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// license:BSD-3-Clause
// copyright-holders:etabeta
#ifndef __O2_VOICE_H
#define __O2_VOICE_H
#include "slot.h"
#include "rom.h"
#include "sound/sp0256.h"
// ======================> o2_voice_device
class o2_voice_device : public o2_rom_device
{
public:
// construction/destruction
o2_voice_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// device-level overrides
virtual void device_start();
virtual void device_reset() {}
virtual machine_config_constructor device_mconfig_additions() const;
virtual const rom_entry *device_rom_region() const;
// reading and writing
virtual DECLARE_READ8_MEMBER(read_rom04) { if (m_subslot->exists()) return m_subslot->read_rom04(space, offset); else return 0xff; }
virtual DECLARE_READ8_MEMBER(read_rom0c) { if (m_subslot->exists()) return m_subslot->read_rom0c(space, offset); else return 0xff; }
virtual void write_bank(int bank) { if (m_subslot->exists()) m_subslot->write_bank(bank); }
DECLARE_WRITE_LINE_MEMBER(lrq_callback);
DECLARE_WRITE8_MEMBER(io_write);
DECLARE_READ8_MEMBER(t0_read) { return m_speech->lrq_r() ? 0 : 1; }
private:
required_device<sp0256_device> m_speech;
required_device<o2_cart_slot_device> m_subslot;
int m_lrq_state;
};
// device type definition
extern const device_type O2_ROM_VOICE;
#endif
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