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/***************************************************************************
ymz770.h
***************************************************************************/
#pragma once
#ifndef __YMZ770_H__
#define __YMZ770_H__
//**************************************************************************
// CONSTANTS
//**************************************************************************
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_YMZ770_ADD(_tag, _clock) \
MCFG_DEVICE_ADD(_tag, YMZ770, _clock)
#define MCFG_YMZ770_REPLACE(_tag, _clock) \
MCFG_DEVICE_REPLACE(_tag, YMZ770, _clock)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// forward definition
class mpeg_audio;
// ======================> ymz770_device
class ymz770_device : public device_t, public device_sound_interface
{
struct ymz_channel
{
UINT8 phrase;
UINT8 pan;
UINT8 volume;
UINT8 control;
bool is_playing, last_block;
mpeg_audio *decoder;
INT16 output_data[1152];
int output_remaining;
int output_ptr;
int pptr;
UINT8 sequence;
UINT8 seqcontrol;
UINT8 seqdelay;
UINT8 *seqdata;
bool is_seq_playing;
};
public:
// construction/destruction
ymz770_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
DECLARE_WRITE8_MEMBER(write);
sound_stream *m_stream;
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
void internal_reg_write(UINT8 reg, UINT8 data);
// data
UINT8 m_cur_reg;
UINT8 m_mute; // mute chip
UINT8 m_doen; // digital output enable
UINT8 m_vlma; // overall AAM volume
UINT8 m_bsl; // boost level
UINT8 m_cpl; // clip limiter
UINT8 *m_rom_base;
int m_rom_size;
ymz_channel m_channels[8];
};
// device type definition
extern const device_type YMZ770;
#endif /* __ymz770_H__ */
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