summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/instantm.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/drivers/instantm.cpp')
-rw-r--r--src/mame/drivers/instantm.cpp4
1 files changed, 1 insertions, 3 deletions
diff --git a/src/mame/drivers/instantm.cpp b/src/mame/drivers/instantm.cpp
index b08d85685ee..ff0d36a16ba 100644
--- a/src/mame/drivers/instantm.cpp
+++ b/src/mame/drivers/instantm.cpp
@@ -28,7 +28,6 @@ At the moment it simply outputs all the speech strings, one after the other, the
#include "cpu/z80/z80.h"
#include "machine/clock.h"
#include "sound/dac.h"
-#include "sound/volt_reg.h"
#include "speaker.h"
class instantm_state : public driver_device
@@ -132,8 +131,7 @@ static MACHINE_CONFIG_START( instantm )
MCFG_SPEAKER_STANDARD_MONO("speaker")
MCFG_SOUND_ADD("dac", MC1408, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.5)
- 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)
+ MCFG_SOUND_REFERENCE_INPUT(DAC_VREF_POS_INPUT, 1.0) MCFG_SOUND_REFERENCE_INPUT(DAC_VREF_NEG_INPUT, -1.0)
MACHINE_CONFIG_END