| ;------------------------------------------------------------------------------ | |
| ; | |
| ; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> | |
| ; SPDX-License-Identifier: BSD-2-Clause-Patent | |
| ; | |
| ; Module Name: | |
| ; | |
| ; ScanMem64.Asm | |
| ; | |
| ; Abstract: | |
| ; | |
| ; ScanMem64 function | |
| ; | |
| ; Notes: | |
| ; | |
| ; The following BaseMemoryLib instances contain the same copy of this file: | |
| ; | |
| ; BaseMemoryLibRepStr | |
| ; BaseMemoryLibMmx | |
| ; BaseMemoryLibSse2 | |
| ; BaseMemoryLibOptDxe | |
| ; BaseMemoryLibOptPei | |
| ; | |
| ;------------------------------------------------------------------------------ | |
| DEFAULT REL | |
| SECTION .text | |
| ;------------------------------------------------------------------------------ | |
| ; CONST VOID * | |
| ; EFIAPI | |
| ; InternalMemScanMem64 ( | |
| ; IN CONST VOID *Buffer, | |
| ; IN UINTN Length, | |
| ; IN UINT64 Value | |
| ; ); | |
| ;------------------------------------------------------------------------------ | |
| global ASM_PFX(InternalMemScanMem64) | |
| ASM_PFX(InternalMemScanMem64): | |
| push rdi | |
| mov rdi, rcx | |
| mov rax, r8 | |
| mov rcx, rdx | |
| repne scasq | |
| lea rax, [rdi - 8] | |
| cmovnz rax, rcx | |
| pop rdi | |
| ret | |