// license:BSD-3-Clause // copyright-holders:Nigel Barnes /********************************************************************** MTX expansion emulation **********************************************************************/ #ifndef MAME_BUS_MTX_EXP_H #define MAME_BUS_MTX_EXP_H #pragma once #include "imagedev/cartrom.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> mtx_exp_slot_device class device_mtx_exp_interface; class mtx_exp_slot_device : public device_t, public device_single_card_slot_interface, public device_cartrom_image_interface { friend class device_mtx_exp_interface; public: // construction/destruction template mtx_exp_slot_device(machine_config const &mconfig, char const *tag, device_t *owner, T &&slot_options, const char *default_option) : mtx_exp_slot_device(mconfig, tag, owner) { set_options(std::forward(slot_options), default_option, false); } mtx_exp_slot_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock = 0); template void set_program_space(T &&tag, int spacenum) { m_program.set_tag(std::forward(tag), spacenum); } template void set_io_space(T &&tag, int spacenum) { m_io.set_tag(std::forward(tag), spacenum); } // callbacks auto busreq_handler() { return m_busreq_handler.bind(); } auto int_handler() { return m_int_handler.bind(); } auto nmi_handler() { return m_nmi_handler.bind(); } // for the card to use void busreq_w(int state) { m_busreq_handler(state); } void int_w(int state) { m_int_handler(state); } void nmi_w(int state) { m_nmi_handler(state); } virtual void bankswitch(uint8_t data); protected: // device_t implementation virtual void device_start() override ATTR_COLD; // device_image_interface implementation virtual std::pair call_load() override; virtual bool is_reset_on_load() const noexcept override { return true; } virtual const char *image_interface() const noexcept override { return "mtx_cart"; } virtual const char *file_extensions() const noexcept override { return "bin,rom"; } // device_slot_interface implementation virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override; private: // address spaces we are attached to required_address_space m_program; required_address_space m_io; devcb_write_line m_busreq_handler; devcb_write_line m_int_handler; devcb_write_line m_nmi_handler; device_mtx_exp_interface *m_card; }; // ======================> device_mtx_exp_interface class device_mtx_exp_interface : public device_interface { public: virtual void bankswitch(uint8_t data) { } void rom_alloc(uint32_t size, const char *tag); uint8_t* get_rom_base() { return m_rom; } uint32_t get_rom_size() { return m_rom_size; } protected: // construction/destruction device_mtx_exp_interface(const machine_config &mconfig, device_t &device); address_space &program_space() { return *m_slot->m_program; } address_space &io_space() { return *m_slot->m_io; } mtx_exp_slot_device *m_slot; private: // internal state uint8_t *m_rom; uint32_t m_rom_size; }; // device type definition DECLARE_DEVICE_TYPE(MTX_EXP_SLOT, mtx_exp_slot_device) void mtx_int_expansion_devices(device_slot_interface &device); void mtx_ext_expansion_devices(device_slot_interface &device); #endif // MAME_BUS_MTX_EXP_H