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// license:BSD-3-Clause
// copyright-holders:R. Belmont
/***************************************************************************
vrc6.h
Konami VRC6 add-on sound
***************************************************************************/
#pragma once
#ifndef __VRC6_H__
#define __VRC6_H__
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_VRC6_ADD(_tag, _clock) \
MCFG_DEVICE_ADD(_tag, VRC6, _clock)
#define MCFG_VRC6_REPLACE(_tag, _clock) \
MCFG_DEVICE_REPLACE(_tag, VRC6, _clock)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> vrc6snd_device
class vrc6snd_device : public device_t, public device_sound_interface
{
public:
// construction/destruction
vrc6snd_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
DECLARE_WRITE8_MEMBER(write);
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
private:
UINT8 m_freqctrl, m_pulsectrl[2], m_sawrate;
UINT8 m_pulsefrql[2], m_pulsefrqh[2], m_pulseduty[2];
UINT8 m_sawfrql, m_sawfrqh, m_sawclock, m_sawaccum;
UINT16 m_ticks[3];
UINT8 m_output[3];
sound_stream *m_stream;
};
// device type definition
extern const device_type VRC6;
#endif /* __VRC6_H__ */
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