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Diffstat (limited to 'src/devices/bus/vtech/memexp/rtty.cpp')
-rw-r--r--src/devices/bus/vtech/memexp/rtty.cpp88
1 files changed, 88 insertions, 0 deletions
diff --git a/src/devices/bus/vtech/memexp/rtty.cpp b/src/devices/bus/vtech/memexp/rtty.cpp
new file mode 100644
index 00000000000..bf9930c3dcf
--- /dev/null
+++ b/src/devices/bus/vtech/memexp/rtty.cpp
@@ -0,0 +1,88 @@
+// license:GPL-2.0+
+// copyright-holders:Dirk Best
+/***************************************************************************
+
+ Dick Smith VZ-200/300 RTTY Cartridge (K-6318)
+
+***************************************************************************/
+
+#include "rtty.h"
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type RTTY_INTERFACE = &device_creator<rtty_interface_device>;
+
+//-------------------------------------------------
+// rom_region - device-specific ROM region
+//-------------------------------------------------
+
+ROM_START( rtty )
+ ROM_REGION(0x1000, "software", 0)
+ ROM_LOAD("vzrtty.ic3", 0x0000, 0x1000, CRC(ccf4289b) SHA1(de737ef0e0b582b3102da473836af1fa159a2e78))
+ROM_END
+
+const rom_entry *rtty_interface_device::device_rom_region() const
+{
+ return ROM_NAME( rtty );
+}
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// rtty_interface_device - constructor
+//-------------------------------------------------
+
+rtty_interface_device::rtty_interface_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, RTTY_INTERFACE, "DSE VZ-200/300 RTTY Interface", tag, owner, clock, "vz_rtty", __FILE__),
+ device_memexp_interface(mconfig, *this)
+{
+}
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void rtty_interface_device::device_start()
+{
+}
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void rtty_interface_device::device_reset()
+{
+ // program
+ m_slot->m_program->install_rom(0x4000, 0x4fff, 0, 0x1000, memregion("software")->base());
+
+ // data
+ m_slot->m_program->install_read_handler(0x5000, 0x57ff, read8_delegate(FUNC(rtty_interface_device::receive_data_r), this));
+ m_slot->m_program->install_write_handler(0x5800, 0x5fff, write8_delegate(FUNC(rtty_interface_device::transmit_data_w), this));
+ m_slot->m_program->install_write_handler(0x6000, 0x67ff, write8_delegate(FUNC(rtty_interface_device::relay_w), this));
+}
+
+
+//**************************************************************************
+// IMPLEMENTATION
+//**************************************************************************
+
+READ8_MEMBER( rtty_interface_device::receive_data_r )
+{
+ return 0xff;
+}
+
+WRITE8_MEMBER( rtty_interface_device::transmit_data_w )
+{
+ logerror("transmit_w: %d\n", BIT(data, 7));
+}
+
+WRITE8_MEMBER( rtty_interface_device::relay_w )
+{
+ logerror("relay_w: %d\n", BIT(data, 7));
+}