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-rw-r--r--src/devices/sound/fmopl.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/devices/sound/fmopl.cpp b/src/devices/sound/fmopl.cpp
index 2e1be1b4266..dbcd3429128 100644
--- a/src/devices/sound/fmopl.cpp
+++ b/src/devices/sound/fmopl.cpp
@@ -1631,7 +1631,7 @@ void FM_OPL::initialize()
/*logerror("freqbase=%f\n", freqbase);*/
/* Timer base time */
- TimerBase = attotime::from_hz(clock) * 72;
+ TimerBase = clock ? attotime::from_hz(clock) * 72 : attotime::zero;
/* make fnumber -> increment counter table */
for( i=0 ; i < 1024 ; i++ )