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// license:BSD-3-Clause
// copyright-holders:hap
/**********************************************************************
Videopac+ C7420 Home Computer Module emulation
**********************************************************************/
#ifndef MAME_BUS_ODYSSEY2_HOMECOMP_H
#define MAME_BUS_ODYSSEY2_HOMECOMP_H
#pragma once
#include "slot.h"
#include "cpu/z80/z80.h"
#include "imagedev/cassette.h"
#include "machine/gen_latch.h"
// ======================> o2_homecomp_device
class o2_homecomp_device : public device_t,
public device_o2_cart_interface
{
public:
// construction/destruction
o2_homecomp_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_add_mconfig(machine_config &config) override;
virtual ioport_constructor device_input_ports() const override;
virtual void cart_init() override;
virtual u8 read_rom04(offs_t offset) override { return m_rom[offset]; }
virtual u8 read_rom0c(offs_t offset) override { return m_rom[offset]; }
virtual void write_p1(u8 data) override;
virtual void io_write(offs_t offset, u8 data) override;
virtual u8 io_read(offs_t offset) override;
virtual DECLARE_READ_LINE_MEMBER(t0_read) override { return m_latch[0]->pending_r(); }
private:
required_device<cpu_device> m_maincpu;
required_device_array<generic_latch_8_device, 2> m_latch;
required_device<cassette_image_device> m_cass;
void internal_io_w(offs_t offset, u8 data);
u8 internal_io_r(offs_t offset);
u8 internal_rom_r(offs_t offset) { return m_exrom[offset]; }
void homecomp_io(address_map &map);
void homecomp_mem(address_map &map);
std::unique_ptr<u8[]> m_ram;
u8 m_control = 0;
bool m_installed = false;
};
// device type definition
DECLARE_DEVICE_TYPE(O2_ROM_HOMECOMP, o2_homecomp_device)
#endif // MAME_BUS_ODYSSEY2_HOMECOMP_H
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