// license:BSD-3-Clause // copyright-holders:Nigel Barnes /********************************************************************** Acorn 80x25 VDU Interface http://chrisacorns.computinghistory.org.uk/8bit_Upgrades/Acorn_80x25VDUIF.html **********************************************************************/ #ifndef MAME_BUS_ACORN_SYSTEM_VDU80_H #define MAME_BUS_ACORN_SYSTEM_VDU80_H #pragma once #include "bus/acorn/bus.h" #include "video/mc6845.h" #include "emupal.h" #include "screen.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class acorn_vdu80_device : public device_t, public device_acorn_bus_interface { public: // construction/destruction acorn_vdu80_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); protected: // device-level overrides virtual void device_start() override ATTR_COLD; virtual void device_reset() override ATTR_COLD; // optional information overrides virtual void device_add_mconfig(machine_config &config) override ATTR_COLD; virtual const tiny_rom_entry *device_rom_region() const override ATTR_COLD; virtual ioport_constructor device_input_ports() const override ATTR_COLD; private: MC6845_UPDATE_ROW(crtc_update_row); required_memory_region m_chargen; required_device m_screen; required_device m_crtc; required_device m_palette; required_ioport m_links; std::unique_ptr m_videoram; }; // device type definition DECLARE_DEVICE_TYPE(ACORN_VDU80, acorn_vdu80_device) #endif // MAME_BUS_ACORN_SYSTEM_VDU80_H