diff options
Diffstat (limited to 'MdePkg')
-rw-r--r-- | MdePkg/Library/BaseMemoryLibMmx/BaseMemoryLibMmx.inf | 2 | ||||
-rw-r--r-- | MdePkg/Library/BaseMemoryLibMmx/X64/SetMem64.nasm | 46 |
2 files changed, 48 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseMemoryLibMmx/BaseMemoryLibMmx.inf b/MdePkg/Library/BaseMemoryLibMmx/BaseMemoryLibMmx.inf index f3ffc1cb79..00c68d0223 100644 --- a/MdePkg/Library/BaseMemoryLibMmx/BaseMemoryLibMmx.inf +++ b/MdePkg/Library/BaseMemoryLibMmx/BaseMemoryLibMmx.inf @@ -108,6 +108,7 @@ X64/ScanMem8.asm
X64/CompareMem.nasm
X64/CompareMem.asm
+ X64/SetMem64.nasm
X64/SetMem64.asm
X64/SetMem32.asm
X64/SetMem16.asm
@@ -123,6 +124,7 @@ X64/ScanMem8.S
X64/CompareMem.nasm
X64/CompareMem.S
+ X64/SetMem64.nasm
X64/SetMem64.S
X64/SetMem32.S
X64/SetMem16.S
diff --git a/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem64.nasm b/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem64.nasm new file mode 100644 index 0000000000..8b076c5899 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem64.nasm @@ -0,0 +1,46 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, 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:
+;
+; SetMem64.nasm
+;
+; Abstract:
+;
+; SetMem64 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ DEFAULT REL
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; VOID *
+; InternalMemSetMem64 (
+; IN VOID *Buffer,
+; IN UINTN Count,
+; IN UINT64 Value
+; )
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalMemSetMem64)
+ASM_PFX(InternalMemSetMem64):
+ DB 0x49, 0xf, 0x6e, 0xc0 ; movd mm0, r8 (Value)
+ mov rax, rcx ; rax <- Buffer
+ xchg rcx, rdx ; rcx <- Count
+.0:
+ DB 0xf, 0xe7, 0x2 ; movntq [rdx], mm0
+ add rdx, 8
+ loop .0
+ mfence
+ ret
+
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