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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Atari Portfolio 128KB RAM card emulation
**********************************************************************/
#ifndef MAME_BUS_POFO_RAM_H
#define MAME_BUS_POFO_RAM_H
#pragma once
#include "ccm.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> portfolio_ram_card_device
class portfolio_ram_card_device : public device_t,
public device_portfolio_memory_card_slot_interface,
public device_nvram_interface
{
public:
// construction/destruction
portfolio_ram_card_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
protected:
// device-level overrides
virtual void device_start() override;
// device_nvram_interface overrides
virtual void nvram_default() override { }
virtual bool nvram_read(util::read_stream &file) override { size_t actual; return !file.read(m_nvram, m_nvram.bytes(), actual) && actual == m_nvram.bytes(); }
virtual bool nvram_write(util::write_stream &file) override { size_t actual; return !file.write(m_nvram, m_nvram.bytes(), actual) && actual == m_nvram.bytes(); }
// device_portfolio_memory_card_slot_interface overrides
virtual bool cdet() override { return 0; }
virtual uint8_t nrdi_r(offs_t offset) override;
virtual void nwri_w(offs_t offset, uint8_t data) override;
memory_share_creator<uint8_t> m_nvram;
};
// device type definition
DECLARE_DEVICE_TYPE(PORTFOLIO_RAM_CARD, portfolio_ram_card_device)
#endif // MAME_BUS_POFO_RAM_H
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