// license:LGPL-2.1+ // copyright-holders:Angelo Salese, Barry Rodewald /**************************************************** * * Sharp X1 Keyboard device * * TODO: * - de-stateize X1 public variables * ***************************************************/ #include "emu.h" #include "includes/x1.h" //************************************************************************** // LIVE DEVICE //************************************************************************** DEFINE_DEVICE_TYPE(X1_KEYBOARD, x1_keyboard_device, "x1_keyboard", "Sharp X1 Keyboard") //------------------------------------------------- // z80ctc_device - constructor //------------------------------------------------- x1_keyboard_device::x1_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, X1_KEYBOARD, tag, owner, clock) , device_z80daisy_interface(mconfig, *this) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void x1_keyboard_device::device_start() { } //************************************************************************** // DAISY CHAIN INTERFACE //************************************************************************** //------------------------------------------------- // z80daisy_irq_state - return the overall IRQ // state for this device //------------------------------------------------- int x1_keyboard_device::z80daisy_irq_state() { x1_state *state = machine().driver_data(); if(state->m_key_irq_flag != 0) return Z80_DAISY_INT; return 0; } //------------------------------------------------- // z80daisy_irq_ack - acknowledge an IRQ and // return the appropriate vector //------------------------------------------------- int x1_keyboard_device::z80daisy_irq_ack() { x1_state *state = machine().driver_data(); state->m_key_irq_flag = 0; state->m_maincpu->set_input_line(INPUT_LINE_IRQ0,CLEAR_LINE); return state->m_key_irq_vector; } //------------------------------------------------- // z80daisy_irq_reti - clear the interrupt // pending state to allow other interrupts through //------------------------------------------------- void x1_keyboard_device::z80daisy_irq_reti() { }