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; SetMem32.asm 15; 16; Abstract: 17; 18; SetMem32 function 19; 20; Notes: 21; 22;------------------------------------------------------------------------------ 23 24 .code 25 26;------------------------------------------------------------------------------ 27; VOID * 28; InternalMemSetMem32 ( 29; IN VOID *Buffer, 30; IN UINTN Count, 31; IN UINT8 Value 32; ) 33;------------------------------------------------------------------------------ 34InternalMemSetMem32 PROC USES rdi 35 mov rdi, rcx 36 mov r9, rdi 37 xor rcx, rcx 38 sub rcx, rdi 39 and rcx, 15 40 mov rax, r8 41 jz @F 42 shr rcx, 2 43 cmp rcx, rdx 44 cmova rcx, rdx 45 sub rdx, rcx 46 rep stosd 47@@: 48 mov rcx, rdx 49 and edx, 3 50 shr rcx, 2 51 jz @SetDwords 52 movd xmm0, eax 53 pshufd xmm0, xmm0, 0 54@@: 55 movntdq [rdi], xmm0 56 add rdi, 16 57 loop @B 58 mfence 59@SetDwords: 60 mov ecx, edx 61 rep stosd 62 mov rax, r9 63 ret 64InternalMemSetMem32 ENDP 65 66 END 67