diff options
Diffstat (limited to 'EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/X64/EfiCopyMemRep1.S')
-rw-r--r-- | EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/X64/EfiCopyMemRep1.S | 132 |
1 files changed, 66 insertions, 66 deletions
diff --git a/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/X64/EfiCopyMemRep1.S b/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/X64/EfiCopyMemRep1.S index 310b87fb90..d177dc027c 100644 --- a/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/X64/EfiCopyMemRep1.S +++ b/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/X64/EfiCopyMemRep1.S @@ -1,66 +1,66 @@ -#------------------------------------------------------------------------------ -# -# Copyright (c) 2008, Intel Corporation. All rights reserved.<BR> -# 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: -# -# EfiCopyMemRep1.S -# -# Abstract: -# -# CopyMem function -# -# Notes: -# -#------------------------------------------------------------------------------ -#include <EfiBind.h> - - .code: - -.globl ASM_PFX(EfiCommonLibCopyMem) - -#------------------------------------------------------------------------------ -# VOID -# EfiCommonLibCopyMem ( -# OUT VOID *Destination, -# IN VOID *Source, -# IN UINTN Count -# ); -#------------------------------------------------------------------------------ -ASM_PFX(EfiCommonLibCopyMem): - push %rsi - push %rdi - cmp %rcx,%rdx - je CopyMemDone - cmp $0x0,%r8 - je CopyMemDone - mov %rdx,%rsi - mov %rcx,%rdi - lea -1(%r8,%rsi,1),%r9 - cmp %rdi,%rsi - jae CopyBytes - cmp %rdi,%r9 - jb CopyBytes - mov %r9,%rsi - lea -1(%r8,%rdi,1),%rdi - std - -CopyBytes: - mov %r8,%rcx - rep movsb %ds:(%rsi),%es:(%rdi) - cld - -CopyMemDone: - pop %rdi - pop %rsi - retq - - - +#------------------------------------------------------------------------------
+#
+# Copyright (c) 2008, Intel Corporation. All rights reserved.<BR>
+# 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:
+#
+# EfiCopyMemRep1.S
+#
+# Abstract:
+#
+# CopyMem function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+#include <EfiBind.h>
+
+ .code:
+
+.globl ASM_PFX(EfiCommonLibCopyMem)
+
+#------------------------------------------------------------------------------
+# VOID
+# EfiCommonLibCopyMem (
+# OUT VOID *Destination,
+# IN VOID *Source,
+# IN UINTN Count
+# );
+#------------------------------------------------------------------------------
+ASM_PFX(EfiCommonLibCopyMem):
+ push %rsi
+ push %rdi
+ cmp %rcx,%rdx
+ je CopyMemDone
+ cmp $0x0,%r8
+ je CopyMemDone
+ mov %rdx,%rsi
+ mov %rcx,%rdi
+ lea -1(%r8,%rsi,1),%r9
+ cmp %rdi,%rsi
+ jae CopyBytes
+ cmp %rdi,%r9
+ jb CopyBytes
+ mov %r9,%rsi
+ lea -1(%r8,%rdi,1),%rdi
+ std
+
+CopyBytes:
+ mov %r8,%rcx
+ rep movsb %ds:(%rsi),%es:(%rdi)
+ cld
+
+CopyMemDone:
+ pop %rdi
+ pop %rsi
+ retq
+
+
+
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