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Diffstat (limited to 'src/devices/bus/vtech/ioexp/lpen.cpp')
-rw-r--r--src/devices/bus/vtech/ioexp/lpen.cpp63
1 files changed, 63 insertions, 0 deletions
diff --git a/src/devices/bus/vtech/ioexp/lpen.cpp b/src/devices/bus/vtech/ioexp/lpen.cpp
new file mode 100644
index 00000000000..aa0d9ee8e10
--- /dev/null
+++ b/src/devices/bus/vtech/ioexp/lpen.cpp
@@ -0,0 +1,63 @@
+// license: GPL-2.0+
+// copyright-holders: Dirk Best
+/***************************************************************************
+
+ VTech Laser Lightpen Interface
+
+ Skeleton just to document the I/O ports used
+
+***************************************************************************/
+
+#include "emu.h"
+#include "lpen.h"
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+DEFINE_DEVICE_TYPE(VTECH_LPEN_INTERFACE, vtech_lpen_interface_device, "vtech_lpen", "Laser/VZ Lightpen Interface")
+
+//-------------------------------------------------
+// io_map - memory space address map
+//-------------------------------------------------
+
+void vtech_lpen_interface_device::io_map(address_map &map)
+{
+ map.unmap_value_high();
+ map(0x40, 0x4f).r(FUNC(vtech_lpen_interface_device::lpen_r));
+}
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// vtech_lpen_interface_device - constructor
+//-------------------------------------------------
+
+vtech_lpen_interface_device::vtech_lpen_interface_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
+ vtech_ioexp_device(mconfig, VTECH_LPEN_INTERFACE, tag, owner, clock)
+{
+}
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void vtech_lpen_interface_device::device_start()
+{
+ vtech_ioexp_device::device_start();
+}
+
+
+//**************************************************************************
+// IMPLEMENTATION
+//**************************************************************************
+
+uint8_t vtech_lpen_interface_device::lpen_r(offs_t offset)
+{
+ logerror("lpen_r %02x\n", offset);
+ return 0xff;
+}