// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Xerox 820/820-II ASCII keyboard emulation *********************************************************************/ #ifndef MAME_MACHINE_X820KB_H #define MAME_MACHINE_X820KB_H #pragma once #include "cpu/mcs48/mcs48.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> xerox_820_keyboard_device class xerox_820_keyboard_device : public device_t { public: // construction/destruction xerox_820_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); auto kbstb_wr_callback() { return m_kbstb_cb.bind(); } uint8_t read() { return m_bus; } protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; virtual void device_reset_after_children() override; // optional information overrides virtual const tiny_rom_entry *device_rom_region() const override; virtual void device_add_mconfig(machine_config &config) override; virtual ioport_constructor device_input_ports() const override; private: required_device m_maincpu; required_ioport_array<16> m_y; devcb_write_line m_kbstb_cb; uint8_t m_p1; uint8_t m_bus; DECLARE_READ8_MEMBER( kb_p1_r ); DECLARE_WRITE8_MEMBER( kb_p1_w ); DECLARE_READ8_MEMBER( kb_p2_r ); DECLARE_READ_LINE_MEMBER( kb_t0_r ); DECLARE_READ_LINE_MEMBER( kb_t1_r ); DECLARE_WRITE8_MEMBER( kb_bus_w ); }; // device type definition DECLARE_DEVICE_TYPE(XEROX_820_KEYBOARD, xerox_820_keyboard_device) #endif // MAME_MACHINE_X820KB_H