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// license:BSD-3-Clause
// copyright-holders:R. Belmont
/* C140.h */
#ifndef MAME_SOUND_C140_H
#define MAME_SOUND_C140_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> c140_device
class c140_device : public device_t,
public device_sound_interface,
public device_rom_interface
{
public:
enum class C140_TYPE
{
SYSTEM2,
SYSTEM21,
ASIC219
};
c140_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// configuration
void set_bank_type(C140_TYPE bank) { m_banking_type = bank; }
DECLARE_READ8_MEMBER( c140_r );
DECLARE_WRITE8_MEMBER( c140_w );
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_clock_changed() override;
virtual void rom_bank_updated() 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:
static constexpr unsigned MAX_VOICE = 24;
struct C140_VOICE
{
C140_VOICE() { }
int32_t ptoffset = 0;
int32_t pos = 0;
int32_t key = 0;
//--work
int32_t lastdt = 0;
int32_t prevdt = 0;
int32_t dltdt = 0;
//--reg
int32_t rvol = 0;
int32_t lvol = 0;
int32_t frequency = 0;
int32_t bank = 0;
int32_t mode = 0;
int32_t sample_start = 0;
int32_t sample_end = 0;
int32_t sample_loop = 0;
};
void init_voice( C140_VOICE *v );
long find_sample(long adrs, long bank, int voice);
int m_sample_rate;
sound_stream *m_stream;
C140_TYPE m_banking_type;
/* internal buffers */
std::unique_ptr<int16_t[]> m_mixer_buffer_left;
std::unique_ptr<int16_t[]> m_mixer_buffer_right;
int m_baserate;
uint8_t m_REG[0x200];
int16_t m_pcmtbl[8]; //2000.06.26 CAB
C140_VOICE m_voi[MAX_VOICE];
};
DECLARE_DEVICE_TYPE(C140, c140_device)
#endif // MAME_SOUND_C140_H
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