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Diffstat (limited to 'src/mame/drivers/ladyfrog.cpp')
-rw-r--r--src/mame/drivers/ladyfrog.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mame/drivers/ladyfrog.cpp b/src/mame/drivers/ladyfrog.cpp
index c762939ceee..b79d16c0c6a 100644
--- a/src/mame/drivers/ladyfrog.cpp
+++ b/src/mame/drivers/ladyfrog.cpp
@@ -57,6 +57,7 @@ Notes:
#include "cpu/z80/z80.h"
#include "sound/ay8910.h"
#include "sound/dac.h"
+#include "sound/volt_reg.h"
#include "screen.h"
#include "speaker.h"
@@ -338,7 +339,8 @@ static MACHINE_CONFIG_START( ladyfrog )
// pin 22 Noise Output not mapped
MCFG_SOUND_ADD("dac", DAC_8BIT_R2R, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) // unknown DAC
- MCFG_SOUND_REFERENCE_INPUT(DAC_VREF_POS_INPUT, 1.0) MCFG_SOUND_REFERENCE_INPUT(DAC_VREF_NEG_INPUT, -1.0)
+ MCFG_DEVICE_ADD("vref", VOLTAGE_REGULATOR, 0) MCFG_VOLTAGE_REGULATOR_OUTPUT(5.0)
+ MCFG_SOUND_ROUTE_EX(0, "dac", 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE_EX(0, "dac", -1.0, DAC_VREF_NEG_INPUT)
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( toucheme, ladyfrog )