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-rw-r--r--src/mess/machine/c64/4ksa.c110
1 files changed, 110 insertions, 0 deletions
diff --git a/src/mess/machine/c64/4ksa.c b/src/mess/machine/c64/4ksa.c
new file mode 100644
index 00000000000..190e16105d7
--- /dev/null
+++ b/src/mess/machine/c64/4ksa.c
@@ -0,0 +1,110 @@
+/**********************************************************************
+
+ Kingsoft 4-Player Adapter emulation
+
+ http://hitmen.c02.at/html/hardware.html
+
+ Copyright MESS Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************/
+
+#include "4ksa.h"
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type C64_4KSA = &device_creator<c64_4ksa_device>;
+
+
+//-------------------------------------------------
+// INPUT_PORTS( c64_4ksa )
+//-------------------------------------------------
+
+static INPUT_PORTS_START( c64_4ksa )
+ PORT_START("SP2")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_WRITE_LINE_DEVICE_MEMBER(DEVICE_SELF_OWNER, c64_user_port_device, cia_sp2_w)
+
+ PORT_START("PB")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1)
+
+ PORT_START("PA2")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1)
+INPUT_PORTS_END
+
+
+//-------------------------------------------------
+// input_ports - device-specific input ports
+//-------------------------------------------------
+
+ioport_constructor c64_4ksa_device::device_input_ports() const
+{
+ return INPUT_PORTS_NAME( c64_4ksa );
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// c64_4ksa_device - constructor
+//-------------------------------------------------
+
+c64_4ksa_device::c64_4ksa_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, C64_4KSA, "C64 Kingsoft 4-Player Adapter", tag, owner, clock, "c64_4ksa", __FILE__),
+ device_c64_user_port_interface(mconfig, *this),
+ m_pb(*this, "PB"),
+ m_pa2(*this, "PA2")
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void c64_4ksa_device::device_start()
+{
+}
+
+
+//-------------------------------------------------
+// c64_pb_r - port B read
+//-------------------------------------------------
+
+UINT8 c64_4ksa_device::c64_pb_r(address_space &space, offs_t offset)
+{
+ return m_pb->read();
+}
+
+
+//-------------------------------------------------
+// c64_pb_w - port B write
+//-------------------------------------------------
+
+int c64_4ksa_device::c64_pa2_r()
+{
+ return BIT(m_pa2->read(), 0);
+}
+
+
+//-------------------------------------------------
+// c64_cnt1_w - CNT 1 write
+//-------------------------------------------------
+
+void c64_4ksa_device::c64_cnt1_w(int level)
+{
+ m_slot->cia_cnt2_w(level);
+}