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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
Atari vector hardware
***************************************************************************/
#ifndef __ATARIVGEAROM_H__
#define __ATARIVGEAROM_H__
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define MCFG_ATARIVGEAROM_ADD(_tag) \
MCFG_DEVICE_ADD(_tag, ATARIVGEAROM, 0)
#define EAROM_SIZE 0x40
// ======================> atari_vg_earom_device
class atari_vg_earom_device : public device_t,
public device_nvram_interface
{
public:
// construction/destruction
atari_vg_earom_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_nvram_interface overrides
virtual void nvram_default() override;
virtual void nvram_read(emu_file &file) override;
virtual void nvram_write(emu_file &file) override;
public:
DECLARE_READ8_MEMBER( read );
DECLARE_WRITE8_MEMBER( write );
DECLARE_WRITE8_MEMBER( ctrl_w );
private:
int m_old_ctrl;
int m_state;
int m_in_offset;
int m_in_data;
int m_out_data;
char m_rom[EAROM_SIZE];
};
// device type definition
extern const device_type ATARIVGEAROM;
#endif
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