09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; $Id$
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;; @file
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; IPRT - ASMAtomicCmpXchgExU64().
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 Exchange an unsigned 64-bit value, ordered.
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; @param pu64 x86:ebp+8 gcc:rdi msc:rcx
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; @param u64New x86:ebp+c gcc:rsi msc:rdx
26404ab75e1085a73cd6dd83cb8b725a432c8e8bvboxsync; @param u64Old x86:ebp+14 gcc:rdx msc:r8
26404ab75e1085a73cd6dd83cb8b725a432c8e8bvboxsync; @param pu64Old x86:ebp+1c gcc:rcx msc:r9
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;
ad27e1d5e48ca41245120c331cc88b50464813cevboxsync; @returns bool result: true if successfully exchanged, false if not.
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync; x86:al
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync;
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsyncBEGINPROC_EXPORTED ASMAtomicCmpXchgExU64
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync%ifdef RT_ARCH_AMD64
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync %ifdef ASM_CALL64_MSC
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov rax, r8
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync lock cmpxchg [rcx], rdx
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov [r9], rax
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync %else
26404ab75e1085a73cd6dd83cb8b725a432c8e8bvboxsync mov rax, rdx
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync lock cmpxchg [rdi], rsi
26404ab75e1085a73cd6dd83cb8b725a432c8e8bvboxsync mov [rcx], rax
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync %endif
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync setz al
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync movzx eax, al
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync ret
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync%endif
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync%ifdef RT_ARCH_X86
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync push ebp
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov ebp, esp
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync push ebx
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync push edi
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov ebx, dword [ebp+0ch]
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov ecx, dword [ebp+0ch + 4]
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov edi, [ebp+08h]
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov eax, dword [ebp+14h]
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov edx, dword [ebp+14h + 4]
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync lock cmpxchg8b [edi]
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov edi, [ebp + 1ch]
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov [edi], eax
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync mov [edi + 4], edx
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync setz al
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync movzx eax, al
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync pop edi
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync pop ebx
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync leave
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync ret
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync%endif
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsyncENDPROC ASMAtomicCmpXchgExU64
09bcea4f80625e723f7b52c9d4956fddfce3344evboxsync