;------------------------------------------------------------------------------ ; ; Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.
; SPDX-License-Identifier: BSD-2-Clause-Patent ; ; Module Name: ; ; InterlockedDecrement.Asm ; ; Abstract: ; ; InterlockedDecrement function ; ; Notes: ; ;------------------------------------------------------------------------------ DEFAULT REL SECTION .text ;------------------------------------------------------------------------------ ; UINT32 ; EFIAPI ; InternalSyncDecrement ( ; IN volatile UINT32 *Value ; ); ;------------------------------------------------------------------------------ global ASM_PFX(InternalSyncDecrement) ASM_PFX(InternalSyncDecrement): mov eax, 0FFFFFFFFh lock xadd dword [rcx], eax dec eax ret