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// license:BSD-3-Clause
// copyright-holders:R. Belmont, Tomasz Slanina, David Haywood
#ifndef MAME_SOUND_ST0016_H
#define MAME_SOUND_ST0016_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> st0016_device
class st0016_device : public device_t, public device_sound_interface, public device_memory_interface
{
public:
st0016_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
u8 snd_r(offs_t offset);
void snd_w(offs_t offset, u8 data);
protected:
// device-level overrides
virtual void device_start() 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;
// device_memory_interface configuration
virtual space_config_vector memory_space_config() const override;
address_space_config m_data_config;
private:
struct voice_t
{
voice_t(memory_access<21, 0, 0, ENDIANNESS_LITTLE>::cache &host) : m_host(host) { }
bool update();
u8 reg_r(offs_t offset);
void reg_w(offs_t offset, u8 data, int voice);
memory_access<21, 0, 0, ENDIANNESS_LITTLE>::cache &m_host; // host device
u8 m_regs[0x20] = {0}; // 32 registers per voices
u32 m_start = 0; // Start position
u32 m_end = 0; // End position
u32 m_lpstart = 0; // Loop start position
u32 m_lpend = 0; // Loop end position
u16 m_freq = 0; // Frequency (.16 fixed point)
char m_vol_l = 0; // Left volume
char m_vol_r = 0; // Right volume
u8 m_flags = 0; // Flags
u32 m_pos = 0; // Current position
u32 m_frac = 0; // Position fraction
bool m_lponce = false; // Is looped once?
s16 m_out = 0; // output value
};
memory_access<21, 0, 0, ENDIANNESS_LITTLE>::cache m_cache;
sound_stream *m_stream;
voice_t m_voice[8]; // 8 Voice engines
};
DECLARE_DEVICE_TYPE(ST0016, st0016_device)
#endif // MAME_SOUND_ST0016_H
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