen = _baseTickLen = startTick;
+	_musicTrackSize = trackSize;
+	_timeStampBase = _timeStampDest = 0;
+	_tickCounter = 0;
+	_playing = true;	
+	
+	return 0;
+}
+
+void TownsEuphonyDriver::setMusicLoop(bool loop) {
+	_loop = loop;
+}
+
+void TownsEuphonyDriver::stopParser() {
+	if (_playing) {
+		_playing = false;
+		_pulseCount = 0;
+		_endOfTrack = false;
+		flushEventBuffer();
+		resetControl();
+	}
+}
+
+void TownsEuphonyDriver::playSoundEffect(int chan, int note, int velo, const uint8 *data) {
+	_intf->callback(37, chan, note, velo, data);
+}
+
+void TownsEuphonyDriver::stopSoundEffect(int chan) {
+	_intf->callback(39, chan);
+}
+
+bool TownsEuphonyDriver::soundEffectIsPlaying(int chan) {
+	return _intf->callback(40, chan) ? true : false;
+}
+
+void TownsEuphonyDriver::chanStereo(int chan, int mode) {
+	_intf->callback(3, chan, mode);
+}
+
+void TownsEuphonyDriver::chanPitch(int chan, int pitch) {
+	_intf->callback(7, chan, pitch);
+}
+
+void TownsEuphonyDriver::chanVolume(int chan, int vol) {
+	_intf->callback(8, chan, vol);
+}
+
+void TownsEuphonyDriver::cdaSetVolume(int a, int vol1, int vol2) {
+	_intf->callback(67, a, vol1, vol2);
+}
+
+int TownsEuphonyDriver::chanEnable(int tableEntry, int val) {
+	if (tableEntry > 31)
+		return 3;
+	_tEnable[tableEntry] = val;
+	return 0;
+}
+
+int TownsEuphonyDriver::chanMode(int tableEntry, int val) {
+	if (tableEntry > 31)
+		return 3;
+	_tMode[tableEntry] = val;
+	return 0;
+}
+
+int TownsEuphonyDriver::chanOrdr(int tableEntry, int val) {
+	if (tableEntry > 31)
+		return 3;
+	if (val < 16)
+		_tOrdr[tableEntry] = val;
+	return 0;
+}
+
+int TownsEuphonyDriver::chanLevel(int tableEntry, int val) {
+	if (tableEntry > 31)
+		return 3;
+	if (val <= 40)
+		_tLevel[tableEntry] = (int8) (val & 0xff);
+	return 0;
+}
+
+int TownsEuphonyDriver::chanTranspose(int tableEntry, int val) {
+	if (tableEntry > 31)
+		return 3;
+	if (val <= 40)
+		_tTranspose[tableEntry] = (int8) (val & 0xff);
+	return 0;
+}
+
+int TownsEuphonyDriver::assignChannel(int chan, int tableEntry) {
+	if (tableEntry > 15 || chan > 127 || chan < 0)
+		return 3;
+	
+	ActiveChannel *a = &_assignedChannels[chan];
+	if (a->chan == tableEntry)
+		return 0;
+
+	if (a->chan != -1) {
+		int8 *b = &_activeChannels[a->chan];
+		while(*b != chan) {
+			b = &_assignedChannels[*b].next;
+			if (*b == -1 && *b != chan)
+				return 3;
+		}
+
+		*b = a->next;
+
+		if (a->note)
+			_intf->callback(2, chan);
+
+		a->chan = a->next = -1;
+		a->note = 0;
+	}
+
+	a->next = _activeChannels[tableEntry];
+	_activeChannels[tableEntry] = chan;
+	a->chan = tableEntry;
+	a->note = a->sub = 0;
+
+	return 0;
+}
+
+void TownsEuphonyDriver::timerCallback(int timerId) {
+	switch (timerId) {
+		case 0:
+			updatePulseCount();
+			while (_pulseCount > 0) {
+				--_pulseCount;
+				updateTimeStampBase();
+				if (!_playing)
+					continue;
+				updateEventBuffer();
+				updateParser();
+				updateCheckEot();
+			}
+			break;
+		default:
+			break;
+	}
+}
+
+void TownsEuphonyDriver::resetTables() {
+	memset(_tEnable, 0xff, 32);
+	memset(_tMode, 0xff, 16);
+	memset(_tMode + 16, 0, 16);
+	for (int i = 0; i < 32; i++)
+		_tOrdr[i] = i & 0x0f;
+	memset(_tLevel, 0, 32);
+	memset(_tTranspose, 0, 32);
+}
+
+void TownsEuphonyDriver::resetTempo() {
+	_defaultBaseTickLen = _baseTickLen = 0x33;
+	_pulseCount = 0;
+	_extraTimingControlRemainder = 0;
+	_extraTimingControl = 16;
+	_tempoModifier = 0;
+	_timeStampDest = 0;
+	_deltaTicks = 0;
+	_tickCounter = 0;
+	_defaultTempo = 90;
+	_trackTempo = 90;
+}
+
+void TownsEuphonyDriver::setTempoIntern(int tempo) {
+	tempo = CLIP(tempo + _tempoModifier, 0, 500);
+	if (_tempoControlMode == 0) {
+		_timerSetting = 34750 / (tempo + 30);
+		_extraTimingControl = 16;
+
+		while (_timerSetting < 126) {
+			_timerSetting <<= 1;
+			_extraTimingControl <<= 1;
+		}
+
+		while (_timerSetting > 383) {
+			_timerSetting >>= 1;
+			_extraTimingControl >>= 1;
+		}
+
+		setTimerA(true, -(_timerSetting - 2));
+
+	} else if (_tempoControlMode == 1) {
+		_timerSetting = 312500 / (tempo + 30);
+		_extraTimingControl = 16;
+		while (_timerSetting < 1105) {
+			_timerSetting <<= 1;
+			_extraTimingControl <<= 1;
+		}
+
+	} else if (_tempoControlMode == 2) {
+		_timerSetting = 625000 / (tempo + 30);
+		_extraTimingControlRemainder = 0;
+	}
+}
+
+void TownsEuphonyDriver::setTimerA(bool enable, int tempo) {
+	_intf->callback(21, enable ? 255 : 0, tempo);
+}
+
+void TownsEuphonyDriver::setTimerB(bool enable, int tempo) {
+	_intf->callback(22, enable ? 255 : 0, tempo);
+}
+
+void TownsEuphonyDriver::updatePulseCount() {
+	int tc = _extraTimingControl + _extraTimingControlRemainder;
+	_extraTimingControlRemainder = tc & 0x0f;
+	tc >>= 4;
+	_tempoDiff -= tc;
+
+	while (_tempoDiff < 0) {
+		_elapsedEvents++;
+		_tempoDiff += 4;
+	}
+
+	if (_playing && !_suspendParsing)
+		_pulseCount += tc;
+}
+
+void TownsEuphonyDriver::updateTimeStampBase() {
+	static const uint16 table[] = { 0x180, 0xC0, 0x80, 0x60, 0x40, 0x30, 0x20, 0x18 };
+	if ((uint32)(table[_baseTickLen >> 4] * ((_baseTickLen & 0x0f) + 1)) > ++_tickCounter)
+		return;
+	++_timeStampDest;
+	_tickCounter = 0;
+	_deltaTicks = 0;
+}
+
+void TownsEuphonyDriver::updateParser() {
+	for (bool loop = true; loop; ) {
+		uint8 cmd = _musicPos[0];
+
+		if (cmd == 0xff || cmd == 0xf7) {
+			jumpNextLoop();
+
+		} else if (cmd < 0x90) {
+			_endOfTrack = true;
+			flushEventBuffer();
+			loop = false;
+
+		} else if (_timeStampBase > _timeStampDest) {
+			loop = false;
+
+		} else {
+			if (_timeStampBase == _timeStampDest) {
+				uint16 timeStamp = READ_LE_UINT16(&_musicPos[2]);
+				uint8 l = (timeStamp & 0xff) + (timeStamp & 0xff);
+				timeStamp = ((timeStamp & 0xff00) | l) >> 1;
+				if (timeStamp > _tickCounter)
+					loop = false;
+			}
+
+			if (loop) {
+				if (parseNext())
+					loop = false;
+			}
+		}
+	}
+}
+
+void TownsEuphonyDriver::updateCheckEot() {
+	if (!_endOfTrack || _bufferedEventsCount)
+		return;
+	stopParser();
+}
+
+bool TownsEuphonyDriver::parseNext() {
+#define OPC(x)	&TownsEuphonyDriver::evt##x
+	static const EuphonyOpcode opcodes[] = {
+		OPC(NotImpl),
+		OPC(SetupNote),
+		OPC(PolyphonicAftertouch),
+		OPC(ControlPitch),
+		OPC(InstrumentChanAftertouch),
+		OPC(InstrumentChanAftertouch),
+		OPC(ControlPitch)
+	};
+#undef OPC
+
+	uint cmd = _musicPos[0];
+	if (cmd != 0xfe && cmd != 0xfd) {
+		if (cmd >= 0xf0 ) {
+			cmd &= 0x0f;
+			if (cmd == 0)
+				evtLoadInstrument();
+			else if (cmd == 2)
+				evtAdvanceTimestampOffset();
+			else if (cmd == 8)
+				evtTempo();
+			else if (cmd == 12)
+				evtModeOrdrChange();
+			jumpNextLoop();
+			return false;
+
+		} else if (!(this->*opcodes[(cmd - 0x80) >> 4])()) {
+			jumpNextLoop();
+			return false;
+		}
+	}
+
+	if (cmd == 0xfd) {
+		_suspendParsing = true;
+		return true;
+	}
+
+	if (!_loop) {
+		_endOfTrack = true;
+		return true;
+	}
+
+	_endOfTrack = false;
+	_musicPos = _musicStart;
+	_timeStampBase = _timeStampDest = _tickCounter = 0;
+	_baseTickLen = _defaultBaseTickLen;	
+
+	return false;
+}
+
+void TownsEuphonyDriver::jumpNextLoop() {
+	_musicPos += 6;
+	if (_musicPos >= _musicStart + _musicTrackSize)
+		_musicPos = _musicStart;
+}
+
+void TownsEuphonyDriver::updateEventBuffer() {
+	DlEvent *e = _eventBuffer;
+	for (int i = _bufferedEventsCount; i; e++) {
+		if (e->evt == 0)
+			continue;
+		if (--e->len) {
+			--i;
+			continue;
+		}
+		processBufferNote(e->mode, e->evt, e->note, e->velo);
+		e->evt = 0;
+		--i;
+		--_bufferedEventsCount;
+	}
+}
+
+void TownsEuphonyDriver::flushEventBuffer() {
+	DlEvent *e = _eventBuffer;
+	for (int i = _bufferedEventsCount; i; e++) {
+		if (e->evt == 0)
+			continue;
+		processBufferNote(e->mode, e->evt, e->note, e->velo);
+		e->evt = 0;
+		--i;
+		--_bufferedEventsCount;
+	}
+}
+
+void TownsEuphonyDriver::processBufferNote(int mode, int evt, int note, int velo) {
+	if (!velo)
+		evt &= 0x8f;
+	sendEvent(mode, evt);
+	sendEvent(mode, note);
+	sendEvent(mode, velo);
+}
+
+void TownsEuphonyDriver::resetControl() {
+	for (int i = 0; i < 32; i++) {
+		if (_tOrdr[i] > 15) {
+			for (int ii = 0; ii < 16; ii++)
+				resetControlIntern(_tMode[i], ii);
+		} else {
+			resetControlIntern(_tMode[i], _tOrdr[i]);
+		}
+	}
+}
+
+void TownsEuphonyDriver::resetControlIntern(int mode, int chan) {
+	sendEvent(mode, 0xb0 | chan);
+	sendEvent(mode, 0x40);
+	sendEvent(mode, 0);
+	sendEvent(mode, 0xb0 | chan);
+	sendEvent(mode, 0x7b);
+	sendEvent(mode, 0);
+	sendEvent(mode, 0xb0 | chan);
+	sendEvent(mode, 0x79);
+	sendEvent(mode, 0x40);
+}
+
+uint8 TownsEuphonyDriver::appendEvent(uint8 evt, uint8 chan) {
+	if (evt >= 0x80 && evt < 0xf0 && _tOrdr[chan] < 16)
+		return (evt & 0xf0) | _tOrdr[chan];
+	return evt;
+}
+
+void TownsEuphonyDriver::sendEvent(uint8 mode, uint8 command) {
+	if (mode == 0) {
+		warning("TownsEuphonyDriver: Mode 0 not implemented.");
+
+	} else if (mode == 0x10) {
+		warning("TownsEuphonyDriver: Mode 0x10 not implemented.");
+		
+	} else if (mode == 0xff) {
+		if (command >= 0xf0) {
+			_paraCount = 1;
+			_command = 0;
+		} else if (command >= 0x80) {
+			_paraCount = 1;
+			_command = command;
+		} else if (_command >= 0x80) {
+			switch ((_command - 0x80) >> 4) {
+				case 0:
+					if (_paraCount < 2) {
+						_paraCount++;
+						_para[0] = command;
+					} else {
+						_paraCount = 1;
+						_para[1] = command;
+						sendNoteOff();
+					}
+					break;
+
+				case 1:
+					if (_paraCount < 2) {
+						_paraCount++;
+						_para[0] = command;
+					} else {
+						_paraCount = 1;
+						_para[1] = command;
+						if (command)
+							sendNoteOn();
+						else
+							sendNoteOff();						
+					}	
+					break;
+
+				case 2:
+					if (_paraCount < 2) {
+						_paraCount++;
+						_para[0] = command;
+					} else {
+						_paraCount = 1;
+					}						
+					break;
+
+				case 3:
+					if (_paraCount < 2) {
+						_paraCount++;
+						_para[0] = command;
+					} else {
+						_paraCount = 1;
+						_para[1] = command;
+
+						if (_para[0] == 7)
+							sendChanVolume();
+						else if (_para[0] == 10)
+							sendPanPosition();
+						else if (_para[0] == 64)
+							sendAllNotesOff();
+					}
+					break;
+
+				case 4:
+					_paraCount = 1;
+					_para[0] = command;
+					sendSetInstrument();
+					break;
+
+				case 5:
+					_paraCount = 1;
+					_para[0] = command;
+					break;
+
+				case 6:
+					if (_paraCount < 2) {
+						_paraCount++;
+						_para[0] = command;
+					} else {
+						_paraCount = 1;
+						_para[1] = command;
+						sendPitch();
+					}
+					break;
+			}
+		}
+	}
+}
+
+bool TownsEuphonyDriver::evtSetupNote() {
+	if (_musicPos[1] > 31)
+		return false;
+	if (!_tEnable[_musicPos[1]]) {
+		jumpNextLoop();
+		return (_musicPos[0] == 0xfe || _musicPos[0] == 0xfd) ? true : false;
+	}
+	uint8 evt = appendEvent(_musicPos[0], _musicPos[1]);
+	uint8 mode = _tMode[_musicPos[1]];
+	uint8 note = _musicPos[4];
+	uint8 velo = _musicPos[5];
+
+	sendEvent(mode, evt);
+	sendEvent(mode, prepTranspose(note));
+	sendEvent(mode, prepVelo(velo));
+
+	jumpNextLoop();
+	if (_musicPos[0] == 0xfe || _musicPos[0] == 0xfd)
+		return true;
+
+	velo = _musicPos[5];
+	uint16 len = ((((_musicPos[1] << 4) | (_musicPos[2] << 8)) >> 4) & 0xff) | ((((_musicPos[3] << 4) | (_musicPos[4] << 8)) >> 4) << 8);
+
+	int i = 0;
+	for (; i < 64; i++) {
+		if (_eventBuffer[i].evt == 0)
+			break;
+	}
+	
+	if (i == 64) {
+		processBufferNote(mode, evt, note, velo);
+	} else {
+		_eventBuffer[i].evt = evt;
+		_eventBuffer[i].mode = mode;
+		_eventBuffer[i].note = note;
+		_eventBuffer[i].velo = velo;
+		_eventBuffer[i].len = len ? len : 1;
+		_bufferedEventsCount++;
+	}
+
+	return false;
+}
+
+bool TownsEuphonyDriver::evtPolyphonicAftertouch() {
+	if (_musicPos[1] > 31)
+		return false;
+	if (!_tEnable[_musicPos[1]])
+		return false;
+	
+	uint8 evt = appendEvent(_musicPos[0], _musicPos[1]);
+	uint8 mode = _tMode[_musicPos[1]];
+
+	sendEvent(mode, evt);
+	sendEvent(mode, prepTranspose(_musicPos[4]));
+	sendEvent(mode, _musicPos[5]);
+
+	return false;
+}
+
+bool TownsEuphonyDriver::evtControlPitch() {
+	if (_musicPos[1] > 31)
+		return false;
+	if (!_tEnable[_musicPos[1]])
+		return false;
+	
+	uint8 evt = appendEvent(_musicPos[0], _musicPos[1]);
+	uint8 mode = _tMode[_musicPos[1]];
+
+	sendEvent(mode, evt);
+	sendEvent(mode, _musicPos[4]);
+	sendEvent(mode, _musicPos[5]);
+
+	return false;
+}
+
+bool TownsEuphonyDriver::evtInstrumentChanAftertouch() {
+	if (_musicPos[1] > 31)
+		return false;
+	if (!_tEnable[_musicPos[1]])
+		return false;
+	
+	uint8 evt = appendEvent(_musicPos[0], _musicPos[1]);
+	uint8 mode = _tMode[_musicPos[1]];
+
+	sendEvent(mode, evt);
+	sendEvent(mode, _musicPos[4]);
+
+	return false;
+}
+
+bool TownsEuphonyDriver::evtLoadInstrument() {
+	return false;
+}
+
+bool TownsEuphonyDriver::evtAdvanceTimestampOffset() {
+	++_timeStampBase;
+	_baseTickLen = _musicPos[1];
+	return false;
+}
+
+bool TownsEuphonyDriver::evtTempo() {
+	uint8 l = _musicPos[4] << 1;
+	_trackTempo = (l | (_musicPos[5] << 8)) >> 1;
+	setTempoIntern(_trackTempo);
+	return false;
+}
+
+bool TownsEuphonyDriver::evtModeOrdrChange() {
+	if (_musicPos[1] > 31)
+		return false;
+	if (!_tEnable[_musicPos[1]])
+		return false;
+
+	if (_musicPos[4] == 1)
+		_tMode[_musicPos[1]] = _musicPos[5];
+	else if (_musicPos[4] == 2)
+		_tOrdr[_musicPos[1]] = _musicPos[5];
+
+	return false;
+}
+
+uint8 TownsEuphonyDriver::prepTranspose(uint8 in) {
+	int out = _tTranspose[_musicPos[1]];
+	if (!out)
+		return in;
+	out += (in & 0x7f);
+
+	if (out > 127)
+		out -= 12;
+
+	if (out < 0)
+		out += 12;
+
+	return out & 0xff;
+}
+
+uint8 TownsEuphonyDriver::prepVelo(uint8 in) {
+	int out = _tLevel[_musicPos[1]];
+	out += (in & 0x7f);
+	out = CLIP(out, 1, 127);
+
+	return out & 0xff;
+}
+
+void TownsEuphonyDriver::sendNoteOff() {
+	int8 *chan = &_activeChannels[_command & 0x0f];
+	if (*chan == -1)
+		return;
+
+	while (_assignedChannels[*chan].note != _para[0]) {
+		chan = &_assignedChannels[*chan].next;
+		if (*chan == -1)
+			return;
+	}
+
+	if (_sustainChannels[_command & 0x0f]) {
+		_assignedChannels[*chan].note |= 0x80;
+	} else {
+		_assignedChannels[*chan].note = 0;
+		_intf->callback(2, *chan);
+	}
+}
+
