1;------------------------------------------------------------------------------ 2; 3; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> 4; This program and the accompanying materials 5; are licensed and made available under the terms and conditions of the BSD License 6; which accompanies this distribution. The full text of the license may be found at 7; http://opensource.org/licenses/bsd-license.php. 8; 9; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11; 12; Module Name: 13; 14; SetMem16.asm 15; 16; Abstract: 17; 18; SetMem16 function 19; 20; Notes: 21; 22;------------------------------------------------------------------------------ 23 24 .code 25 26;------------------------------------------------------------------------------ 27; VOID * 28; EFIAPI 29; InternalMemSetMem16 ( 30; OUT VOID *Buffer, 31; IN UINTN Length, 32; IN UINT16 Value 33; ); 34;------------------------------------------------------------------------------ 35InternalMemSetMem16 PROC USES rdi 36 mov rax, r8 37 DB 48h, 0fh, 6eh, 0c0h ; movd mm0, rax 38 mov r8, rcx 39 mov rdi, r8 40 mov rcx, rdx 41 and edx, 3 42 shr rcx, 2 43 jz @SetWords 44 DB 0fh, 70h, 0C0h, 00h ; pshufw mm0, mm0, 0h 45@@: 46 DB 0fh, 0e7h, 07h ; movntq [rdi], mm0 47 add rdi, 8 48 loop @B 49 mfence 50@SetWords: 51 mov ecx, edx 52 rep stosw 53 mov rax, r8 54 ret 55InternalMemSetMem16 ENDP 56 57 END 58