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// license:BSD-3-Clause
// copyright-holders:Wilbert Pol
/**********************************************************************
MSX Digital Joystick emulation
**********************************************************************/
#include "emu.h"
#include "joystick.h"
namespace {
INPUT_PORTS_START(msx_joystick)
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_BIT(0x20, IP_ACTIVE_LOW, IPT_BUTTON2)
PORT_BIT(0xc0, IP_ACTIVE_LOW, IPT_UNUSED)
INPUT_PORTS_END
class msx_joystick_device : public device_t, public device_msx_general_purpose_port_interface
{
public:
msx_joystick_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
virtual u8 read() override { return m_joy->read(); }
protected:
virtual void device_start() override { }
virtual ioport_constructor device_input_ports() const override { return INPUT_PORTS_NAME(msx_joystick); }
private:
required_ioport m_joy;
};
msx_joystick_device::msx_joystick_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
: device_t(mconfig, MSX_JOYSTICK, tag, owner, clock)
, device_msx_general_purpose_port_interface(mconfig, *this)
, m_joy(*this, "JOY")
{
}
} // anonymous namespace
DEFINE_DEVICE_TYPE_PRIVATE(MSX_JOYSTICK, device_msx_general_purpose_port_interface, msx_joystick_device, "msx_joystick", "MSX Digital Joystick")
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