+void TownsEuphonyDriver::sendNoteOn() {
+	if (!_para[0])
+		return;
+	int8 *chan = &_activeChannels[_command & 0x0f];
+	if (*chan == -1)
+		return;
+
+	do {
+		_assignedChannels[*chan].sub++;
+		chan = &_assignedChannels[*chan].next;
+	} while (*chan != -1);
+
+	chan = &_activeChannels[_command & 0x0f];
+
+	int d = 0;
+	int c = 0;
+	bool found = false;
+
+	do {
+		if (!_assignedChannels[*chan].note) {
+			found = true;
+			break;
+		}
+		if (d <= _assignedChannels[*chan].sub) {
+			c = *chan;
+			d = _assignedChannels[*chan].sub;
+		}
+		chan = &_assignedChannels[*chan].next;
+	} while (*chan != -1);
+
+	if (found)
+		c = *chan;
+	else
+		_intf->callback(2, c);		
+	
+	_assignedChannels[c].note = _para[0];
+	_assignedChannels[c].sub = 0;
+	_intf->callback(1, c, _para[0], _para[1]);
+}
+
+void TownsEuphonyDriver::sendChanVolume() {
+	int8 *chan = &_activeChannels[_command & 0x0f];
+	while (*chan != -1) {
+		_intf->callback(8, *chan, _para[1] & 0x7f);		
+		chan = &_assignedChannels[*chan].next;
+	};
+}
+
+void TownsEuphonyDriver::sendPanPosition() {
+	int8 *chan = &_activeChannels[_command & 0x0f];
+	while (*chan != -1) {
+		_intf->callback(3, *chan, _para[1] & 0x7f);		
+		chan = &_assignedChannels[*chan].next;
+	};
+}
+
+void TownsEuphonyDriver::sendAllNotesOff() {
+	if (_para[1] > 63) {
+		_sustainChannels[_command & 0x0f] = -1;
+		return;
+	}
+
+	_sustainChannels[_command & 0x0f] = 0;
+	int8 *chan = &_activeChannels[_command & 0x0f];
+	while (*chan != -1) {
+		if (_assignedChannels[*chan].note & 0x80) {
+			_assignedChannels[*chan].note = 0;
+			_intf->callback(2, *chan);
+		}
+		chan = &_assignedChannels[*chan].next;
+	};
+}
+
+void TownsEuphonyDriver::sendSetInstrument() {
+	int8 *chan = &_activeChannels[_command & 0x0f];
+	while (*chan != -1) {
+		_intf->callback(4, *chan, _para[0]);
+		_intf->callback(7, *chan, 0);
+		chan = &_assignedChannels[*chan].next;
+	};
+}
+
+void TownsEuphonyDriver::sendPitch() {
+	int8 *chan = &_activeChannels[_command & 0x0f];
+	while (*chan != -1) {
+		_para[0] += _para[0];
+		int16 pitch = (((READ_LE_UINT16(_para)) >> 1) & 0x3fff) - 0x2000;
+		_intf->callback(7, *chan, pitch);
+		chan = &_assignedChannels[*chan].next;
+	};
+}
diff --git a/sound/softsynth/fmtowns_pc98/towns_euphony.h b/sound/softsynth/fmtowns_pc98/towns_euphony.h
new file mode 100644
index 0000000000..315e4ab4f0
--- /dev/null
+++ b/sound/softsynth/fmtowns_pc98/towns_euphony.h
@@ -0,0 +1,178 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef TOWNS_EUP_H
+#define TOWNS_EUP_H
+
+#include "sound/softsynth/fmtowns_pc98/towns_audio.h"
+
+class TownsEuphonyDriver : public TownsAudioInterfacePluginDriver {
+public:
+	TownsEuphonyDriver(Audio::Mixer *mixer);
+	virtual ~TownsEuphonyDriver();
+
+	bool init();
+	void reset();
+
+	void loadInstrument(int chanType, int id, const uint8 *data);
+	void loadWaveTable(const uint8 *data);
+	void unloadWaveTable(int id);
+	void reserveSfxChannels(int num);
+
+	int setMusicTempo(int tempo);
+	int startMusicTrack(const uint8 *data, int trackSize, int startTick);
+	void setMusicLoop(bool loop);
+	void stopParser();
+
+	void playSoundEffect(int chan, int note, int velo, const uint8 *data);
+	void stopSoundEffect(int chan);
+	bool soundEffectIsPlaying(int chan);
+
+	void chanStereo(int chan, int mode);
+	void chanPitch(int chan, int pitch);
+	void chanVolume(int chan, int vol);
+
+	void cdaSetVolume(int a, int vol1, int vol2);
+
+	int chanEnable(int tableEntry, int val);
+	int chanMode(int tableEntry, int val);
+	int chanOrdr(int tableEntry, int val);
+	int chanLevel(int tableEntry, int val);
+	int chanTranspose(int tableEntry, int val);
+
+	int assignChannel(int chan, int tableEntry);
+
+	void timerCallback(int timerId);
+
+	TownsAudioInterface *intf() { return _intf; }
+
+private:	
+	void resetTables();
+		
+	void resetTempo();
+	void setTempoIntern(int tempo);
+	void setTimerA(bool enable, int tempo);
+	void setTimerB(bool enable, int tempo);
+
+	void updatePulseCount();
+	void updateTimeStampBase();
+	void updateParser();
+	void updateCheckEot();
+
+	bool parseNext();
+	void jumpNextLoop();
+
+	void updateEventBuffer();
+	void flushEventBuffer();
+	void processBufferNote(int mode, int evt, int note, int velo);
+
+	void resetControl();
+	void resetControlIntern(int mode, int chan);
+	uint8 appendEvent(uint8 evt, uint8 chan);
+
+	void sendEvent(uint8 mode, uint8 command);
+	
+	typedef bool(TownsEuphonyDriver::*EuphonyOpcode)();
+	bool evtSetupNote();
+	bool evtPolyphonicAftertouch();
+	bool evtControlPitch();
+	bool evtInstrumentChanAftertouch();
+	bool evtLoadInstrument();
+	bool evtAdvanceTimestampOffset();
+	bool evtTempo();
+	bool evtModeOrdrChange();
+	bool evtNotImpl() { return false; }
+
+	uint8 prepTranspose(uint8 in);
+	uint8 prepVelo(uint8 in);
+
+	void sendNoteOff();
+	void sendNoteOn();
+	void sendChanVolume();
+	void sendPanPosition();
+	void sendAllNotesOff();
+	void sendSetInstrument();
+	void sendPitch();
+
+	int8 *_activeChannels;
+	int8 *_sustainChannels;
+	
+	struct ActiveChannel {
+		int8 chan;
+		int8 next;
+		uint8 note;
+		uint8 sub;
+	} *_assignedChannels;
+
+	uint8 *_tEnable;
+	uint8 *_tMode;
+	uint8 *_tOrdr;
+	int8 *_tLevel;
+	int8 *_tTranspose;
+
+	struct DlEvent {
+		uint8 evt;
+		uint8 mode;
+		uint8 note;
+		uint8 velo;
+		uint16 len;
+	} *_eventBuffer;
+	int _bufferedEventsCount;
+
+	uint8 _para[2];
+	uint8 _paraCount;
+	uint8 _command;
+
+	uint8 _defaultBaseTickLen;
+	uint8 _baseTickLen;
+	uint32 _pulseCount;
+	int _tempoControlMode;
+	int _extraTimingControlRemainder;
+	int _extraTimingControl;
+	int _timerSetting;
+	int8 _tempoDiff;
+	int _tempoModifier;
+	uint32 _timeStampDest;
+	uint32 _timeStampBase;
+	int8 _elapsedEvents;
+	uint8 _deltaTicks;
+	uint32 _tickCounter;
+	uint8 _defaultTempo;
+	int _trackTempo;
+
+	bool _loop;
+	bool _playing;
+	bool _endOfTrack;
+	bool _suspendParsing;
+
+	const uint8 *_musicStart;
+	const uint8 *_musicPos;
+	uint32 _musicTrackSize;
+
+	TownsAudioInterface *_intf;
+};
+
+#endif
+
diff --git a/sound/softsynth/fmtowns_pc98/towns_pc98_driver.cpp b/sound/softsynth/fmtowns_pc98/towns_pc98_driver.cpp
new file mode 100644
index 0000000000..1279429e7c
--- /dev/null
+++ b/sound/softsynth/fmtowns_pc98/towns_pc98_driver.cpp
@@ -0,0 +1,1403 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "sound/softsynth/fmtowns_pc98/towns_pc98_driver.h"
+#include "common/endian.h"
+
+class TownsPC98_MusicChannel {
+public:
+	TownsPC98_MusicChannel(TownsPC98_AudioDriver *driver, uint8 regOffs, uint8 flgs, uint8 num,
+		uint8 key, uint8 prt, uint8 id);
+	virtual ~TownsPC98_MusicChannel();
+	virtual void init();
+
+	typedef enum channelState {
+		CHS_RECALCFREQ		=	0x01,
+		CHS_KEYOFF			=	0x02,
+		CHS_SSGOFF			=	0x04,
+		CHS_VBROFF			=	0x08,
+		CHS_ALLOFF			=	0x0f,
+		CHS_PROTECT			=	0x40,
+		CHS_EOT				=	0x80
+	} ChannelState;
+
+	virtual void loadData(uint8 *data);
+	virtual void processEvents();
+	virtual void processFrequency();
+	virtual bool processControlEvent(uint8 cmd);
+
+	virtual void keyOn();
+	void keyOff();
+
+	void setOutputLevel();
+	virtual void fadeStep();
+	virtual void reset();
+
+	const uint8 _idFlag;
+
+protected:
+	void setupVibrato();
+	bool processVibrato();
+
+	bool control_dummy(uint8 para);
+	bool control_f0_setPatch(uint8 para);
+	bool control_f1_presetOutputLevel(uint8 para);
+	bool control_f2_setKeyOffTime(uint8 para);
+	bool control_f3_setFreqLSB(uint8 para);
+	bool control_f4_setOutputLevel(uint8 para);
+	bool control_f5_setTempo(uint8 para);
+	bool control_f6_repeatSection(uint8 para);
+	bool control_f7_setupVibrato(uint8 para);
+	bool control_f8_toggleVibrato(uint8 para);
+	bool control_fa_writeReg(uint8 para);
+	virtual bool control_fb_incOutLevel(uint8 para);
+	virtual bool control_fc_decOutLevel(uint8 para);
+	bool control_fd_jump(uint8 para);
+	virtual bool control_ff_endOfTrack(uint8 para);
+
+	uint8 _ticksLeft;
+	uint8 _algorithm;
+	uint8 _instr;
+	uint8 _totalLevel;
+	uint8 _frqBlockMSB;
+	int8 _frqLSB;
+	uint8 _keyOffTime;
+	bool _hold;
+	uint8 *_dataPtr;
+	uint8 _vbrInitDelayHi;
+	uint8 _vbrInitDelayLo;
+	int16 _vbrModInitVal;
+	uint8 _vbrDuration;
+	uint8 _vbrCurDelay;
+	int16 _vbrModCurVal;
+	uint8 _vbrDurLeft;
+	uint16 _frequency;
+	uint8 _block;
+	uint8 _regOffset;
+	uint8 _flags;
+	uint8 _ssgTl;
+	uint8 _ssgStep;
+	uint8 _ssgTicksLeft;
+	uint8 _ssgTargetLvl;
+	uint8 _ssgStartLvl;
+
+	const uint8 _chanNum;
+	const uint8 _keyNum;
+	const uint8 _part;
+
+	TownsPC98_AudioDriver *_drv;
+
+	typedef bool (TownsPC98_MusicChannel::*ControlEventFunc)(uint8 para);
+	const ControlEventFunc *controlEvents;
+};
+
+class TownsPC98_MusicChannelSSG : public TownsPC98_MusicChannel {
+public:
+	TownsPC98_MusicChannelSSG(TownsPC98_AudioDriver *driver, uint8 regOffs,
+		uint8 flgs, uint8 num, uint8 key, uint8 prt, uint8 id);
+	virtual ~TownsPC98_MusicChannelSSG() {}
+	void init();
+
+	virtual void loadData(uint8 *data);
+	void processEvents();
+	void processFrequency();
+	bool processControlEvent(uint8 cmd);
+
+	void keyOn();
+	void nextShape();
+
+	void protect();
+	void restore();
+	virtual void reset();
+
+	void fadeStep();
+
+protected:
+	void setOutputLevel(uint8 lvl);
+
+	bool control_f0_setPatch(uint8 para);
+	bool control_f1_setTotalLevel(uint8 para);
+	bool control_f4_setAlgorithm(uint8 para);
+	bool control_f9_loadCustomPatch(uint8 para);
+	bool control_fb_incOutLevel(uint8 para);
+	bool control_fc_decOutLevel(uint8 para);
+	bool control_ff_endOfTrack(uint8 para);
+
+	typedef bool (TownsPC98_MusicChannelSSG::*ControlEventFunc)(uint8 para);
+	const ControlEventFunc *controlEvents;
+};
+
+class TownsPC98_SfxChannel : public TownsPC98_MusicChannelSSG {
+public:
+	TownsPC98_SfxChannel(TownsPC98_AudioDriver *driver, uint8 regOffs,
+		uint8 flgs, uint8 num, uint8 key, uint8 prt, uint8 id) :
+		TownsPC98_MusicChannelSSG(driver, regOffs, flgs, num, key, prt, id) {}
+	~TownsPC98_SfxChannel() {}
+
+	void loadData(uint8 *data);
+	void reset();
+};
+
+class TownsPC98_MusicChannelPCM : public TownsPC98_MusicChannel {
+public:
+	TownsPC98_MusicChannelPCM(TownsPC98_AudioDriver *driver, uint8 regOffs,
+		uint8 flgs, uint8 num, uint8 key, uint8 prt, uint8 id);
+	~TownsPC98_MusicChannelPCM() {}
+	void init();
+
+	void loadData(uint8 *data);
+	void processEvents();
+	bool processControlEvent(uint8 cmd);
+
+private:
+	bool control_f1_prcStart(uint8 para);
+	bool control_ff_endOfTrack(uint8 para);
+
+	typedef bool (TownsPC98_MusicChannelPCM::*ControlEventFunc)(uint8 para);
+	const ControlEventFunc *controlEvents;
+};
+
+TownsPC98_MusicChannel::TownsPC98_MusicChannel(TownsPC98_AudioDriver *driver, uint8 regOffs, uint8 flgs, uint8 num,
+	uint8 key, uint8 prt, uint8 id) : _drv(driver), _regOffset(regOffs), _flags(flgs), _chanNum(num), _keyNum(key),
+	_part(prt), _idFlag(id), controlEvents(0) {
+
+	_ticksLeft = _algorithm = _instr = _totalLevel = _frqBlockMSB = _keyOffTime = 0;
+	_ssgStartLvl = _ssgTl = _ssgStep = _ssgTicksLeft = _ssgTargetLvl = _block = 0;
+	_vbrInitDelayHi = _vbrInitDelayLo = _vbrDuration = _vbrCurDelay = _vbrDurLeft = 0;
+	_frqLSB = 0;
+	_hold = false;
+	_dataPtr = 0;
+	_vbrModInitVal = _vbrModCurVal = 0;
+	_frequency = 0;
+}
+
+TownsPC98_MusicChannel::~TownsPC98_MusicChannel() {
+}
+
+void TownsPC98_MusicChannel::init() {
+	#define Control(x)	&TownsPC98_MusicChannel::control_##x
+	static const ControlEventFunc ctrlEvents[] = {
+		Control(f0_setPatch),
+		Control(f1_presetOutputLevel),
+		Control(f2_setKeyOffTime),
+		Control(f3_setFreqLSB),
+		Control(f4_setOutputLevel),
+		Control(f5_setTempo),
+		Control(f6_repeatSection),
+		Control(f7_setupVibrato),
+		Control(f8_toggleVibrato),
+		Control(dummy),
+		Control(fa_writeReg),
+		Control(fb_incOutLevel),
+		Control(fc_decOutLevel),
+		Control(fd_jump),
+		Control(dummy),
+		Control(ff_endOfTrack)
+	};
+	#undef Control
+
+	controlEvents = ctrlEvents;
+}
+
+void TownsPC98_MusicChannel::keyOff() {
+	// all operators off
+	uint8 value = _keyNum & 0x0f;
+	if (_part)
+		value |= 4;
+	uint8 regAddress = 0x28;
+	_drv->writeReg(0, regAddress, value);
+	_flags |= CHS_KEYOFF;
+}
+
+void TownsPC98_MusicChannel::keyOn() {
+	// all operators on
+	uint8 value = _keyNum | 0xf0;
+	if (_part)
+		value |= 4;
+	uint8 regAddress = 0x28;
+	_drv->writeReg(0, regAddress, value);
+}
+
+void TownsPC98_MusicChannel::loadData(uint8 *data) {
+	_flags = (_flags & ~CHS_EOT) | CHS_ALLOFF;
+	_ticksLeft = 1;
+	_dataPtr = data;
+	_totalLevel = 0x7F;
+
+	uint8 *tmp = _dataPtr;	
+	for (bool loop = true; loop; ) {
+		uint8 cmd = *tmp++;
+		if (cmd < 0xf0) {
+			tmp++;
+		} else if (cmd == 0xff) {
+			if (READ_LE_UINT16(tmp)) {
+				_drv->_looping |= _idFlag;
+				tmp += _drv->_opnFxCmdLen[cmd - 240];
+			} else
+				loop = false;
+		} else if (cmd == 0xf6) {
+			// reset repeat section countdown
+			tmp[0] = tmp[1];
+			tmp += 4;
+		} else {
+			tmp += _drv->_opnFxCmdLen[cmd - 240];
+		}
+	}
+}
+
+void TownsPC98_MusicChannel::processEvents() {
+	if (_flags & CHS_EOT)
+		return;
+
+	if (!_hold && _ticksLeft == _keyOffTime)
+		keyOff();
+
+	if (--_ticksLeft)
+		return;
+
+	if (!_hold)
+		keyOff();
+
+	uint8 cmd = 0;
+	bool loop = true;
+
+	while (loop) {
+		cmd = *_dataPtr++;
+		if (cmd < 0xf0)
+			loop = false;
+		else if (!processControlEvent(cmd))
+			return;
+	}
+
+	uint8 para = *_dataPtr++;
+
+	if (cmd == 0x80) {
+		keyOff();
+		_hold = false;
+	} else {
+		keyOn();
+
+		if (_hold == false || cmd != _frqBlockMSB)
+			_flags |= CHS_RECALCFREQ;
+
+		_hold = (para & 0x80) ? true : false;
+		_frqBlockMSB = cmd;
+	}
+
+	_ticksLeft = para & 0x7f;
+}
+
+void TownsPC98_MusicChannel::processFrequency() {
+	if (_flags & CHS_RECALCFREQ) {
+
+		_frequency = (((const uint16 *)_drv->_opnFreqTable)[_frqBlockMSB & 0x0f] + _frqLSB) | (((_frqBlockMSB & 0x70) >> 1) << 8);
+
+		_drv->writeReg(_part, _regOffset + 0xa4, (_frequency >> 8));
+		_drv->writeReg(_part, _regOffset + 0xa0, (_frequency & 0xff));
+
+		setupVibrato();
+	}
+
+	if (!(_flags & CHS_VBROFF)) {
+		if (!processVibrato())
+			return;
+
+		_drv->writeReg(_part, _regOffset + 0xa4, (_frequency >> 8));
+		_drv->writeReg(_part, _regOffset + 0xa0, (_frequency & 0xff));
+	}
+}
+
+void TownsPC98_MusicChannel::setupVibrato() {
+	_vbrCurDelay = _vbrInitDelayHi;
