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Diffstat (limited to 'src/devices/cpu/alto2/a2disk.cpp')
-rw-r--r--src/devices/cpu/alto2/a2disk.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/devices/cpu/alto2/a2disk.cpp b/src/devices/cpu/alto2/a2disk.cpp
index 4ca564c0bd2..8075ae3ed39 100644
--- a/src/devices/cpu/alto2/a2disk.cpp
+++ b/src/devices/cpu/alto2/a2disk.cpp
@@ -1026,7 +1026,7 @@ void alto2_cpu_device::f1_late_strobe()
LOG((this,LOG_DISK,1," STROBE (SENDADR:1)\n"));
/* Set the STROBON flag and start the STROBON monoflop */
m_dsk.strobe = 1;
- disk_strobon(0,
+ disk_strobon(nullptr,
4 * GET_KADDR_CYLINDER(m_dsk.kaddr) +
2 * GET_KADDR_RESTORE(m_dsk.kaddr) +
m_dsk.drive);