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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
atarisac.h
Functions to emulate the Atari "SAC" audio board
***************************************************************************/
#ifndef MAME_AUDIO_ATARI_SAC_H
#define MAME_AUDIO_ATARI_SAC_H
#pragma once
#include "audio/atarijsa.h"
#include "machine/gen_latch.h"
#include "sound/dac.h"
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
DECLARE_DEVICE_TYPE(ATARI_SAC, atari_sac_device)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> atari_sac_device
class atari_sac_device : public atari_jsa_base_device
{
public:
// construction/destruction
atari_sac_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
protected:
// device level overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual ioport_constructor device_input_ports() const override;
virtual void device_start() override;
virtual void device_reset() override;
// internal helpers
virtual void update_all_volumes() override;
private:
// read/write handlers
u8 rdio_r();
void wrio_w(u8 data);
u8 pstat_r();
u16 rdp8_r();
void dac_w(offs_t offset, u16 data);
// misc. helpers
INTERRUPT_GEN_MEMBER(int_10k_gen);
// address maps
void sac_6502_map(address_map &map);
void sac_68k_map(address_map &map);
// devices
required_device<cpu_device> m_daccpu;
required_device<generic_latch_8_device> m_datin;
required_device<generic_latch_8_device> m_datout;
required_device<dac_word_interface> m_rdac;
required_device<dac_word_interface> m_ldac;
required_ioport m_inputs;
// internal state
bool m_68k_reset;
bool m_10k_int;
};
#endif // MAME_AUDIO_ATARI_SAC_H
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