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diff --git a/include/distortos/architecture/disableInterruptMasking.hpp b/include/distortos/architecture/disableInterruptMasking.hpp
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+++ b/include/distortos/architecture/disableInterruptMasking.hpp
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+/**
+ * \file
+ * \brief disableInterruptMasking() declaration
+ *
+ * \author Copyright (C) 2014-2015 Kamil Szczygiel http://www.distortec.com http://www.freddiechopin.info
+ *
+ * \par License
+ * This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not
+ * distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDE_DISTORTOS_ARCHITECTURE_DISABLEINTERRUPTMASKING_HPP_
+#define INCLUDE_DISTORTOS_ARCHITECTURE_DISABLEINTERRUPTMASKING_HPP_
+
+#include "distortos/architecture/parameters.hpp"
+
+namespace distortos
+{
+
+namespace architecture
+{
+
+/**
+ * \brief Disables interrupt masking.
+ *
+ * Enables normal-priority interrupts.
+ *
+ * \return previous value of interrupts' mask, must be used for matched restoreInterruptMasking() call
+ */
+
+InterruptMask disableInterruptMasking();
+
+}	// namespace architecture
+
+}	// namespace distortos
+
+#endif	// INCLUDE_DISTORTOS_ARCHITECTURE_DISABLEINTERRUPTMASKING_HPP_