1 #------------------------------------------------------------------------------ 2 # 3 # Copyright (c) 2006 - 2008, 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 ASM_GLOBAL ASM_PFX(InternalMemSetMem16) 25 26 #------------------------------------------------------------------------------ 27 # VOID * 28 # EFIAPI 29 # InternalMemSetMem16 ( 30 # IN VOID *Buffer, 31 # IN UINTN Count, 32 # IN UINT16 Value 33 # ) 34 #------------------------------------------------------------------------------ 35 ASM_PFX(InternalMemSetMem16): 36 push %edi 37 movl 12(%esp), %edx 38 movl 8(%esp), %edi 39 xorl %ecx, %ecx 40 subl %edi, %ecx 41 andl $15, %ecx # ecx + edi aligns on 16-byte boundary 42 movl 16(%esp), %eax 43 jz L0 44 shrl %ecx 45 cmpl %edx, %ecx 46 cmova %edx, %ecx 47 subl %ecx, %edx 48 rep 49 stosw 50 L0: 51 movl %edx, %ecx 52 andl $7, %edx 53 shrl $3, %ecx 54 jz L_SetWords 55 movd %eax, %xmm0 56 pshuflw $0, %xmm0, %xmm0 57 movlhps %xmm0, %xmm0 58 L1: 59 movntdq %xmm0, (%edi) 60 addl $16, %edi 61 loop L1 62 mfence 63 L_SetWords: 64 movl %edx, %ecx 65 rep 66 stosw 67 movl 8(%esp), %eax 68 pop %edi 69 ret 70
