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-rw-r--r--src/devices/bus/saturn/rom.cpp55
1 files changed, 55 insertions, 0 deletions
diff --git a/src/devices/bus/saturn/rom.cpp b/src/devices/bus/saturn/rom.cpp
new file mode 100644
index 00000000000..7b8068735a1
--- /dev/null
+++ b/src/devices/bus/saturn/rom.cpp
@@ -0,0 +1,55 @@
+// license:BSD-3-Clause
+// copyright-holders:Fabio Priuli
+/***********************************************************************************************************
+
+ Saturn ROM cart emulation
+
+ ***********************************************************************************************************/
+
+
+#include "emu.h"
+#include "rom.h"
+
+
+//-------------------------------------------------
+// saturn_rom_device - constructor
+//-------------------------------------------------
+
+const device_type SATURN_ROM = &device_creator<saturn_rom_device>;
+
+
+saturn_rom_device::saturn_rom_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source)
+ : device_t(mconfig, type, name, tag, owner, clock, shortname, source),
+ device_sat_cart_interface( mconfig, *this )
+{
+}
+
+saturn_rom_device::saturn_rom_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+ : device_t(mconfig, SATURN_ROM, "Saturn ROM Carts", tag, owner, clock, "sat_rom", __FILE__),
+ device_sat_cart_interface( mconfig, *this )
+{
+ m_cart_type = 0xff; // actually not clear if ROM carts have a type ID like DRAM/BRAM carts
+}
+
+
+//-------------------------------------------------
+// mapper specific start/reset
+//-------------------------------------------------
+
+void saturn_rom_device::device_start()
+{
+}
+
+void saturn_rom_device::device_reset()
+{
+}
+
+
+/*-------------------------------------------------
+ mapper specific handlers
+ -------------------------------------------------*/
+
+READ32_MEMBER(saturn_rom_device::read_rom)
+{
+ return m_rom[offset & (m_rom_size/4 - 1)];
+}