// license:BSD-3-Clause // copyright-holders:Fabio Priuli #ifndef MAME_BUS_M5_SLOT_H #define MAME_BUS_M5_SLOT_H #pragma once #include "softlist_dev.h" /*************************************************************************** TYPE DEFINITIONS ***************************************************************************/ /* PCB */ enum { EM_5 = 1, MEM64KBI, MEM64KBF, MEM64KRX }; #define M5_STD 0 // ======================> device_m5_cart_interface class device_m5_cart_interface : public device_interface { public: // construction/destruction virtual ~device_m5_cart_interface(); // reading and writing virtual DECLARE_READ8_MEMBER(read_rom) { return 0xff; } virtual DECLARE_READ8_MEMBER(read_ram) { return 0xff; } virtual DECLARE_WRITE8_MEMBER(write_ram) {} void rom_alloc(uint32_t size, const char *tag); void ram_alloc(uint32_t size); uint8_t* get_rom_base() { return m_rom; } uint8_t* get_ram_base() { return &m_ram[0]; } uint32_t get_rom_size() { return m_rom_size; } uint32_t get_ram_size() { return m_ram.size(); } void save_ram() { device().save_item(NAME(m_ram)); } protected: device_m5_cart_interface(const machine_config &mconfig, device_t &device); // internal state uint8_t *m_rom; uint32_t m_rom_size; std::vector m_ram; }; // ======================> m5_cart_slot_device class m5_cart_slot_device : public device_t, public device_image_interface, public device_single_card_slot_interface { public: // construction/destruction template m5_cart_slot_device(machine_config const &mconfig, char const *tag, device_t *owner, T &&opts, char const *dflt) : m5_cart_slot_device(mconfig, tag, owner, 0) { option_reset(); opts(*this); set_default_option(dflt); set_fixed(false); } m5_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0); virtual ~m5_cart_slot_device(); // image-level overrides virtual image_init_result call_load() override; virtual void call_unload() override { } virtual iodevice_t image_type() const noexcept override { return IO_CARTSLOT; } virtual bool is_readable() const noexcept override { return true; } virtual bool is_writeable() const noexcept override { return false; } virtual bool is_creatable() const noexcept override { return false; } virtual bool must_be_loaded() const noexcept override { return false; } virtual bool is_reset_on_load() const noexcept override { return true; } virtual const char *image_interface() const noexcept override { return "m5_cart"; } virtual const char *file_extensions() const noexcept override { return "bin,rom"; } // slot interface overrides virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override; int get_type() { return m_type; } void save_ram() { if (m_cart && m_cart->get_ram_size()) m_cart->save_ram(); } // reading and writing virtual DECLARE_READ8_MEMBER(read_rom); virtual DECLARE_READ8_MEMBER(read_ram); virtual DECLARE_WRITE8_MEMBER(write_ram); protected: // device-level overrides virtual void device_start() override; // device_image_interface implementation virtual const software_list_loader &get_software_list_loader() const override { return rom_software_list_loader::instance(); } int m_type; device_m5_cart_interface* m_cart; }; // device type definition DECLARE_DEVICE_TYPE(M5_CART_SLOT, m5_cart_slot_device) /*************************************************************************** DEVICE CONFIGURATION MACROS ***************************************************************************/ #define M5SLOT_ROM_REGION_TAG ":cart:rom" #endif // MAME_BUS_M5_SLOT_H