// license:BSD-3-Clause // copyright-holders:Nigel Barnes /********************************************************************** Power Software Joystick Interface **********************************************************************/ #include "emu.h" #include "pwrjoy.h" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** DEFINE_DEVICE_TYPE(ELECTRON_PWRJOY, electron_pwrjoy_device, "electron_pwrjoy", "Power Software Joystick Interface") ROM_START( pwrjoy ) // Bank 12 Expansion module operating system ROM_REGION(0x2000, "exp_rom", 0) ROM_LOAD("power_joystick.rom", 0x0000, 0x2000, CRC(44fb9360) SHA1(6d3aa85a436db952906e84839496e681ea115168)) ROM_END static INPUT_PORTS_START( pwrjoy ) PORT_START("JOY") PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_8WAY PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_8WAY PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_8WAY PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_8WAY PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_NAME("Fire") INPUT_PORTS_END //------------------------------------------------- // input_ports - device-specific input ports //------------------------------------------------- ioport_constructor electron_pwrjoy_device::device_input_ports() const { return INPUT_PORTS_NAME( pwrjoy ); } const tiny_rom_entry *electron_pwrjoy_device::device_rom_region() const { return ROM_NAME( pwrjoy ); } //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // electron_pwrjoy_device - constructor //------------------------------------------------- electron_pwrjoy_device::electron_pwrjoy_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, ELECTRON_PWRJOY, tag, owner, clock) , device_electron_expansion_interface(mconfig, *this) , m_exp_rom(*this, "exp_rom") , m_joy(*this, "JOY") { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void electron_pwrjoy_device::device_start() { address_space& space = machine().device("maincpu")->memory().space(AS_PROGRAM); m_slot = dynamic_cast(owner()); space.install_read_handler(0xfcc0, 0xfcc0, READ8_DELEGATE(electron_pwrjoy_device, joystick_r)); } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void electron_pwrjoy_device::device_reset() { machine().root_device().membank("bank2")->configure_entry(15, memregion("exp_rom")->base()); } //************************************************************************** // IMPLEMENTATION //************************************************************************** READ8_MEMBER(electron_pwrjoy_device::joystick_r) { return m_joy->read() | 0xe0; }