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// license:???
// copyright-holders:Jarek Burczynski, Hiromitsu Shioya
#pragma once
#ifndef __MSM5232_H__
#define __MSM5232_H__
#define MCFG_MSM5232_SET_CAPACITORS(_a, _b, _c, _d, _e, _f, _g, _h) \
msm5232_device::static_set_capacitors(*device, _a, _b, _c, _d, _e, _f, _g, _h);
#define MCFG_MSM5232_GATE_HANDLER_CB(_devcb) \
devcb = &msm5232_device::set_gate_handler_callback(*device, DEVCB_##_devcb);
struct VOICE {
UINT8 mode;
int TG_count_period;
int TG_count;
UINT8 TG_cnt; /* 7 bits binary counter (frequency output) */
UINT8 TG_out16; /* bit number (of TG_cnt) for 16' output */
UINT8 TG_out8; /* bit number (of TG_cnt) for 8' output */
UINT8 TG_out4; /* bit number (of TG_cnt) for 4' output */
UINT8 TG_out2; /* bit number (of TG_cnt) for 2' output */
int egvol;
int eg_sect;
int counter;
int eg;
UINT8 eg_arm; /* attack/release mode */
double ar_rate;
double dr_rate;
double rr_rate;
int pitch; /* current pitch data */
int GF;
};
class msm5232_device : public device_t,
public device_sound_interface
{
public:
msm5232_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
~msm5232_device() {}
static void static_set_capacitors(device_t &device, double cap1, double cap2, double cap3, double cap4, double cap5, double cap6, double cap7, double cap8);
template<class _Object> static devcb_base &set_gate_handler_callback(device_t &device, _Object object) { return downcast<msm5232_device &>(device).m_gate_handler_cb.set_callback(object); }
DECLARE_WRITE8_MEMBER( write );
void set_clock(int clock);
protected:
// device-level overrides
virtual void device_start();
virtual void device_stop();
virtual void device_reset();
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
private:
// internal state
sound_stream *m_stream;
VOICE m_voi[8];
UINT32 m_EN_out16[2]; /* enable 16' output masks for both groups (0-disabled ; ~0 -enabled) */
UINT32 m_EN_out8[2]; /* enable 8' output masks */
UINT32 m_EN_out4[2]; /* enable 4' output masks */
UINT32 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 m_control1;
UINT8 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_capacity[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);
void postload();
};
extern const device_type MSM5232;
#endif /* __MSM5232_H__ */
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