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 .686 25 .model flat,C 26 .xmm 27 .code 28 29;------------------------------------------------------------------------------ 30; VOID * 31; EFIAPI 32; InternalMemSetMem16 ( 33; IN VOID *Buffer, 34; IN UINTN Count, 35; IN UINT16 Value 36; ); 37;------------------------------------------------------------------------------ 38InternalMemSetMem16 PROC USES edi 39 mov edx, [esp + 12] 40 mov edi, [esp + 8] 41 xor ecx, ecx 42 sub ecx, edi 43 and ecx, 15 ; ecx + edi aligns on 16-byte boundary 44 mov eax, [esp + 16] 45 jz @F 46 shr ecx, 1 47 cmp ecx, edx 48 cmova ecx, edx 49 sub edx, ecx 50 rep stosw 51@@: 52 mov ecx, edx 53 and edx, 7 54 shr ecx, 3 55 jz @SetWords 56 movd xmm0, eax 57 pshuflw xmm0, xmm0, 0 58 movlhps xmm0, xmm0 59@@: 60 movntdq [edi], xmm0 ; edi should be 16-byte aligned 61 add edi, 16 62 loop @B 63 mfence 64@SetWords: 65 mov ecx, edx 66 rep stosw 67 mov eax, [esp + 8] 68 ret 69InternalMemSetMem16 ENDP 70 71 END 72