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-rw-r--r--src/devices/bus/c64/final.c134
1 files changed, 134 insertions, 0 deletions
diff --git a/src/devices/bus/c64/final.c b/src/devices/bus/c64/final.c
new file mode 100644
index 00000000000..8e29c886a16
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+++ b/src/devices/bus/c64/final.c
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Final Cartridge emulation
+
+**********************************************************************/
+
+#include "final.h"
+
+
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+const device_type C64_FINAL = &device_creator<c64_final_cartridge_device>;
+
+
+//-------------------------------------------------
+// INPUT_CHANGED_MEMBER( freeze )
+//-------------------------------------------------
+
+INPUT_CHANGED_MEMBER( c64_final_cartridge_device::freeze )
+{
+ if (newval)
+ {
+ m_game = 0;
+ }
+
+ m_slot->nmi_w(newval);
+}
+
+
+//-------------------------------------------------
+// INPUT_PORTS( c64_final )
+//-------------------------------------------------
+
+static INPUT_PORTS_START( c64_final )
+ PORT_START("SW")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Reset") PORT_CODE(KEYCODE_F11) PORT_WRITE_LINE_DEVICE_MEMBER(DEVICE_SELF_OWNER, c64_expansion_slot_device, reset_w)
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("Freeze") PORT_CODE(KEYCODE_F12) PORT_CHANGED_MEMBER(DEVICE_SELF, c64_final_cartridge_device, freeze, 0)
+INPUT_PORTS_END
+
+
+//-------------------------------------------------
+// input_ports - device-specific input ports
+//-------------------------------------------------
+
+ioport_constructor c64_final_cartridge_device::device_input_ports() const
+{
+ return INPUT_PORTS_NAME( c64_final );
+}
+
+
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// c64_final_cartridge_device - constructor
+//-------------------------------------------------
+
+c64_final_cartridge_device::c64_final_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
+ device_t(mconfig, C64_FINAL, "C64 Final cartridge", tag, owner, clock, "c64_final", __FILE__),
+ device_c64_expansion_card_interface(mconfig, *this)
+{
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void c64_final_cartridge_device::device_start()
+{
+}
+
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void c64_final_cartridge_device::device_reset()
+{
+ m_exrom = 0;
+ m_game = 0;
+}
+
+
+//-------------------------------------------------
+// c64_cd_r - cartridge data read
+//-------------------------------------------------
+
+UINT8 c64_final_cartridge_device::c64_cd_r(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2)
+{
+ if (!roml || !romh || !io1 || !io2)
+ {
+ data = m_roml[offset & 0x3fff];
+ }
+
+ if (!io1)
+ {
+ m_game = 1;
+ m_exrom = 1;
+ }
+ else if (!io2)
+ {
+ m_exrom = 0;
+ m_game = 0;
+ }
+
+ return data;
+}
+
+
+//-------------------------------------------------
+// c64_cd_w - cartridge data write
+//-------------------------------------------------
+
+void c64_final_cartridge_device::c64_cd_w(address_space &space, offs_t offset, UINT8 data, int sphi2, int ba, int roml, int romh, int io1, int io2)
+{
+ if (!io1)
+ {
+ m_game = 1;
+ m_exrom = 1;
+ }
+ else if (!io2)
+ {
+ m_exrom = 0;
+ m_game = 0;
+ }
+}