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Diffstat (limited to 'src/devices/bus/einstein/userport/mouse.cpp')
-rw-r--r--src/devices/bus/einstein/userport/mouse.cpp106
1 files changed, 106 insertions, 0 deletions
diff --git a/src/devices/bus/einstein/userport/mouse.cpp b/src/devices/bus/einstein/userport/mouse.cpp
new file mode 100644
index 00000000000..945bff5d37c
--- /dev/null
+++ b/src/devices/bus/einstein/userport/mouse.cpp
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+// license: GPL-2.0+
+// copyright-holders: Dirk Best
+/***************************************************************************
+
+ Einstein Mouse
+
+ TODO: Verify implementation (mouse directions are digital only?)
+
+***************************************************************************/
+
+#include "emu.h"
+#include "mouse.h"
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+DEFINE_DEVICE_TYPE(EINSTEIN_MOUSE, einstein_mouse_device, "einstein_mouse", "Einstein Mouse")
+
+//-------------------------------------------------
+// input_ports - device-specific input ports
+//-------------------------------------------------
+
+static INPUT_PORTS_START( mouse )
+ PORT_START("mouse_b")
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(1) PORT_NAME("Mouse Left Button")
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_BUTTON2) PORT_PLAYER(1) PORT_NAME("Mouse Right Button")
+
+ PORT_START("mouse_x")
+ PORT_BIT(0xff, 0x00, IPT_MOUSE_X) PORT_PLAYER(1) PORT_SENSITIVITY(100) PORT_KEYDELTA(5)
+
+ PORT_START("mouse_y")
+ PORT_BIT(0xff, 0x00, IPT_MOUSE_Y) PORT_PLAYER(1) PORT_SENSITIVITY(100) PORT_KEYDELTA(5)
+INPUT_PORTS_END
+
+ioport_constructor einstein_mouse_device::device_input_ports() const
+{
+ return INPUT_PORTS_NAME( mouse );
+}
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// einstein_speech_device - constructor
+//-------------------------------------------------
+
+einstein_mouse_device::einstein_mouse_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
+ device_t(mconfig, EINSTEIN_MOUSE, tag, owner, clock),
+ device_einstein_userport_interface(mconfig, *this),
+ m_mouse_b(*this, "mouse_b"),
+ m_mouse_x(*this, "mouse_x"),
+ m_mouse_y(*this, "mouse_y"),
+ m_x(0), m_y(0)
+{
+}
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void einstein_mouse_device::device_start()
+{
+ // register for save states
+ save_item(NAME(m_x));
+ save_item(NAME(m_y));
+}
+
+
+//**************************************************************************
+// IMPLEMENTATION
+//**************************************************************************
+
+// 7------- not used
+// -6------ not used
+// --5----- right button
+// ---4---- left button
+// ----3--- right
+// -----2-- left
+// ------1- down
+// -------0 up
+
+uint8_t einstein_mouse_device::read()
+{
+ uint8_t data = 0;
+
+ uint8_t x = m_mouse_x->read();
+ uint8_t y = m_mouse_y->read();
+
+ int dx = m_x - x;
+ int dy = m_y - y;
+
+ data |= m_mouse_b->read() << 4;
+ data |= (dx < 0) ? 0 : 1 << 3;
+ data |= (dx > 0) ? 0 : 1 << 2;
+ data |= (dy < 0) ? 0 : 1 << 1;
+ data |= (dy > 0) ? 0 : 1 << 0;
+
+ m_x = x;
+ m_y = y;
+
+ return data;
+}