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Diffstat (limited to 'src/mame/drivers/mac128.cpp')
-rw-r--r--src/mame/drivers/mac128.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mame/drivers/mac128.cpp b/src/mame/drivers/mac128.cpp
index 9e3a5e886e7..92de438fa46 100644
--- a/src/mame/drivers/mac128.cpp
+++ b/src/mame/drivers/mac128.cpp
@@ -92,6 +92,7 @@ c0 8 data bits, Rx disabled
#include "machine/ram.h"
#include "machine/timer.h"
#include "sound/dac.h"
+#include "sound/volt_reg.h"
#include "formats/ap_dsk35.h"
#include "bus/scsi/scsi.h"
#include "bus/scsi/scsihd.h"
@@ -1341,7 +1342,8 @@ static MACHINE_CONFIG_START( mac512ke )
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("speaker")
MCFG_SOUND_ADD(DAC_TAG, DAC_8BIT_PWM, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.25) // 2 x ls161
- 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_TAG, 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE_EX(0, DAC_TAG, -1.0, DAC_VREF_NEG_INPUT)
/* devices */
MCFG_RTC3430042_ADD("rtc", XTAL_32_768kHz)