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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
XL 80 cartridge emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************/
#pragma once
#ifndef __XL80__
#define __XL80__
#include "emu.h"
#include "exp.h"
#include "video/mc6845.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> c64_xl80_device
class c64_xl80_device : public device_t,
public device_c64_expansion_card_interface
{
public:
// construction/destruction
c64_xl80_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual const rom_entry *device_rom_region() const;
virtual machine_config_constructor device_mconfig_additions() const;
// not really public
void crtc_update_row(mc6845_device *device, bitmap_rgb32 &bitmap, const rectangle &cliprect, UINT16 ma, UINT8 ra, UINT16 y, UINT8 x_count, INT8 cursor_x, void *param);
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
// device_c64_expansion_card_interface overrides
virtual UINT8 c64_cd_r(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2);
virtual void c64_cd_w(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2);
virtual int c64_game_r(offs_t offset, int sphi2, int ba, int rw) { return 1; }
virtual int c64_exrom_r(offs_t offset, int sphi2, int ba, int rw) { return 0; }
private:
required_device<h46505_device> m_crtc;
required_memory_region m_char_rom;
optional_shared_ptr<UINT8> m_ram;
};
// device type definition
extern const device_type C64_XL80;
#endif
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