#ifndef __SAT_SLOT_H #define __SAT_SLOT_H /*************************************************************************** TYPE DEFINITIONS ***************************************************************************/ // ======================> device_sat_cart_interface class device_sat_cart_interface : public device_slot_card_interface { public: // construction/destruction device_sat_cart_interface(const machine_config &mconfig, device_t &device); virtual ~device_sat_cart_interface(); // reading from ROM virtual DECLARE_READ32_MEMBER(read_rom) { return 0xffffffff; } // reading and writing to Extended DRAM chips virtual DECLARE_READ32_MEMBER(read_ext_dram0) { return 0xffffffff; } virtual DECLARE_WRITE32_MEMBER(write_ext_dram0) {} virtual DECLARE_READ32_MEMBER(read_ext_dram1) { return 0xffffffff; } virtual DECLARE_WRITE32_MEMBER(write_ext_dram1) {} // reading and writing to Extended BRAM chip virtual DECLARE_READ32_MEMBER(read_ext_bram) { return 0xffffffff; } virtual DECLARE_WRITE32_MEMBER(write_ext_bram) {} virtual int get_cart_type() { return m_cart_type; }; void rom_alloc(running_machine &machine, UINT32 size); UINT32* get_rom_base() { return m_rom; } UINT32* get_ext_dram0_base() { return m_ext_dram0; } UINT32* get_ext_dram1_base() { return m_ext_dram1; } UINT8* get_ext_bram_base() { return m_ext_bram; } UINT32 get_rom_size() { return m_rom_size; } UINT32 get_ext_dram0_size() { return m_ext_dram0_size; } UINT32 get_ext_dram1_size() { return m_ext_dram1_size; } UINT32 get_ext_bram_size() { return m_ext_bram_size; } protected: int m_cart_type; // internal state UINT32 *m_rom; UINT32 *m_ext_dram0; UINT32 *m_ext_dram1; UINT8 *m_ext_bram; UINT32 m_rom_size; UINT32 m_ext_dram0_size; UINT32 m_ext_dram1_size; UINT32 m_ext_bram_size; }; // ======================> sat_cart_slot_device class sat_cart_slot_device : public device_t, public device_image_interface, public device_slot_interface { public: // construction/destruction sat_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); virtual ~sat_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(char *swlist, char *swname, rom_entry *start_entry); int get_cart_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 "sat_cart"; } virtual const char *file_extensions() const { return "bin"; } // slot interface overrides virtual const char * get_default_card_software(const machine_config &config, emu_options &options); // reading and writing virtual DECLARE_READ32_MEMBER(read_rom); virtual DECLARE_READ32_MEMBER(read_ext_dram0); virtual DECLARE_WRITE32_MEMBER(write_ext_dram0); virtual DECLARE_READ32_MEMBER(read_ext_dram1); virtual DECLARE_WRITE32_MEMBER(write_ext_dram1); virtual DECLARE_READ32_MEMBER(read_ext_bram); virtual DECLARE_WRITE32_MEMBER(write_ext_bram); private: device_sat_cart_interface* m_cart; }; // device type definition extern const device_type SATURN_CART_SLOT; /*************************************************************************** DEVICE CONFIGURATION MACROS ***************************************************************************/ #define MCFG_SATURN_CARTRIDGE_ADD(_tag,_slot_intf,_def_slot) \ MCFG_DEVICE_ADD(_tag, SATURN_CART_SLOT, 0) \ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) #endif