diff options
Diffstat (limited to 'src/emu/bus/nes_ctrl/pachinko.c')
-rw-r--r-- | src/emu/bus/nes_ctrl/pachinko.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/emu/bus/nes_ctrl/pachinko.c b/src/emu/bus/nes_ctrl/pachinko.c new file mode 100644 index 00000000000..875aa92e771 --- /dev/null +++ b/src/emu/bus/nes_ctrl/pachinko.c @@ -0,0 +1,108 @@ +/********************************************************************** + + Nintendo Family Computer Pachinko Controller + + Copyright MESS Team. + Visit http://mamedev.org for licensing and usage restrictions. + +**********************************************************************/ + +#include "pachinko.h" + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +const device_type NES_PACHINKO = &device_creator<nes_pachinko_device>; + + +static INPUT_PORTS_START( nes_pachinko ) + PORT_START("JOYPAD") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("A") + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME("B") + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_SELECT ) + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_START ) + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY + PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY + + PORT_START("TRIGGER") + PORT_BIT( 0xff, 0, IPT_PEDAL ) PORT_MINMAX(0, 0x63) PORT_SENSITIVITY(25) PORT_KEYDELTA(20) +INPUT_PORTS_END + +//------------------------------------------------- +// input_ports - device-specific input ports +//------------------------------------------------- + +ioport_constructor nes_pachinko_device::device_input_ports() const +{ + return INPUT_PORTS_NAME( nes_pachinko ); +} + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// nes_pachinko_device - constructor +//------------------------------------------------- + +nes_pachinko_device::nes_pachinko_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : + device_t(mconfig, NES_PACHINKO, "Famicom Pachinko Controller", tag, owner, clock, "nes_pachinko", __FILE__), + device_nes_control_port_interface(mconfig, *this), + m_joypad(*this, "JOYPAD"), + m_trigger(*this, "TRIGGER") +{ +} + + +//------------------------------------------------- +// device_start +//------------------------------------------------- + +void nes_pachinko_device::device_start() +{ + save_item(NAME(m_latch)); +} + + +//------------------------------------------------- +// device_reset +//------------------------------------------------- + +void nes_pachinko_device::device_reset() +{ + m_latch = 0; +} + + +//------------------------------------------------- +// read +//------------------------------------------------- + +UINT8 nes_pachinko_device::read_exp(offs_t offset) +{ + UINT8 ret = 0; + // this controller behaves like a standard P3 joypad, with longer stream of inputs + if (offset == 0) //$4016 + { + ret |= (m_latch & 1) << 1; + m_latch >>= 1; + } + return ret; +} + +//------------------------------------------------- +// write +//------------------------------------------------- + +void nes_pachinko_device::write(UINT8 data) +{ + if (data & 0x01) + return; + + m_latch = m_joypad->read(); + m_latch |= ((m_trigger->read() ^ 0xff) & 0xff) << 8; + m_latch |= 0xff0000; +} |