summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/atari_s1.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/drivers/atari_s1.cpp')
-rw-r--r--src/mame/drivers/atari_s1.cpp4
1 files changed, 0 insertions, 4 deletions
diff --git a/src/mame/drivers/atari_s1.cpp b/src/mame/drivers/atari_s1.cpp
index fbadc60c190..7313814fcf3 100644
--- a/src/mame/drivers/atari_s1.cpp
+++ b/src/mame/drivers/atari_s1.cpp
@@ -50,7 +50,6 @@ ToDo:
#include "machine/timer.h"
#include "machine/watchdog.h"
#include "sound/dac.h"
-#include "sound/volt_reg.h"
#include "speaker.h"
#include "atari_s1.lh"
@@ -463,9 +462,6 @@ void atari_s1_state::atari_s1(machine_config &config)
SPEAKER(config, "speaker").front_center();
DAC_4BIT_R2R(config, m_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.3); // unknown DAC
- 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);
/* Video */
config.set_default_layout(layout_atari_s1);