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Diffstat (limited to 'src/mame/audio/n8080.cpp')
-rw-r--r--src/mame/audio/n8080.cpp8
1 files changed, 0 insertions, 8 deletions
diff --git a/src/mame/audio/n8080.cpp b/src/mame/audio/n8080.cpp
index 4d86d867692..16f78afbedd 100644
--- a/src/mame/audio/n8080.cpp
+++ b/src/mame/audio/n8080.cpp
@@ -8,7 +8,6 @@
#include "emu.h"
#include "includes/n8080.h"
-#include "sound/volt_reg.h"
#include "speaker.h"
@@ -474,8 +473,6 @@ void spacefev_state::spacefev_sound(machine_config &config)
SPEAKER(config, "speaker").front_center();
DAC_1BIT(config, m_n8080_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.15);
- voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref", 0));
- vref.add_route(0, "n8080_dac", 1.0, DAC_VREF_POS_INPUT);
SN76477(config, m_sn);
m_sn->set_noise_params(RES_K(36), RES_K(150), CAP_N(1));
@@ -508,8 +505,6 @@ void sheriff_state::sheriff_sound(machine_config &config)
SPEAKER(config, "speaker").front_center();
DAC_1BIT(config, m_n8080_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.15);
- voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref", 0));
- vref.add_route(0, "n8080_dac", 1.0, DAC_VREF_POS_INPUT);
SN76477(config, m_sn);
m_sn->set_noise_params(RES_K(36), RES_K(100), CAP_N(1));
@@ -545,7 +540,4 @@ void helifire_state::helifire_sound(machine_config &config)
/* sound hardware */
SPEAKER(config, "speaker").front_center();
DAC_8BIT_R2R(config, m_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.15); // unknown DAC
- voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref", 0));
- vref.add_route(0, "helifire_dac", 1.0, DAC_VREF_POS_INPUT);
- vref.add_route(0, "helifire_dac", -1.0, DAC_VREF_NEG_INPUT);
}