diff options
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibSse2/X64/SetMem32.S')
| -rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/X64/SetMem32.S | 49 |
1 files changed, 24 insertions, 25 deletions
diff --git a/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem32.S b/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem32.S index ff6b0d7..b8579d7 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/X64/SetMem32.S +++ b/MdePkg/Library/BaseMemoryLibSse2/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
@@ -34,37 +34,36 @@ # IN UINT32 Value
# );
#------------------------------------------------------------------------------
-.intel_syntax noprefix
ASM_GLOBAL ASM_PFX(InternalMemSetMem32)
ASM_PFX(InternalMemSetMem32):
- push rdi
- mov rdi, rcx
- mov r9, rdi
- xor rcx, rcx
- sub rcx, rdi
- and rcx, 15
- mov rax, r8
+ pushq %rdi
+ movq %rcx, %rdi
+ movq %rdi, %r9
+ xorq %rcx, %rcx
+ subq %rdi, %rcx
+ andq $15, %rcx
+ movq %r8, %rax
jz L0
- shr rcx, 2
- cmp rcx, rdx
- cmova rcx, rdx
- sub rdx, rcx
- rep stosd
+ shrq $2, %rcx
+ cmpq %rdx, %rcx
+ cmova %rdx, %rcx
+ subq %rcx, %rdx
+ rep stosl
L0:
- mov rcx, rdx
- and edx, 3
- shr rcx, 2
+ movq %rdx, %rcx
+ andl $3, %edx
+ shrq $2, %rcx
jz L_SetDwords
- movd xmm0, eax
- pshufd xmm0, xmm0, 0
+ movd %eax, %xmm0
+ pshufd $0, %xmm0, %xmm0
L1:
- movntdq [rdi], xmm0
- add rdi, 16
+ movntdq %xmm0, (%rdi)
+ addq $16, %rdi
loop L1
mfence
L_SetDwords:
- mov ecx, edx
- rep stosd
- mov rax, r9
- pop rdi
+ movl %edx, %ecx
+ rep stosl
+ movq %r9, %rax
+ popq %rdi
ret
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