// license:BSD-3-Clause // copyright-holders:etabeta #ifndef __ASTROCADE_SLOT_H #define __ASTROCADE_SLOT_H /*************************************************************************** TYPE DEFINITIONS ***************************************************************************/ /* PCB */ enum { ASTROCADE_STD = 0, ASTROCADE_256K, ASTROCADE_512K }; // ======================> device_astrocade_cart_interface class device_astrocade_cart_interface : public device_slot_card_interface { public: // construction/destruction device_astrocade_cart_interface(const machine_config &mconfig, device_t &device); virtual ~device_astrocade_cart_interface(); // reading and writing virtual DECLARE_READ8_MEMBER(read_rom) { return 0xff; } void rom_alloc(UINT32 size, const char *tag); void ram_alloc(UINT32 size); UINT8* get_rom_base() { return m_rom; } UINT32 get_rom_size() { return m_rom_size; } protected: // internal state UINT8 *m_rom; UINT32 m_rom_size; }; // ======================> astrocade_cart_slot_device class astrocade_cart_slot_device : public device_t, public device_image_interface, public device_slot_interface { public: // construction/destruction astrocade_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); virtual ~astrocade_cart_slot_device(); // device-level overrides virtual void device_start(); virtual void device_config_complete(); // image-level overrides virtual bool call_load(); virtual void call_unload() {} virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry); int get_type() { return m_type; } virtual iodevice_t image_type() const { return IO_CARTSLOT; } virtual bool is_readable() const { return 1; } virtual bool is_writeable() const { return 0; } virtual bool is_creatable() const { return 0; } virtual bool must_be_loaded() const { return 0; } virtual bool is_reset_on_load() const { return 1; } virtual const option_guide *create_option_guide() const { return NULL; } virtual const char *image_interface() const { return "astrocde_cart"; } virtual const char *file_extensions() const { return "bin"; } // slot interface overrides virtual void get_default_card_software(astring &result); // reading and writing virtual DECLARE_READ8_MEMBER(read_rom); protected: int m_type; device_astrocade_cart_interface* m_cart; }; // device type definition extern const device_type ASTROCADE_CART_SLOT; /*************************************************************************** DEVICE CONFIGURATION MACROS ***************************************************************************/ #define ASTROCADESLOT_ROM_REGION_TAG ":cart:rom" #define MCFG_ASTROCADE_CARTRIDGE_ADD(_tag,_slot_intf,_def_slot) \ MCFG_DEVICE_ADD(_tag, ASTROCADE_CART_SLOT, 0) \ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) #endif