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-rw-r--r--src/devices/machine/chessmachine.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/devices/machine/chessmachine.cpp b/src/devices/machine/chessmachine.cpp
index cd80fce19e5..fa201f9b11e 100644
--- a/src/devices/machine/chessmachine.cpp
+++ b/src/devices/machine/chessmachine.cpp
@@ -73,7 +73,7 @@ void chessmachine_device::device_start()
// external handlers
//-------------------------------------------------
-void chessmachine_device::sync0_callback(void *ptr, s32 param)
+void chessmachine_device::sync0_callback(s32 param)
{
m_latch[0] = (m_latch[0] & 0x80) | param;
}
@@ -83,7 +83,7 @@ void chessmachine_device::data0_w(int state)
machine().scheduler().synchronize(timer_expired_delegate(FUNC(chessmachine_device::sync0_callback), this), state ? 1 : 0);
}
-void chessmachine_device::sync1_callback(void *ptr, s32 param)
+void chessmachine_device::sync1_callback(s32 param)
{
m_latch[0] = (m_latch[0] & 1) | param;