// license:BSD-3-Clause // copyright-holders:Fabio Priuli #ifndef __VC4000_SLOT_H #define __VC4000_SLOT_H /*************************************************************************** TYPE DEFINITIONS ***************************************************************************/ /* PCB */ enum { VC4000_STD = 0, VC4000_ROM4K, VC4000_RAM1K, VC4000_CHESS2 }; // ======================> device_vc4000_cart_interface class device_vc4000_cart_interface : public device_slot_card_interface { public: // construction/destruction device_vc4000_cart_interface(const machine_config &mconfig, device_t &device); virtual ~device_vc4000_cart_interface(); // reading and writing virtual DECLARE_READ8_MEMBER(read_rom) { return 0xff; } virtual DECLARE_READ8_MEMBER(extra_rom) { return 0xff; } virtual DECLARE_READ8_MEMBER(read_ram) { return 0xff; } virtual DECLARE_WRITE8_MEMBER(write_ram) {} 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(); } void save_ram() { device().save_item(NAME(m_ram)); } protected: // internal state UINT8 *m_rom; UINT32 m_rom_size; dynamic_buffer m_ram; }; // ======================> vc4000_cart_slot_device class vc4000_cart_slot_device : public device_t, public device_image_interface, public device_slot_interface { public: // construction/destruction vc4000_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); virtual ~vc4000_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 bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry) override; int get_type() { return m_type; } void save_ram() { if (m_cart && m_cart->get_ram_size()) m_cart->save_ram(); } 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 option_guide *create_option_guide() const override { return nullptr; } virtual const char *image_interface() const override { return "vc4000_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_rom); virtual DECLARE_READ8_MEMBER(extra_rom); virtual DECLARE_READ8_MEMBER(read_ram); virtual DECLARE_WRITE8_MEMBER(write_ram); protected: int m_type; device_vc4000_cart_interface* m_cart; }; class h21_cart_slot_device : public vc4000_cart_slot_device { public: // construction/destruction h21_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); virtual ~h21_cart_slot_device(); virtual const char *image_interface() const override { return "h21_cart"; } }; // device type definition extern const device_type VC4000_CART_SLOT; extern const device_type H21_CART_SLOT; /*************************************************************************** DEVICE CONFIGURATION MACROS ***************************************************************************/ #define VC4000SLOT_ROM_REGION_TAG ":cart:rom" #define MCFG_VC4000_CARTRIDGE_ADD(_tag,_slot_intf,_def_slot) \ MCFG_DEVICE_ADD(_tag, VC4000_CART_SLOT, 0) \ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) #define MCFG_H21_CARTRIDGE_ADD(_tag,_slot_intf,_def_slot) \ MCFG_DEVICE_ADD(_tag, H21_CART_SLOT, 0) \ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) #endif