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// license:BSD-3-Clause
// copyright-holders:Nigel Barnes
/**********************************************************************
Aquarius Memory Cartridges
**********************************************************************/
#ifndef MAME_BUS_AQUARIUS_RAM_H
#define MAME_BUS_AQUARIUS_RAM_H
#pragma once
#include "slot.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> aquarius_ram_device
class aquarius_ram_device :
public device_t,
public device_aquarius_cartridge_interface
{
protected:
// construction/destruction
aquarius_ram_device(const machine_config& mconfig, device_type type, const char* tag, device_t* owner, uint32_t clock, uint16_t size);
// device-level overrides
virtual void device_start() override;
// device_aquarius_cartridge_interface overrides
virtual uint8_t mreq_r(offs_t offset) override;
virtual void mreq_w(offs_t offset, uint8_t data) override;
private:
uint16_t m_ram_size;
std::unique_ptr<uint8_t[]> m_ram;
};
// ======================> aquarius_ram4_device
class aquarius_ram4_device : public aquarius_ram_device
{
public:
// construction/destruction
aquarius_ram4_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
// ======================> aquarius_ram16_device
class aquarius_ram16_device : public aquarius_ram_device
{
public:
// construction/destruction
aquarius_ram16_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
// ======================> aquarius_ram32_device
class aquarius_ram32_device : public aquarius_ram_device
{
public:
// construction/destruction
aquarius_ram32_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
// ======================> aquarius_ram16p_device
class aquarius_ram16p_device :
public device_t,
public device_aquarius_cartridge_interface
{
public:
// construction/destruction
aquarius_ram16p_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_start() override;
// device_aquarius_cartridge_interface overrides
virtual uint8_t mreq_ce_r(offs_t offset) override;
virtual void mreq_ce_w(offs_t offset, uint8_t data) override;
private:
std::unique_ptr<uint8_t[]> m_ram;
};
// device type definition
DECLARE_DEVICE_TYPE(AQUARIUS_RAM4, aquarius_ram4_device)
DECLARE_DEVICE_TYPE(AQUARIUS_RAM16, aquarius_ram16_device)
DECLARE_DEVICE_TYPE(AQUARIUS_RAM32, aquarius_ram32_device)
DECLARE_DEVICE_TYPE(AQUARIUS_RAM16P, aquarius_ram16p_device)
#endif // MAME_BUS_AQUARIUS_RAM_H
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