diff options
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibMmx/X64/SetMem32.S')
| -rw-r--r-- | MdePkg/Library/BaseMemoryLibMmx/X64/SetMem32.S | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem32.S b/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem32.S new file mode 100644 index 0000000000..099e53d607 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem32.S @@ -0,0 +1,56 @@ +# +# ConvertAsm.py: Automatically generated from SetMem32.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: +# +# SetMem32.S +# +# Abstract: +# +# SetMem32 function +# +# Notes: +# +#------------------------------------------------------------------------------ + + +#------------------------------------------------------------------------------ +# VOID * +# EFIAPI +# InternalMemSetMem32 ( +# IN VOID *Buffer, +# IN UINTN Count, +# IN UINT32 Value +# ); +#------------------------------------------------------------------------------ +.intel_syntax noprefix +.globl ASM_PFX(InternalMemSetMem32) +ASM_PFX(InternalMemSetMem32): + movq mm0, r8 # mm0 <- Value + mov rax, rcx # rax <- Buffer + xchg rcx, rdx # rcx <- Count rdx <- Buffer + shr rcx, 1 # rcx <- # of qwords to set + jz L_SetDwords + pshufw mm0, mm0, 0x44 +L0: + movntq [rdx], mm0 + lea rdx, [rdx + 8] # use "lea" to avoid flag changes + loop L0 + mfence +L_SetDwords: + jnc L1 + movd [rdx], mm0 +L1: + ret + |