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Diffstat (limited to 'src/mame/drivers/atari_s2.cpp')
-rw-r--r--src/mame/drivers/atari_s2.cpp4
1 files changed, 0 insertions, 4 deletions
diff --git a/src/mame/drivers/atari_s2.cpp b/src/mame/drivers/atari_s2.cpp
index b7208b9d4b7..381f360bd8b 100644
--- a/src/mame/drivers/atari_s2.cpp
+++ b/src/mame/drivers/atari_s2.cpp
@@ -28,7 +28,6 @@ ToDo:
#include "machine/timer.h"
#include "machine/watchdog.h"
#include "sound/dac.h"
-#include "sound/volt_reg.h"
#include "speaker.h"
#include "atari_s2.lh"
@@ -493,9 +492,6 @@ void atari_s2_state::atari_s2(machine_config &config)
DAC_4BIT_BINARY_WEIGHTED(config, m_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.15); // r23-r26 (68k,33k,18k,8.2k)
DAC_3BIT_BINARY_WEIGHTED(config, m_dac1, 0).add_route(ALL_OUTPUTS, "speaker", 0.15); // r18-r20 (100k,47k,100k)
- voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref"));
- vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT).add_route(0, "dac", -1.0, DAC_VREF_NEG_INPUT);
- vref.add_route(0, "dac1", 1.0, DAC_VREF_POS_INPUT).add_route(0, "dac1", -1.0, DAC_VREF_NEG_INPUT);
/* Video */
config.set_default_layout(layout_atari_s2);