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+// license:BSD-3-Clause
+// copyright-holders:AJR
+/****************************************************************************
+
+ Roland RF5C36 (15229840) & SA-16 (15229874) Sampler Custom ICs
+
+ Skeleton devices.
+
+ Waveform data is 12 bits, and is normally stored in DRAM banks, though
+ at least one Roland product also uses ROMs. 16-bit output can be
+ connected directly to a PCM54 or MD6209 DAC or conditioned through a
+ MB654419 TVF interface.
+
+ Sampling rate is either 30kHz or 15kHz.
+
+****************************************************************************/
+
+#include "emu.h"
+#include "sa16.h"
+
+//**************************************************************************
+// GLOBAL VARIABLES
+//**************************************************************************
+
+// device type definitions
+DEFINE_DEVICE_TYPE(RF5C36, rf5c36_device, "rf5c36", "Roland RF5C36 Sampler")
+DEFINE_DEVICE_TYPE(SA16, sa16_device, "sa16", "Roland SA-16 Sampler")
+
+
+//**************************************************************************
+// DEVICE IMPLEMENTATION
+//**************************************************************************
+
+//-------------------------------------------------
+// sa16_base_device - constructor
+//-------------------------------------------------
+
+sa16_base_device::sa16_base_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock)
+ : device_t(mconfig, type, tag, owner, clock)
+ , m_int_callback(*this)
+ , m_sh_callback(*this)
+{
+}
+
+
+//-------------------------------------------------
+// rf5c36_device - constructor
+//-------------------------------------------------
+
+rf5c36_device::rf5c36_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : sa16_base_device(mconfig, RF5C36, tag, owner, clock)
+{
+}
+
+
+//-------------------------------------------------
+// sa16_device - constructor
+//-------------------------------------------------
+
+sa16_device::sa16_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+ : sa16_base_device(mconfig, SA16, tag, owner, clock)
+{
+}
+
+
+//-------------------------------------------------
+// device_resolve_objects - resolve objects that
+// may be needed for other devices to set
+// initial conditions at start time
+//-------------------------------------------------
+
+void sa16_base_device::device_resolve_objects()
+{
+ m_int_callback.resolve_safe();
+ m_sh_callback.resolve_safe();
+}
+
+
+//-------------------------------------------------
+// device_start - device-specific startup
+//-------------------------------------------------
+
+void sa16_base_device::device_start()
+{
+}
+
+
+//-------------------------------------------------
+// device_reset - device-specific reset
+//-------------------------------------------------
+
+void sa16_base_device::device_reset()
+{
+}
+
+
+//-------------------------------------------------
+// read - read data to CPU bus
+//-------------------------------------------------
+
+u8 sa16_base_device::read(offs_t offset)
+{
+ return 0;
+}
+
+
+//-------------------------------------------------
+// write - write data from CPU bus
+//-------------------------------------------------
+
+void sa16_base_device::write(offs_t offset, u8 data)
+{
+}