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-rw-r--r--src/devices/bus/vip/byteio.cpp88
1 files changed, 88 insertions, 0 deletions
diff --git a/src/devices/bus/vip/byteio.cpp b/src/devices/bus/vip/byteio.cpp
new file mode 100644
index 00000000000..bdebad76dba
--- /dev/null
+++ b/src/devices/bus/vip/byteio.cpp
@@ -0,0 +1,88 @@
+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ RCA Cosmac VIP Byte Input/Output port emulation
+
+**********************************************************************/
+
+#include "byteio.h"
+
+
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+const device_type VIP_BYTEIO_PORT = &device_creator<vip_byteio_port_device>;
+
+
+
+//**************************************************************************
+// CARD INTERFACE
+//**************************************************************************
+
+//-------------------------------------------------
+// device_vip_byteio_port_interface - constructor
+//-------------------------------------------------
+
+device_vip_byteio_port_interface::device_vip_byteio_port_interface(const machine_config &mconfig, device_t &device)
+ : device_slot_card_interface(mconfig,device)
+{
+ m_slot = dynamic_cast<vip_byteio_port_device *>(device.owner());
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// vip_byteio_port_device - constructor
+//-------------------------------------------------
+
+vip_byteio_port_device::vip_byteio_port_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, VIP_BYTEIO_PORT, "VIP byte I/O port", tag, owner, clock, "vip_byteio_port", __FILE__),
+ device_slot_interface(mconfig, *this),
+ m_write_inst(*this)
+{
+}
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void vip_byteio_port_device::device_start()
+{
+ m_cart = dynamic_cast<device_vip_byteio_port_interface *>(get_card_device());
+
+ // resolve callbacks
+ m_write_inst.resolve_safe();
+}
+
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void vip_byteio_port_device::device_reset()
+{
+}
+
+
+UINT8 vip_byteio_port_device::in_r() { UINT8 data = 0xff; if (m_cart != NULL) data = m_cart->vip_in_r(); return data; }
+void vip_byteio_port_device::out_w(UINT8 data) { if (m_cart != NULL) m_cart->vip_out_w(data); }
+READ_LINE_MEMBER( vip_byteio_port_device::ef3_r ) { int state = CLEAR_LINE; if (m_cart != NULL) state = m_cart->vip_ef3_r(); return state; }
+READ_LINE_MEMBER( vip_byteio_port_device::ef4_r ) { int state = CLEAR_LINE; if (m_cart != NULL) state = m_cart->vip_ef4_r(); return state; }
+WRITE_LINE_MEMBER( vip_byteio_port_device::q_w ) { if (m_cart != NULL) m_cart->vip_q_w(state); }
+
+
+//-------------------------------------------------
+// SLOT_INTERFACE( vip_byteio_cards )
+//-------------------------------------------------
+
+SLOT_INTERFACE_START( vip_byteio_cards )
+ //SLOT_INTERFACE("exp2", VP576_BYTEIO)
+ SLOT_INTERFACE("ascii", VP620)
+SLOT_INTERFACE_END