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Diffstat (limited to 'src/mame/drivers/wyvernf0.cpp')
-rw-r--r--src/mame/drivers/wyvernf0.cpp5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/mame/drivers/wyvernf0.cpp b/src/mame/drivers/wyvernf0.cpp
index 932feb70810..0f6c71f2dd2 100644
--- a/src/mame/drivers/wyvernf0.cpp
+++ b/src/mame/drivers/wyvernf0.cpp
@@ -659,9 +659,9 @@ void wyvernf0_state::wyvernf0(machine_config &config)
m_audiocpu->set_addrmap(AS_PROGRAM, &wyvernf0_state::sound_map);
m_audiocpu->set_periodic_int(FUNC(wyvernf0_state::irq0_line_hold), attotime::from_hz(60*2)); // IRQ generated by ??? (drives music tempo), NMI by main cpu
-// M68705P5(config, "mcu", 4000000); // ?
+// MCFG_DEVICE_ADD("mcu", M68705P5, 4000000) // ?
-// config.m_minimum_quantum = attotime::from_hz(6000); // 100 CPU slices per second to synchronize between the MCU and the main CPU
+// MCFG_QUANTUM_TIME(attotime::from_hz(6000)) // 100 CPU slices per second to synchronize between the MCU and the main CPU
// video hardware
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
@@ -704,6 +704,7 @@ void wyvernf0_state::wyvernf0(machine_config &config)
DAC_8BIT_R2R(config, "dac", 0).add_route(ALL_OUTPUTS, "mono", 0.25); // unknown DAC
voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref", 0));
+ vref.set_output(5.0);
vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT);
vref.add_route(0, "dac", -1.0, DAC_VREF_NEG_INPUT);
}