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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Wang PC-PM031-B Extended Memory Board emulation
**********************************************************************/
#ifndef MAME_BUS_WANGPC_EMB_H
#define MAME_BUS_WANGPC_EMB_H
#pragma once
#include "wangpc.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> wangpc_emb_device
class wangpc_emb_device : public device_t,
public device_wangpcbus_card_interface
{
public:
// construction/destruction
wangpc_emb_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;
// device_wangpcbus_card_interface overrides
virtual uint16_t wangpcbus_mrdc_r(offs_t offset, uint16_t mem_mask) override;
virtual void wangpcbus_amwc_w(offs_t offset, uint16_t mem_mask, uint16_t data) override;
virtual uint16_t wangpcbus_iorc_r(offs_t offset, uint16_t mem_mask) override;
virtual void wangpcbus_aiowc_w(offs_t offset, uint16_t mem_mask, uint16_t data) override;
private:
optional_shared_ptr<uint16_t> m_ram;
uint16_t m_option;
int m_parity_error;
int m_parity_odd;
};
// device type definition
DECLARE_DEVICE_TYPE(WANGPC_EMB, wangpc_emb_device)
#endif // MAME_BUS_WANGPC_EMB_H
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