// license:BSD-3-Clause // copyright-holders:Fabio Priuli /********************************************************************** Mattel Intellivision controller port emulation **********************************************************************/ #include "emu.h" #include "ctrl.h" // slot devices #include "handctrl.h" //************************************************************************** // GLOBAL VARIABLES //************************************************************************** const device_type INTV_CONTROL_PORT = &device_creator; //************************************************************************** // CARD INTERFACE //************************************************************************** //------------------------------------------------- // device_intv_control_port_interface - constructor //------------------------------------------------- device_intv_control_port_interface::device_intv_control_port_interface(const machine_config &mconfig, device_t &device) : device_slot_card_interface(mconfig,device) { m_port = dynamic_cast(device.owner()); } //------------------------------------------------- // ~device_intv_control_port_interface - destructor //------------------------------------------------- device_intv_control_port_interface::~device_intv_control_port_interface() { } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // intv_control_port_device - constructor //------------------------------------------------- intv_control_port_device::intv_control_port_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, INTV_CONTROL_PORT, "Mattel Intellivision control port", tag, owner, clock, "intv_control_port", __FILE__), device_slot_interface(mconfig, *this), m_device(nullptr) { } //------------------------------------------------- // intv_control_port_device - destructor //------------------------------------------------- intv_control_port_device::~intv_control_port_device() { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void intv_control_port_device::device_start() { m_device = dynamic_cast(get_card_device()); } uint8_t intv_control_port_device::read_ctrl() { uint8_t data = 0; if (m_device) data |= m_device->read_ctrl(); return data; } //------------------------------------------------- // SLOT_INTERFACE( intv_control_port_devices ) //------------------------------------------------- SLOT_INTERFACE_START( intv_control_port_devices ) SLOT_INTERFACE("handctrl", INTV_HANDCTRL) SLOT_INTERFACE_END