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-rw-r--r--src/devices/bus/spectrum/specdrum.cpp73
1 files changed, 0 insertions, 73 deletions
diff --git a/src/devices/bus/spectrum/specdrum.cpp b/src/devices/bus/spectrum/specdrum.cpp
deleted file mode 100644
index 9c809a1b36a..00000000000
--- a/src/devices/bus/spectrum/specdrum.cpp
+++ /dev/null
@@ -1,73 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Nigel Barnes
-/**********************************************************************
-
- Cheetah Marketing SpecDrum emulation
-
-**********************************************************************/
-
-#include "emu.h"
-#include "specdrum.h"
-#include "sound/volt_reg.h"
-#include "speaker.h"
-
-
-//**************************************************************************
-// DEVICE DEFINITIONS
-//**************************************************************************
-
-DEFINE_DEVICE_TYPE(SPECTRUM_SPECDRUM, spectrum_specdrum_device, "spectrum_specdrum", "SpecDrum")
-
-
-//-------------------------------------------------
-// device_add_mconfig - add device configuration
-//-------------------------------------------------
-
-void spectrum_specdrum_device::device_add_mconfig(machine_config &config)
-{
- SPEAKER(config, "speaker").front_center();
- ZN428E(config, m_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.5);
- voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref"));
- vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT);
- vref.add_route(0, "dac", -1.0, DAC_VREF_NEG_INPUT);
-}
-
-
-//**************************************************************************
-// LIVE DEVICE
-//**************************************************************************
-
-//-------------------------------------------------
-// spectrum_specdrum_device - constructor
-//-------------------------------------------------
-
-spectrum_specdrum_device::spectrum_specdrum_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
- : device_t(mconfig, SPECTRUM_SPECDRUM, tag, owner, clock)
- , device_spectrum_expansion_interface(mconfig, *this)
- , m_dac(*this, "dac")
-{
-}
-
-
-//-------------------------------------------------
-// device_start - device-specific startup
-//-------------------------------------------------
-
-void spectrum_specdrum_device::device_start()
-{
-}
-
-
-//**************************************************************************
-// IMPLEMENTATION
-//**************************************************************************
-
-void spectrum_specdrum_device::iorq_w(offs_t offset, uint8_t data)
-{
- switch (offset & 0x00ff)
- {
- case 0xdf:
- m_dac->write(data);
- break;
- }
-}