diff options
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S')
-rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S | 130 |
1 files changed, 65 insertions, 65 deletions
diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S index 8b4157f741..b1b326f0fd 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/ZeroMem.S @@ -1,65 +1,65 @@ -#------------------------------------------------------------------------------ -# -# 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: -# -# ZeroMem.asm -# -# Abstract: -# -# ZeroMem function -# -# Notes: -# -#------------------------------------------------------------------------------ - -.globl _InternalMemZeroMem - -#------------------------------------------------------------------------------ -# VOID * -# EFIAPI -# InternalMemZeroMem ( -# IN VOID *Buffer, -# IN UINTN Count -# ); -#------------------------------------------------------------------------------ -_InternalMemZeroMem: - push %edi - movl 8(%esp), %edi - movl 12(%esp), %edx - xorl %ecx, %ecx - subl %edi, %ecx - xorl %eax, %eax - andl $15, %ecx - jz L0 - cmpl %edx, %ecx - cmova %edx, %ecx - subl %ecx, %edx - rep - stosb -L0: - movl %edx, %ecx - andl $15, %edx - shrl $4, %ecx - jz L_ZeroBytes - pxor %xmm0, %xmm0 -L1: - movntdq %xmm0, (%edi) - addl $16, %edi - loop L1 - mfence -L_ZeroBytes: - movl %edx, %ecx - rep - stosb - movl 8(%esp), %eax - pop %edi - ret +#------------------------------------------------------------------------------
+#
+# 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:
+#
+# ZeroMem.asm
+#
+# Abstract:
+#
+# ZeroMem function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+.globl _InternalMemZeroMem
+
+#------------------------------------------------------------------------------
+# VOID *
+# EFIAPI
+# InternalMemZeroMem (
+# IN VOID *Buffer,
+# IN UINTN Count
+# );
+#------------------------------------------------------------------------------
+_InternalMemZeroMem:
+ push %edi
+ movl 8(%esp), %edi
+ movl 12(%esp), %edx
+ xorl %ecx, %ecx
+ subl %edi, %ecx
+ xorl %eax, %eax
+ andl $15, %ecx
+ jz L0
+ cmpl %edx, %ecx
+ cmova %edx, %ecx
+ subl %ecx, %edx
+ rep
+ stosb
+L0:
+ movl %edx, %ecx
+ andl $15, %edx
+ shrl $4, %ecx
+ jz L_ZeroBytes
+ pxor %xmm0, %xmm0
+L1:
+ movntdq %xmm0, (%edi)
+ addl $16, %edi
+ loop L1
+ mfence
+L_ZeroBytes:
+ movl %edx, %ecx
+ rep
+ stosb
+ movl 8(%esp), %eax
+ pop %edi
+ ret
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