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// license:GPL-2.0+
// copyright-holders:Jarek Burczynski, Hiromitsu Shioya
#ifndef MAME_SOUND_MSM5232_H
#define MAME_SOUND_MSM5232_H
#pragma once
class msm5232_device : public device_t, public device_sound_interface
{
public:
msm5232_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
void set_capacitors(double cap1, double cap2, double cap3, double cap4, double cap5, double cap6, double cap7, double cap8);
auto gate() { return m_gate_handler_cb.bind(); }
void write(offs_t offset, uint8_t data);
void set_clock(int clock);
protected:
// device-level overrides
virtual void device_start() override ATTR_COLD;
virtual void device_stop() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
virtual void device_post_load() 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:
struct VOICE {
uint8_t mode;
int TG_count_period;
int TG_count;
uint8_t TG_cnt; // 7 bits binary counter (frequency output)
uint8_t TG_out16; // bit number (of TG_cnt) for 16' output
uint8_t TG_out8; // bit number (of TG_cnt) for 8' output
uint8_t TG_out4; // bit number (of TG_cnt) for 4' output
uint8_t TG_out2; // bit number (of TG_cnt) for 2' output
int egvol;
int eg_sect;
int counter;
int eg;
uint8_t eg_arm; // attack/release mode
double ar_rate;
double dr_rate;
double rr_rate;
int pitch; // current pitch data
int GF;
};
// internal state
sound_stream *m_stream;
VOICE m_voi[8];
uint32_t m_EN_out16[2]; // enable 16' output masks for both groups (0-disabled ; ~0 -enabled)
uint32_t m_EN_out8[2]; // enable 8' output masks
uint32_t m_EN_out4[2]; // enable 4' output masks
uint32_t m_EN_out2[2]; // enable 2' output masks
int m_noise_cnt;
int m_noise_step;
int m_noise_rng;
int m_noise_clocks; // number of the noise_rng (output) level changes
unsigned int m_UpdateStep;
// rate tables
double m_ar_tbl[8];
double m_dr_tbl[16];
uint8_t m_control1;
uint8_t m_control2;
int m_gate; // current state of the GATE output
int m_chip_clock; // chip clock in Hz
int m_rate; // sample rate in Hz
double m_external_capacitance[8]; // in Farads, eg 0.39e-6 = 0.36 uF (microFarads)
devcb_write_line m_gate_handler_cb;// callback called when the GATE output pin changes state
void init_tables();
void init_voice(int i);
void gate_update();
void init(int clock, int rate);
void EG_voices_advance();
void TG_group_advance(int groupidx);
};
DECLARE_DEVICE_TYPE(MSM5232, msm5232_device)
#endif // MAME_SOUND_MSM5232_H
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