diff options
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibMmx/X64/SetMem32.S')
| -rw-r--r-- | MdePkg/Library/BaseMemoryLibMmx/X64/SetMem32.S | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem32.S b/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem32.S index a67ca6a843..c983e6d9c1 100644 --- a/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem32.S +++ b/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem32.S @@ -3,7 +3,7 @@ #
#------------------------------------------------------------------------------
#
-# Copyright (c) 2006 - 2008, Intel Corporation
+# Copyright (c) 2006 - 2009, 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
@@ -34,23 +34,22 @@ # IN UINT32 Value
# );
#------------------------------------------------------------------------------
-.intel_syntax noprefix
ASM_GLOBAL 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
+ movq %r8, %mm0 # mm0 <- Value
+ movq %rcx, %rax # rax <- Buffer
+ xchgq %rdx, %rcx # rcx <- Count rdx <- Buffer
+ shrq $1, % rcx # rcx <- # of qwords to set
jz L_SetDwords
- pshufw mm0, mm0, 0x44
+ .byte 0x0f, 0x70, 0x0C0, 0x44
L0:
- movntq [rdx], mm0
- lea rdx, [rdx + 8] # use "lea" to avoid flag changes
+ movntq %mm0, (%rdx)
+ leaq 8(%rdx), %rdx # use "lea" to avoid flag changes
loop L0
mfence
L_SetDwords:
jnc L1
- movd [rdx], mm0
+ movd %mm0, (%rdx)
L1:
ret
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