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-rw-r--r--src/devices/cpu/sm510/sm511.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/devices/cpu/sm510/sm511.h b/src/devices/cpu/sm510/sm511.h
index 54066d1d405..463ede6be04 100644
--- a/src/devices/cpu/sm510/sm511.h
+++ b/src/devices/cpu/sm510/sm511.h
@@ -44,6 +44,7 @@ protected:
virtual void clock_melody() override;
virtual void init_melody() override;
+ virtual u16 melody_step_mask() { return 0x7f; }
};
class sm512_device : public sm511_device