// 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 **********************************************************************/ #pragma once #ifndef __QL_ROM_CARTRIDGE_SLOT__ #define __QL_ROM_CARTRIDGE_SLOT__ #include "emu.h" //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define MCFG_QL_ROM_CARTRIDGE_SLOT_ADD(_tag, _slot_intf, _def_slot) \ MCFG_DEVICE_ADD(_tag, QL_ROM_CARTRIDGE_SLOT, 0) \ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> device_ql_rom_cartridge_card_interface class ql_rom_cartridge_slot_t; class device_ql_rom_cartridge_card_interface : public device_slot_card_interface { friend class ql_rom_cartridge_slot_t; public: // construction/destruction device_ql_rom_cartridge_card_interface(const machine_config &mconfig, device_t &device); virtual ~device_ql_rom_cartridge_card_interface(); virtual void romoeh_w(int state) { m_romoeh = state; } virtual UINT8 read(address_space &space, offs_t offset, UINT8 data) { return data; } virtual void write(address_space &space, offs_t offset, UINT8 data) { } protected: ql_rom_cartridge_slot_t *m_slot; optional_shared_ptr m_rom; int m_romoeh; }; // ======================> ql_rom_cartridge_slot_t class ql_rom_cartridge_slot_t : public device_t, public device_slot_interface, public device_image_interface { public: // construction/destruction ql_rom_cartridge_slot_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); // computer interface UINT8 read(address_space &space, offs_t offset, UINT8 data) { if (m_card) data = m_card->read(space, offset, data); return data; } void write(address_space &space, offs_t offset, UINT8 data) { if (m_card) m_card->write(space, offset, data); } DECLARE_WRITE_LINE_MEMBER( romoeh_w ) { if (m_card) m_card->romoeh_w(state); } protected: // device-level overrides virtual void device_config_complete() override { update_names(); } virtual void device_start() override; // image-level overrides virtual image_init_result call_load() override; virtual const software_list_loader &get_software_list_loader() const override { return rom_software_list_loader::instance(); } virtual iodevice_t image_type() const override { return IO_CARTSLOT; } virtual bool is_readable() const override { return 1; } virtual bool is_writeable() const override { return 0; } virtual bool is_creatable() const override { return 0; } virtual bool must_be_loaded() const override { return 0; } virtual bool is_reset_on_load() const override { return 1; } virtual const char *image_interface() const override { return "ql_cart"; } virtual const char *file_extensions() const override { return "rom,bin"; } // slot interface overrides virtual std::string get_default_card_software() override; device_ql_rom_cartridge_card_interface *m_card; }; // device type definition extern const device_type QL_ROM_CARTRIDGE_SLOT; SLOT_INTERFACE_EXTERN( ql_rom_cartridge_cards ); #endif