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Diffstat (limited to 'src/devices/bus/vcs_ctrl/lightpen.c')
-rw-r--r--src/devices/bus/vcs_ctrl/lightpen.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/src/devices/bus/vcs_ctrl/lightpen.c b/src/devices/bus/vcs_ctrl/lightpen.c
new file mode 100644
index 00000000000..8531930b2a1
--- /dev/null
+++ b/src/devices/bus/vcs_ctrl/lightpen.c
@@ -0,0 +1,85 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Atari Video Computer System lightpen emulation
+
+**********************************************************************/
+
+#include "lightpen.h"
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type VCS_LIGHTPEN = &device_creator<vcs_lightpen_device>;
+
+
+INPUT_CHANGED_MEMBER( vcs_lightpen_device::trigger )
+{
+ // TODO trigger timer at correct screen position
+ m_port->trigger_w(newval);
+}
+
+
+static INPUT_PORTS_START( vcs_lightpen )
+ PORT_START("JOY")
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_CHANGED_MEMBER(DEVICE_SELF, vcs_lightpen_device, trigger, 0)
+ PORT_BIT( 0xdf, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START("LIGHTX")
+ PORT_BIT( 0xff, 0x00, IPT_LIGHTGUN_X) PORT_CROSSHAIR(X, 1.0, 0.0, 0) PORT_SENSITIVITY(45) PORT_KEYDELTA(15)
+
+ PORT_START("LIGHTY")
+ PORT_BIT( 0xff, 0x00, IPT_LIGHTGUN_Y) PORT_CROSSHAIR(Y, 1.0, 0.0, 0) PORT_SENSITIVITY(45) PORT_KEYDELTA(15)
+INPUT_PORTS_END
+
+
+//-------------------------------------------------
+// input_ports - device-specific input ports
+//-------------------------------------------------
+
+ioport_constructor vcs_lightpen_device::device_input_ports() const
+{
+ return INPUT_PORTS_NAME( vcs_lightpen );
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// vcs_lightpen_device - constructor
+//-------------------------------------------------
+
+vcs_lightpen_device::vcs_lightpen_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, VCS_LIGHTPEN, "Atari / CBM Light Pen", tag, owner, clock, "vcs_lightpen", __FILE__),
+ device_vcs_control_port_interface(mconfig, *this),
+ m_joy(*this, "JOY"),
+ m_lightx(*this, "LIGHTX"),
+ m_lighty(*this, "LIGHTY")
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void vcs_lightpen_device::device_start()
+{
+}
+
+
+//-------------------------------------------------
+// vcs_joy_r - lightpen read
+//-------------------------------------------------
+
+UINT8 vcs_lightpen_device::vcs_joy_r()
+{
+ return m_joy->read();
+}