; $Id: ASMAtomicUoAndU64.asm 98103 2023-01-17 14:15:46Z vboxsync $ ;; @file ; IPRT - ASMAtomicUoAndU64(). ; ; ; Copyright (C) 2013-2023 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 . ; ; 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 ; ;******************************************************************************* ;* Header Files * ;******************************************************************************* %include "iprt/asmdefs.mac" BEGINCODE ;; ; Atomically AND an unsigned 64-bit value, unordered. ; ; @param pu64 x86:ebp+8 gcc:rdi msc:rcx ; @param u64Or x86:ebp+c gcc:rsi msc:rdx ; ; @returns void ; RT_BEGINPROC ASMAtomicUoAndU64 %ifdef RT_ARCH_AMD64 %ifdef ASM_CALL64_MSC and [rcx], rdx %else and [rdi], rsi %endif %elifdef RT_ARCH_X86 push ebp mov ebp, esp push ebx push edi mov edi, [ebp + 08h] mov ebx, [ebp + 0ch] mov ecx, [ebp + 0ch + 4] mov eax, ebx mov edx, ecx .try_again: cmpxchg8b [edi] jz .done mov ebx, eax and ebx, [ebp + 0ch] mov ecx, edx and ecx, [ebp + 0ch + 4] jmp .try_again .done: pop edi pop ebx leave %endif ret ENDPROC ASMAtomicUoAndU64