| ;------------------------------------------------------------------------------ | |
| ; | |
| ; Copyright (c) 2006 - 2022, Intel Corporation. All rights reserved.<BR> | |
| ; SPDX-License-Identifier: BSD-2-Clause-Patent | |
| ; | |
| ; Module Name: | |
| ; | |
| ; SetMem16.nasm | |
| ; | |
| ; Abstract: | |
| ; | |
| ; SetMem16 function | |
| ; | |
| ; Notes: | |
| ; | |
| ;------------------------------------------------------------------------------ | |
| DEFAULT REL | |
| SECTION .text | |
| ;------------------------------------------------------------------------------ | |
| ; VOID * | |
| ; EFIAPI | |
| ; InternalMemSetMem16 ( | |
| ; OUT VOID *Buffer, | |
| ; IN UINTN Length, | |
| ; IN UINT16 Value | |
| ; ); | |
| ;------------------------------------------------------------------------------ | |
| global ASM_PFX(InternalMemSetMem16) | |
| ASM_PFX(InternalMemSetMem16): | |
| push rdi | |
| mov rax, r8 | |
| movq mm0, rax | |
| mov r8, rcx | |
| mov rdi, r8 | |
| mov rcx, rdx | |
| and edx, 3 | |
| shr rcx, 2 | |
| jz @SetWords | |
| pshufw mm0, mm0, 0 | |
| .0: | |
| movntq [rdi], mm0 | |
| add rdi, 8 | |
| loop .0 | |
| mfence | |
| @SetWords: | |
| mov ecx, edx | |
| rep stosw | |
| mov rax, r8 | |
| pop rdi | |
| ret | |