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-rw-r--r--src/mame/machine/namcos2.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/machine/namcos2.cpp b/src/mame/machine/namcos2.cpp
index e060200d4de..eb055be1911 100644
--- a/src/mame/machine/namcos2.cpp
+++ b/src/mame/machine/namcos2.cpp
@@ -504,7 +504,7 @@ WRITE8_MEMBER( namcos2_shared_state::namcos2_mcu_analog_ctrl_w )
/* If the interrupt enable bit is set trigger an A/D IRQ */
if(data & 0x20)
{
- m_mcu->pulse_input_line(HD63705_INT_ADCONV, 1);
+ m_mcu->pulse_input_line(HD63705_INT_ADCONV, m_mcu->minimum_quantum_time());
}
}
}