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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Commodore 1700/1750/1764 RAM Expansion Unit emulation
**********************************************************************/
#ifndef MAME_BUS_C64_REU_H
#define MAME_BUS_C64_REU_H
#pragma once
#include "bus/generic/slot.h"
#include "bus/generic/carts.h"
#include "exp.h"
#include "machine/mos8726.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> c64_reu_cartridge_device
class c64_reu_cartridge_device : public device_t,
public device_c64_expansion_card_interface
{
public:
// optional information overrides
virtual machine_config_constructor device_mconfig_additions() const override;
protected:
enum
{
TYPE_1700,
TYPE_1750,
TYPE_1764
};
// construction/destruction
c64_reu_cartridge_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock, uint32_t variant, int jp1, size_t ram_size);
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_c64_expansion_card_interface overrides
virtual uint8_t c64_cd_r(address_space &space, offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override;
virtual void c64_cd_w(address_space &space, offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override;
required_device<mos8726_device> m_dmac;
required_device<generic_slot_device> m_eprom;
optional_shared_ptr<uint8_t> m_ram;
int m_variant;
int m_jp1;
size_t m_ram_size;
};
// ======================> c64_reu1700_cartridge_device
class c64_reu1700_cartridge_device : public c64_reu_cartridge_device
{
public:
// construction/destruction
c64_reu1700_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
// ======================> c64_reu1750_cartridge_device
class c64_reu1750_cartridge_device : public c64_reu_cartridge_device
{
public:
// construction/destruction
c64_reu1750_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
// ======================> c64_reu1700_cartridge_device
class c64_reu1764_cartridge_device : public c64_reu_cartridge_device
{
public:
// construction/destruction
c64_reu1764_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
// device type definition
DECLARE_DEVICE_TYPE(C64_REU1700, c64_reu1700_cartridge_device)
DECLARE_DEVICE_TYPE(C64_REU1750, c64_reu1750_cartridge_device)
DECLARE_DEVICE_TYPE(C64_REU1764, c64_reu1764_cartridge_device)
#endif // MAME_BUS_C64_REU_H
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