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// license:BSD-3-Clause
// copyright-holders:Robbbert
/**********************************************************************
DG640 Video Card
**********************************************************************/
#ifndef MAME_BUS_S100_DG640_H
#define MAME_BUS_S100_DG640_H
#pragma once
#include "bus/s100/s100.h"
class dg640_device : public device_t, public device_s100_card_interface
{
public:
// construction/destruction
dg640_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
// device_s100_card_interface overrides
virtual u8 s100_smemr_r(offs_t offset) override;
virtual void s100_mwrt_w(offs_t offset, u8 data) override;
private:
u32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
// object finders
required_region_ptr<u8> m_p_chargen;
// internal state
std::unique_ptr<u8[]> m_p_videoram;
std::unique_ptr<u8[]> m_p_attribram;
u8 m_framecnt;
};
DECLARE_DEVICE_TYPE(S100_DG640, device_s100_card_interface)
#endif // MAME_BUS_S100_DG640_H
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