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// license:BSD-3-Clause
// copyright-holders:Nigel Barnes
/**********************************************************************
Ralph Allen 32K Dynamic RAM Board
**********************************************************************/
#ifndef MAME_BUS_TANBUS_RA32K_H
#define MAME_BUS_TANBUS_RA32K_H
#pragma once
#include "bus/tanbus/tanbus.h"
#include "bus/tanbus/ra32k.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class tanbus_ra32k_device :
public device_t,
public device_tanbus_interface
{
public:
// construction/destruction
tanbus_ra32k_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// optional information overrides
virtual const tiny_rom_entry *device_rom_region() const override;
virtual ioport_constructor device_input_ports() const override;
virtual uint8_t read(offs_t offset, int inhrom, int inhram, int be) override;
virtual void write(offs_t offset, uint8_t data, int inhrom, int inhram, int be) override;
private:
required_memory_region m_rom;
required_ioport_array<3> m_dsw;
required_ioport m_link;
offs_t m_addr_start;
offs_t m_addr_end;
std::unique_ptr<uint8_t[]> m_ram;
bool block_enabled(offs_t offset, int inhrom, int inhram, int be);
};
// device type definition
DECLARE_DEVICE_TYPE(TANBUS_RA32K, tanbus_ra32k_device)
#endif // MAME_BUS_TANBUS_RA32K_H
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