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-rw-r--r--src/VBox/Runtime/common/asm/ASMAtomicUoAndU32.asm56
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diff --git a/src/VBox/Runtime/common/asm/ASMAtomicUoAndU32.asm b/src/VBox/Runtime/common/asm/ASMAtomicUoAndU32.asm
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+; $Id: ASMAtomicUoAndU32.asm $
+;; @file
+; IPRT - ASMAtomicUoAndU32().
+;
+
+;
+; Copyright (C) 2013-2019 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.
+;
+
+;*******************************************************************************
+;* Header Files *
+;*******************************************************************************
+%include "iprt/asmdefs.mac"
+
+BEGINCODE
+
+;;
+; Atomically OR an unsigned 32-bit value, unordered.
+;
+; @param pu32 x86:esp+4 gcc:rdi msc:rcx
+; @param u32Or x86:esp+8 gcc:rsi msc:rdx
+;
+; @returns void
+;
+BEGINPROC_EXPORTED ASMAtomicUoAndU32
+%ifdef RT_ARCH_AMD64
+ %ifdef ASM_CALL64_MSC
+ and [rcx], edx
+ %else
+ and [rdi], esi
+ %endif
+%elifdef RT_ARCH_X86
+ mov ecx, [esp + 04h]
+ mov edx, [esp + 08h]
+ and [ecx], edx
+%endif
+ ret
+ENDPROC ASMAtomicUoAndU32
+