+	if (_flags & CHS_KEYOFF) {
+		_vbrModCurVal = _vbrModInitVal;
+		_vbrCurDelay += _vbrInitDelayLo;
+	}
+	_vbrDurLeft = (_vbrDuration >> 1);
+	_flags &= ~(CHS_KEYOFF | CHS_RECALCFREQ);
+}
+
+bool TownsPC98_MusicChannel::processVibrato() {
+	if (--_vbrCurDelay)
+		return false;
+
+	_vbrCurDelay = _vbrInitDelayHi;
+	_frequency += _vbrModCurVal;
+
+	if (!--_vbrDurLeft) {
+		_vbrDurLeft = _vbrDuration;
+		_vbrModCurVal = -_vbrModCurVal;
+	}
+
+	return true;
+}
+
+bool TownsPC98_MusicChannel::processControlEvent(uint8 cmd) {
+	uint8 para = *_dataPtr++;
+	return (this->*controlEvents[cmd & 0x0f])(para);
+}
+
+void TownsPC98_MusicChannel::setOutputLevel() {
+	uint8 outopr = _drv->_opnCarrier[_algorithm];
+	uint8 reg = 0x40 + _regOffset;
+
+	for (int i = 0; i < 4; i++) {
+		if (outopr & 1)
+			_drv->writeReg(_part, reg, _totalLevel);
+		outopr >>= 1;
+		reg += 4;
+	}
+}
+
+void TownsPC98_MusicChannel::fadeStep() {
+	_totalLevel += 3;
+	if (_totalLevel > 0x7f)
+		_totalLevel = 0x7f;
+	setOutputLevel();
+}
+
+void TownsPC98_MusicChannel::reset() {
+	_hold = false;
+	_keyOffTime = 0;
+	_ticksLeft = 1;
+
+	_flags = (_flags & ~CHS_EOT) | CHS_ALLOFF;
+
+	_totalLevel = 0;
+	_algorithm = 0;
+	_flags = CHS_EOT;
+	_algorithm = 0;
+
+	_block = 0;
+	_frequency = 0;
+	_frqBlockMSB = 0;
+	_frqLSB = 0;
+
+	_ssgTl = 0;
+	_ssgStartLvl = 0;
+	_ssgTargetLvl = 0;
+	_ssgStep = 0;
+	_ssgTicksLeft = 0;
+
+	_vbrInitDelayHi = 0;
+	_vbrInitDelayLo = 0;
+	_vbrModInitVal = 0;
+	_vbrDuration = 0;
+	_vbrCurDelay = 0;
+	_vbrModCurVal = 0;
+	_vbrDurLeft = 0;
+}
+
+bool TownsPC98_MusicChannel::control_f0_setPatch(uint8 para) {
+	_instr = para;
+	uint8 reg = _regOffset + 0x80;
+
+	for (int i = 0; i < 4; i++) {
+		// set release rate for each operator
+		_drv->writeReg(_part, reg, 0x0f);
+		reg += 4;
+	}
+
+	const uint8 *tptr = _drv->_patches + ((uint32)_instr << 5);
+	reg = _regOffset + 0x30;
+
+	// write registers 0x30 to 0x8f
+	for (int i = 0; i < 6; i++) {
+		_drv->writeReg(_part, reg, tptr[0]);
+		reg += 4;
+		_drv->writeReg(_part, reg, tptr[2]);
+		reg += 4;
+		_drv->writeReg(_part, reg, tptr[1]);
+		reg += 4;
+		_drv->writeReg(_part, reg, tptr[3]);
+		reg += 4;
+		tptr += 4;
+	}
+
+	reg = _regOffset + 0xB0;
+	_algorithm = tptr[0] & 7;
+	// set feedback and algorithm
+	_drv->writeReg(_part, reg, tptr[0]);
+
+	setOutputLevel();
+	return true;
+}
+
+bool TownsPC98_MusicChannel::control_f1_presetOutputLevel(uint8 para) {
+	if (_drv->_fading)
+		return true;
+
+	_totalLevel = _drv->_opnLvlPresets[para];
+	setOutputLevel();
+	return true;
+}
+
+bool TownsPC98_MusicChannel::control_f2_setKeyOffTime(uint8 para) {
+	_keyOffTime = para;
+	return true;
+}
+
+bool TownsPC98_MusicChannel::control_f3_setFreqLSB(uint8 para) {
+	_frqLSB = (int8) para;
+	return true;
+}
+
+bool TownsPC98_MusicChannel::control_f4_setOutputLevel(uint8 para) {
+	if (_drv->_fading)
+		return true;
+
+	_totalLevel = para;
+	setOutputLevel();
+	return true;
+}
+
+bool TownsPC98_MusicChannel::control_f5_setTempo(uint8 para) {
+	_drv->setMusicTempo(para);
+	return true;
+}
+
+bool TownsPC98_MusicChannel::control_f6_repeatSection(uint8 para) {
+	_dataPtr--;
+	_dataPtr[0]--;
+
+	if (*_dataPtr) {
+		// repeat section until counter has reached zero
+		_dataPtr = _drv->_trackPtr + READ_LE_UINT16(_dataPtr + 2);
+	} else {
+		// reset counter, advance to next section
+		_dataPtr[0] = _dataPtr[1];
+		_dataPtr += 4;
+	}
+	return true;
+}
+
+bool TownsPC98_MusicChannel::control_f7_setupVibrato(uint8 para) {
+	_vbrInitDelayHi = _dataPtr[0];
+	_vbrInitDelayLo = para;
+	_vbrModInitVal = (int16) READ_LE_UINT16(_dataPtr + 1);
+	_vbrDuration = _dataPtr[3];
+	_dataPtr += 4;
+	_flags = (_flags & ~CHS_VBROFF) | CHS_KEYOFF | CHS_RECALCFREQ;
+	return true;
+}
+
+bool TownsPC98_MusicChannel::control_f8_toggleVibrato(uint8 para) {
+	if (para == 0x10) {
+		if (*_dataPtr++) {
+			_flags = (_flags & ~CHS_VBROFF) | CHS_KEYOFF;
+		} else {
+			_flags |= CHS_VBROFF;
+		}
+	} else {
+		/* NOT IMPLEMENTED
+		uint8 skipChannels = para / 36;
+		uint8 entry = para % 36;
+		TownsPC98_AudioDriver::TownsPC98_MusicChannel *t = &chan[skipChannels];
+
+		t->unnamedEntries[entry] = *_dataPtr++;*/
+	}
+	return true;
+}
+
+bool TownsPC98_MusicChannel::control_fa_writeReg(uint8 para) {
+	_drv->writeReg(_part, para, *_dataPtr++);
+	return true;
+}
+
+bool TownsPC98_MusicChannel::control_fb_incOutLevel(uint8 para) {
+	_dataPtr--;
+	if (_drv->_fading)
+		return true;
+
+	uint8 val = (_totalLevel + 3);
+	if (val > 0x7f)
+		val = 0x7f;
+
+	_totalLevel = val;
+	setOutputLevel();
+	return true;
+}
+
+bool TownsPC98_MusicChannel::control_fc_decOutLevel(uint8 para) {
+	_dataPtr--;
+	if (_drv->_fading)
+		return true;
+
+	int8 val = (int8) (_totalLevel - 3);
+	if (val < 0)
+		val = 0;
+
+	_totalLevel = (uint8) val;
+	setOutputLevel();
+	return true;
+}
+
+bool TownsPC98_MusicChannel::control_fd_jump(uint8 para) {
+	uint8 *tmp = _drv->_trackPtr + READ_LE_UINT16(_dataPtr - 1);
+	_dataPtr = (tmp[1] == 1) ? tmp : (_dataPtr + 1);
+	return true;
+}
+
+bool TownsPC98_MusicChannel::control_dummy(uint8 para) {
+	_dataPtr--;
+	return true;
+}
+
+bool TownsPC98_MusicChannel::control_ff_endOfTrack(uint8 para) {
+	uint16 val = READ_LE_UINT16(--_dataPtr);
+	if (val) {
+		// loop
+		_dataPtr = _drv->_trackPtr + val;
+		return true;
+	} else {
+		// quit parsing for active channel
+		--_dataPtr;
+		_flags |= CHS_EOT;
+		_drv->_finishedChannelsFlag |= _idFlag;
+		keyOff();
+		return false;
+	}
+}
+
+TownsPC98_MusicChannelSSG::TownsPC98_MusicChannelSSG(TownsPC98_AudioDriver *driver, uint8 regOffs,
+		uint8 flgs, uint8 num, uint8 key, uint8 prt, uint8 id) :
+		TownsPC98_MusicChannel(driver, regOffs, flgs, num, key, prt, id), controlEvents(0) {
+}
+
+void TownsPC98_MusicChannelSSG::init() {
+	_algorithm = 0x80;
+
+	#define Control(x)	&TownsPC98_MusicChannelSSG::control_##x
+	static const ControlEventFunc ctrlEventsSSG[] = {
+		Control(f0_setPatch),
+		Control(f1_setTotalLevel),
+		Control(f2_setKeyOffTime),
+		Control(f3_setFreqLSB),
+		Control(f4_setAlgorithm),
+		Control(f5_setTempo),
+		Control(f6_repeatSection),
+		Control(f7_setupVibrato),
+		Control(f8_toggleVibrato),
+		Control(f9_loadCustomPatch),
+		Control(fa_writeReg),
+		Control(fb_incOutLevel),
+		Control(fc_decOutLevel),
+		Control(fd_jump),
+		Control(dummy),
+		Control(ff_endOfTrack)
+	};
+	#undef Control
+
+	controlEvents = ctrlEventsSSG;
+}
+
+void TownsPC98_MusicChannelSSG::processEvents() {
+	if (_flags & CHS_EOT)
+		return;
+
+	_drv->toggleRegProtection(_flags & CHS_PROTECT ? true : false);
+
+	if (!_hold && _ticksLeft == _keyOffTime)
+		nextShape();
+
+	if (!--_ticksLeft) {
+
+		uint8 cmd = 0;
+		bool loop = true;
+
+		while (loop) {
+			cmd = *_dataPtr++;
+			if (cmd < 0xf0)
+				loop = false;
+			else if (!processControlEvent(cmd))
+				return;
+		}
+
+		uint8 para = *_dataPtr++;
+
+		if (cmd == 0x80) {
+			nextShape();
+			_hold = false;
+		} else {
+			if (!_hold) {
+				_instr &= 0xf0;
+				_ssgStep = _drv->_ssgPatches[_instr];
+				_ssgTicksLeft = _drv->_ssgPatches[_instr + 1] & 0x7f;
+				_ssgTargetLvl = _drv->_ssgPatches[_instr + 2];
+				_ssgStartLvl = _drv->_ssgPatches[_instr + 3];
+				_flags = (_flags & ~CHS_SSGOFF) | CHS_KEYOFF;
+			}
+
+			keyOn();
+
+			if (_hold == false || cmd != _frqBlockMSB)
+				_flags |= CHS_RECALCFREQ;
+
+			_hold = (para & 0x80) ? true : false;
+			_frqBlockMSB = cmd;
+		}
+
+		_ticksLeft = para & 0x7f;
+	}
+
+	if (!(_flags & CHS_SSGOFF)) {
+		if (--_ssgTicksLeft) {
+			if (!_drv->_fading)
+				setOutputLevel(_ssgStartLvl);
+			return;
+		}
+
+		_ssgTicksLeft = _drv->_ssgPatches[_instr + 1] & 0x7f;
+
+		if (_drv->_ssgPatches[_instr + 1] & 0x80) {
+			uint8 t = _ssgStartLvl - _ssgStep;
+
+			if (_ssgStep <= _ssgStartLvl && _ssgTargetLvl < t) {
+				if (!_drv->_fading)
+					setOutputLevel(t);
+				return;
+			}
+		} else {
+			int t = _ssgStartLvl + _ssgStep;
+			uint8 p = (uint8) (t & 0xff);
+
+			if (t < 256 && _ssgTargetLvl > p) {
+				if (!_drv->_fading)
+					setOutputLevel(p);
+				return;
+			}
+		}
+
+		setOutputLevel(_ssgTargetLvl);
+		if (_ssgStartLvl && !(_instr & 8)){
+			_instr += 4;
+			_ssgStep = _drv->_ssgPatches[_instr];
+			_ssgTicksLeft = _drv->_ssgPatches[_instr + 1] & 0x7f;
+			_ssgTargetLvl = _drv->_ssgPatches[_instr + 2];
+		} else {
+			_flags |= CHS_SSGOFF;
+			setOutputLevel(0);
+		}
+	}
+}
+
+void TownsPC98_MusicChannelSSG::processFrequency() {
+	if (_algorithm & 0x40)
+		return;
+
+	if (_flags & CHS_RECALCFREQ) {
+		_block = _frqBlockMSB >> 4;
+		_frequency = ((const uint16 *)_drv->_opnFreqTableSSG)[_frqBlockMSB & 0x0f] + _frqLSB;
+
+		uint16 f = _frequency >> _block;
+		_drv->writeReg(_part, _regOffset << 1, f & 0xff);
+		_drv->writeReg(_part, (_regOffset << 1) + 1, f >> 8);
+
+		setupVibrato();
+	}
+
+	if (!(_flags & (CHS_EOT | CHS_VBROFF | CHS_SSGOFF))) {
+		if (!processVibrato())
+			return;
+
+		uint16 f = _frequency >> _block;
+		_drv->writeReg(_part, _regOffset << 1, f & 0xff);
+		_drv->writeReg(_part, (_regOffset << 1) + 1, f >> 8);
+	}
+}
+
+bool TownsPC98_MusicChannelSSG::processControlEvent(uint8 cmd) {
+	uint8 para = *_dataPtr++;
+	return (this->*controlEvents[cmd & 0x0f])(para);
+}
+
+void TownsPC98_MusicChannelSSG::nextShape() {
+	_instr = (_instr & 0xf0) + 0x0c;
+	_ssgStep = _drv->_ssgPatches[_instr];
+	_ssgTicksLeft = _drv->_ssgPatches[_instr + 1] & 0x7f;
+	_ssgTargetLvl = _drv->_ssgPatches[_instr + 2];
+}
+
+void TownsPC98_MusicChannelSSG::keyOn() {
+	uint8 c = 0x7b;
+	uint8 t = (_algorithm & 0xC0) << 1;
+	if (_algorithm & 0x80)
+		t |= 4;
+
+	c = (c << (_regOffset + 1)) | (c >> (7 - _regOffset));
+	t = (t << (_regOffset + 1)) | (t >> (7 - _regOffset));
+
+	if (!(_algorithm & 0x80))
+		_drv->writeReg(_part, 6, _algorithm & 0x7f);
+
+	uint8 e = (_drv->readSSGStatus() & c) | t;
+	_drv->writeReg(_part, 7, e);
+}
+
+void TownsPC98_MusicChannelSSG::protect() {
+	_flags |= CHS_PROTECT;
+}
+
+void TownsPC98_MusicChannelSSG::restore() {
+	_flags &= ~CHS_PROTECT;
+	keyOn();
+	_drv->writeReg(_part, 8 + _regOffset, _ssgTl);
+	uint16 f = _frequency >> _block;
+	_drv->writeReg(_part, _regOffset << 1, f & 0xff);
+	_drv->writeReg(_part, (_regOffset << 1) + 1, f >> 8);
+}
+
+void TownsPC98_MusicChannelSSG::loadData(uint8 *data) {
+	_drv->toggleRegProtection(_flags & CHS_PROTECT ? true : false);
+	TownsPC98_MusicChannel::loadData(data);
+	setOutputLevel(0);
+	_algorithm = 0x80;
+}
+
+void TownsPC98_MusicChannelSSG::setOutputLevel(uint8 lvl) {
+	_ssgStartLvl = lvl;
+	uint16 newTl = (((uint16)_totalLevel + 1) * (uint16)lvl) >> 8;
+	if (newTl == _ssgTl)
+		return;
+	_ssgTl = newTl;
+	_drv->writeReg(_part, 8 + _regOffset, _ssgTl);
+}
+
+void TownsPC98_MusicChannelSSG::reset() {
+	TownsPC98_MusicChannel::reset();
+
+	// Unlike the original we restore the default patch data. This fixes a bug
+	// where certain sound effects would bring each other out of tune (e.g. the
+	// dragon's fire in Darm's house in Kyra 1 would sound different each time
+	// you triggered another sfx by dropping an item etc.)
+	uint8 i = (10 + _regOffset) << 4;
+	const uint8 *src = &_drv->_drvTables[156];
+	_drv->_ssgPatches[i] = src[i];
+	_drv->_ssgPatches[i + 3] = src[i + 3];
+	_drv->_ssgPatches[i + 4] = src[i + 4];
+	_drv->_ssgPatches[i + 6] = src[i + 6];
+	_drv->_ssgPatches[i + 8] = src[i + 8];
+	_drv->_ssgPatches[i + 12] = src[i + 12];
+}
+
+void TownsPC98_MusicChannelSSG::fadeStep() {
+	_totalLevel--;
+	if ((int8)_totalLevel < 0)
+		_totalLevel = 0;
+	setOutputLevel(_ssgStartLvl);
+}
+
+bool TownsPC98_MusicChannelSSG::control_f0_setPatch(uint8 para) {
+	_instr = para << 4;
+	para = (para >> 3) & 0x1e;
+	if (para)
+		return control_f4_setAlgorithm(para | 0x40);
+	return true;
+}
+
+bool TownsPC98_MusicChannelSSG::control_f1_setTotalLevel(uint8 para) {
+	if (!_drv->_fading)
+		_totalLevel = para;
+	return true;
+}
+
+bool TownsPC98_MusicChannelSSG::control_f4_setAlgorithm(uint8 para) {
+	_algorithm = para;
+	return true;
+}
+
+bool TownsPC98_MusicChannelSSG::control_f9_loadCustomPatch(uint8 para) {
+	_instr = (_drv->_sfxOffs + 10 + _regOffset) << 4;
+	_drv->_ssgPatches[_instr] = *_dataPtr++;
+	_drv->_ssgPatches[_instr + 3] = para;
+	_drv->_ssgPatches[_instr + 4] = *_dataPtr++;
+	_drv->_ssgPatches[_instr + 6] = *_dataPtr++;
+	_drv->_ssgPatches[_instr + 8] = *_dataPtr++;
+	_drv->_ssgPatches[_instr + 12] = *_dataPtr++;
+	return true;
+}
+
+bool TownsPC98_MusicChannelSSG::control_fb_incOutLevel(uint8 para) {
+	_dataPtr--;
+	if (_drv->_fading)
+		return true;
+
+	_totalLevel--;
+	if ((int8)_totalLevel < 0)
+		_totalLevel = 0;
+
+	return true;
+}
+
+bool TownsPC98_MusicChannelSSG::control_fc_decOutLevel(uint8 para) {
+	_dataPtr--;
+	if (_drv->_fading)
+		return true;
+
+	if (_totalLevel + 1 < 0x10)
+		_totalLevel++;
+
+	return true;
+}
+
+bool TownsPC98_MusicChannelSSG::control_ff_endOfTrack(uint8 para) {
+	if (!_drv->_sfxOffs) {
+		uint16 val = READ_LE_UINT16(--_dataPtr);
+		if (val) {
+			// loop
+			_dataPtr = _drv->_trackPtr + val;
+			return true;
+		} else {
+			// stop parsing
+			if (!_drv->_fading)
+				setOutputLevel(0);
+			--_dataPtr;
+			_flags |= CHS_EOT;
+			_drv->_finishedSSGFlag |= _idFlag;
+		}
+	} else {
+		// end of sfx track - restore ssg music channel
+		_flags |= CHS_EOT;
+		_drv->_finishedSfxFlag |= _idFlag;
+		_drv->_ssgChannels[_chanNum]->restore();
+	}
+
+	return false;
+}
+
+void TownsPC98_SfxChannel::loadData(uint8 *data) {
+	_flags = CHS_ALLOFF;
+	_ticksLeft = 1;
+	_dataPtr = data;
+	_ssgTl = 0xff;
+	_algorithm = 0x80;
+
+	uint8 *tmp = _dataPtr;	
+	for (bool loop = true; loop; ) {
+		uint8 cmd = *tmp++;
+		if (cmd < 0xf0) {
+			tmp++;
+		} else if (cmd == 0xff) {
+			loop = false;
+		} else if (cmd == 0xf6) {
+			// reset repeat section countdown
+			tmp[0] = tmp[1];
+			tmp += 4;
+		} else {
+			tmp += _drv->_opnFxCmdLen[cmd - 240];
+		}
+	}
+}
+
+void TownsPC98_SfxChannel::reset() {
+	TownsPC98_MusicChannel::reset();
+
+	// Unlike the original we restore the default patch data. This fixes a bug
+	// where certain sound effects would bring each other out of tune (e.g. the
+	// dragon's fire in Darm's house in Kyra 1 would sound different each time
+	// you triggered another sfx by dropping an item etc.)
