// 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