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// license:BSD-3-Clause
// copyright-holders:Bryan McPhail
#ifndef MAME_SOUND_K005289_H
#define MAME_SOUND_K005289_H
#pragma once
// ======================> 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_t clock);
void control_A_w(uint8_t data);
void control_B_w(uint8_t data);
void ld1_w(offs_t offset, uint8_t data);
void ld2_w(offs_t offset, uint8_t data);
void tg1_w(uint8_t data);
void tg2_w(uint8_t data);
protected:
// device-level overrides
virtual void device_start() override;
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs) override;
private:
void make_mixer_table(int voices);
required_region_ptr<uint8_t> m_sound_prom;
sound_stream *m_stream;
int m_rate;
/* mixer tables and internal buffers */
std::unique_ptr<stream_buffer::sample_t []> m_mixer_table;
stream_buffer::sample_t *m_mixer_lookup;
std::vector<short> m_mixer_buffer;
uint32_t m_counter[2];
uint16_t m_frequency[2];
uint16_t m_freq_latch[2];
uint16_t m_waveform[2];
uint8_t m_volume[2];
};
DECLARE_DEVICE_TYPE(K005289, k005289_device)
#endif // MAME_SOUND_K005289_H
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