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// license:BSD-3-Clause
// copyright-holders:R. Belmont
/*********************************************************************
a2sam.c
Implementation of the S.A.M. "Software Automated Mouth" card
*********************************************************************/
#include "emu.h"
#include "a2sam.h"
#include "sound/volt_reg.h"
#include "speaker.h"
/***************************************************************************
PARAMETERS
***************************************************************************/
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
DEFINE_DEVICE_TYPE(A2BUS_SAM, a2bus_sam_device, "a2sam", "Don't Ask Software S.A.M.")
/***************************************************************************
FUNCTION PROTOTYPES
***************************************************************************/
//-------------------------------------------------
// device_add_mconfig - add device configuration
//-------------------------------------------------
MACHINE_CONFIG_MEMBER( a2bus_sam_device::device_add_mconfig )
MCFG_SPEAKER_STANDARD_MONO("speaker")
MCFG_SOUND_ADD("dac", DAC_8BIT_R2R, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.5) // unknown DAC
MCFG_DEVICE_ADD("vref", VOLTAGE_REGULATOR, 0) MCFG_VOLTAGE_REGULATOR_OUTPUT(5.0)
MCFG_SOUND_ROUTE_EX(0, "dac", 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE_EX(0, "dac", -1.0, DAC_VREF_NEG_INPUT)
MACHINE_CONFIG_END
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
a2bus_sam_device::a2bus_sam_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, A2BUS_SAM, tag, owner, clock),
device_a2bus_card_interface(mconfig, *this),
m_dac(*this, "dac")
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void a2bus_sam_device::device_start()
{
// set_a2bus_device makes m_slot valid
set_a2bus_device();
}
void a2bus_sam_device::device_reset()
{
}
void a2bus_sam_device::write_c0nx(address_space &space, uint8_t offset, uint8_t data)
{
m_dac->write(data);
}
bool a2bus_sam_device::take_c800()
{
return false;
}
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