// license:BSD-3-Clause // copyright-holders: F. Ulivi /********************************************************************* hp80_optrom.h Optional ROMs for HP80 systems *********************************************************************/ #ifndef MAME_MACHINE_HP80_OPTROM_H #define MAME_MACHINE_HP80_OPTROM_H #pragma once #include "softlist_dev.h" // Size of optional ROMs (8k) static constexpr offs_t HP80_OPTROM_SIZE = 0x2000; class hp80_optrom_device : public device_t, public device_image_interface { public: // construction/destruction hp80_optrom_device(machine_config const &mconfig, char const *tag, device_t *owner) : hp80_optrom_device(mconfig, tag, owner, (uint32_t)0) { } hp80_optrom_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual ~hp80_optrom_device(); void install_read_handler(address_space& space); protected: // device-level overrides virtual void device_start() override; // image-level overrides virtual image_init_result call_load() override; virtual void call_unload() override; virtual const software_list_loader &get_software_list_loader() const override { return rom_software_list_loader::instance(); } virtual iodevice_t image_type() const noexcept override { return IO_ROM; } 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 false; } virtual bool is_reset_on_load() const noexcept override { return true; } virtual const char *image_interface() const noexcept override { return "hp80_rom"; } virtual const char *file_extensions() const noexcept override { return "bin"; } uint8_t m_select_code; }; // device type definition DECLARE_DEVICE_TYPE(HP80_OPTROM, hp80_optrom_device) #endif // MAME_MACHINE_HP80_OPTROM_H