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#pragma once
#ifndef __K005289_H__
#define __K005289_H__
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_K005289_ADD(_tag, _clock) \
MCFG_DEVICE_ADD(_tag, K005289, _clock)
#define MCFG_K005289_REPLACE(_tag, _clock) \
MCFG_DEVICE_REPLACE(_tag, K005289, _clock)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
struct k005289_sound_channel
{
int frequency;
int counter;
int volume;
const unsigned char *wave;
};
// ======================> k005289_device
class k005289_device : public device_t,
public device_sound_interface
{
public:
k005289_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
~k005289_device() { }
protected:
// device-level overrides
virtual void device_start();
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
public:
DECLARE_WRITE8_MEMBER( k005289_control_A_w );
DECLARE_WRITE8_MEMBER( k005289_control_B_w );
DECLARE_WRITE8_MEMBER( k005289_pitch_A_w );
DECLARE_WRITE8_MEMBER( k005289_pitch_B_w );
DECLARE_WRITE8_MEMBER( k005289_keylatch_A_w );
DECLARE_WRITE8_MEMBER( k005289_keylatch_B_w );
private:
void make_mixer_table(int voices);
void k005289_recompute();
private:
k005289_sound_channel m_channel_list[2];
const unsigned char *m_sound_prom;
sound_stream *m_stream;
int m_mclock;
int m_rate;
/* mixer tables and internal buffers */
INT16 *m_mixer_table;
INT16 *m_mixer_lookup;
short *m_mixer_buffer;
int m_k005289_A_frequency;
int m_k005289_B_frequency;
int m_k005289_A_volume;
int m_k005289_B_volume;
int m_k005289_A_waveform;
int m_k005289_B_waveform;
int m_k005289_A_latch;
int m_k005289_B_latch;
};
extern const device_type K005289;
#endif /* __K005289_H__ */
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