// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Xerox 820/820-II ASCII keyboard emulation *********************************************************************/ #pragma once #ifndef __XEROX_820_KEYBOARD__ #define __XEROX_820_KEYBOARD__ #include "emu.h" #include "cpu/mcs48/mcs48.h" //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define MCFG_XEROX_820_KEYBOARD_KBSTB_CALLBACK(_devcb) \ devcb = &xerox_820_keyboard_t::set_kbstb_wr_callback(*device, DEVCB_##_devcb); //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> xerox_820_keyboard_t class xerox_820_keyboard_t : public device_t { public: // construction/destruction xerox_820_keyboard_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); template static devcb_base &set_kbstb_wr_callback(device_t &device, _Object object) { return downcast(device).m_kbstb_cb.set_callback(object); } // optional information overrides virtual const rom_entry *device_rom_region() const; virtual machine_config_constructor device_mconfig_additions() const; virtual ioport_constructor device_input_ports() const; UINT8 read() { return m_bus; } DECLARE_READ8_MEMBER( kb_p1_r ); DECLARE_WRITE8_MEMBER( kb_p1_w ); DECLARE_READ8_MEMBER( kb_p2_r ); DECLARE_READ8_MEMBER( kb_t0_r ); DECLARE_READ8_MEMBER( kb_t1_r ); DECLARE_WRITE8_MEMBER( kb_bus_w ); protected: // device-level overrides virtual void device_start(); virtual void device_reset(); virtual void device_reset_after_children(); private: required_device m_maincpu; required_ioport m_y0; required_ioport m_y1; required_ioport m_y2; required_ioport m_y3; required_ioport m_y4; required_ioport m_y5; required_ioport m_y6; required_ioport m_y7; required_ioport m_y8; required_ioport m_yf; devcb_write_line m_kbstb_cb; UINT8 m_p1; UINT8 m_bus; }; // device type definition extern const device_type XEROX_820_KEYBOARD; #endif