diff options
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibSse2/X64/SetMem64.S')
-rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/X64/SetMem64.S | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem64.S b/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem64.S new file mode 100644 index 0000000000..e0aa176d58 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem64.S @@ -0,0 +1,61 @@ +# +# ConvertAsm.py: Automatically generated from SetMem64.asm +# +#------------------------------------------------------------------------------ +# +# Copyright (c) 2006, Intel Corporation +# All rights reserved. This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php +# +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +# Module Name: +# +# SetMem64.S +# +# Abstract: +# +# SetMem64 function +# +# Notes: +# +#------------------------------------------------------------------------------ + + +#------------------------------------------------------------------------------ +# VOID * +# InternalMemSetMem64 ( +# IN VOID *Buffer, +# IN UINTN Count, +# IN UINT64 Value +# ) +#------------------------------------------------------------------------------ +.intel_syntax noprefix +.globl ASM_PFX(InternalMemSetMem64) +ASM_PFX(InternalMemSetMem64): + mov rax, rcx # rax <- Buffer + xchg rcx, rdx # rcx <- Count & rdx <- Buffer + test dl, 8 + movq xmm0, r8 + jz L0 + mov [rdx], r8 + add rdx, 8 + dec rcx +L0: + shr rcx, 1 + jz _SetQwords_L2 + movlhps xmm0, xmm0 +L1: + movntdq [rdx], xmm0 + lea rdx, [rdx + 16] + loop L1 + mfence +_SetQwords_L2: + jnc L2 + mov [rdx], r8 +L2: + ret + |