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// license:BSD-3-Clause
// copyright-holders:Eugene Sandulenko
#ifndef MAME_AUDIO_TIAMC1_H
#define MAME_AUDIO_TIAMC1_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> tiamc1_sound_device
class tiamc1_sound_device : public device_t, public device_sound_interface
{
public:
tiamc1_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
DECLARE_WRITE8_MEMBER( tiamc1_timer0_w );
DECLARE_WRITE8_MEMBER( tiamc1_timer1_w );
DECLARE_WRITE8_MEMBER( tiamc1_timer1_gate_w );
protected:
// device-level overrides
virtual void device_start() override;
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override;
private:
struct timer8253chan
{
timer8253chan() { }
uint16_t count = 0;
uint16_t cnval = 0;
uint8_t bcdMode = 0;
uint8_t cntMode = 0;
uint8_t valMode = 0;
uint8_t gate = 0;
uint8_t output = 0;
uint8_t loadCnt = 0;
uint8_t enable = 0;
};
struct timer8253struct
{
struct timer8253chan channel[3];
};
void timer8253_reset(struct timer8253struct *t);
void timer8253_tick(struct timer8253struct *t,int chn);
void timer8253_wr(struct timer8253struct *t, int reg, uint8_t val);
char timer8253_get_output(struct timer8253struct *t, int chn);
void timer8253_set_gate(struct timer8253struct *t, int chn, uint8_t gate);
sound_stream *m_channel;
int m_timer1_divider;
timer8253struct m_timer0;
timer8253struct m_timer1;
};
DECLARE_DEVICE_TYPE(TIAMC1, tiamc1_sound_device)
#endif // MAME_AUDIO_TIAMC1_H
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