09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; $Id$
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;; @file
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; IPRT - ASMAtomicUoReadU64().
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;
e64031e20c39650a7bc902a3e1aba613b9415deevboxsync; Copyright (C) 2006-2010 Oracle Corporation
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; This file is part of VirtualBox Open Source Edition (OSE), as
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; available from http://www.virtualbox.org. This file is free software;
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; you can redistribute it and/or modify it under the terms of the GNU
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; General Public License (GPL) as published by the Free Software
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; Foundation, in version 2 as it comes in the "COPYING" file of the
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; The contents of this file may alternatively be used under the terms
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; of the Common Development and Distribution License Version 1.0
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; VirtualBox OSE distribution, in which case the provisions of the
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; CDDL are applicable instead of those of the GPL.
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; You may elect to license modified versions of this file under the
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; terms and conditions of either the GPL or the CDDL or both.
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;*******************************************************************************
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;* Header Files *
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;*******************************************************************************
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync%include "iprt/asmdefs.mac"
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsyncBEGINCODE
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;;
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; Atomically reads 64-bit value.
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; @param pu64 x86:ebp+8
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; @returns The current value. (x86:eax+edx)
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsyncBEGINPROC_EXPORTED ASMAtomicUoReadU64
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync%ifdef RT_ARCH_AMD64
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync %ifdef ASM_CALL64_MSC
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov rax, [rcx]
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync %else
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov rax, [rdi]
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync %endif
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync ret
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync%endif
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync%ifdef RT_ARCH_X86
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync push ebp
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov ebp, esp
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync push ebx
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync push edi
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync xor eax, eax
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync xor edx, edx
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov edi, [ebp+08h]
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync xor ecx, ecx
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync xor ebx, ebx
35956cc51b9b9c165b77421c476c3eb2555d6107vboxsync lock cmpxchg8b [edi]
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync pop edi
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync pop ebx
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync leave
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync ret
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync%endif
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsyncENDPROC ASMAtomicUoReadU64
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync