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Diffstat (limited to 'src/devices/bus/abcbus/sio.h')
-rw-r--r--src/devices/bus/abcbus/sio.h12
1 files changed, 5 insertions, 7 deletions
diff --git a/src/devices/bus/abcbus/sio.h b/src/devices/bus/abcbus/sio.h
index 3b2abb78157..fffaf89c640 100644
--- a/src/devices/bus/abcbus/sio.h
+++ b/src/devices/bus/abcbus/sio.h
@@ -1,9 +1,9 @@
// license:BSD-3-Clause
// copyright-holders:Curt Coder
-#pragma once
+#ifndef MAME_BUS_ABCBUS_SIO_H
+#define MAME_BUS_ABCBUS_SIO_H
-#ifndef __ABC_SIO__
-#define __ABC_SIO__
+#pragma once
#include "abcbus.h"
#include "machine/z80ctc.h"
@@ -45,8 +45,6 @@ private:
// device type definition
-extern const device_type ABC_SIO;
-
-
+DECLARE_DEVICE_TYPE(ABC_SIO, abc_sio_device)
-#endif
+#endif // MAME_BUS_ABCBUS_SIO_H