// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Sinclair QL ROM cartridge port emulation ********************************************************************** A B * 1 * VDD A12 * 2 * A14 A7 * 3 * A13 A6 * 4 * A8 A5 * 5 * A9 SLOT 6 SLOT A4 * 7 * A11 A3 * 8 * ROMOEH A2 * 9 * A10 A1 * 10 * A15 A0 * 11 * D7 D0 * 12 * D6 D1 * 13 * D5 D2 * 14 * D4 GND * 15 * D3 **********************************************************************/ #ifndef MAME_BUS_QL_ROM_H #define MAME_BUS_QL_ROM_H #pragma once #include "imagedev/cartrom.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> device_ql_rom_cartridge_card_interface class ql_rom_cartridge_slot_device; class device_ql_rom_cartridge_card_interface : public device_interface { friend class ql_rom_cartridge_slot_device; public: // construction/destruction virtual ~device_ql_rom_cartridge_card_interface(); virtual void romoeh_w(int state) { m_romoeh = state; } virtual uint8_t read(offs_t offset, uint8_t data) { return data; } virtual void write(offs_t offset, uint8_t data) { } protected: device_ql_rom_cartridge_card_interface(const machine_config &mconfig, device_t &device); virtual void interface_post_start() override; std::unique_ptr m_rom; ql_rom_cartridge_slot_device *const m_slot; int m_romoeh; }; // ======================> ql_rom_cartridge_slot_device class ql_rom_cartridge_slot_device : public device_t, public device_single_card_slot_interface, public device_cartrom_image_interface { public: // construction/destruction template ql_rom_cartridge_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, T &&opts, const char *dflt) : ql_rom_cartridge_slot_device(mconfig, tag, owner, 0) { set_options(std::forward(opts), dflt, false); } ql_rom_cartridge_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0); // computer interface uint8_t read(offs_t offset, uint8_t data) { if (m_card) data = m_card->read(offset, data); return data; } void write(offs_t offset, uint8_t data) { if (m_card) m_card->write(offset, data); } void romoeh_w(int state) { if (m_card) m_card->romoeh_w(state); } protected: // device_t implementation virtual void device_resolve_objects() override ATTR_COLD; 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 "ql_cart"; } virtual const char *file_extensions() const noexcept override { return "rom,bin"; } // device_slot_interface implementation virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override; device_ql_rom_cartridge_card_interface *m_card; }; // device type declaration DECLARE_DEVICE_TYPE(QL_ROM_CARTRIDGE_SLOT, ql_rom_cartridge_slot_device) void ql_rom_cartridge_cards(device_slot_interface &device); #endif // MAME_BUS_QL_ROM_H