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-rw-r--r--src/mess/machine/c64_4dxh.c109
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diff --git a/src/mess/machine/c64_4dxh.c b/src/mess/machine/c64_4dxh.c
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+++ b/src/mess/machine/c64_4dxh.c
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+/**********************************************************************
+
+ The Digital Excess & Hitmen 4-Player Joystick adapter emulation
+
+ http://hitmen.c02.at/html/hardware.html
+
+ Copyright MESS Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************/
+
+#include "c64_4dxh.h"
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type C64_4DXH = &device_creator<c64_4dxh_device>;
+
+
+INPUT_CHANGED_MEMBER( c64_4dxh_device::fire4 )
+{
+ m_slot->sp2_w(newval);
+}
+
+static INPUT_PORTS_START( c64_4player )
+ PORT_START("SP2")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_CHANGED_MEMBER(DEVICE_SELF, c64_4dxh_device, fire4, 0)
+
+ PORT_START("PB")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
+
+ PORT_START("PA2")
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
+INPUT_PORTS_END
+
+
+//-------------------------------------------------
+// input_ports - device-specific input ports
+//-------------------------------------------------
+
+ioport_constructor c64_4dxh_device::device_input_ports() const
+{
+ return INPUT_PORTS_NAME( c64_4player );
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// c64_4dxh_device - constructor
+//-------------------------------------------------
+
+c64_4dxh_device::c64_4dxh_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, C64_4DXH, "C64 DXH 4-Player Adapter", tag, owner, clock),
+ device_c64_user_port_interface(mconfig, *this)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void c64_4dxh_device::device_start()
+{
+}
+
+
+//-------------------------------------------------
+// c64_pb_r - port B read
+//-------------------------------------------------
+
+UINT8 c64_4dxh_device::c64_pb_r(address_space &space, offs_t offset)
+{
+ return ioport("PB")->read();
+}
+
+
+//-------------------------------------------------
+// c64_pb_w - port B write
+//-------------------------------------------------
+
+int c64_4dxh_device::c64_pa2_r()
+{
+ return BIT(ioport("PA2")->read(), 0);
+}
+
+
+//-------------------------------------------------
+// c64_cnt1_w - CNT 1 write
+//-------------------------------------------------
+
+void c64_4dxh_device::c64_cnt1_w(int level)
+{
+ m_slot->cnt2_w(level);
+}