// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Commodore SuperPET emulation **********************************************************************/ #ifndef MAME_BUS_PET_SUPERPET_H #define MAME_BUS_PET_SUPERPET_H #pragma once #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_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; virtual ioport_constructor device_input_ports() const override; // device_pet_expansion_card_interface overrides virtual int pet_norom_r(offs_t offset, int sel) override; virtual uint8_t pet_bd_r(offs_t offset, uint8_t data, int &sel) override; virtual void pet_bd_w(offs_t offset, uint8_t data, int &sel) override; virtual int pet_diag_r() override; virtual void pet_irq_w(int state) override; private: DECLARE_WRITE_LINE_MEMBER( acia_irq_w ); uint8_t read(offs_t offset); void write(offs_t offset, uint8_t data); void superpet_mem(address_map &map); required_device m_maincpu; required_device m_acia; required_device m_dongle; required_memory_region m_rom; memory_share_creator m_ram; required_ioport m_io_sw1; required_ioport m_io_sw2; inline void update_cpu(); inline bool is_ram_writable(); uint8_t m_system; uint8_t m_bank; uint8_t m_sw1; uint8_t m_sw2; int m_sel9_rom; int m_pet_irq; int m_acia_irq; }; // device type definition DECLARE_DEVICE_TYPE(SUPERPET, superpet_device) #endif // MAME_BUS_PET_SUPERPET_H