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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
PCD3311 DTMF/modem/musical tone generator emulation
**********************************************************************/
#include "emu.h"
#include "pcd3311.h"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(PCD3311, pcd3311_device, "pcd3311", "PCD3311")
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// pcd3311_device - constructor
//-------------------------------------------------
pcd3311_device::pcd3311_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, PCD3311, tag, owner, clock),
device_sound_interface(mconfig, *this)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void pcd3311_device::device_start()
{
save_item(NAME(m_a0));
save_item(NAME(m_mode));
save_item(NAME(m_strobe));
save_item(NAME(m_data));
}
//-------------------------------------------------
// sound_stream_update - handle update requests for
// our sound stream
//-------------------------------------------------
void pcd3311_device::sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs)
{
outputs[0].fill(0);
}
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