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| author | lhauch <lhauch@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-06-01 14:49:55 +0000 |
|---|---|---|
| committer | lhauch <lhauch@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-06-01 14:49:55 +0000 |
| commit | 586cd1f1f4129ab7ec24543d4968801e17cc870b (patch) | |
| tree | e2f1b645e576edee627997ca1abd65e3f9b0add8 /OldMdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm | |
| parent | 144d783d40c8a02113350feabd1b9a55b692313f (diff) | |
| download | edk2-586cd1f1f4129ab7ec24543d4968801e17cc870b.tar.gz edk2-586cd1f1f4129ab7ec24543d4968801e17cc870b.tar.bz2 edk2-586cd1f1f4129ab7ec24543d4968801e17cc870b.zip | |
Moved the MdePkg to OldMdePkg so that new code in MdePkg does not break existing builds. Also updated the SPD and FPD files UiNames
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2616 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OldMdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm')
| -rw-r--r-- | OldMdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/OldMdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm b/OldMdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm new file mode 100644 index 0000000000..7eebd3a8ef --- /dev/null +++ b/OldMdePkg/Library/BaseMemoryLibSse2/x64/ZeroMem.asm @@ -0,0 +1,63 @@ +;------------------------------------------------------------------------------
+;
+; 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:
+;
+;------------------------------------------------------------------------------
+
+ .code
+
+;------------------------------------------------------------------------------
+; VOID *
+; InternalMemZeroMem (
+; IN VOID *Buffer,
+; IN UINTN Count
+; )
+;------------------------------------------------------------------------------
+InternalMemZeroMem PROC USES rdi
+ mov rdi, rcx
+ xor rcx, rcx
+ xor eax, eax
+ sub rcx, rdi
+ and rcx, 15
+ mov r8, rdi
+ jz @F
+ cmp rcx, rdx
+ cmova rcx, rdx
+ sub rdx, rcx
+ rep stosb
+@@:
+ mov rcx, rdx
+ and edx, 15
+ shr rcx, 4
+ jz @ZeroBytes
+ pxor xmm0, xmm0
+@@:
+ movntdq [rdi], xmm0 ; rdi should be 16-byte aligned
+ add rdi, 16
+ loop @B
+ mfence
+@ZeroBytes:
+ mov ecx, edx
+ rep stosb
+ mov rax, r8
+ ret
+InternalMemZeroMem ENDP
+
+ END
|