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Diffstat (limited to 'src/devices/bus/cbus/pc9801_86.cpp')
-rw-r--r--src/devices/bus/cbus/pc9801_86.cpp6
1 files changed, 2 insertions, 4 deletions
diff --git a/src/devices/bus/cbus/pc9801_86.cpp b/src/devices/bus/cbus/pc9801_86.cpp
index cad2d56c505..6d9c3c5a9b6 100644
--- a/src/devices/bus/cbus/pc9801_86.cpp
+++ b/src/devices/bus/cbus/pc9801_86.cpp
@@ -17,7 +17,6 @@
#include "emu.h"
#include "bus/cbus/pc9801_86.h"
-#include "sound/volt_reg.h"
#include "speaker.h"
#define MAIN_CLOCK_X1 XTAL_1_9968MHz
@@ -64,10 +63,9 @@ MACHINE_CONFIG_MEMBER( pc9801_86_device::device_add_mconfig )
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 1.00)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 1.00)
MCFG_SOUND_ADD("ldac", DAC_16BIT_R2R_TWOS_COMPLEMENT, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 1.0) // unknown DAC
+ MCFG_SOUND_REFERENCE_INPUT(DAC_VREF_POS_INPUT, 1.0) MCFG_SOUND_REFERENCE_INPUT(DAC_VREF_NEG_INPUT, -1.0)
MCFG_SOUND_ADD("rdac", DAC_16BIT_R2R_TWOS_COMPLEMENT, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 1.0) // unknown DAC
- MCFG_DEVICE_ADD("vref", VOLTAGE_REGULATOR, 0) MCFG_VOLTAGE_REGULATOR_OUTPUT(5.0)
- MCFG_SOUND_ROUTE_EX(0, "ldac", 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE_EX(0, "ldac", -1.0, DAC_VREF_NEG_INPUT)
- MCFG_SOUND_ROUTE_EX(0, "rdac", 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE_EX(0, "rdac", -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
// RAM