// license:BSD-3-Clause // copyright-holders:Fabio Priuli #ifndef MAME_BUS_VCS_VCS_SLOT_H #define MAME_BUS_VCS_VCS_SLOT_H #pragma once #include "softlist_dev.h" /*************************************************************************** TYPE DEFINITIONS ***************************************************************************/ #define A26SLOT_ROM_REGION_TAG ":cart:rom" /* PCB */ enum { A26_2K = 0, A26_4K, A26_F4, A26_F6, A26_F8, A26_F8SW, A26_FA, A26_FE, A26_3E, // to test A26_3F, A26_E0, A26_E7, A26_UA, A26_DC, A26_CV, A26_FV, A26_JVP, // to test A26_32IN1, A26_8IN1, A26_4IN1, A26_DPC, A26_SS, A26_CM, A26_X07, A26_HARMONY, }; // ======================> device_vcs_cart_interface class device_vcs_cart_interface : public device_interface { public: // construction/destruction virtual ~device_vcs_cart_interface(); // reading from ROM virtual uint8_t read_rom(offs_t offset) { return 0xff; } // writing to RAM chips (sometimes it is in a different range than write_bank!) virtual void write_ram(offs_t offset, uint8_t data) { } // read/write to bankswitch address virtual uint8_t read_bank(address_space &space, offs_t offset) { return 0xff; } virtual void write_bank(address_space &space, offs_t offset, uint8_t data) { } virtual void setup_addon_ptr(uint8_t *ptr) { } 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(); } protected: device_vcs_cart_interface(const machine_config &mconfig, device_t &device); // internal state uint8_t *m_rom; uint32_t m_rom_size; std::vector m_ram; }; // ======================> vcs_cart_slot_device class vcs_cart_slot_device : public device_t, public device_image_interface, public device_single_card_slot_interface { public: // construction/destruction template vcs_cart_slot_device(machine_config const &mconfig, char const *tag, device_t *owner, T &&opts, char const *dflt) : vcs_cart_slot_device(mconfig, tag, owner, (uint32_t)0) { option_reset(); opts(*this); set_default_option(dflt); set_fixed(false); } vcs_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0); virtual ~vcs_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 true; } virtual bool is_reset_on_load() const noexcept override { return true; } virtual const char *image_interface() const noexcept override { return "a2600_cart"; } virtual const char *file_extensions() const noexcept override { return "bin,a26"; } // slot interface overrides virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override; int get_cart_type() { return m_type; }; static int identify_cart_type(const uint8_t *ROM, uint32_t len); // reading and writing virtual uint8_t read_rom(offs_t offset); virtual uint8_t read_bank(address_space &space, offs_t offset); virtual void write_bank(address_space &space, offs_t offset, uint8_t data); virtual void write_ram(offs_t offset, uint8_t data); 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(); } private: device_vcs_cart_interface* m_cart; int m_type; static bool detect_snowhite(const uint8_t *cart, uint32_t len); static bool detect_modeDC(const uint8_t *cart, uint32_t len); static bool detect_modeF6(const uint8_t *cart, uint32_t len); static bool detect_mode3E(const uint8_t *cart, uint32_t len); static bool detect_modeSS(const uint8_t *cart, uint32_t len); static bool detect_modeFE(const uint8_t *cart, uint32_t len); static bool detect_modeE0(const uint8_t *cart, uint32_t len); static bool detect_modeCV(const uint8_t *cart, uint32_t len); static bool detect_modeFV(const uint8_t *cart, uint32_t len); static bool detect_modeJVP(const uint8_t *cart, uint32_t len); static bool detect_modeE7(const uint8_t *cart, uint32_t len); static bool detect_modeUA(const uint8_t *cart, uint32_t len); static bool detect_8K_mode3F(const uint8_t *cart, uint32_t len); static bool detect_32K_mode3F(const uint8_t *cart, uint32_t len); static bool detect_super_chip(const uint8_t *cart, uint32_t len); }; // device type definition DECLARE_DEVICE_TYPE(VCS_CART_SLOT, vcs_cart_slot_device) #endif // MAME_BUS_VCS_VCS_SLOT_H