de180e34085257aa92b209910e5536e70ef02f1avboxsync; IPRT - ASMAtomicReadU64().
c58f1213e628a545081c70e26c6b67a841cff880vboxsync; Copyright (C) 2006-2010 Oracle Corporation
de180e34085257aa92b209910e5536e70ef02f1avboxsync; This file is part of VirtualBox Open Source Edition (OSE), as
de180e34085257aa92b209910e5536e70ef02f1avboxsync; available from http://www.virtualbox.org. This file is free software;
de180e34085257aa92b209910e5536e70ef02f1avboxsync; you can redistribute it and/or modify it under the terms of the GNU
de180e34085257aa92b209910e5536e70ef02f1avboxsync; General Public License (GPL) as published by the Free Software
de180e34085257aa92b209910e5536e70ef02f1avboxsync; Foundation, in version 2 as it comes in the "COPYING" file of the
de180e34085257aa92b209910e5536e70ef02f1avboxsync; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
de180e34085257aa92b209910e5536e70ef02f1avboxsync; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
de180e34085257aa92b209910e5536e70ef02f1avboxsync; The contents of this file may alternatively be used under the terms
de180e34085257aa92b209910e5536e70ef02f1avboxsync; of the Common Development and Distribution License Version 1.0
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de180e34085257aa92b209910e5536e70ef02f1avboxsync; VirtualBox OSE distribution, in which case the provisions of the
de180e34085257aa92b209910e5536e70ef02f1avboxsync; CDDL are applicable instead of those of the GPL.
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de180e34085257aa92b209910e5536e70ef02f1avboxsync;*******************************************************************************
de180e34085257aa92b209910e5536e70ef02f1avboxsync;* Header Files *
de180e34085257aa92b209910e5536e70ef02f1avboxsync;*******************************************************************************
de180e34085257aa92b209910e5536e70ef02f1avboxsync; Atomically reads 64-bit value.
de180e34085257aa92b209910e5536e70ef02f1avboxsync; @param pu64 x86:ebp+8
16f8846540385a2be120c7430c1b61ce938c718bvboxsync; @returns The current value. (x86:eax+edx)
de180e34085257aa92b209910e5536e70ef02f1avboxsyncBEGINPROC_EXPORTED ASMAtomicReadU64
4a06653ba40bc32430ffb04702f50c72493e5826vboxsync%ifdef RT_ARCH_AMD64
4a06653ba40bc32430ffb04702f50c72493e5826vboxsync mfence ; ASSUME its present.
4a06653ba40bc32430ffb04702f50c72493e5826vboxsync %ifdef ASM_CALL64_MSC
4a06653ba40bc32430ffb04702f50c72493e5826vboxsync mov rax, [rcx]
4a06653ba40bc32430ffb04702f50c72493e5826vboxsync mov rax, [rdi]
4a06653ba40bc32430ffb04702f50c72493e5826vboxsync%ifdef RT_ARCH_X86
de180e34085257aa92b209910e5536e70ef02f1avboxsync mov ebp, esp
de180e34085257aa92b209910e5536e70ef02f1avboxsync xor eax, eax
de180e34085257aa92b209910e5536e70ef02f1avboxsync xor edx, edx
de180e34085257aa92b209910e5536e70ef02f1avboxsync mov edi, [ebp+08h]
de180e34085257aa92b209910e5536e70ef02f1avboxsync xor ecx, ecx
de180e34085257aa92b209910e5536e70ef02f1avboxsync xor ebx, ebx
de180e34085257aa92b209910e5536e70ef02f1avboxsync lock cmpxchg8b [edi]
de180e34085257aa92b209910e5536e70ef02f1avboxsyncENDPROC ASMAtomicReadU64