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author AJR <ajrhacker@users.noreply.github.com>2017-07-04 23:14:15 -0400
committer AJR <ajrhacker@users.noreply.github.com>2018-01-10 02:11:14 -0500
commit1c6a7ab40ccd23b753777204c7a289e830b2adcb (patch)
treecef6154209fde4d65ecf098aea12b3093182573a /src/mame/drivers/cc40.cpp
parent9ee066992dd0126b7ed7450d664bf055d527ab64 (diff)
New way to provide DAC reference inputs (nw)
- Introduce MCFG_SOUND_REFERENCE_INPUT to provide fixed inputs through the resampler, eliminating the need for the "voltage regulator" device - Replace memset use in sound.cpp with std::fill This was my third implementation of this concept. The previous two involved attaching sound streams to the dummy device (which required giving it device_sound_interface and other modifications).
Diffstat (limited to 'src/mame/drivers/cc40.cpp')
-rw-r--r--src/mame/drivers/cc40.cpp4
1 files changed, 1 insertions, 3 deletions
diff --git a/src/mame/drivers/cc40.cpp b/src/mame/drivers/cc40.cpp
index 562f7f0cb9d..33109a62c5e 100644
--- a/src/mame/drivers/cc40.cpp
+++ b/src/mame/drivers/cc40.cpp
@@ -78,7 +78,6 @@
#include "cpu/tms7000/tms7000.h"
#include "machine/nvram.h"
#include "sound/dac.h"
-#include "sound/volt_reg.h"
#include "video/hd44780.h"
#include "screen.h"
@@ -606,8 +605,7 @@ static MACHINE_CONFIG_START( cc40 )
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("speaker")
MCFG_SOUND_ADD("dac", DAC_1BIT, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.25)
- 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_REFERENCE_INPUT(DAC_VREF_POS_INPUT, 1.0)
/* cartridge */
MCFG_GENERIC_CARTSLOT_ADD("cartslot", generic_plain_slot, "cc40_cart")