Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 53 insertions, 0 deletions

diff --git a/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-c16-CreateHybridFarRet.asm b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-c16-CreateHybridFarRet.asm
new file mode 100644
index 00000000..ef48576f
--- /dev/null
+++ b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-c16-CreateHybridFarRet.asm
@@ -0,0 +1,53 @@
+; $Id: bs3-c16-CreateHybridFarRet.asm $
+;; @file
+; BS3Kit - Bs3A20Disable.
+;
+
+;
+; 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.mac"
+
+
+;;
+; Worker for BS3_PROC_BEGIN_CMN
+; @uses nothing
+BS3_PROC_BEGIN Bs3CreateHybridFarRet_c16
+        push    ax                      ; reserve space
+        push    bp
+        mov     bp, sp
+        push    ax                      ; save it
+
+        ; Move the return address up a word.
+        mov     ax, [bp + 4]
+        mov     [bp + 2], ax
+        ; Move the caller's return address up a word.
+        mov     ax, [bp + 6]
+        mov     [bp + 4], ax
+        ; Add CS to the caller's far return address.
+        mov     [bp + 6], cs
+
+        pop     ax
+        pop     bp
+        ret
+BS3_PROC_END   Bs3CreateHybridFarRet_c16
+