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// 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<electron_expansion_slot_device *>(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;
}
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