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author Miodrag Milanovic <mmicko@gmail.com>2012-08-21 10:41:19 +0000
committer Miodrag Milanovic <mmicko@gmail.com>2012-08-21 10:41:19 +0000
commit7285b359d259b2ae0fdf85096571c386ec8c991a (patch)
treea027aff57f1a255f9ec6cfd3b68cabe4b6683998 /src/mess/machine/vip_byteio.c
parent67c425e90757876a6716b7867df30c0149912e74 (diff)
Merge of MESS sources (no whatsnew)
Diffstat (limited to 'src/mess/machine/vip_byteio.c')
-rw-r--r--src/mess/machine/vip_byteio.c132
1 files changed, 132 insertions, 0 deletions
diff --git a/src/mess/machine/vip_byteio.c b/src/mess/machine/vip_byteio.c
new file mode 100644
index 00000000000..b7c4109eb0a
--- /dev/null
+++ b/src/mess/machine/vip_byteio.c
@@ -0,0 +1,132 @@
+/**********************************************************************
+
+ RCA Cosmac VIP Byte Input/Output port emulation
+
+ Copyright MESS Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************/
+
+#include "machine/vip_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());
+}
+
+
+//-------------------------------------------------
+// ~device_vip_byteio_port_interface - destructor
+//-------------------------------------------------
+
+device_vip_byteio_port_interface::~device_vip_byteio_port_interface()
+{
+}
+
+
+
+//**************************************************************************
+// 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),
+ device_slot_interface(mconfig, *this)
+{
+}
+
+
+//-------------------------------------------------
+// vip_byteio_port_device - destructor
+//-------------------------------------------------
+
+vip_byteio_port_device::~vip_byteio_port_device()
+{
+}
+
+
+//-------------------------------------------------
+// device_config_complete - perform any
+// operations now that the configuration is
+// complete
+//-------------------------------------------------
+
+void vip_byteio_port_device::device_config_complete()
+{
+ // inherit a copy of the static data
+ const vip_byteio_port_interface *intf = reinterpret_cast<const vip_byteio_port_interface *>(static_config());
+ if (intf != NULL)
+ {
+ *static_cast<vip_byteio_port_interface *>(this) = *intf;
+ }
+
+ // or initialize to defaults if none provided
+ else
+ {
+ memset(&m_out_inst_cb, 0, sizeof(m_out_inst_cb));
+ }
+}
+
+
+//-------------------------------------------------
+// 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_out_inst_func.resolve(m_out_inst_cb, *this);
+}
+
+
+//-------------------------------------------------
+// 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); }
+
+WRITE_LINE_MEMBER( vip_byteio_port_device::inst_w ) { m_out_inst_func(state); }
+
+
+//-------------------------------------------------
+// SLOT_INTERFACE( vip_byteio_cards )
+//-------------------------------------------------
+
+SLOT_INTERFACE_START( vip_byteio_cards )
+ //SLOT_INTERFACE("exp2", VP576_BYTEIO)
+ SLOT_INTERFACE("ascii", VP620)
+SLOT_INTERFACE_END