+	uint8 i = (13 + _regOffset) << 4;
+	const uint8 *src = &_drv->_drvTables[156];
+	_drv->_ssgPatches[i] = src[i];
+	_drv->_ssgPatches[i + 3] = src[i + 3];
+	_drv->_ssgPatches[i + 4] = src[i + 4];
+	_drv->_ssgPatches[i + 6] = src[i + 6];
+	_drv->_ssgPatches[i + 8] = src[i + 8];
+	_drv->_ssgPatches[i + 12] = src[i + 12];
+}
+
+TownsPC98_MusicChannelPCM::TownsPC98_MusicChannelPCM(TownsPC98_AudioDriver *driver, uint8 regOffs,
+		uint8 flgs, uint8 num, uint8 key, uint8 prt, uint8 id) :
+		TownsPC98_MusicChannel(driver, regOffs, flgs, num, key, prt, id), controlEvents(0) {
+}
+
+void TownsPC98_MusicChannelPCM::init() {
+	_algorithm = 0x80;
+
+	#define Control(x)	&TownsPC98_MusicChannelPCM::control_##x
+	static const ControlEventFunc ctrlEventsPCM[] = {
+		Control(dummy),
+		Control(f1_prcStart),
+		Control(dummy),
+		Control(dummy),
+		Control(dummy),
+		Control(dummy),
+		Control(f6_repeatSection),
+		Control(dummy),
+		Control(dummy),
+		Control(dummy),
+		Control(fa_writeReg),
+		Control(dummy),
+		Control(dummy),
+		Control(dummy),
+		Control(dummy),
+		Control(ff_endOfTrack)
+	};
+	#undef Control
+
+	controlEvents = ctrlEventsPCM;
+}
+
+void TownsPC98_MusicChannelPCM::loadData(uint8 *data) {
+	_flags = (_flags & ~CHS_EOT) | CHS_ALLOFF;
+	_ticksLeft = 1;
+	_dataPtr = data;
+	_totalLevel = 0x7F;
+}
+
+void TownsPC98_MusicChannelPCM::processEvents()  {
+	if (_flags & CHS_EOT)
+		return;
+
+	if (--_ticksLeft)
+		return;
+
+	uint8 cmd = 0;
+	bool loop = true;
+
+	while (loop) {
+		cmd = *_dataPtr++;
+		if (cmd == 0x80) {
+			loop = false;
+		} else if (cmd < 0xf0) {
+			_drv->writeReg(_part, 0x10, cmd);
+		} else if (!processControlEvent(cmd)) {
+			return;
+		}
+	}
+
+	_ticksLeft = *_dataPtr++;
+}
+
+bool TownsPC98_MusicChannelPCM::processControlEvent(uint8 cmd) {
+	uint8 para = *_dataPtr++;
+	return (this->*controlEvents[cmd & 0x0f])(para);
+}
+
+bool TownsPC98_MusicChannelPCM::control_f1_prcStart(uint8 para) {
+	_totalLevel = para;
+	_drv->writeReg(_part, 0x11, para);
+	return true;
+}
+
+bool TownsPC98_MusicChannelPCM::control_ff_endOfTrack(uint8 para) {
+	uint16 val = READ_LE_UINT16(--_dataPtr);
+	if (val) {
+		// loop
+		_dataPtr = _drv->_trackPtr + val;
+		return true;
+	} else {
+		// quit parsing for active channel
+		--_dataPtr;
+		_flags |= CHS_EOT;
+		_drv->_finishedRhythmFlag |= _idFlag;
+		return false;
+	}
+}
+
+TownsPC98_AudioDriver::TownsPC98_AudioDriver(Audio::Mixer *mixer, EmuType type) : TownsPC98_FmSynth(mixer, type),
+	_channels(0), _ssgChannels(0), _sfxChannels(0), _rhythmChannel(0),
+	_trackPtr(0), _sfxData(0), _sfxOffs(0), _ssgPatches(0),
+	_patches(0), _sfxBuffer(0), _musicBuffer(0),
+
+	_opnCarrier(_drvTables + 76), _opnFreqTable(_drvTables + 108), _opnFreqTableSSG(_drvTables + 132),
+	_opnFxCmdLen(_drvTables + 36), _opnLvlPresets(_drvTables + (type == kTypeTowns ? 52 : 84)),
+
+	_updateChannelsFlag(type == kType26 ? 0x07 : 0x3F), _finishedChannelsFlag(0),
+	_updateSSGFlag(type == kTypeTowns ? 0x00 : 0x07), _finishedSSGFlag(0),
+	_updateRhythmFlag(type == kType86 ? 0x01 : 0x00), _finishedRhythmFlag(0),
+	_updateSfxFlag(0), _finishedSfxFlag(0),
+
+	_musicTickCounter(0),
+
+	_musicVolume(255), _sfxVolume(255),
+
+	_musicPlaying(false), _sfxPlaying(false), _fading(false), _looping(0), _ready(false) {
+
+	_sfxOffsets[0] = _sfxOffsets[1] = 0;
+}
+
+TownsPC98_AudioDriver::~TownsPC98_AudioDriver() {
+	reset();
+
+	if (_channels) {
+		for (int i = 0; i < _numChan; i++)
+			delete _channels[i];
+		delete[] _channels;
+	}
+
+	if (_ssgChannels) {
+		for (int i = 0; i < _numSSG; i++)
+			delete _ssgChannels[i];
+		delete[] _ssgChannels;
+	}
+
+	if (_sfxChannels) {
+		for (int i = 0; i < 2; i++)
+			delete _sfxChannels[i];
+		delete[] _sfxChannels;
+	}
+
+	delete _rhythmChannel;
+
+	delete[] _ssgPatches;
+}
+
+bool TownsPC98_AudioDriver::init() {
+	if (_ready) {
+		reset();
+		return true;
+	}
+
+	TownsPC98_FmSynth::init();
+
+	setVolumeChannelMasks(-1, 0);
+
+	_channels = new TownsPC98_MusicChannel *[_numChan];
+	for (int i = 0; i < _numChan; i++) {
+		int ii = i * 6;
+		_channels[i] = new TownsPC98_MusicChannel(this, _drvTables[ii], _drvTables[ii + 1],
+			_drvTables[ii + 2], _drvTables[ii + 3], _drvTables[ii + 4], _drvTables[ii + 5]);
+		_channels[i]->init();
+	}
+
+	if (_numSSG) {
+		_ssgPatches = new uint8[256];
+		memcpy(_ssgPatches, _drvTables + 156, 256);
+
+		_ssgChannels = new TownsPC98_MusicChannelSSG *[_numSSG];
+		for (int i = 0; i < _numSSG; i++) {
+			int ii = i * 6;
+			_ssgChannels[i] = new TownsPC98_MusicChannelSSG(this, _drvTables[ii], _drvTables[ii + 1],
+				_drvTables[ii + 2], _drvTables[ii + 3], _drvTables[ii + 4], _drvTables[ii + 5]);
+			_ssgChannels[i]->init();
+		}
+
+		_sfxChannels = new TownsPC98_SfxChannel *[2];
+		for (int i = 0; i < 2; i++) {
+			int ii = (i + 1) * 6;
+			_sfxChannels[i] = new TownsPC98_SfxChannel(this, _drvTables[ii], _drvTables[ii + 1],
+				_drvTables[ii + 2], _drvTables[ii + 3], _drvTables[ii + 4], _drvTables[ii + 5]);
+			_sfxChannels[i]->init();
+		}
+	}
+
+	if (_hasPercussion) {
+		_rhythmChannel = new TownsPC98_MusicChannelPCM(this, 0, 0, 0, 0, 0, 1);
+		_rhythmChannel->init();
+	}
+
+	setMusicTempo(84);
+	setSfxTempo(654);
+
+	_ready = true;
+
+	return true;
+}
+
+void TownsPC98_AudioDriver::loadMusicData(uint8 *data, bool loadPaused) {
+	if (!_ready) {
+		warning("TownsPC98_AudioDriver: Driver must be initialized before loading data");
+		return;
+	}
+
+	if (!data) {
+		warning("TownsPC98_AudioDriver: Invalid music file data");
+		return;
+	}
+
+	reset();
+
+	Common::StackLock lock(_mutex);
+	uint8 *src_a = _trackPtr = _musicBuffer = data;
+
+	for (uint8 i = 0; i < 3; i++) {
+		_channels[i]->loadData(data + READ_LE_UINT16(src_a));
+		src_a += 2;
+	}
+
+	for (int i = 0; i < _numSSG; i++) {
+		_ssgChannels[i]->loadData(data + READ_LE_UINT16(src_a));
+		src_a += 2;
+	}
+
+	for (uint8 i = 3; i < _numChan; i++) {
+		_channels[i]->loadData(data + READ_LE_UINT16(src_a));
+		src_a += 2;
+	}
+
+	if (_hasPercussion) {
+		_rhythmChannel->loadData(data + READ_LE_UINT16(src_a));
+		src_a += 2;
+	}
+
+	toggleRegProtection(false);
+
+	_patches = src_a + 4;
+	_finishedChannelsFlag = _finishedSSGFlag = _finishedRhythmFlag = 0;
+
+	_musicPlaying = (loadPaused ? false : true);
+}
+
+void TownsPC98_AudioDriver::loadSoundEffectData(uint8 *data, uint8 trackNum) {
+	if (!_ready) {
+		warning("TownsPC98_AudioDriver: Driver must be initialized before loading data");
+		return;
+	}
+
+	if (!_sfxChannels) {
+		warning("TownsPC98_AudioDriver: Sound effects not supported by this configuration");
+		return;
+	}
+
+	if (!data) {
+		warning("TownsPC98_AudioDriver: Invalid sound effects file data");
+		return;
+	}
+
+	Common::StackLock lock(_mutex);
+	_sfxData = _sfxBuffer = data;
+	_sfxOffsets[0] = READ_LE_UINT16(&_sfxData[(trackNum << 2)]);
+	_sfxOffsets[1] = READ_LE_UINT16(&_sfxData[(trackNum << 2) + 2]);
+	_sfxPlaying = true;
+	_finishedSfxFlag = 0;
+}
+
+void TownsPC98_AudioDriver::reset() {
+	Common::StackLock lock(_mutex);
+
+	_musicPlaying = false;
+	_sfxPlaying = false;
+	_fading = false;
+	_looping = 0;
+	_musicTickCounter = 0;
+	_sfxData = 0;
+
+	TownsPC98_FmSynth::reset();
+
+	for (int i = 0; i < _numChan; i++)
+		_channels[i]->reset();
+	for (int i = 0; i < _numSSG; i++)
+		_ssgChannels[i]->reset();
+
+	if (_numSSG) {
+		for (int i = 0; i < 2; i++)
+			_sfxChannels[i]->reset();
+
+		memcpy(_ssgPatches, _drvTables + 156, 256);
+	}
+
+	if (_rhythmChannel)
+		_rhythmChannel->reset();
+}
+
+void TownsPC98_AudioDriver::fadeStep() {
+	if (!_musicPlaying)
+		return;
+
+	Common::StackLock lock(_mutex);
+	for (int j = 0; j < _numChan; j++) {
+		if (_updateChannelsFlag & _channels[j]->_idFlag)
+			_channels[j]->fadeStep();
+	}
+
+	for (int j = 0; j < _numSSG; j++) {
+		if (_updateSSGFlag & _ssgChannels[j]->_idFlag)
+			_ssgChannels[j]->fadeStep();
+	}
+
+	if (!_fading) {
+		_fading = 19;
+		if (_hasPercussion) {
+			if (_updateRhythmFlag & _rhythmChannel->_idFlag)
+				_rhythmChannel->reset();
+		}
+	} else {
+		if (!--_fading)
+			reset();
+	}
+}
+
+void TownsPC98_AudioDriver::timerCallbackB() {
+	_sfxOffs = 0;
+
+	if (_musicPlaying) {
+		_musicTickCounter++;
+
+		for (int i = 0; i < _numChan; i++) {
+			if (_updateChannelsFlag & _channels[i]->_idFlag) {
+				_channels[i]->processEvents();
+				_channels[i]->processFrequency();
+			}
+		}
+
+		for (int i = 0; i < _numSSG; i++) {
+			if (_updateSSGFlag & _ssgChannels[i]->_idFlag) {
+				_ssgChannels[i]->processEvents();
+				_ssgChannels[i]->processFrequency();
+			}
+		}
+
+		if (_hasPercussion)
+			if (_updateRhythmFlag & _rhythmChannel->_idFlag)
+				_rhythmChannel->processEvents();
+	}
+
+	toggleRegProtection(false);
+
+	if (_finishedChannelsFlag == _updateChannelsFlag && _finishedSSGFlag == _updateSSGFlag && _finishedRhythmFlag == _updateRhythmFlag)
+		_musicPlaying = false;
+}
+
+void TownsPC98_AudioDriver::timerCallbackA() {
+	if (_sfxChannels && _sfxPlaying) {
+		if (_sfxData)
+			startSoundEffect();
+
+		_sfxOffs = 3;
+		_trackPtr = _sfxBuffer;
+
+		for (int i = 0; i < 2; i++) {
+			if (_updateSfxFlag & _sfxChannels[i]->_idFlag) {
+				_sfxChannels[i]->processEvents();
+				_sfxChannels[i]->processFrequency();
+			}
+		}
+
+		_trackPtr = _musicBuffer;
+	}
+
+	if (_updateSfxFlag && _finishedSfxFlag == _updateSfxFlag) {
+		_sfxPlaying = false;
+		_updateSfxFlag = 0;
+		setVolumeChannelMasks(-1, 0);
+	}
+}
+
+void TownsPC98_AudioDriver::setMusicTempo(uint8 tempo) {
+	writeReg(0, 0x26, tempo);
+	writeReg(0, 0x27, 0x33);
+}
+
+void TownsPC98_AudioDriver::setSfxTempo(uint16 tempo) {
+	writeReg(0, 0x24, tempo & 0xff);
+	writeReg(0, 0x25, tempo >> 8);
+	writeReg(0, 0x27, 0x33);
+}
+
+void TownsPC98_AudioDriver::startSoundEffect() {
+	int volFlags = 0;
+	
+	for (int i = 0; i < 2; i++) {
+		if (_sfxOffsets[i]) {
+			_ssgChannels[i + 1]->protect();
+			_sfxChannels[i]->reset();
+			_sfxChannels[i]->loadData(_sfxData + _sfxOffsets[i]);
+			_updateSfxFlag |= _sfxChannels[i]->_idFlag;
+			volFlags |= (_sfxChannels[i]->_idFlag << _numChan);
+		} else {
+			_ssgChannels[i + 1]->restore();
+			_updateSfxFlag &= ~_sfxChannels[i]->_idFlag;
+		}
+	}
+	
+	setVolumeChannelMasks(~volFlags, volFlags);
+	_sfxData = 0;
+}
+
+const uint8 TownsPC98_AudioDriver::_drvTables[] = {
+	//	channel presets
+	0x00, 0x80, 0x00, 0x00, 0x00, 0x01,
+	0x01, 0x80, 0x01, 0x01, 0x00, 0x02,
+	0x02, 0x80, 0x02, 0x02, 0x00, 0x04,
+	0x00, 0x80, 0x03, 0x04, 0x01, 0x08,
+	0x01, 0x80, 0x04, 0x05, 0x01, 0x10,
+	0x02, 0x80, 0x05, 0x06, 0x01, 0x20,
+
+	//	control event size
+	0x01, 0x01, 0x01, 0x01,	0x01, 0x01, 0x04, 0x05,
+	0x02, 0x06, 0x02, 0x00, 0x00, 0x02, 0x00, 0x02,
+
+	//	fmt level presets
+	0x54, 0x50,	0x4C, 0x48,	0x44, 0x40, 0x3C, 0x38,
+	0x34, 0x30, 0x2C, 0x28, 0x24, 0x20, 0x1C, 0x18,
+	0x14, 0x10, 0x0C, 0x08,	0x04, 0x90, 0x90, 0x90,
+
+	//	carriers
+	0x08, 0x08, 0x08, 0x08,	0x0C, 0x0E, 0x0E, 0x0F,
+
+	//	pc98 level presets
+	0x40, 0x3B, 0x38, 0x34, 0x30, 0x2A, 0x28, 0x25,
+	0x22, 0x20, 0x1D, 0x1A, 0x18, 0x15, 0x12, 0x10,
+	0x0D, 0x0A, 0x08, 0x05, 0x02, 0x90, 0x90, 0x90,
+
+	//	frequencies
+	0x6A, 0x02, 0x8F, 0x02, 0xB6, 0x02, 0xDF, 0x02,
+	0x0B, 0x03, 0x39, 0x03, 0x6A, 0x03, 0x9E, 0x03,
+	0xD5, 0x03, 0x10, 0x04, 0x4E, 0x04, 0x8F, 0x04,
+
+	//	ssg frequencies
+	0xE8, 0x0E, 0x12, 0x0E, 0x48, 0x0D, 0x89, 0x0C,
+	0xD5, 0x0B, 0x2B, 0x0B, 0x8A, 0x0A, 0xF3, 0x09,
+	0x64, 0x09, 0xDD, 0x08, 0x5E, 0x08, 0xE6, 0x07,
+
+	// ssg patch data
+	0x00, 0x00, 0xFF, 0xFF, 0x00, 0x81, 0x00, 0x00,
+	0x00, 0x81, 0x00, 0x00, 0xFF, 0x81, 0x00, 0x00,
+	0x00, 0x01, 0xFF, 0xFF, 0x37, 0x81, 0xC8, 0x00,
+	0x00, 0x81, 0x00, 0x00, 0x0A, 0x81, 0x00, 0x00,
+	0x00, 0x01, 0xFF, 0xFF, 0x37, 0x81, 0xC8, 0x00,
+	0x01, 0x81, 0x00, 0x00, 0x0A, 0x81, 0x00, 0x00,
+	0x00, 0x01, 0xFF, 0xFF, 0xFF, 0x81, 0xBE, 0x00,
+	0x00, 0x81, 0x00, 0x00, 0x0A, 0x81, 0x00, 0x00,
+	0x00, 0x01, 0xFF, 0xFF, 0xFF, 0x81, 0xBE, 0x00,
+	0x01, 0x81, 0x00, 0x00, 0x0A, 0x81, 0x00, 0x00,
+	0x00, 0x01, 0xFF, 0xFF, 0xFF, 0x81, 0xBE, 0x00,
+	0x04, 0x81, 0x00, 0x00, 0x0A, 0x81, 0x00, 0x00,
+	0x00, 0x01, 0xFF, 0xFF, 0xFF, 0x81, 0xBE, 0x00,
+	0x0A, 0x81, 0x00, 0x00, 0x0A, 0x81, 0x00, 0x00,
+	0x00, 0x01, 0xFF, 0xFF, 0xFF, 0x81, 0x01, 0x00,
+	0xFF, 0x81, 0x00, 0x00, 0xFF, 0x81, 0x00, 0x00,
+	0xFF, 0x01, 0xFF, 0xFF, 0xFF, 0x81, 0xFF, 0x00,
+	0x01, 0x81, 0x00, 0x00, 0x0A, 0x81, 0x00, 0x00,
+	0x64, 0x01, 0xFF, 0x64, 0xFF, 0x81, 0xFF, 0x00,
+	0x01, 0x81, 0x00, 0x00, 0x0A, 0x81, 0x00, 0x00,
+
+	0x02, 0x01, 0xFF, 0x28, 0xFF, 0x81, 0xF0, 0x00,
+	0x00, 0x81, 0x00, 0x00, 0x0A, 0x81, 0x00, 0x00,
+	0x00, 0x01, 0xFF, 0xFF, 0xFF, 0x81, 0xC8, 0x00,
+	0x01, 0x81, 0x00, 0x00, 0x28, 0x81, 0x00, 0x00,
+	0x00, 0x01, 0xFF, 0x78, 0x5F, 0x81, 0xA0, 0x00,
+	0x05, 0x81, 0x00, 0x00, 0x28, 0x81, 0x00, 0x00,
+	0x00, 0x01, 0xFF, 0xFF, 0x00, 0x81, 0x00, 0x00,
+	0x00, 0x81, 0x00, 0x00, 0xFF, 0x81, 0x00, 0x00,
+	0x00, 0x01, 0xFF, 0xFF, 0x00, 0x81, 0x00, 0x00,
+	0x00, 0x81, 0x00, 0x00, 0xFF, 0x81, 0x00, 0x00,
+	0x00, 0x01, 0xFF, 0xFF, 0x00, 0x81, 0x00, 0x00,
+	0x00, 0x81, 0x00, 0x00, 0xFF, 0x81, 0x00, 0x00
+};
+
+#undef EUPHONY_FADEOUT_TICKS
+
diff --git a/sound/softsynth/fmtowns_pc98/towns_pc98_driver.h b/sound/softsynth/fmtowns_pc98/towns_pc98_driver.h
new file mode 100644
index 0000000000..f7d09df09d
--- /dev/null
+++ b/sound/softsynth/fmtowns_pc98/towns_pc98_driver.h
@@ -0,0 +1,110 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef TOWNS_PC98_AUDIODRIVER_H
+#define TOWNS_PC98_AUDIODRIVER_H
+
+#include "sound/softsynth/fmtowns_pc98/towns_pc98_fmsynth.h"
+
+class TownsPC98_AudioDriver : public TownsPC98_FmSynth {
+friend class TownsPC98_MusicChannel;
+friend class TownsPC98_MusicChannelSSG;
+friend class TownsPC98_SfxChannel;
+friend class TownsPC98_MusicChannelPCM;
+public:
+	TownsPC98_AudioDriver(Audio::Mixer *mixer, EmuType type);
+	~TownsPC98_AudioDriver();
+
+	void loadMusicData(uint8 *data, bool loadPaused = false);
+	void loadSoundEffectData(uint8 *data, uint8 trackNum);
+	bool init();
+	void reset();
+
+	void fadeStep();
+
+	void pause() { _musicPlaying = false; }
+	void cont() { _musicPlaying = true; }
+
+	void timerCallbackB();
+	void timerCallbackA();
+
+	bool looping() { return _looping == _updateChannelsFlag ? true : false; }
+	bool musicPlaying() { return _musicPlaying; }
+
+	void setMusicVolume(int volume) { _musicVolume = volume; setVolumeIntern(_musicVolume, _sfxVolume); }
+	void setSoundEffectVolume(int volume) { _sfxVolume = volume; setVolumeIntern(_musicVolume, _sfxVolume); }
