diff options
Diffstat (limited to 'src/mame/drivers/thomson.cpp')
-rw-r--r-- | src/mame/drivers/thomson.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/mame/drivers/thomson.cpp b/src/mame/drivers/thomson.cpp index f84c9a4b229..3195b00baff 100644 --- a/src/mame/drivers/thomson.cpp +++ b/src/mame/drivers/thomson.cpp @@ -86,6 +86,7 @@ #include "machine/clock.h" #include "machine/ram.h" #include "machine/wd_fdc.h" +#include "sound/volt_reg.h" #include "softlist.h" #include "speaker.h" @@ -648,9 +649,10 @@ static MACHINE_CONFIG_START( to7 ) /* sound */ MCFG_SPEAKER_STANDARD_MONO("speaker") MCFG_SOUND_ADD("buzzer", DAC_1BIT, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.5) - MCFG_SOUND_REFERENCE_INPUT(DAC_VREF_POS_INPUT, 1.0) MCFG_SOUND_ADD("dac", DAC_6BIT_R2R, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.5) // unknown DAC (6-bit game extension 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, "buzzer", 1.0, DAC_VREF_POS_INPUT) + MCFG_SOUND_ROUTE_EX(0, "dac", 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE_EX(0, "dac", -1.0, DAC_VREF_NEG_INPUT) /* speech synthesis */ MCFG_SOUND_ADD("mea8000", MEA8000, 3840000) |