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diff --git a/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-pic.h b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-pic.h
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+/* $Id: bs3-cmn-pic.h $ */
+/** @file
+ * BS3Kit - Internal PIC Defines, Variables and Functions.
+ */
+
+/*
+ * Copyright (C) 2007-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+#ifndef BS3KIT_INCLUDED_bs3_cmn_pic_h
+#define BS3KIT_INCLUDED_bs3_cmn_pic_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include "bs3kit.h"
+
+
+/** The master PIC port (base). */
+#define BS3_PIC_PORT_MASTER UINT8_C(0x20)
+/** The slave PIC port (base). */
+#define BS3_PIC_PORT_SLAVE UINT8_C(0xa0)
+
+/** The init command. */
+#define BS3_PIC_CMD_INIT UINT8_C(0x10)
+/** 4th init step option for the init command. */
+#define BS3_PIC_CMD_INIT_F_4STEP UINT8_C(0x01)
+
+/** Auto end of interrupt flag for the 4th init step. */
+#define BS3_PIC_I4_F_AUTO_EOI UINT8_C(0x01)
+
+
+RT_C_DECLS_BEGIN
+
+extern bool g_fBs3PicConfigured;
+
+RT_C_DECLS_END
+
+
+#include "bs3kit-mangling-code.h"
+
+#endif /* !BS3KIT_INCLUDED_bs3_cmn_pic_h */
+