+
+protected:
+	void startSoundEffect();
+
+	void setMusicTempo(uint8 tempo);
+	void setSfxTempo(uint16 tempo);
+
+	TownsPC98_MusicChannel **_channels;
+	TownsPC98_MusicChannelSSG **_ssgChannels;
+	TownsPC98_SfxChannel **_sfxChannels;
+	TownsPC98_MusicChannelPCM *_rhythmChannel;
+
+	const uint8 *_opnCarrier;
+	const uint8 *_opnFreqTable;
+	const uint8 *_opnFreqTableSSG;
+	const uint8 *_opnFxCmdLen;
+	const uint8 *_opnLvlPresets;
+
+	uint8 *_musicBuffer;
+	uint8 *_sfxBuffer;
+	uint8 *_trackPtr;
+	uint8 *_patches;
+	uint8 *_ssgPatches;
+
+	uint8 _updateChannelsFlag;
+	uint8 _updateSSGFlag;
+	uint8 _updateRhythmFlag;
+	uint8 _updateSfxFlag;
+	uint8 _finishedChannelsFlag;
+	uint8 _finishedSSGFlag;
+	uint8 _finishedRhythmFlag;
+	uint8 _finishedSfxFlag;
+
+	bool _musicPlaying;
+	bool _sfxPlaying;
+	uint8 _fading;
+	uint8 _looping;
+	uint32 _musicTickCounter;
+
+	int _sfxOffs;
+	uint8 *_sfxData;
+	uint16 _sfxOffsets[2];
+
+	uint16 _musicVolume;
+	uint16 _sfxVolume;
+
+	static const uint8 _drvTables[];
+
+	bool _ready;
+};
+
+#endif
+
diff --git a/sound/softsynth/fmtowns_pc98/towns_pc98_fmsynth.cpp b/sound/softsynth/fmtowns_pc98/towns_pc98_fmsynth.cpp
new file mode 100644
index 0000000000..5436c8e0c7
--- /dev/null
+++ b/sound/softsynth/fmtowns_pc98/towns_pc98_fmsynth.cpp
@@ -0,0 +1,1461 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "sound/softsynth/fmtowns_pc98/towns_pc98_fmsynth.h"
+#include "common/endian.h"
+
+class TownsPC98_FmSynthOperator {
+public:
+	TownsPC98_FmSynthOperator(const uint32 timerbase, const uint8 *rateTable,
+		const uint8 *shiftTable, const uint8 *attackDecayTable, const uint32 *frqTable,
+		const uint32 *sineTable, const int32 *tlevelOut, const int32 *detuneTable);
+	~TownsPC98_FmSynthOperator() {}
+
+	void keyOn();
+	void keyOff();
+	void frequency(int freq);
+	void updatePhaseIncrement();
+	void recalculateRates();
+	void generateOutput(int32 phasebuf, int32 *feedbuf, int32 &out);
+
+	void feedbackLevel(int32 level) {_feedbackLevel = level ? level + 6 : 0; }
+	void detune(int value) { _detn = &_detnTbl[value << 5]; }
+	void multiple(uint32 value) { _multiple = value ? (value << 1) : 1;	}
+	void attackRate(uint32 value) { _specifiedAttackRate = value; }
+	bool scaleRate(uint8 value);
+	void decayRate(uint32 value) { _specifiedDecayRate = value;	recalculateRates();	}
+	void sustainRate(uint32 value) { _specifiedSustainRate = value;	recalculateRates();	}
+	void sustainLevel(uint32 value) { _sustainLevel = (value == 0x0f) ? 0x3e0 : value << 5; }
+	void releaseRate(uint32 value) { _specifiedReleaseRate = value;	recalculateRates();	}
+	void totalLevel(uint32 value) { _totalLevel = value << 3; }
+	void ampModulation(bool enable) { _ampMod = enable; }
+	void reset();
+
+protected:
+	EnvelopeState _state;
+	bool _playing;
+	uint32 _feedbackLevel;
+	uint32 _multiple;
+	uint32 _totalLevel;
+	uint8 _keyScale1;
+	uint8 _keyScale2;
+	uint32 _specifiedAttackRate;
+	uint32 _specifiedDecayRate;
+	uint32 _specifiedSustainRate;
+	uint32 _specifiedReleaseRate;
+	uint32 _tickCount;
+	uint32 _sustainLevel;
+	
+	bool _ampMod;
+	uint32 _frequency;
+	uint8 _kcode;
+	uint32 _phase;
+	uint32 _phaseIncrement;
+	const int32 *_detn;
+
+	const uint8 *_rateTbl;
+	const uint8 *_rshiftTbl;
+	const uint8 *_adTbl;
+	const uint32 *_fTbl;
+	const uint32 *_sinTbl;
+	const int32 *_tLvlTbl;
+	const int32 *_detnTbl;
+
+	const uint32 _tickLength;
+	uint32 _timer;
+	int32 _currentLevel;
+
+	struct EvpState {
+		uint8 rate;
+		uint8 shift;
+	} fs_a, fs_d, fs_s, fs_r;
+};
+
+TownsPC98_FmSynthOperator::TownsPC98_FmSynthOperator(const uint32 timerbase, const uint8 *rateTable,
+	const uint8 *shiftTable, const uint8 *attackDecayTable,	const uint32 *frqTable,
+	const uint32 *sineTable, const int32 *tlevelOut, const int32 *detuneTable) :
+	_rateTbl(rateTable), _rshiftTbl(shiftTable), _adTbl(attackDecayTable), _fTbl(frqTable),
+	_sinTbl(sineTable), _tLvlTbl(tlevelOut), _detnTbl(detuneTable), _tickLength(timerbase * 2),
+	_specifiedAttackRate(0), _specifiedDecayRate(0), _specifiedReleaseRate(0), _specifiedSustainRate(0),
+	_phase(0), _state(kEnvReady),	_playing(false), _timer(0), _keyScale1(0),
+	_keyScale2(0), _currentLevel(1023),	_ampMod(false), _tickCount(0) {
+
+	fs_a.rate = fs_a.shift = fs_d.rate = fs_d.shift = fs_s.rate = fs_s.shift = fs_r.rate = fs_r.shift = 0;
+
+	reset();
+}
+
+void TownsPC98_FmSynthOperator::keyOn() {
+	if (_playing)
+		return;
+
+	_playing = true;
+	_state = kEnvAttacking;
+	_phase = 0;
+}
+
+void TownsPC98_FmSynthOperator::keyOff() {
+	if (!_playing)
+		return;
+
+	_playing = false;
+	if (_state != kEnvReady)
+		_state = kEnvReleasing;
+}
+
+void TownsPC98_FmSynthOperator::frequency(int freq) {
+	uint8 block = (freq >> 11);
+	uint16 pos = (freq & 0x7ff);
+	uint8 c = pos >> 7;
+
+	_kcode = (block << 2) | ((c < 7) ? 0 : ((c > 8) ? 3 : c - 6 ));
+	_frequency = _fTbl[pos << 1] >> (7 - block);
+}
+
+void TownsPC98_FmSynthOperator::updatePhaseIncrement() {
+	_phaseIncrement = ((_frequency + _detn[_kcode]) * _multiple) >> 1;
+	uint8 keyscale = _kcode >> _keyScale1;
+	if (_keyScale2 != keyscale) {
+		_keyScale2 = keyscale;
+		recalculateRates();
+	}
+}
+
+void TownsPC98_FmSynthOperator::recalculateRates() {
+	int k = _keyScale2;
+	int r = _specifiedAttackRate ? (_specifiedAttackRate << 1) + 0x20 : 0;
+	fs_a.rate = ((r + k) < 94) ? _rateTbl[r + k] : 136;
+	fs_a.shift = ((r + k) < 94) ? _rshiftTbl[r + k] : 0;
+
+	r = _specifiedDecayRate ? (_specifiedDecayRate << 1) + 0x20 : 0;
+	fs_d.rate = _rateTbl[r + k];
+	fs_d.shift = _rshiftTbl[r + k];
+
+	r = _specifiedSustainRate ? (_specifiedSustainRate << 1) + 0x20 : 0;
+	fs_s.rate = _rateTbl[r + k];
+	fs_s.shift = _rshiftTbl[r + k];
+
+	r = (_specifiedReleaseRate << 2) + 0x22;
+	fs_r.rate = _rateTbl[r + k];
+	fs_r.shift = _rshiftTbl[r + k];
+}
+
+void TownsPC98_FmSynthOperator::generateOutput(int32 phasebuf, int32 *feed, int32 &out) {
+	if (_state == kEnvReady)
+		return;
+
+	_timer += _tickLength;
+	while (_timer > 0x5B8D80) {
+		_timer -= 0x5B8D80;
+		++_tickCount;
+
+		int32 levelIncrement = 0;
+		uint32 targetTime = 0;
+		int32 targetLevel = 0;
+		EnvelopeState nextState = kEnvReady;
+
+		switch (_state) {
+		case kEnvReady:
+			return;
+		case kEnvAttacking:
+			targetLevel = 0;
+			nextState = kEnvDecaying;
+			if ((_specifiedAttackRate << 1) + _keyScale2 < 64) {
+				targetTime = (1 << fs_a.shift) - 1;
+				levelIncrement = (~_currentLevel * _adTbl[fs_a.rate + ((_tickCount >> fs_a.shift) & 7)]) >> 4;
+				break;
+			} else {
+				_currentLevel = targetLevel;
+				_state = nextState;
+			}
+			// Fall through
+		case kEnvDecaying:
+			targetTime = (1 << fs_d.shift) - 1;
+			nextState = kEnvSustaining;
+			targetLevel = _sustainLevel;
+			levelIncrement = _adTbl[fs_d.rate + ((_tickCount >> fs_d.shift) & 7)];
+			break;
+		case kEnvSustaining:
+			targetTime = (1 << fs_s.shift) - 1;
+			nextState = kEnvSustaining;
+			targetLevel = 1023;
+			levelIncrement = _adTbl[fs_s.rate + ((_tickCount >> fs_s.shift) & 7)];
+			break;
+		case kEnvReleasing:
+			targetTime = (1 << fs_r.shift) - 1;
+			nextState = kEnvReady;
+			targetLevel = 1023;
+			levelIncrement = _adTbl[fs_r.rate + ((_tickCount >> fs_r.shift) & 7)];
+			break;
+		}
+
+		if (!(_tickCount & targetTime)) {
+			_currentLevel += levelIncrement;
+			if ((_state == kEnvAttacking && _currentLevel <= targetLevel) || (_state != kEnvAttacking && _currentLevel >= targetLevel)) {
+				if (_state != kEnvDecaying)
+					_currentLevel = targetLevel;
+				_state = nextState;
+			}
+		}
+	}
+
+	uint32 lvlout = _totalLevel + (uint32) _currentLevel;
+
+
+	int32 outp = 0;
+	int32 *i = &outp, *o = &outp;
+	int phaseShift = 0;
+
+	if (feed) {
+		o = &feed[0];
+		i = &feed[1];
+		phaseShift = _feedbackLevel ? ((*o + *i) << _feedbackLevel) : 0;
+		*o = *i;
+	} else {
+		phaseShift = phasebuf << 15;
+	}
+
+	if (lvlout < 832) {
+		uint32 index = (lvlout << 3) + _sinTbl[(((int32)((_phase & 0xffff0000)
+			+ phaseShift)) >> 16) & 0x3ff];
+		*i = ((index < 6656) ? _tLvlTbl[index] : 0);
+	} else {
+		*i = 0;
+	}
+
+	_phase += _phaseIncrement;
+	out += *o;
+}
+
+void TownsPC98_FmSynthOperator::reset(){
+	keyOff();
+	_timer = 0;
+	_keyScale2 = 0;
+	_currentLevel = 1023;
+
+	frequency(0);
+	detune(0);
+	scaleRate(0);
+	multiple(0);
+	updatePhaseIncrement();
+	attackRate(0);
+	decayRate(0);
+	releaseRate(0);
+	sustainRate(0);
+	feedbackLevel(0);
+	totalLevel(127);
+	ampModulation(false);
+}
+
+bool TownsPC98_FmSynthOperator::scaleRate(uint8 value) {
+	value = 3 - value;
+	if (_keyScale1 != value) {
+		_keyScale1 = value;
+		return true;
+	}
+
+	int k = _keyScale2;
+	int r = _specifiedAttackRate ? (_specifiedAttackRate << 1) + 0x20 : 0;
+	fs_a.rate = ((r + k) < 94) ? _rateTbl[r + k] : 136;
+	fs_a.shift = ((r + k) < 94) ? _rshiftTbl[r + k] : 0;
+	return false;
+}
+
+class TownsPC98_FmSynthSquareSineSource {
+public:
+	TownsPC98_FmSynthSquareSineSource(const uint32 timerbase);
+	~TownsPC98_FmSynthSquareSineSource();
+
+	void init(const int *rsTable, const int *rseTable);
+	void reset();
+	void writeReg(uint8 address, uint8 value, bool force = false);
+
+	void nextTick(int32 *buffer, uint32 bufferSize);
+
+	void setVolumeIntern(int volA, int volB) { _volumeA = volA; _volumeB = volB; }
+	void setVolumeChannelMasks(int channelMaskA, int channelMaskB) { _volMaskA = channelMaskA; _volMaskB = channelMaskB; }
+
+	uint8 chanEnable() const { return _chanEnable; }
+private:
+	void updateRegs();
+
+	uint8 _updateRequestBuf[64];
+	int _updateRequest;
+	int _rand;
+
+	int8 _evpTimer;
+	uint32 _pReslt;
+	uint8 _attack;
+
+	bool _evpUpdate, _cont;
+
+	int _evpUpdateCnt;
+	uint8 _outN;
+	int _nTick;
+
+	int32 *_tlTable;
+	int32 *_tleTable;
+
+	const uint32 _tickLength;
+	uint32 _timer;
+
+	struct Channel {
+		int tick;
+		uint8 smp;
+		uint8 out;
+
+		uint8 frqL;
+		uint8 frqH;
+		uint8 vol;
+	} _channels[3];
+
+	uint8 _noiseGenerator;
+	uint8 _chanEnable;
+
+	uint8 **_reg;
+
+	uint16 _volumeA;
+	uint16 _volumeB;
+	int _volMaskA;
+	int _volMaskB;
+
+	bool _ready;
+};
+
+class TownsPC98_FmSynthPercussionSource {
+public:
+	TownsPC98_FmSynthPercussionSource(const uint32 timerbase);
+	~TownsPC98_FmSynthPercussionSource() { delete[] _reg; }
+
+	void init(const uint8 *instrData = 0);
+	void reset();
+	void writeReg(uint8 address, uint8 value);
+
+	void nextTick(int32 *buffer, uint32 bufferSize);
+
+	void setVolumeIntern(int volA, int volB) { _volumeA = volA; _volumeB = volB; }
+	void setVolumeChannelMasks(int channelMaskA, int channelMaskB) { _volMaskA = channelMaskA; _volMaskB = channelMaskB; }
+
+private:
+	struct RhtChannel {
+		const uint8 *data;
+
+		const uint8 *start;
+		const uint8 *end;
+		const uint8 *pos;
+		uint32 size;
+		bool active;
+		uint8 level;
+
+		int8 decState;
+		uint8 decStep;
+
+		int16 samples[2];
+		int out;
+
+		uint8 startPosH;
+		uint8 startPosL;
+		uint8 endPosH;
+		uint8 endPosL;
+	};
+
+	void recalcOuput(RhtChannel *ins);
+	void advanceInput(RhtChannel *ins);
+
+	RhtChannel _rhChan[6];
+
+	uint8 _totalLevel;
+
+	const uint32 _tickLength;
+	uint32 _timer;
+
+	uint8 **_reg;
+
+	uint16 _volumeA;
+	uint16 _volumeB;
+	int _volMaskA;
+	int _volMaskB;
+
+	bool _ready;
+};
+
+TownsPC98_FmSynthSquareSineSource::TownsPC98_FmSynthSquareSineSource(const uint32 timerbase) : _tlTable(0),
+	_tleTable(0), _updateRequest(-1), _tickLength(timerbase * 27), _ready(0), _reg(0), _rand(1), _outN(1),
+	_nTick(0), _evpUpdateCnt(0), _evpTimer(0x1f), _pReslt(0x1f), _attack(0), _cont(false), _evpUpdate(true),
+	_timer(0), _noiseGenerator(0), _chanEnable(0),
+	_volMaskA(0), _volMaskB(0), _volumeA(Audio::Mixer::kMaxMixerVolume), _volumeB(Audio::Mixer::kMaxMixerVolume) {
+
+	memset(_channels, 0, sizeof(_channels));
+	memset(_updateRequestBuf, 0, sizeof(_updateRequestBuf));
+	_reg = new uint8 *[11];
+
+	_reg[0] = &_channels[0].frqL;
+	_reg[1] = &_channels[0].frqH;
+	_reg[2] = &_channels[1].frqL;
+	_reg[3] = &_channels[1].frqH;
+	_reg[4] = &_channels[2].frqL;
+	_reg[5] = &_channels[2].frqH;
+	_reg[6] = &_noiseGenerator;
+	_reg[7] = &_chanEnable;
+	_reg[8] = &_channels[0].vol;
+	_reg[9] = &_channels[1].vol;
+	_reg[10] = &_channels[2].vol;
+
+	reset();
+}
+
+TownsPC98_FmSynthSquareSineSource::~TownsPC98_FmSynthSquareSineSource() {
+	delete[] _tlTable;
+	delete[] _tleTable;
+	delete[] _reg;
+}
+
+void TownsPC98_FmSynthSquareSineSource::init(const int *rsTable, const int *rseTable) {
+	if (_ready) {
+		reset();
+		return;
+	}
+
+	delete[] _tlTable;
+	delete[] _tleTable;
+	_tlTable = new int32[16];
+	_tleTable = new int32[32];
+	float a, b, d;
+	d = 801.0f;
+
+	for (int i = 0; i < 16; i++) {
+		b = 1.0f / rsTable[i];
+		a = 1.0f / d + b + 1.0f / 1000.0f;
+		float v = (b / a) * 32767.0f;
+		_tlTable[i] = (int32) v;
+
+		b = 1.0f / rseTable[i];
+		a = 1.0f / d + b + 1.0f / 1000.0f;
+		v = (b / a) * 32767.0f;
+		_tleTable[i] = (int32) v;
+	}
+
+	for (int i = 16; i < 32; i++) {
+		b = 1.0f / rseTable[i];
+		a = 1.0f / d + b + 1.0f / 1000.0f;
+		float v = (b / a) * 32767.0f;
+		_tleTable[i] = (int32) v;
+	}
+
+	_ready = true;
+}
+
+void TownsPC98_FmSynthSquareSineSource::reset() {
+	_rand = 1;
+	_outN = 1;
+	_updateRequest = -1;
+	_nTick = _evpUpdateCnt = 0;
+	_evpTimer = 0x1f;
+	_pReslt = 0x1f;
+	_attack = 0;
+	_cont = false;
+	_evpUpdate = true;
+	_timer = 0;
+
+	for (int i = 0; i < 3; i++) {
+		_channels[i].tick = 0;
+		_channels[i].smp = _channels[i].out = 0;
+	}
+
+	for (int i = 0; i < 14; i++)
+		writeReg(i, 0, true);
+
+	writeReg(7, 0xbf, true);
+}
+
+void TownsPC98_FmSynthSquareSineSource::writeReg(uint8 address, uint8 value, bool force) {
+	if (!_ready)
+		return;
+
+	if (address > 10 || *_reg[address] == value) {
+		if ((address == 11 || address == 12 || address == 13) && value)
+			warning("TownsPC98_FmSynthSquareSineSource: unsupported reg address: %d", address);
+		return;
+	}
+
+	if (!force) {
+		if (_updateRequest >= 63) {
+			warning("TownsPC98_FmSynthSquareSineSource: event buffer overflow");
+			_updateRequest = -1;
+		}
+		_updateRequestBuf[++_updateRequest] = value;
+		_updateRequestBuf[++_updateRequest] = address;
+		return;
+	}
+
+	*_reg[address] = value;
+}
+
+void TownsPC98_FmSynthSquareSineSource::nextTick(int32 *buffer, uint32 bufferSize) {
+	if (!_ready)
+		return;
+
+	for (uint32 i = 0; i < bufferSize; i++) {
+		_timer += _tickLength;
+		while (_timer > 0x5B8D80) {
+			_timer -= 0x5B8D80;
+
+			if (++_nTick >= (_noiseGenerator & 0x1f)) {
