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-rw-r--r--src/devices/machine/adc0844.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/devices/machine/adc0844.cpp b/src/devices/machine/adc0844.cpp
index c4464bb3814..0c773c25022 100644
--- a/src/devices/machine/adc0844.cpp
+++ b/src/devices/machine/adc0844.cpp
@@ -76,6 +76,8 @@ void adc0844_device::device_start()
void adc0848_device::device_start()
{
+ adc0844_device::device_start();
+
// resolve callbacks
m_ch5_cb.resolve_safe(0xff);
m_ch6_cb.resolve_safe(0xff);