diff options
Diffstat (limited to 'src/devices/bus/vcs/vcs_slot.h')
-rw-r--r-- | src/devices/bus/vcs/vcs_slot.h | 136 |
1 files changed, 41 insertions, 95 deletions
diff --git a/src/devices/bus/vcs/vcs_slot.h b/src/devices/bus/vcs/vcs_slot.h index 8766ae31f33..3b014f5c352 100644 --- a/src/devices/bus/vcs/vcs_slot.h +++ b/src/devices/bus/vcs/vcs_slot.h @@ -5,86 +5,14 @@ #pragma once -#include "softlist_dev.h" +#include "imagedev/cartrom.h" -/*************************************************************************** - TYPE DEFINITIONS - ***************************************************************************/ +class device_vcs_cart_interface; -#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<uint8_t> m_ram; -}; - - -// ======================> vcs_cart_slot_device class vcs_cart_slot_device : public device_t, - public device_image_interface, + public device_cartrom_image_interface, public device_single_card_slot_interface<device_vcs_cart_interface> { public: @@ -101,41 +29,30 @@ public: 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; + template <typename T> void set_address_space(T &&tag, int no) { m_address_space.set_tag(std::forward<T>(tag), no); } + + // device_image_interface implementation + virtual std::pair<std::error_condition, std::string> 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 + // device_slot_interface implementation virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override; - int get_cart_type() { return m_type; }; + 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 + // device_t implementation 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; + device_vcs_cart_interface *m_cart; int m_type; + optional_address_space m_address_space; static bool detect_snowhite(const uint8_t *cart, uint32_t len); static bool detect_modeDC(const uint8_t *cart, uint32_t len); @@ -152,6 +69,35 @@ private: 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); + + friend class device_vcs_cart_interface; +}; + + +class device_vcs_cart_interface : public device_interface +{ +public: + // construction/destruction + virtual ~device_vcs_cart_interface(); + + virtual void install_memory_handlers(address_space *space) { } + + 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<uint8_t> m_ram; }; |