// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Tandy Radio Shack TRS-80 Model II keyboard emulation **********************************************************************/ #pragma once #ifndef __TRS80M2_KEYBOARD__ #define __TRS80M2_KEYBOARD__ #include "emu.h" #include "cpu/mcs48/mcs48.h" #include "sound/discrete.h" //************************************************************************** // MACROS / CONSTANTS //************************************************************************** #define TRS80M2_KEYBOARD_TAG "trs80m2kb" //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define MCFG_TRS80M2_KEYBOARD_CLOCK_CALLBACK(_write) \ devcb = &trs80m2_keyboard_device::set_clock_wr_callback(*device, DEVCB_##_write); //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> trs80m2_keyboard_device class trs80m2_keyboard_device : public device_t { public: // construction/destruction trs80m2_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); template static devcb_base &set_clock_wr_callback(device_t &device, _Object object) { return downcast(device).m_write_clock.set_callback(object); } // optional information overrides virtual const tiny_rom_entry *device_rom_region() const override; virtual machine_config_constructor device_mconfig_additions() const override; virtual ioport_constructor device_input_ports() const override; DECLARE_WRITE_LINE_MEMBER( busy_w ); DECLARE_READ_LINE_MEMBER( data_r ); // not really public DECLARE_READ8_MEMBER( kb_t1_r ); DECLARE_READ8_MEMBER( kb_p0_r ); DECLARE_WRITE8_MEMBER( kb_p1_w ); DECLARE_WRITE8_MEMBER( kb_p2_w ); protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; private: enum { LED_0 = 0, LED_1 }; required_device m_maincpu; required_ioport_array<12> m_y; devcb_write_line m_write_clock; int m_busy; int m_data; int m_clk; uint8_t m_keylatch; }; // device type definition extern const device_type TRS80M2_KEYBOARD; #endif