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// license:BSD-3-Clause
// copyright-holders:Wilbert Pol, Fabio Priuli
/******************************************************************************
Magnavox The Voice emulation
******************************************************************************/
#ifndef MAME_BUS_ODYSSEY2_VOICE_H
#define MAME_BUS_ODYSSEY2_VOICE_H
#pragma once
#include "slot.h"
#include "sound/sp0256.h"
// ======================> o2_voice_device
class o2_voice_device : public device_t,
public device_o2_cart_interface
{
public:
// construction/destruction
o2_voice_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual void cart_init() override;
// reading and writing
virtual u8 read_rom04(offs_t offset) override { return (m_subslot->exists()) ? m_subslot->read_rom04(offset) : 0xff; }
virtual u8 read_rom0c(offs_t offset) override { return (m_subslot->exists()) ? m_subslot->read_rom0c(offset) : 0xff; }
virtual void write_p1(u8 data) override { m_control = data; if (m_subslot->exists()) m_subslot->write_p1(data & 3); }
virtual void write_p2(u8 data) override { if (m_subslot->exists()) m_subslot->write_p2(data & ~4); }
virtual void io_write(offs_t offset, u8 data) override;
virtual DECLARE_READ_LINE_MEMBER(t0_read) override;
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
private:
required_device<sp0256_device> m_speech;
required_device<o2_cart_slot_device> m_subslot;
DECLARE_WRITE_LINE_MEMBER(lrq_callback);
int m_lrq_state = 0;
u8 m_control = 0;
};
// device type definition
DECLARE_DEVICE_TYPE(O2_ROM_VOICE, o2_voice_device)
#endif // MAME_BUS_ODYSSEY2_VOICE_H
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