+				if ((_rand + 1) & 2)
+					_outN ^= 1;
+
+				_rand = (((_rand & 1) ^ ((_rand >> 3) & 1)) << 16) | (_rand >> 1);
+				_nTick = 0;
+			}
+
+			for (int ii = 0; ii < 3; ii++) {
+				if (++_channels[ii].tick >= (((_channels[ii].frqH & 0x0f) << 8) | _channels[ii].frqL)) {
+					_channels[ii].tick = 0;
+					_channels[ii].smp ^= 1;
+				}
+				_channels[ii].out = (_channels[ii].smp | ((_chanEnable >> ii) & 1)) & (_outN | ((_chanEnable >> (ii + 3)) & 1));
+			}
+
+			if (_evpUpdate) {
+				if (++_evpUpdateCnt >= 0) {
+					_evpUpdateCnt = 0;
+
+					if (--_evpTimer < 0) {
+						if (_cont) {
+							_evpTimer &= 0x1f;
+						} else {
+							_evpUpdate = false;
+							_evpTimer = 0;
+						}
+					}
+				}
+			}
+			_pReslt = _evpTimer ^ _attack;
+			updateRegs();
+		}
+
+		int32 finOut = 0;
+		for (int ii = 0; ii < 3; ii++) {
+			int32 finOutTemp = ((_channels[ii].vol >> 4) & 1) ? _tleTable[_channels[ii].out ? _pReslt : 0] : _tlTable[_channels[ii].out ? (_channels[ii].vol & 0x0f) : 0];
+
+			if ((1 << ii) & _volMaskA)
+				finOutTemp = (finOutTemp * _volumeA) / Audio::Mixer::kMaxMixerVolume;
+
+			if ((1 << ii) & _volMaskB)
+				finOutTemp = (finOutTemp * _volumeB) / Audio::Mixer::kMaxMixerVolume;
+
+			finOut += finOutTemp;
+		}
+
+		finOut /= 3;		
+
+		buffer[i << 1] += finOut;
+		buffer[(i << 1) + 1] += finOut;
+	}
+}
+
+void TownsPC98_FmSynthSquareSineSource::updateRegs() {
+	for (int i = 0; i < _updateRequest;) {
+		uint8 b = _updateRequestBuf[i++];
+		uint8 a = _updateRequestBuf[i++];
+		writeReg(a, b, true);
+	}
+	_updateRequest = -1;
+}
+
+TownsPC98_FmSynthPercussionSource::TownsPC98_FmSynthPercussionSource(const uint32 timerbase) :
+	_tickLength(timerbase * 2), _timer(0), _ready(false), _volMaskA(0), _volMaskB(0), _volumeA(Audio::Mixer::kMaxMixerVolume), _volumeB(Audio::Mixer::kMaxMixerVolume) {
+
+	memset(_rhChan, 0, sizeof(RhtChannel) * 6);
+	_reg = new uint8 *[40];
+
+	_reg[0] = _reg[1] = _reg[2] = _reg[3] = _reg[4] = _reg[5] = _reg[6] = _reg[7] = _reg[8] = _reg[9] = _reg[10] = _reg[11] = _reg[12] = _reg[13] = _reg[14] = _reg[15] = 0;
+	_reg[16] = &_rhChan[0].startPosL;
+	_reg[17] = &_rhChan[1].startPosL;
+	_reg[18] = &_rhChan[2].startPosL;
+	_reg[19] = &_rhChan[3].startPosL;
+	_reg[20] = &_rhChan[4].startPosL;
+	_reg[21] = &_rhChan[5].startPosL;
+	_reg[22] = &_rhChan[0].startPosH;
+	_reg[23] = &_rhChan[1].startPosH;
+	_reg[24] = &_rhChan[2].startPosH;
+	_reg[25] = &_rhChan[3].startPosH;
+	_reg[26] = &_rhChan[4].startPosH;
+	_reg[27] = &_rhChan[5].startPosH;
+	_reg[28] = &_rhChan[0].endPosL;
+	_reg[29] = &_rhChan[1].endPosL;
+	_reg[30] = &_rhChan[2].endPosL;
+	_reg[31] = &_rhChan[3].endPosL;
+	_reg[32] = &_rhChan[4].endPosL;
+	_reg[33] = &_rhChan[5].endPosL;
+	_reg[34] = &_rhChan[0].endPosH;
+	_reg[35] = &_rhChan[1].endPosH;
+	_reg[36] = &_rhChan[2].endPosH;
+	_reg[37] = &_rhChan[3].endPosH;
+	_reg[38] = &_rhChan[4].endPosH;
+	_reg[39] = &_rhChan[5].endPosH;
+}
+
+void TownsPC98_FmSynthPercussionSource::init(const uint8 *instrData) {
+	if (_ready) {
+		reset();
+		return;
+	}
+
+	const uint8 *start = instrData;
+	const uint8 *pos = start;
+
+	if (instrData) {
+		for (int i = 0; i < 6; i++) {
+			_rhChan[i].data = start + READ_BE_UINT16(pos);
+			pos += 2;
+			_rhChan[i].size = READ_BE_UINT16(pos);
+			pos += 2;
+		}
+		reset();
+		_ready = true;
+	} else {
+		memset(_rhChan, 0, sizeof(RhtChannel) * 6);
+		_ready = false;
+	}
+}
+
+void TownsPC98_FmSynthPercussionSource::reset() {
+	_timer = 0;
+	_totalLevel = 63;
+
+	for (int i = 0; i < 6; i++) {
+		RhtChannel *s = &_rhChan[i];
+		s->pos = s->start = s->data;
+		s->end = s->data + s->size;
+		s->active = false;
+		s->level = 0;
+		s->out = 0;
+		s->decStep = 1;
+		s->decState = 0;
+		s->samples[0] = s->samples[1] = 0;
+		s->startPosH = s->startPosL = s->endPosH = s->endPosL = 0;
+	}
+}
+
+void TownsPC98_FmSynthPercussionSource::writeReg(uint8 address, uint8 value) {
+	if (!_ready)
+		return;
+
+	 uint8 h = address >> 4;
+	 uint8 l = address & 15;
+
+	if (address > 15)
+		*_reg[address] = value;
+
+	if (address == 0) {
+		if (value & 0x80) {
+			//key off
+			for (int i = 0; i < 6; i++) {
+				if ((value >> i) & 1)
+					_rhChan[i].active = false;
+			}
+		} else {
+			//key on
+			for (int i = 0; i < 6; i++) {
+				if ((value >> i) & 1) {
+					RhtChannel *s = &_rhChan[i];
+					s->pos = s->start;
+					s->active = true;
+					s->out = 0;
+					s->samples[0] = s->samples[1] = 0;
+					s->decStep = 1;
+					s->decState = 0;
+				}
+			}
+		}
+	} else if (address == 1) {
+		// total level
+		_totalLevel = (value & 63) ^ 63;
+		for (int i = 0; i < 6; i++)
+			recalcOuput(&_rhChan[i]);
+	} else if (!h && l & 8) {
+		// instrument level
+		l &= 7;
+		_rhChan[l].level = (value & 0x1f) ^ 0x1f;
+		recalcOuput(&_rhChan[l]);
+	} else if (h & 3) {
+		l &= 7;
+		if (h == 1) {
+			// set start offset
+			_rhChan[l].start  = _rhChan[l].data + ((_rhChan[l].startPosH << 8 | _rhChan[l].startPosL) << 8);
+		} else if (h == 2) {
+			// set end offset
+			_rhChan[l].end = _rhChan[l].data + ((_rhChan[l].endPosH << 8 | _rhChan[l].endPosL) << 8) + 255;
+		}
+	}
+}
+
+void TownsPC98_FmSynthPercussionSource::nextTick(int32 *buffer, uint32 bufferSize) {
+	if (!_ready)
+		return;
+
+	for (uint32 i = 0; i < bufferSize; i++) {
+		_timer += _tickLength;
+		while (_timer > 0x5B8D80) {
+			_timer -= 0x5B8D80;
+
+			for (int ii = 0; ii < 6; ii++) {
+				RhtChannel *s = &_rhChan[ii];
+				if (s->active) {
+					recalcOuput(s);
+					if (s->decStep) {
+						advanceInput(s);
+						if (s->pos == s->end)
+							s->active = false;
+					}
+					s->decStep ^= 1;
+				}
+			}
+		}
+
+		int32 finOut = 0;
+
+		for (int ii = 0; ii < 6; ii++) {
+			if (_rhChan[ii].active)
+				finOut += _rhChan[ii].out;
+		}
+
+		finOut <<= 1;
+
+		if (1 & _volMaskA)
+			finOut = (finOut * _volumeA) / Audio::Mixer::kMaxMixerVolume;
+
+		if (1 & _volMaskB)
+			finOut = (finOut * _volumeB) / Audio::Mixer::kMaxMixerVolume;
+
+		buffer[i << 1] += finOut;
+		buffer[(i << 1) + 1] += finOut;
+	}
+}
+
+void TownsPC98_FmSynthPercussionSource::recalcOuput(RhtChannel *ins) {
+	uint32 s = _totalLevel + ins->level;
+	uint32 x = s > 62 ? 0 : (1 + (s >> 3));
+	int32 y = s > 62 ? 0 : (15 - (s & 7));
+	ins->out = ((ins->samples[ins->decStep] * y) >> x) & ~3;
+}
+
+void TownsPC98_FmSynthPercussionSource::advanceInput(RhtChannel *ins) {
+	static const int8 adjustIndex[] = {-1, -1, -1, -1, 2, 5, 7, 9 };
+
+	static const int16 stepTable[] = { 16, 17, 19, 21, 23, 25, 28, 31, 34, 37, 41, 45, 50, 55,
+		60, 66, 73, 80, 88, 97, 107, 118, 130, 143, 157, 173, 190, 209, 230, 253, 279, 307, 337,
+		371, 408, 449, 494, 544, 598, 658, 724, 796, 876, 963, 1060, 1166, 1282, 1411, 1552
+	};
+
+	uint8 cur = (int8) *ins->pos++;
+
+	for (int i = 0; i < 2; i++) {
+		int b = (2 * (cur & 7) + 1) * stepTable[ins->decState] / 8;
+		ins->samples[i] = CLIP<int16>(ins->samples[i ^ 1] + (cur & 8 ? b : -b), -2048, 2047);
+		ins->decState = CLIP<int8>(ins->decState + adjustIndex[cur & 7], 0, 48);
+		cur >>= 4;
+	}
+}
+
+TownsPC98_FmSynth::TownsPC98_FmSynth(Audio::Mixer *mixer, EmuType type) :
+	_mixer(mixer),
+	_chanInternal(0), _ssg(0), _prc(0),
+	_numChan(type == kType26 ? 3 : 6), _numSSG(type == kTypeTowns ? 0 : 3), _hasPercussion(type == kType86 ? true : false),
+	_oprRates(0), _oprRateshift(0), _oprAttackDecay(0), _oprFrq(0), _oprSinTbl(0), _oprLevelOut(0), _oprDetune(0),
+	_baserate(55125.0f / (float)mixer->getOutputRate()),
+	_volMaskA(0), _volMaskB(0), _volumeA(255), _volumeB(255),
+	_regProtectionFlag(false), _ready(false) {
+
+	memset(&_timers[0], 0, sizeof(ChipTimer));
+	memset(&_timers[1], 0, sizeof(ChipTimer));
+	_timers[0].cb = &TownsPC98_FmSynth::timerCallbackA;
+	_timers[1].cb = &TownsPC98_FmSynth::timerCallbackB;
+	_timerbase = (uint32)(_baserate * 1000000.0f);
+}
+
+TownsPC98_FmSynth::~TownsPC98_FmSynth() {
+	Common::StackLock lock(_mutex);
+	_mixer->stopHandle(_soundHandle);
+	delete _ssg;
+	delete _prc;
+	delete[] _chanInternal;
+
+	delete[] _oprRates;
+	delete[] _oprRateshift;
+	delete[] _oprFrq;
+	delete[] _oprAttackDecay;
+	delete[] _oprSinTbl;
+	delete[] _oprLevelOut;
+	delete[] _oprDetune;
+}
+
+bool TownsPC98_FmSynth::init() {
+	if (_ready) {
+		reset();
+		return true;
+	}
+
+	generateTables();
+
+	_chanInternal = new ChanInternal[_numChan];
+	for (int i = 0; i < _numChan; i++) {
+		memset(&_chanInternal[i], 0, sizeof(ChanInternal));
+		for (int j = 0; j < 4; ++j)
+			_chanInternal[i].opr[j] = new TownsPC98_FmSynthOperator(_timerbase, _oprRates, _oprRateshift, _oprAttackDecay, _oprFrq, _oprSinTbl, _oprLevelOut, _oprDetune);
+	}
+
+	if (_numSSG) {
+		_ssg = new TownsPC98_FmSynthSquareSineSource(_timerbase);
+		_ssg->init(&_ssgTables[0], &_ssgTables[16]);
+	}
+
+	if (_hasPercussion) {
+		_prc = new TownsPC98_FmSynthPercussionSource(_timerbase);
+		_prc->init(_percussionData);
+	}
+
+	_mixer->playStream(Audio::Mixer::kPlainSoundType,
+		&_soundHandle, this, -1, Audio::Mixer::kMaxChannelVolume, 0, DisposeAfterUse::NO, true);
+
+	_ready = true;
+
+	return true;
+}
+
+void TownsPC98_FmSynth::reset() {
+	for (int i = 0; i < _numChan; i++) {
+		for (int ii = 0; ii < 4; ii++)
+			_chanInternal[i].opr[ii]->reset();
+		memset(_chanInternal[i].feedbuf, 0, 3);
+		_chanInternal[i].algorithm = 0;
+		_chanInternal[i].frqTemp = 0;
+		_chanInternal[i].enableLeft = _chanInternal[i].enableRight = true;
+		_chanInternal[i].updateEnvelopeParameters = false;
+	}
+
+	writeReg(0, 0x27, 0x33);
+
+	if (_ssg)
+		_ssg->reset();
+
+	if (_prc)
+		_prc->reset();
+}
+
+void TownsPC98_FmSynth::writeReg(uint8 part, uint8 regAddress, uint8 value) {
+	if (_regProtectionFlag || !_ready)
+		return;
+
+	static const uint8 oprOrdr[] = { 0, 2, 1, 3 };
+
+	Common::StackLock lock(_mutex);
+
+	uint8 h = regAddress & 0xf0;
+	uint8 l = (regAddress & 0x0f);
+
+	ChanInternal *c = 0;
+	TownsPC98_FmSynthOperator **co = 0;
+	TownsPC98_FmSynthOperator *o = 0;
+
+	if (regAddress > 0x2F) {
+		c = &_chanInternal[(l & 3) + 3 * part];
+		co = c->opr;
+		o = c->opr[oprOrdr[(l - (l & 3)) >> 2]];
+	} else if (regAddress == 0x28) {
+		c = &_chanInternal[(value & 3) + ((value & 4) ? 3 : 0)];
+		co = c->opr;
+	}
+
+	switch (h) {
+	case 0x00:
+		// ssg
+		if (_ssg)
+			_ssg->writeReg(l, value);
+		break;
+	case 0x10:
+		// pcm rhythm channel
+		if (_prc)
+			_prc->writeReg(l, value);
+		break;
+	case 0x20:
+		if (l == 8) {
+			// Key on/off
+			for (int i = 0; i < 4; i++) {
+				if ((value >> (4 + i)) & 1)
+					co[oprOrdr[i]]->keyOn();
+				else
+					co[oprOrdr[i]]->keyOff();
+			}
+		} else if (l == 4) {
+			// Timer A
+			_timers[0].value = (_timers[0].value & 3) | (value << 2);
+		} else if (l == 5) {
+			// Timer A
+			_timers[0].value = (_timers[0].value & 0x3fc) | (value & 3);
+		} else if (l == 6) {
+			// Timer B
+			_timers[1].value = value & 0xff;
+		} else if (l == 7) {
+			if (value & 1) {
+				float spc = (float)(0x400 - _timers[0].value) / _baserate;
+				if (spc < 1) {
+					warning("TownsPC98_FmSynth: Invalid Timer A setting: %d", _timers[0].value);
+					spc = 1;
+				}
+
+				_timers[0].smpPerCb = (int32) spc;
+				_timers[0].smpPerCbRem = (uint32) ((spc - (float)_timers[0].smpPerCb) * 1000000.0f);
+				_timers[0].smpTillCb = _timers[0].smpPerCb;				
+				_timers[0].smpTillCbRem = _timers[0].smpPerCbRem;
+				_timers[0].enabled = true;
+			} else {
+				_timers[0].enabled = false;
+			}			
+
+			if (value & 2) {				
+				float spc = (float)(0x100 - _timers[1].value) * 16.0f / _baserate;
+				if (spc < 1) {
+					warning("TownsPC98_FmSynth: Invalid Timer B setting: %d", _timers[1].value);
+					spc = 1;
+				}
+
+				_timers[1].smpPerCb = (int32) spc;
+				_timers[1].smpPerCbRem = (uint32) ((spc - (float)_timers[1].smpPerCb) * 1000000.0f);
+				_timers[1].smpTillCb = _timers[1].smpPerCb;
+				_timers[1].smpTillCbRem = _timers[1].smpPerCbRem;
+				_timers[1].enabled = true;
+			} else {
+				_timers[1].enabled = false;
+			}
+			
+			if (value & 0x10) {
+				_timers[0].smpTillCb = _timers[0].smpPerCb;
+				_timers[0].smpTillCbRem = _timers[0].smpTillCbRem;
+			}
+
+			if (value & 0x20) {
+				_timers[1].smpTillCb = _timers[1].smpPerCb;
+				_timers[1].smpTillCbRem = _timers[1].smpTillCbRem;
+			}
+		} else if (l == 2) {
+			// LFO
+			if (value & 8)
+				warning("TownsPC98_FmSynth: TRYING TO USE LFO (NOT SUPPORTED)");
+		} else if (l == 10 || l == 11) {
+			// DAC
+			if (l == 11 && (value & 0x80))
+				warning("TownsPC98_FmSynth: TRYING TO USE DAC (NOT SUPPORTED)");
+		}
+		break;
+
+	case 0x30:
+		// detune, multiple
+		o->detune((value >> 4) & 7);
+		o->multiple(value & 0x0f);
+		c->updateEnvelopeParameters = true;
+		break;
+
+	case 0x40:
+		// total level
+		o->totalLevel(value & 0x7f);
+		break;
+
+	case 0x50:
+		// rate scaling, attack rate
+		o->attackRate(value & 0x1f);
+		if (o->scaleRate(value >> 6))
+			c->updateEnvelopeParameters = true;
+		break;
+
+	case 0x60:
+		// first decay rate, amplitude modulation
+		o->decayRate(value & 0x1f);
+		o->ampModulation(value & 0x80 ? true : false);
+		break;
+
+	case 0x70:
+		// secondary decay rate
+		o->sustainRate(value & 0x1f);
+		break;
+
+	case 0x80:
+		// secondary amplitude, release rate;
+		o->sustainLevel(value >> 4);
+		o->releaseRate(value & 0x0f);
+		break;
+
+	case 0x90:
+		warning("TownsPC98_FmSynth: TRYING TO USE SSG ENVELOPE SHAPES (NOT SUPPORTED)");
+		break;
+
+	case 0xa0:
+		// frequency
+		l &= ~3;
+		if (l == 0) {
+			c->frqTemp = (c->frqTemp & 0xff00) | value;
+			c->updateEnvelopeParameters = true;
+			for (int i = 0; i < 4; i++)
+				co[i]->frequency(c->frqTemp);
+		} else if (l == 4) {
+			c->frqTemp = (c->frqTemp & 0xff) | (value << 8);
+		} else if (l == 8) {
+			// Ch 3/6 special mode frq
+			warning("TownsPC98_FmSynth: TRYING TO USE CH 3/6 SPECIAL MODE FREQ (NOT SUPPORTED)");
+		} else if (l == 12) {
+			// Ch 3/6 special mode frq
+			warning("TownsPC98_FmSynth: TRYING TO USE CH 3/6 SPECIAL MODE FREQ (NOT SUPPORTED)");
+		}
+		break;
+
+	case 0xb0:
+		l &= ~3;
+		if (l == 0) {
+			// feedback, _algorithm
+			co[0]->feedbackLevel((value >> 3) & 7);
+			c->algorithm = value & 7;
+		} else if (l == 4) {
+			// stereo, LFO sensitivity
+			c->enableLeft = value & 0x80 ? true : false;
+			c->enableRight = value & 0x40 ? true : false;
+			c->ampModSensitivity((value & 0x30) >> 4);
+			c->frqModSensitivity(value & 3);
+		}
+		break;
+
+	default:
+		warning("TownsPC98_FmSynth: UNKNOWN ADDRESS %d", regAddress);
+	}
+}
+
