1 files changed, 63 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..ca372f66
--- /dev/null
+++ b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-c16-CreateHybridFarRet.asm
@@ -0,0 +1,63 @@
+; $Id: bs3-c16-CreateHybridFarRet.asm $
+;; @file
+; BS3Kit - Bs3A20Disable.
+;
+
+;
+; 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
+;
+
+
+%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
+