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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Commodore SuperPET emulation
**********************************************************************/
#pragma once
#ifndef __SUPERPET__
#define __SUPERPET__
#include "exp.h"
#include "machine/mos6551.h"
#include "machine/mos6702.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> superpet_device
class superpet_device : public device_t,
public device_pet_expansion_card_interface
{
public:
// construction/destruction
superpet_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual const rom_entry *device_rom_region() const override;
virtual machine_config_constructor device_mconfig_additions() const override;
virtual ioport_constructor device_input_ports() const override;
DECLARE_READ8_MEMBER( read );
DECLARE_WRITE8_MEMBER( write );
DECLARE_WRITE_LINE_MEMBER( acia_irq_w );
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_pet_expansion_card_interface overrides
virtual int pet_norom_r(address_space &space, offs_t offset, int sel) override;
virtual UINT8 pet_bd_r(address_space &space, offs_t offset, UINT8 data, int &sel) override;
virtual void pet_bd_w(address_space &space, offs_t offset, UINT8 data, int &sel) override;
virtual int pet_diag_r() override;
virtual void pet_irq_w(int state) override;
private:
required_device<cpu_device> m_maincpu;
required_device<mos6551_device> m_acia;
required_device<mos6702_device> m_dongle;
required_memory_region m_rom;
optional_shared_ptr<UINT8> m_ram;
required_ioport m_io_sw1;
required_ioport m_io_sw2;
inline void update_cpu();
inline bool is_ram_writable();
UINT8 m_system;
UINT8 m_bank;
UINT8 m_sw1;
UINT8 m_sw2;
int m_sel9_rom;
int m_pet_irq;
int m_acia_irq;
};
// device type definition
extern const device_type SUPERPET;
#endif
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