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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
COMX-35 80-Column Card emulation
**********************************************************************/
#ifndef MAME_BUS_COMX35_CLM_H
#define MAME_BUS_COMX35_CLM_H
#pragma once
#include "exp.h"
#include "video/mc6845.h"
#include "emupal.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> comx_clm_device
class comx_clm_device : public device_t,
public device_comx_expansion_card_interface,
public device_gfx_interface
{
public:
// construction/destruction
comx_clm_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 void device_add_mconfig(machine_config &config) override;
// device_comx_expansion_card_interface overrides
virtual int comx_ef4_r() override;
virtual uint8_t comx_mrd_r(offs_t offset, int *extrom) override;
virtual void comx_mwr_w(offs_t offset, uint8_t data) override;
private:
MC6845_UPDATE_ROW( crtc_update_row );
required_device<mc6845_device> m_crtc;
required_device<palette_device> m_palette;
required_memory_region m_rom;
required_memory_region m_char_rom;
optional_shared_ptr<uint8_t> m_video_ram;
};
// device type definition
DECLARE_DEVICE_TYPE(COMX_CLM, comx_clm_device)
#endif // MAME_BUS_COMX35_CLM_H
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