+int TownsPC98_FmSynth::readBuffer(int16 *buffer, const int numSamples) {
+	Common::StackLock lock(_mutex);
+
+	memset(buffer, 0, sizeof(int16) * numSamples);
+	int32 *tmp = new int32[numSamples];
+	int32 *tmpStart = tmp;
+	memset(tmp, 0, sizeof(int32) * numSamples);
+	int32 samplesLeft = numSamples >> 1;
+
+	while (samplesLeft) {
+		int32 render = samplesLeft;
+
+		for (int i = 0; i < 2; i++) {
+			if (_timers[i].enabled && _timers[i].cb) {
+				if (!_timers[i].smpTillCb) {
+					(this->*_timers[i].cb)();
+					_timers[i].smpTillCb = _timers[i].smpPerCb;
+
+					_timers[i].smpTillCbRem += _timers[i].smpPerCbRem;
+					if (_timers[i].smpTillCbRem >= _timerbase) {
+						_timers[i].smpTillCb++;
+						_timers[i].smpTillCbRem -= _timerbase;
+					}
+				}
+				render = MIN(render, _timers[i].smpTillCb);
+			}
+		}
+
+		samplesLeft -= render;
+
+		for (int i = 0; i < 2; i++) {
+			if (_timers[i].enabled && _timers[i].cb) {
+				_timers[i].smpTillCb -= render;
+			}
+		}
+
+		nextTick(tmp, render);
+
+		if (_ssg)
+			_ssg->nextTick(tmp, render);
+		if (_prc)
+			_prc->nextTick(tmp, render);
+
+		nextTickEx(tmp, render);
+
+		for (int i = 0; i < render; ++i) {
+			int32 l = CLIP<int32>(tmp[i << 1], -32767, 32767);
+			buffer[i << 1] = (int16) l;
+			int32 r = CLIP<int32>(tmp[(i << 1) + 1], -32767, 32767);
+			buffer[(i << 1) + 1] = (int16) r;
+		}
+
+		buffer += (render << 1);
+		tmp += (render << 1);
+	}
+
+	delete[] tmpStart;
+	return numSamples;
+}
+
+uint8 TownsPC98_FmSynth::readSSGStatus() {
+	return _ssg->chanEnable();
+}
+
+void TownsPC98_FmSynth::setVolumeIntern(int volA, int volB) {
+	Common::StackLock lock(_mutex);
+	_volumeA = volA;
+	_volumeB = volB;
+	if (_ssg)
+		_ssg->setVolumeIntern(volA, volB);
+	if (_prc)
+		_prc->setVolumeIntern(volA, volB);
+}
+
+void TownsPC98_FmSynth::setVolumeChannelMasks(int channelMaskA, int channelMaskB) {
+	Common::StackLock lock(_mutex);
+	_volMaskA = channelMaskA;
+	_volMaskB = channelMaskB;
+	if (_ssg)
+		_ssg->setVolumeChannelMasks(_volMaskA >> _numChan, _volMaskB >> _numChan);
+	if (_prc)
+		_prc->setVolumeChannelMasks(_volMaskA >> (_numChan + _numSSG), _volMaskB >> (_numChan + _numSSG));	
+}
+
+void TownsPC98_FmSynth::generateTables() {
+	delete[] _oprRates;
+	_oprRates = new uint8[128];
+
+	WRITE_BE_UINT32(_oprRates + 32, _numChan == 6 ? 0x90900000 : 0x00081018);
+	WRITE_BE_UINT32(_oprRates + 36, _numChan == 6 ? 0x00001010 : 0x00081018);
+	memset(_oprRates, 0x90, 32);
+	memset(_oprRates + 96, 0x80, 32);
+	uint8 *dst = (uint8 *)_oprRates + 40;
+	for (int i = 0; i < 40; i += 4)
+		WRITE_BE_UINT32(dst + i, 0x00081018);
+	for (int i = 0; i < 48; i += 4)
+		WRITE_BE_UINT32(dst + i, 0x00081018);
+	dst += 40;
+	for (uint8 i = 0; i < 16; i ++) {
+		uint8 v = (i < 12) ? i : 12;
+		*dst++ = ((4 + v) << 3);
+	}
+
+	delete[] _oprRateshift;
+	_oprRateshift = new uint8[128];
+	memset(_oprRateshift, 0, 128);
+	dst = (uint8 *)_oprRateshift + 32;
+	for (int i = 11; i; i--) {
+		memset(dst, i, 4);
+		dst += 4;
+	}
+
+	delete[] _oprFrq;
+	_oprFrq = new uint32[0x1000];
+	for (uint32 i = 0; i < 0x1000; i++)
+		_oprFrq[i] = (uint32)(_baserate * (float)(i << 11));
+
+	delete[] _oprAttackDecay;
+	_oprAttackDecay = new uint8[152];
+	memset(_oprAttackDecay, 0, 152);
+	for (int i = 0; i < 36; i++)
+		WRITE_BE_UINT32(_oprAttackDecay + (i << 2), _adtStat[i]);
+
+	delete[] _oprSinTbl;
+	_oprSinTbl = new uint32[1024];
+	for (int i = 0; i < 1024; i++) {
+		double val = sin((double) (((i << 1) + 1) * PI / 1024.0));
+		double d_dcb = log(1.0 / (double)ABS(val)) / log(2.0) * 256.0;
+		int32 i_dcb = (int32)(2.0 * d_dcb);
+		i_dcb = (i_dcb & 1) ? (i_dcb >> 1) + 1 : (i_dcb >> 1);
+		_oprSinTbl[i] = (i_dcb << 1) + (val >= 0.0 ? 0 : 1);
+	}
+
+	delete[] _oprLevelOut;
+	_oprLevelOut = new int32[0x1a00];
+	for (int i = 0; i < 256; i++) {
+		double val = floor(65536.0 / pow(2.0, 0.00390625 * (double)(1 + i)));
+		int32 val_int = ((int32) val) >> 4;
+		_oprLevelOut[i << 1] = (val_int & 1) ? ((val_int >> 1) + 1) << 2 : (val_int >> 1) << 2;
+		_oprLevelOut[(i << 1) + 1] = -_oprLevelOut[i << 1];
+		for (int ii = 1; ii < 13; ii++) {
+			_oprLevelOut[(i << 1) + (ii << 9)] =  _oprLevelOut[i << 1] >> ii;
+			_oprLevelOut[(i << 1) + (ii << 9) + 1] = -_oprLevelOut[(i << 1) + (ii << 9)];
+		}
+	}
+
+	uint8 *dtt = new uint8[128];
+	memset(dtt, 0, 36);
+	memset(dtt + 36, 1, 8);
+	memcpy(dtt + 44, _detSrc, 84);
+
+	delete[] _oprDetune;
+	_oprDetune = new int32[256];
+	for (int i = 0; i < 128; i++) {
+		_oprDetune[i] = (int32)	((float)dtt[i] * _baserate * 64.0);
+		_oprDetune[i + 128] = -_oprDetune[i];
+	}
+
+	delete[] dtt;
+}
+
+void TownsPC98_FmSynth::nextTick(int32 *buffer, uint32 bufferSize) {
+	if (!_ready)
+		return;
+
+	for (int i = 0; i < _numChan; i++) {
+		TownsPC98_FmSynthOperator **o = _chanInternal[i].opr;
+
+		if (_chanInternal[i].updateEnvelopeParameters) {
+			_chanInternal[i].updateEnvelopeParameters = false;
+			for (int ii = 0; ii < 4 ; ii++)
+				o[ii]->updatePhaseIncrement();
+		}
+
+		for (uint32 ii = 0; ii < bufferSize ; ii++) {
+			int32 phbuf1, phbuf2, output;
+			phbuf1 = phbuf2 = output = 0;
+
+			int32 *leftSample = &buffer[ii * 2];
+			int32 *rightSample = &buffer[ii * 2 + 1];
+			int32 *del = &_chanInternal[i].feedbuf[2];
+			int32 *feed = _chanInternal[i].feedbuf;
+
+			switch (_chanInternal[i].algorithm) {
+			case 0:
+				o[0]->generateOutput(0, feed, phbuf1);
+				o[2]->generateOutput(*del, 0, phbuf2);
+				*del = 0;
+				o[1]->generateOutput(phbuf1, 0, *del);
+				o[3]->generateOutput(phbuf2, 0, output);
+				break;
+			case 1:
+				o[0]->generateOutput(0, feed, phbuf1);
+				o[2]->generateOutput(*del, 0, phbuf2);
+				o[1]->generateOutput(0, 0, phbuf1);
+				o[3]->generateOutput(phbuf2, 0, output);
+				*del = phbuf1;
+				break;
+			case 2:
+				o[0]->generateOutput(0, feed, phbuf2);
+				o[2]->generateOutput(*del, 0, phbuf2);
+				o[1]->generateOutput(0, 0, phbuf1);
+				o[3]->generateOutput(phbuf2, 0, output);
+				*del = phbuf1;
+				break;
+			case 3:
+				o[0]->generateOutput(0, feed, phbuf2);
+				o[2]->generateOutput(0, 0, *del);
+				o[1]->generateOutput(phbuf2, 0, phbuf1);
+				o[3]->generateOutput(*del, 0, output);
+				*del = phbuf1;
+				break;
+			case 4:
+				o[0]->generateOutput(0, feed, phbuf1);
+				o[2]->generateOutput(0, 0, phbuf2);
+				o[1]->generateOutput(phbuf1, 0, output);
+				o[3]->generateOutput(phbuf2, 0, output);
+				*del = 0;
+				break;
+			case 5:
+				o[0]->generateOutput(0, feed, phbuf1);
+				o[2]->generateOutput(*del, 0, output);
+				o[1]->generateOutput(phbuf1, 0, output);
+				o[3]->generateOutput(phbuf1, 0, output);
+				*del = phbuf1;
+				break;
+			case 6:
+				o[0]->generateOutput(0, feed, phbuf1);
+				o[2]->generateOutput(0, 0, output);
+				o[1]->generateOutput(phbuf1, 0, output);
+				o[3]->generateOutput(0, 0, output);
+				*del = 0;
+				break;
+			case 7:
+				o[0]->generateOutput(0, feed, output);
+				o[2]->generateOutput(0, 0, output);
+				o[1]->generateOutput(0, 0, output);
+				o[3]->generateOutput(0, 0, output);
+				*del = 0;
+				break;
+			};
+
+			int32 finOut = (output << 2) / ((_numChan + _numSSG - 3) / 3);
+
+			if ((1 << i) & _volMaskA)
+				finOut = (finOut * _volumeA) / Audio::Mixer::kMaxMixerVolume;
+
+			if ((1 << i) & _volMaskB)
+				finOut = (finOut * _volumeB) / Audio::Mixer::kMaxMixerVolume;
+
+			if (_chanInternal[i].enableLeft)
+				*leftSample += finOut;
+
+			if (_chanInternal[i].enableRight)
+				*rightSample += finOut;
+		}
+	}
+}
+
+const uint32 TownsPC98_FmSynth::_adtStat[] = {
+	0x00010001, 0x00010001,	0x00010001, 0x01010001,
+	0x00010101, 0x00010101, 0x00010101, 0x01010101,
+	0x01010101, 0x01010101, 0x01010102, 0x01010102,
+	0x01020102, 0x01020102, 0x01020202, 0x01020202,
+	0x02020202, 0x02020202, 0x02020204, 0x02020204,
+	0x02040204, 0x02040204, 0x02040404, 0x02040404,
+	0x04040404, 0x04040404, 0x04040408, 0x04040408,
+	0x04080408, 0x04080408, 0x04080808, 0x04080808,
+	0x08080808, 0x08080808, 0x10101010, 0x10101010
+};
+
+const uint8 TownsPC98_FmSynth::_detSrc[] = {
+	0x02, 0x02, 0x02, 0x02, 0x02, 0x03, 0x03, 0x03,
+	0x04, 0x04, 0x04, 0x05, 0x05, 0x06, 0x06, 0x07,
+	0x08, 0x08, 0x08, 0x08, 0x01, 0x01,	0x01, 0x01,
+	0x02, 0x02, 0x02, 0x02, 0x02, 0x03,	0x03, 0x03,
+	0x04, 0x04, 0x04, 0x05, 0x05, 0x06, 0x06, 0x07,
+	0x08, 0x08, 0x09, 0x0a,	0x0b, 0x0c, 0x0d, 0x0e,
+	0x10, 0x10, 0x10, 0x10,	0x02, 0x02, 0x02, 0x02,
+	0x02, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x05,
+	0x05, 0x06,	0x06, 0x07, 0x08, 0x08, 0x09, 0x0a,
+	0x0b, 0x0c,	0x0d, 0x0e, 0x10, 0x11, 0x13, 0x14,
+	0x16, 0x16, 0x16, 0x16
+};
+
+const int TownsPC98_FmSynth::_ssgTables[] = {
+	0x01202A, 0x0092D2, 0x006B42, 0x0053CB, 0x003DF8, 0x003053, 0x0022DA, 0x001A8C,
+	0x00129B, 0x000DC1, 0x000963, 0x0006C9, 0x000463, 0x0002FA, 0x0001B6, 0x0000FB,
+	0x0193B6, 0x01202A, 0x00CDB1, 0x0092D2, 0x007D7D, 0x006B42, 0x005ECD, 0x0053CB,
+	0x00480F, 0x003DF8, 0x0036B9, 0x003053, 0x00290A, 0x0022DA, 0x001E6B, 0x001A8C,
+	0x001639, 0x00129B, 0x000FFF, 0x000DC1, 0x000B5D, 0x000963, 0x0007FB, 0x0006C9,
+	0x000575, 0x000463, 0x00039D, 0x0002FA, 0x000242, 0x0001B6, 0x00014C, 0x0000FB
+};
+
+const uint8 TownsPC98_FmSynth::_percussionData[] = {
+	0,24,1,192,1,216,2,128,4,88,23,64,27,152,1,128,29,24,2,128,31,152,0,128,136,128,128,128,0,136,97,103,153,139,34,163,72,195,27,69,1,154,137,35,8,51,169,122,164,75,133,203,81,146,168,121,185,68,202,8,33,237,49,177,12,133,140,17,160,42,161,10,0,137,176, 57,
+	233,41,160,136,235,65,177,137,128,26,164,28,3,157,51,137,1,152,113,161,40,146,115,192,56,5,169,66,161,56,1,50,145,59,39,168,97,1,160,57,7,153,50,153,32,2,25,129,32,20,186,66,129,24,153,164,142,130,169,153,26,242,138,217,9,128,204,58,209,172,40, 176, 141,
+	128,155,144,203,139,0,235,9,177,172,0,185,168,138,25,240,59,211,139,19,176,90,160,17,26,132,41,1,5,25,3,50,144,115,147,42,39,152,41,3,56,193,105,130,155,66,200,26,19,218,154,49,201,171,138,176,251,139,185,172,136,189,139,145,207,41,160,171,152, 186, 139,
+	186,141,128,218,171,51,217,170,56,163,12,4,155,81,147,42,37,152,32,54,136,49,50,48,37,32,69,0,17,50,50,83,2,16,68,20,8,66,4,154,84,145,24,33,24,32,17,18,145,32,22,168,49,163,1,33,50,184,115,129,25,66,1,24,67,2,80,35,40,53,2,65,51,19,67,37,0,52,35,49, 37,
+	34,49,37,17,52,17,35,35,35,34,32,49,33,152,34,145,24,24,128,138,128,184,9,177,171,168,185,155,152,172,155,186,172,185,172,155,186,173,153,202,187,185,202,170,171,202,186,169,170,170,171,139,154,171,153,154,169,10,168,154,128,168,154,0,153, 152, 136, 137,
+	128,153,0,152,8,128,137,0,136,136,8,9,8,9,8,24,153,128,136,153,144,0,161,138,1,169,136,128,160,168,152,153,138,137,154,153,153,154,153,170,168,170,185,168,169,154,169,171,153,169,170,153,152,154,153,137,169,137,136,144,152,144,128,128,144,129,129, 0, 33,
+	0,17,17,17,33,33,18,18,34,34,34,34,34,34,35,19,35,19,35,35,18,19,18,35,18,33,0,8,8,8,8,8,8,8,160,205,65,176,171,203,16,240,95,242,120,145,156,66,177,26,19,153,9,35,35,239,56,132,138,154,50,145,203,25,32,20,237,24,130,138,160,27,39,173,50,203,64,145, 139,
+	18,168,48,146,171,65,18,176,12,52,128,25,5,57,240,104,161,25,129,18,188,114,160,26,36,200,154,18,1,128,186,73,162,173,32,184,25,144,137,234,8,154,32,160,158,18,187,81,2,235,41,36,144,154,17,67,128,33,160,114,146,26,37,33,232,41,130,41,178,29,50, 251, 24,
+	1,153,138,160,76,179,155,11,0,38,252,41,146,41,178,27,193,43,39,170,136,17,129,8,49,233,48,129,11,6,26,130,136,128,64,1,248,105,145,9,16,144,140,5,25,168,16,186,48,5,171,217,57,134,171,8,34,188,20,203,41,6,155,161,89,164,140,2,136,51,202,41,131, 56, 144,
+	8,97,144,146,13,69,200,42,130,25,152,57,6,220,88,177,26,148,9,168,8,67,192,156,65,145,137,10,4,154,18,157,67,160,154,1,50,188,82,170,82,185,49,220,97,144,10,8,16,145,9,136,18,202,51,184,141,114,179,139,24,19,8,250,121,160,40,160,10,18,152,168,42,35, 216,
+	187,120,145,18,156,203,84,144,9,144,26,66,161,13,1,128,17,154,18,142,6,154,65,192,29,35,186,64,192,24,9,146,56,185,16,248,121,176,40,129,136,171,96,147,140,50,203,64,144,41,128,161,187,71,200,24,129,24,217,56,20,220,24,4,169,9,1,33,201,26,134,141,51,201,
+	25,16,33,235,32,144,33,153,169,99,160,11,3,136,58,210,33,203,48,163,17,219,128,140,38,8,184,141,50,131,159,33,128,153,25,18,153,88,242,43,3,9,136,157,53,202,40,145,25,2,204,105,146,156,66,152,8,153,33,128,129,136,153,50,186,55,188,51,249,64,178, 27, 128,
+	48,177,156,18,35,175,51,189,32,51,234,155,69,184,26,2,152,9,17,136,144,137,50,235,115,216,24,2,170,67,187,49,129,155,4,27,129,56,232,43,39,203,40,3,154,169,66,184,114,224,25,2,9,128,11,35,155,18,11,202,84,169,26,5,154,8,160,98,185,17,187,50, 23, 188, 33,
+	1,139,4,154,90,147,12,3,43,2,170,171,103,193,28,132,137,8,129,24,170,50,201,42,35,202,169,52,201,33,218,40,39,203,0,40,147,29,163,139,83,185,1,4,159,34,160,12,21,155,40,129,137,58,151,13,2,136,144,16,153,40,17,131,207,51,144,140,4,154,17,146,170,73, 163,
+	44,164,12,152,37,203,17,128,144,139,23,154,128,138,38,216,41,1,0,233,73,131,171,49,136,9,164,46,3,171,32,0,145,157,38,187,64,176,58,134,155,18,136,217,64,1,200,140,38,153,170,66,161,8,169,65,185,98,200,41,3,155,144,58,23,187,1,145,40,147,189,32, 68, 249,
+	1,112,255,199,195,19,108,76,187,247,247,183,40,168,212,245,199,227,68,45,59,10,145,177,198,24,130,76,26,193,180,129,0,162,42,160,199,162,0,16,152,137,132,168,195,130,162,181,227,163,161,179,211,180,179,164,128,162,161,194,164,179,40,153,195,213,146, 178,
+	147,176,50,186,161,196,151,58,16,28,162,160,131,122,155,33,241,146,128,40,26,128,154,36,170,89,59,9,24,144,77,161,8,177,112,139,33,232,148,24,41,61,9,26,162,32,30,58,153,32,59,73,59,11,79,137,57,9,49,30,24,153,131,25,106,61,153,73,28,56,27, 41, 137, 148,
+	76,43,74,58,13,161,3,171,149,32,77,10,74,42,168,16,0,123,138,129,162,178,225,50,140,161,0,147,10,129,41,244,210,165,1,152,24,162,184,166,32,144,59,216,132,177,8,145,67,143,146,160,183,162,130,24,192,32,225,146,144,33,44,73,30,129,137,32,76, 152, 25, 161,
+	2,154,32,177,132,232,2,136,210,128,149,177,32,58,27,168,225,133,8,44,107,136,25,136,17,26,58,46,16,11,145,17,144,79,136,144,136,145,152,33,31,162,130,200,82,153,74,137,147,26,0,13,133,170,149,16,192,0,178,0,128,152,182,150,9,16,9,137,33,59,63,10,152, 32,
+	179,192,5,154,228,182,145,130,144,42,128,242,2,136,41,168,17,76,57,31,129,136,17,47,8,41,138,32,138,123,59,58,10,136,161,4,46,25,145,136,129,25,56,28,91,41,154,108,9,16,44,24,137,48,15,0,194,162,41,194,56,241,163,146,0,139,7,186,150,129,152,1,208,33,176,
