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 ; SetMem64.asm 15 ; 16 ; Abstract: 17 ; 18 ; SetMem64 function 19 ; 20 ; Notes: 21 ; 22 ;------------------------------------------------------------------------------ 23 24 .686 25 .model flat,C 26 .xmm 27 .code 28 29 ;------------------------------------------------------------------------------ 30 ; VOID * 31 ; EFIAPI 32 ; InternalMemSetMem64 ( 33 ; IN VOID *Buffer, 34 ; IN UINTN Count, 35 ; IN UINT64 Value 36 ; ) 37 ;------------------------------------------------------------------------------ 38 InternalMemSetMem64 PROC 39 mov eax, [esp + 4] ; eax <- Buffer 40 mov ecx, [esp + 8] ; ecx <- Count 41 test al, 8 42 mov edx, eax 43 movq xmm0, qword ptr [esp + 12] 44 jz @F 45 movq qword ptr [edx], xmm0 46 add edx, 8 47 dec ecx 48 @@: 49 shr ecx, 1 50 jz @SetQwords 51 movlhps xmm0, xmm0 52 @@: 53 movntdq [edx], xmm0 54 lea edx, [edx + 16] 55 loop @B 56 mfence 57 @SetQwords: 58 jnc @F 59 movq qword ptr [edx], xmm0 60 @@: 61 ret 62 InternalMemSetMem64 ENDP 63 64 END 65
