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.nasm 15 ; 16 ; Abstract: 17 ; 18 ; SetMem64 function 19 ; 20 ; Notes: 21 ; 22 ;------------------------------------------------------------------------------ 23 24 SECTION .text 25 26 ;------------------------------------------------------------------------------ 27 ; VOID * 28 ; EFIAPI 29 ; InternalMemSetMem64 ( 30 ; IN VOID *Buffer, 31 ; IN UINTN Count, 32 ; IN UINT64 Value 33 ; ) 34 ;------------------------------------------------------------------------------ 35 global ASM_PFX(InternalMemSetMem64) 36 ASM_PFX(InternalMemSetMem64): 37 mov eax, [esp + 4] ; eax <- Buffer 38 mov ecx, [esp + 8] ; ecx <- Count 39 test al, 8 40 mov edx, eax 41 movq xmm0, qword [esp + 12] 42 jz .0 43 movq qword [edx], xmm0 44 add edx, 8 45 dec ecx 46 .0: 47 shr ecx, 1 48 jz @SetQwords 49 movlhps xmm0, xmm0 50 .1: 51 movntdq [edx], xmm0 52 lea edx, [edx + 16] 53 loop .1 54 mfence 55 @SetQwords: 56 jnc .2 57 movq qword [edx], xmm0 58 .2: 59 ret 60 61
