diff options
Diffstat (limited to 'src/mame/drivers/nbmj8891.cpp')
-rw-r--r-- | src/mame/drivers/nbmj8891.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mame/drivers/nbmj8891.cpp b/src/mame/drivers/nbmj8891.cpp index 3ff46c9568b..6b7ddd3bdec 100644 --- a/src/mame/drivers/nbmj8891.cpp +++ b/src/mame/drivers/nbmj8891.cpp @@ -48,6 +48,7 @@ TODO: #include "sound/3812intf.h" #include "sound/ay8910.h" #include "sound/dac.h" +#include "sound/volt_reg.h" #include "speaker.h" @@ -2205,7 +2206,8 @@ static MACHINE_CONFIG_START( gionbana ) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.5) MCFG_SOUND_ADD("dac", DAC_8BIT_R2R, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.37) // 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( mgion, gionbana ) |