+	136,164,163,185,7,138,130,242,162,163,177,88,136,184,166,146,0,25,25,177,199,146,16,136,9,145,178,178,0,147,138,229,18,152,25,144,163,246,162,129,129,184,5,152,178,145,148,136,146,95,152,128,144,33,170,81,11,40,202,131,0,243,24,1,11,148,42, 24, 163, 140,
+	120,9,76,58,153,145,56,30,72,46,42,9,8,57,91,76,59,26,160,129,41,76,10,57,192,163,129,16,225,2,27,40,200,48,91,226,40,145,43,177,177,182,196,145,33,184,165,17,192,163,194,129,211,128,162,197,129,0,136,211,146,8,162,144,0,167,160,1,176,150,137,1, 24, 243,
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+	97,26,168,149,145,32,28,25,184,211,129,179,74,73,8,153,136,193,151,160,32,48,143,9,147,181,145,32,60,9,187,133,166,144,32,152,25,136,161,150,168,145,81,10,42,0,169,182,148,136,58,41,187,182,211,131,16,137,25,243,144,129,2,9,8,202,7,25,185,21,144,136,153,
+	65,184,137,56,151,10,153,49,16,145,14,56,176,11,192,19,89,91,44,168,147,2,8,147,63,27,1,136,229,129,73,26,136,26,137,81,170,147,77,72,12,42,42,192,24,104,91,26,27,65,177,27,32,41,60,14,136,17,170,150,129,24,58,11,16,251,162,19,57,31,0,152,129,145,17, 61,
+	14,1,129,27,129,66,169,178,74,12,11,19,198,145,75,33,138,174,133,1,184,57,40,136,169,20,1,60,174,20,154,201,67,26,162,151,42,16,138,59,130,204,20,169,59,180,59,114,184,56,178,242,128,130,43,8,194,3,229,144,33,185,144,34,181,145,168,17,149,153,74,35, 220,
+	129,128,1,88,59,75,225,136,130,168,17,144,12,151,8,25,179,8,1,240,16,8,25,145,211,41,130,138,115,169,160,163,168,84,154,74,0,170,144,211,149,2,30,128,137,9,149,1,144,58,60,57,153,178,150,17,29,27,74,25,195,152,56,15,1,25,26,152,149,80,153,57,73,140, 128,
+	160,144,113,27,56,28,25,4,42,44,137,60,171,130,50,240,8,5,139,145,1,105,137,200,80,137,145,146,178,179,160,46,16,240,195,131,128,144,24,164,198,128,0,136,137,131,194,165,177,2,161,147,11,144,188,181,148,144,23,0,28,224,128,131,192,32,1,224,1,168,132,145,
+	9,41,208,58,137,179,151,145,16,1,30,8,145,178,1,47,32,186,72,169,146,75,8,41,48,136,89,13,48,9,10,124,26,11,42,32,129,91,77,16,12,128,42,57,138,10,60,2,63,9,0,93,128,152,90,8,10,24,40,44,144,29,49,188,48,72,25,30,177,33,128,186,120,129,186,133, 152, 130,
+	24,156,51,154,8,226,2,56,155,2,179,233,167,128,24,129,176,136,151,8,184,0,33,224,152,21,177,24,10,163,16,250,17,130,171,83,137,136,37,12,56,242,154,17,160,145,82,13,3,201,128,18,137,24,162,63,162,8,107,178,128,57,158,32,24,200,18,0,106,154,73,16, 248, 8,
+	73,137,57,75,0,128,12,65,137,59,75,28,144,129,122,0,58,140,160,195,145,105,56,28,153,145,164,88,8,28,25,153,9,162,113,89,153,136,33,234,147,128,41,72,11,138,151,144,145,16,43,58,248,130,178,42,4,40,10,196,154,147,216,24,7,136,10,161,148,210,161, 98, 138,
+	137,128,146,176,33,105,27,43,163,49,185,6,10,136,43,67,174,161,162,151,137,1,64,200,193,24,64,200,56,145,242,24,57,137,1,128,3,162,175,80,128,162,152,25,58,175,17,17,0,200,64,168,162,91,1,154,44,211,177,35,64,160,161,144,4,241,41,209,162,25,1,3,242, 176,
+	134,153,42,41,136,135,154,2,130,46,41,161,153,180,145,34,26,46,18,242,137,146,129,25,128,11,151,161,40,179,27,122,168,59,137,181,50,172,36,56,15,9,129,137,128,75,2,58,12,52,141,8,24,58,153,157,122,145,9,1,80,27,184,32,74,219,50,57,168,153,180,48,28, 143,
+	131,144,178,65,13,48,168,162,147,155,121,9,170,5,16,153,21,29,144,161,91,0,184,57,128,137,17,159,88,178,128,105,152,9,162,33,164,141,88,178,224,1,0,16,27,185,150,161,9,4,139,16,128,160,194,144,65,180,46,40,136,27,135,160,16,44,57,145,236,2,195,40,75,177,
+	2,200,179,146,186,104,50,141,24,169,165,148,11,97,10,11,130,177,49,57,78,42,154,128,165,59,33,28,30,1,136,16,192,41,128,152,123,136,24,1,169,113,10,11,49,153,14,147,19,45,43,8,176,210,148,8,16,11,96,144,192,163,150,10,128,43,26,150,178,165,24,41,171, 18,
+	27,215,1,8,128,136,40,35,208,11,161,193,18,73,154,133,155,165,164,10,49,154,8,199,0,2,168,64,192,0,40,162,43,202,180,150,10,106,24,185,145,131,184,113,43,24,162,187,73,146,42,81,171,121,58,155,151,16,43,32,31,9,160,146,17,136,94,10,24,145,25, 9, 130, 59,
+	65,13,91,25,169,146,176,112,42,59,16,217,130,20,13,25,9,40,161,138,68,169,154,18,62,154,180,145,135,152,56,58,155,165,211,8,40,42,10,198,1,2,184,57,184,224,51,154,27,134,168,19,202,73,75,184,35,176,75,24,25,209,51,157,19,30,184,179,3,33,148,45, 232, 146,
+	129,168,41,32,170,149,193,35,136,16,50,191,56,146,173,149,16,24,41,30,129,168,209,3,57,31,0,16,176,147,41,152,10,17,181,14,40,144,49,170,75,97,141,25,162,146,72,177,92,137,137,19,137,153,113,154,2,41,60,129,217,2,211,152,73,42,193,197,146,147, 10, 59, 0,
+	192,196,132,41,160,25,88,169,16,40,241,1,153,81,28,10,147,161,209,88,75,9,161,162,180,16,43,57,235,33,56,156,129,144,2,135,31,128,145,136,163,56,59,154,57,167,160,105,137,0,138,163,3,41,47,185,211,131,41,41,60,139,182,146,16,16,43,242,144,145,129,16,179,
+	183,1,26,9,147,240,131,160,91,74,152,184,166,178,33,140,9,4,162,233,34,136,129,144,163,60,142,144,149,128,33,73,13,161,194,131,0,26,56,142,128,163,128,1,233,56,209,41,145,194,147,179,149,64,30,8,128,216,18,24,43,43,32,153,25,74,109,137,153,48,8,137, 122,
+	25,144,26,43,59,30,33,41,27,24,96,153,160,50,76,27,47,152,145,163,73,40,14,152,131,176,74,90,8,8,200,67,155,154,50,49,155,28,124,177,152,1,2,17,62,138,180,176,4,25,9,177,245,162,129,40,25,176,164,130,172,4,8,181,194,49,11,168,154,165,133,152,40,136, 226,
+	179,19,26,185,16,167,194,16,25,57,243,136,147,1,31,25,184,132,160,33,62,138,129,130,41,121,137,153,145,26,17,107,136,179,1,61,60,26,162,168,148,64,31,25,32,168,152,64,31,137,8,129,33,62,24,137,8,16,59,47,153,33,162,91,59,41,170,145,5,43,60,41,13,178,134,
+	57,153,12,194,227,8,2,128,57,208,162,19,216,32,178,25,128,160,48,194,195,37,155,10,33,251,163,146,16,136,12,166,195,160,148,129,176,147,178,150,160,72,162,162,193,162,60,200,145,5,144,25,122,216,129,161,130,0,10,73,1,241,2,9,168,33,13,161,165,24,64, 203,
+	50,1,14,9,9,129,161,106,33,27,13,164,128,40,41,107,169,160,33,136,60,92,168,152,2,91,57,176,129,0,144,47,136,162,164,128,80,43,154,179,213,130,74,27,0,145,145,167,58,59,160,9,26,76,8,171,5,49,28,44,169,162,183,130,72,28,144,179,228,2,25,26,129, 186, 151,
+	1,75,128,169,17,178,15,57,170,16,166,16,57,8,139,162,181,1,8,152,164,181,41,81,43,10,242,145,57,139,89,8,193,18,154,32,176,10,165,129,137,147,177,134,0,25,25,201,147,227,129,72,59,185,167,128,129,160,91,25,176,130,147,145,9,160,5,202,17,16, 186, 136, 37,
+	177,56,76,42,169,186,48,9,145,57,24,128,41,169,134,137,145,147,28,41,168,131,228,32,27,9,60,129,178,64,60,45,25,9,24,152,49,31,136,57,42,0,25,12,181,18,153,57,96,169,177,132,153,123,9,152,129,177,17,74,43,24,169,128,121,137,25,1,139,96,42,10,146,178, 18,
+	44,29,1,161,164,146,31,137,146,177,19,1,10,26,209,165,146,43,40,138,240,130,18,144,25,40,212,1,58,11,152,196,147,10,74,26,152,225,130,146,58,60,210,145,16,148,16,185,192,18,44,42,57,199,162,1,9,87,47,186,215,231,197,179,180,195,212,164,32,59,92, 126, 62,
+	41,59,76,59,60,168,179,213,197,163,72,44,25,74,126,127,127,79,26,177,148,90,27,225,247,165,0,152,147,123,138,211,164,72,126,127,46,210,196,163,228,215,64,11,210,180,1,8,58,153,1,224,149,57,76,27,24,76,42,43,136,128,243,179,130,106,60,42,42,92,28,243,231,
+	147,24,57,44,58,94,45,8,57,139,214,148,40,77,26,9,16,10,144,64,62,43,25,123,59,138,162,48,63,26,41,92,60,43,176,3,59,232,214,164,16,75,75,76,60,153,179,33,62,26,136,40,75,169,197,163,129,57,60,59,75,138,145,64,63,138,179,1,42,136,90,43,176,214,180,1, 25,
+	152,195,129,129,106,76,60,137,145,178,2,25,10,228,130,57,59,44,41,154,165,105,76,44,144,16,76,26,41,76,26,152,1,58,26,9,193,165,16,92,26,41,77,59,76,76,60,26,136,161,130,152,195,163,211,146,0,57,11,211,130,8,25,40,62,153,162,17,109,60,153,146,40, 76, 60,
+	26,160,179,211,163,32,60,42,153,179,194,199,130,24,58,43,58,27,128,161,195,129,226,196,147,90,59,75,44,136,128,145,160,148,123,59,42,26,41,26,57,27,192,215,147,57,59,27,161,145,213,130,106,76,43,9,144,162,129,177,181,130,136,194,146,40,10,129,25,210,146,
+	178,197,196,179,196,130,8,41,9,144,178,130,209,182,17,92,43,176,147,144,212,130,136,0,177,130,73,62,10,161,130,91,75,59,43,57,46,25,41,77,10,177,164,16,26,136,210,197,179,130,128,57,77,43,25,75,10,227,179,180,179,146,128,57,185,183,163,145,0,8,8,10, 119,
+	114,120,16,210,244,60,28,41,25,152,149,56,161,35,44,89,27,24,136,24,164,211,17,233,176,136,192,129,179,17,17,25,0,10,46,160,132,49,66,24,132,177,147,193,56,72,26,29,232,168,176,12,137,41,139,147,9,1,41,15,91,136,35,148,21,18,48,40,1,168,167,144,0,42,172,
+	177,204,193,155,232,152,152,26,152,41,146,17,6,4,65,34,35,135,4,16,32,9,24,186,176,0,250,153,204,186,173,154,153,177,3,65,41,34,145,134,35,65,98,49,50,50,2,33,169,138,155,175,170,172,204,192,138,234,136,155,136,10,32,18,5,52,48,24,162,17,67,54,66,51, 34,
+	131,184,174,234,153,10,9,40,0,152,251,168,142,154,9,16,33,49,33,128,154,170,156,34,54,54,33,68,0,1,136,201,137,26,88,48,35,99,8,152,189,189,187,155,171,16,24,130,145,188,175,203,144,49,115,67,67,50,19,2,1,0,0,130,131,1,136,206,216,188,203, 204, 187, 187,
+	156,153,0,0,51,17,34,24,112,20,69,67,67,34,19,0,136,169,185,137,186,232,185,219,201,203,187,173,170,154,153,129,131,6,2,19,49,49,21,65,19,53,51,83,34,16,168,201,154,172,156,138,0,1,24,201,233,186,204,186,171,137,3,37,48,24,128,201,202,202,129,17, 48, 21,
+	22,20,19,19,32,16,2,66,52,68,4,3,1,203,235,188,189,186,171,153,137,153,170,219,170,140,9,17,53,115,50,52,67,51,51,51,17,130,0,145,154,169,188,236,187,190,203,187,172,171,138,136,17,33,18,2,34,98,98,50,50,52,66,34,35,2,19,24,169,203,203,188,219, 169, 154,
+	9,137,171,204,188,203,184,136,34,83,50,33,153,184,170,170,152,40,57,19,36,50,50,18,35,17,2,49,49,66,66,66,34,17,168,233,202,202,170,171,170,186,219,203,188,188,154,138,25,33,68,52,68,67,67,36,51,36,18,17,17,136,8,170,176,202,188,206,202,171,172,186, 169,
+	153,8,25,144,128,1,34,68,52,68,51,52,34,49,18,34,2,144,136,155,140,187,186,186,154,154,185,185,153,9,9,0,24,0,128,144,168,169,170,154,154,153,9,8,16,8,0,144,19,35,68,51,52,67,51,66,34,50,33,1,144,185,186,172,204,187,188,173,172,186,172,186, 154, 138, 41,
+	33,52,53,83,50,51,52,52,37,34,34,18,16,144,152,154,187,219,203,188,173,186,186,186,170,154,153,138,144,16,17,67,82,50,51,21,34,19,33,2,18,33,1,8,153,169,153,153,136,128,0,136,154,153,153,8,8,1,16,0,169,170,187,171,171,154,153,153,152,153,153,0,16,51, 83,
+	66,50,67,50,51,67,51,52,35,18,136,186,219,187,189,186,171,187,173,187,188,187,203,138,9,16,33,50,52,53,67,67,147,8,128,128,128,128,128,128,128,128,0,240,255,55,232,23,220,0,148,1,9,18,148,10,189,32,163,62,160,5,137,12,149,42,153,144,34,42,8, 1, 138, 181,
+	45,136,18,144,105,138,1,160,14,128,132,145,186,37,138,41,192,48,145,46,160,33,44,24,225,16,13,132,136,137,16,148,25,170,194,82,152,136,91,24,42,169,33,233,131,179,24,185,149,16,57,172,164,18,10,211,160,147,211,33,138,243,129,16,41,193,0,43, 132, 155, 73,
+	58,145,244,145,43,35,9,171,16,110,25,8,28,74,162,128,26,27,82,45,136,153,18,8,136,8
+};
diff --git a/sound/softsynth/fmtowns_pc98/towns_pc98_fmsynth.h b/sound/softsynth/fmtowns_pc98/towns_pc98_fmsynth.h
new file mode 100644
index 0000000000..1f9d610d9d
--- /dev/null
+++ b/sound/softsynth/fmtowns_pc98/towns_pc98_fmsynth.h
@@ -0,0 +1,171 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef TOWNS_PC98_FMSYNTH_H
+#define TOWNS_PC98_FMSYNTH_H
+
+#include "sound/audiostream.h"
+#include "sound/mixer.h"
+#include "common/list.h"
+
+class TownsPC98_FmSynthOperator;
+class TownsPC98_FmSynthSquareSineSource;
+class TownsPC98_FmSynthPercussionSource;
+
+enum EnvelopeState {
+	kEnvReady,
+	kEnvAttacking,
+	kEnvDecaying,
+	kEnvSustaining,
+	kEnvReleasing
+};
+
+class TownsPC98_FmSynth : public Audio::AudioStream {
+public:
+	enum EmuType {
+		kTypeTowns,
+		kType26,
+		kType86
+	};
+
+	TownsPC98_FmSynth(Audio::Mixer *mixer, EmuType type);
+	virtual ~TownsPC98_FmSynth();
+
+	virtual bool init();
+	virtual void reset();
+
+	void writeReg(uint8 part, uint8 regAddress, uint8 value);
+
+	// AudioStream interface
+	int readBuffer(int16 *buffer, const int numSamples);
+	bool isStereo() const { return true; }
+	bool endOfData() const { return false; }
+	int getRate() const { return _mixer->getOutputRate(); }
+
+protected:
+	// Implement this in your inherited class if your driver generates
+	// additional output that has to be inserted into the buffer.
+	virtual void nextTickEx(int32 *buffer, uint32 bufferSize) {}
+
+	void toggleRegProtection(bool prot) { _regProtectionFlag = prot; }
+	uint8 readSSGStatus();
+
+	virtual void timerCallbackA() = 0;
+	virtual void timerCallbackB() = 0;
+
+	// The audio driver can store and apply two different audio settings
+	// (usually for music and sound effects). The channel mask will determine
+	// which channels get effected by the setting. The first bits will be
+	// the normal fm channels, the next bits the ssg channels and the final
+	// bit the rhythm channel.
+	void setVolumeIntern(int volA, int volB);
+	void setVolumeChannelMasks(int channelMaskA, int channelMaskB);
+
+	const int _numChan;
+	const int _numSSG;
+	const bool _hasPercussion;
+
+	Common::Mutex _mutex;
+private:
+	void generateTables();
+	void nextTick(int32 *buffer, uint32 bufferSize);
+	void generateOutput(int32 &leftSample, int32 &rightSample, int32 *del, int32 *feed);
+
+	struct ChanInternal {
+		ChanInternal() {
+			memset(this, 0, sizeof(ChanInternal));
+		}
+
+		~ChanInternal() {
+			for (uint i = 0; i < ARRAYSIZE(opr); ++i)
+				delete opr[i];
+		}
+
+		void ampModSensitivity(uint32 value) { ampModSvty = (1 << (3 - value)) - (((value >> 1) & 1) | (value & 1)); }
+		void frqModSensitivity(uint32 value) { frqModSvty = value << 5; }
+
+		uint16 frqTemp;
+		bool enableLeft;
+		bool enableRight;
+		bool updateEnvelopeParameters;
+		int32 feedbuf[3];
+		uint8 algorithm;
+
+		uint32 ampModSvty;
+		uint32 frqModSvty;
+
+
+		TownsPC98_FmSynthOperator *opr[4];
+	};
+
+	TownsPC98_FmSynthSquareSineSource *_ssg;
+	TownsPC98_FmSynthPercussionSource *_prc;
+	ChanInternal *_chanInternal;
+
+	uint8 *_oprRates;
+	uint8 *_oprRateshift;
+	uint8 *_oprAttackDecay;
+	uint32 *_oprFrq;
+	uint32 *_oprSinTbl;
+	int32 *_oprLevelOut;
+	int32 *_oprDetune;
+
+	bool _regProtectionFlag;
+
+	typedef void (TownsPC98_FmSynth::*ChipTimerProc)();
+
+	struct ChipTimer {
+		bool enabled;
+		uint16 value;
+
+		int32 smpTillCb;
+		uint32 smpTillCbRem;
+		int32 smpPerCb;
+		uint32 smpPerCbRem;
+
+		ChipTimerProc cb;
+	};
+
+	ChipTimer _timers[2];
+
+	int _volMaskA, _volMaskB;
+	uint16 _volumeA, _volumeB;
+
+	const float _baserate;
+	uint32 _timerbase;
+
+	Audio::Mixer *_mixer;
+	Audio::SoundHandle _soundHandle;
+
+	static const uint8 _percussionData[];
+	static const uint32 _adtStat[];
+	static const uint8 _detSrc[];
+	static const int _ssgTables[];
+
+	bool _ready;
+};
+
+#endif
+