// license:BSD-3-Clause // copyright-holders:Fabio Priuli #ifndef __O2_SLOT_H #define __O2_SLOT_H /*************************************************************************** TYPE DEFINITIONS ***************************************************************************/ /* PCB */ enum { O2_STD = 0, O2_ROM12, O2_ROM16, O2_CHESS, O2_VOICE }; // ======================> device_o2_cart_interface class device_o2_cart_interface : public device_slot_card_interface { public: // construction/destruction device_o2_cart_interface(const machine_config &mconfig, device_t &device); virtual ~device_o2_cart_interface(); // reading and writing virtual DECLARE_READ8_MEMBER(read_rom04) { return 0xff; } virtual DECLARE_READ8_MEMBER(read_rom0c) { return 0xff; } virtual void write_bank(int bank) {} virtual DECLARE_WRITE8_MEMBER(io_write) {} virtual DECLARE_READ8_MEMBER(t0_read) { return 0; } void rom_alloc(UINT32 size, const char *tag); void ram_alloc(UINT32 size); UINT8* get_rom_base() { return m_rom; } UINT8* get_ram_base() { return &m_ram[0]; } UINT32 get_rom_size() { return m_rom_size; } UINT32 get_ram_size() { return m_ram.size(); } protected: // internal state UINT8 *m_rom; UINT32 m_rom_size; dynamic_buffer m_ram; }; // ======================> o2_cart_slot_device class o2_cart_slot_device : public device_t, public device_image_interface, public device_slot_interface { public: // construction/destruction o2_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); virtual ~o2_cart_slot_device(); // device-level overrides virtual void device_start() override; virtual void device_config_complete() override; // image-level overrides virtual bool call_load() override; virtual void call_unload() override {} virtual softlist_type get_softlist_type() const override { return softlist_type::ROM; } int get_type() { return m_type; } virtual iodevice_t image_type() const override { return IO_CARTSLOT; } virtual bool is_readable() const override { return 1; } virtual bool is_writeable() const override { return 0; } virtual bool is_creatable() const override { return 0; } virtual bool must_be_loaded() const override { return 0; } virtual bool is_reset_on_load() const override { return 1; } virtual const char *image_interface() const override { return "odyssey_cart"; } virtual const char *file_extensions() const override { return "bin,rom"; } // slot interface overrides virtual std::string get_default_card_software() override; // reading and writing virtual DECLARE_READ8_MEMBER(read_rom04); virtual DECLARE_READ8_MEMBER(read_rom0c); virtual DECLARE_WRITE8_MEMBER(io_write); virtual DECLARE_READ8_MEMBER(t0_read) { if (m_cart) return m_cart->t0_read(space, offset); else return 0; } virtual void write_bank(int bank) { if (m_cart) m_cart->write_bank(bank); } protected: int m_type; device_o2_cart_interface* m_cart; }; // device type definition extern const device_type O2_CART_SLOT; /*************************************************************************** DEVICE CONFIGURATION MACROS ***************************************************************************/ #define O2SLOT_ROM_REGION_TAG ":cart:rom" #define MCFG_O2_CARTRIDGE_ADD(_tag,_slot_intf,_def_slot) \ MCFG_DEVICE_ADD(_tag, O2_CART_SLOT, 0) \ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) SLOT_INTERFACE_EXTERN(o2_cart); #endif