summaryrefslogtreecommitdiffstatshomepage
path: root/src/mess/machine/vcsctrl.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mess/machine/vcsctrl.c')
-rw-r--r--src/mess/machine/vcsctrl.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/src/mess/machine/vcsctrl.c b/src/mess/machine/vcsctrl.c
new file mode 100644
index 00000000000..d64fb07bb61
--- /dev/null
+++ b/src/mess/machine/vcsctrl.c
@@ -0,0 +1,83 @@
+/**********************************************************************
+
+ Atari Video Computer System controller port emulation
+
+ Copyright MESS Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************/
+
+#include "machine/vcsctrl.h"
+
+
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+const device_type VCS_CONTROL_PORT = &device_creator<vcs_control_port_device>;
+
+
+
+//**************************************************************************
+// CARD INTERFACE
+//**************************************************************************
+
+//-------------------------------------------------
+// device_vcs_control_port_interface - constructor
+//-------------------------------------------------
+
+device_vcs_control_port_interface::device_vcs_control_port_interface(const machine_config &mconfig, device_t &device)
+ : device_slot_card_interface(mconfig,device)
+{
+ m_port = dynamic_cast<vcs_control_port_device *>(device.owner());
+}
+
+
+//-------------------------------------------------
+// ~device_vcs_control_port_interface - destructor
+//-------------------------------------------------
+
+device_vcs_control_port_interface::~device_vcs_control_port_interface()
+{
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// vcs_control_port_device - constructor
+//-------------------------------------------------
+
+vcs_control_port_device::vcs_control_port_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, VCS_CONTROL_PORT, "Atari VCS control port", tag, owner, clock),
+ device_slot_interface(mconfig, *this)
+{
+}
+
+
+//-------------------------------------------------
+// vcs_control_port_device - destructor
+//-------------------------------------------------
+
+vcs_control_port_device::~vcs_control_port_device()
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void vcs_control_port_device::device_start()
+{
+ m_device = dynamic_cast<device_vcs_control_port_interface *>(get_card_device());
+}
+
+
+READ8_MEMBER( vcs_control_port_device::joy_r ) { UINT8 data = 0xff; if (m_device != NULL) data = m_device->vcs_joy_r(); return data; }
+READ8_MEMBER( vcs_control_port_device::pot_x_r ) { UINT8 data = 0xff; if (m_device != NULL) data = m_device->vcs_pot_x_r(); return data; }
+READ8_MEMBER( vcs_control_port_device::pot_y_r ) { UINT8 data = 0xff; if (m_device != NULL) data = m_device->vcs_pot_y_r(); return data; }