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Diffstat (limited to 'src/devices/cpu/ucom4/ucom4.cpp')
-rw-r--r--src/devices/cpu/ucom4/ucom4.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/devices/cpu/ucom4/ucom4.cpp b/src/devices/cpu/ucom4/ucom4.cpp
index bb07aca4b3e..090030e0a1c 100644
--- a/src/devices/cpu/ucom4/ucom4.cpp
+++ b/src/devices/cpu/ucom4/ucom4.cpp
@@ -214,7 +214,7 @@ void ucom4_cpu_device::device_reset()
// clear i/o
for (int i = NEC_UCOM4_PORTC; i <= NEC_UCOM4_PORTI; i++)
- output_w(i, 0xf);
+ output_w(i, 0);
}