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-rw-r--r--src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-SelProtFar32ToFlat32.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-SelProtFar32ToFlat32.c b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-SelProtFar32ToFlat32.c
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index 00000000..0089d779
--- /dev/null
+++ b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-SelProtFar32ToFlat32.c
@@ -0,0 +1,45 @@
+/* $Id: bs3-cmn-SelProtFar32ToFlat32.c $ */
+/** @file
+ * BS3Kit - Bs3SelProtFar32ToFlat32
+ */
+
+/*
+ * Copyright (C) 2007-2019 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE 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.
+ */
+
+#include "bs3kit-template-header.h"
+
+
+#undef Bs3SelProtFar32ToFlat32
+BS3_CMN_DEF(uint32_t, Bs3SelProtFar32ToFlat32,(uint32_t off, uint16_t uSel))
+{
+ uint32_t uRet;
+ PCX86DESC pEntry;
+ if (!(uSel & X86_SEL_LDT))
+ pEntry = &Bs3Gdt[uSel >> X86_SEL_SHIFT];
+ else
+ pEntry = &Bs3Ldt[uSel >> X86_SEL_SHIFT];
+ uRet = pEntry->Gen.u16BaseLow;
+ uRet |= (uint32_t)pEntry->Gen.u8BaseHigh1 << 16;
+ uRet |= (uint32_t)pEntry->Gen.u8BaseHigh2 << 24;
+ uRet += off;
+ return uRet;
+}
+