summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/cbm2/user.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/bus/cbm2/user.cpp')
-rw-r--r--src/devices/bus/cbm2/user.cpp77
1 files changed, 77 insertions, 0 deletions
diff --git a/src/devices/bus/cbm2/user.cpp b/src/devices/bus/cbm2/user.cpp
new file mode 100644
index 00000000000..6383f39b061
--- /dev/null
+++ b/src/devices/bus/cbm2/user.cpp
@@ -0,0 +1,77 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Commodore CBM-II User Port emulation
+
+**********************************************************************/
+
+#include "user.h"
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type CBM2_USER_PORT = &device_creator<cbm2_user_port_device>;
+
+
+
+//**************************************************************************
+// CARD INTERFACE
+//**************************************************************************
+
+//-------------------------------------------------
+// device_cbm2_user_port_interface - constructor
+//-------------------------------------------------
+
+device_cbm2_user_port_interface::device_cbm2_user_port_interface(const machine_config &mconfig, device_t &device) :
+ device_slot_card_interface(mconfig,device)
+{
+ m_slot = dynamic_cast<cbm2_user_port_device *>(device.owner());
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// cbm2_user_port_device - constructor
+//-------------------------------------------------
+
+cbm2_user_port_device::cbm2_user_port_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, CBM2_USER_PORT, "CBM2 user port", tag, owner, clock, "cbm2_user_port", __FILE__),
+ device_slot_interface(mconfig, *this),
+ m_write_irq(*this),
+ m_write_sp(*this),
+ m_write_cnt(*this),
+ m_write_flag(*this)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void cbm2_user_port_device::device_start()
+{
+ m_card = dynamic_cast<device_cbm2_user_port_interface *>(get_card_device());
+
+ // resolve callbacks
+ m_write_irq.resolve_safe();
+ m_write_sp.resolve_safe();
+ m_write_cnt.resolve_safe();
+ m_write_flag.resolve_safe();
+}
+
+
+//-------------------------------------------------
+// SLOT_INTERFACE( cbm2_user_port_cards )
+//-------------------------------------------------
+
+SLOT_INTERFACE_START( cbm2_user_port_cards )
+SLOT_INTERFACE_END