summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/saturn/dram.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/bus/saturn/dram.h')
-rw-r--r--src/devices/bus/saturn/dram.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/src/devices/bus/saturn/dram.h b/src/devices/bus/saturn/dram.h
new file mode 100644
index 00000000000..53bf97d8468
--- /dev/null
+++ b/src/devices/bus/saturn/dram.h
@@ -0,0 +1,49 @@
+// license:BSD-3-Clause
+// copyright-holders:Fabio Priuli
+#ifndef __SAT_DRAM_H
+#define __SAT_DRAM_H
+
+#include "sat_slot.h"
+
+
+// ======================> saturn_dram_device
+
+class saturn_dram_device : public device_t,
+ public device_sat_cart_interface
+{
+public:
+ // construction/destruction
+ saturn_dram_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-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+
+ // reading and writing
+ virtual DECLARE_READ32_MEMBER(read_ext_dram0);
+ virtual DECLARE_READ32_MEMBER(read_ext_dram1);
+ virtual DECLARE_WRITE32_MEMBER(write_ext_dram0);
+ virtual DECLARE_WRITE32_MEMBER(write_ext_dram1);
+};
+
+class saturn_dram8mb_device : public saturn_dram_device
+{
+public:
+ // construction/destruction
+ saturn_dram8mb_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+};
+
+class saturn_dram32mb_device : public saturn_dram_device
+{
+public:
+ // construction/destruction
+ saturn_dram32mb_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+};
+
+
+
+// device type definition
+extern const device_type SATURN_DRAM_8MB;
+extern const device_type SATURN_DRAM_32MB;
+
+#endif