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Diffstat (limited to 'src/devices/bus/odyssey2/chess.c')
-rw-r--r--src/devices/bus/odyssey2/chess.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/src/devices/bus/odyssey2/chess.c b/src/devices/bus/odyssey2/chess.c
new file mode 100644
index 00000000000..8885733923c
--- /dev/null
+++ b/src/devices/bus/odyssey2/chess.c
@@ -0,0 +1,60 @@
+// license:BSD-3-Clause
+// copyright-holders:Fabio Priuli
+/***********************************************************************************************************
+
+
+ Videopac Chess Module emulation
+
+ TODO:
+ - this code is just a stub... hence, almost everything is still to do!
+
+ ***********************************************************************************************************/
+
+
+#include "emu.h"
+#include "chess.h"
+
+
+//-------------------------------------------------
+// o2_chess_device - constructor
+//-------------------------------------------------
+
+const device_type O2_ROM_CHESS = &device_creator<o2_chess_device>;
+
+
+o2_chess_device::o2_chess_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+ : o2_rom_device(mconfig, O2_ROM_CHESS, "Odyssey 2 BASIC Carts", tag, owner, clock, "o2_chess", __FILE__),
+ m_cpu(*this, "subcpu")
+{
+}
+
+
+//-------------------------------------------------
+// MACHINE_CONFIG_FRAGMENT( o2chess )
+//-------------------------------------------------
+
+static ADDRESS_MAP_START(chess_mem, AS_PROGRAM, 8, o2_chess_device)
+ AM_RANGE(0x0000, 0x07ff) AM_READ(read_rom04)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(chess_io, AS_IO, 8, o2_chess_device)
+ ADDRESS_MAP_UNMAP_HIGH
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ADDRESS_MAP_END
+
+static MACHINE_CONFIG_FRAGMENT( o2chess )
+ MCFG_CPU_ADD("subcpu", NSC800, XTAL_4MHz)
+ MCFG_CPU_PROGRAM_MAP(chess_mem)
+ MCFG_CPU_IO_MAP(chess_io)
+MACHINE_CONFIG_END
+
+
+//-------------------------------------------------
+// machine_config_additions - device-specific
+// machine configurations
+//-------------------------------------------------
+
+machine_config_constructor o2_chess_device::device_mconfig_additions() const
+{
+ return MACHINE_CONFIG_NAME( o2chess );
+}