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-rw-r--r--MdePkg/Library/BaseLib/BaseLib.inf2
-rw-r--r--MdePkg/Library/BaseLib/X64/ReadMm4.nasm41
2 files changed, 43 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf
index ff4d02e37c..e940d2dddf 100644
--- a/MdePkg/Library/BaseLib/BaseLib.inf
+++ b/MdePkg/Library/BaseLib/BaseLib.inf
@@ -495,6 +495,7 @@
X64/ReadMm6.asm | MSFT
X64/ReadMm5.nasm| MSFT
X64/ReadMm5.asm | MSFT
+ X64/ReadMm4.nasm| MSFT
X64/ReadMm4.asm | MSFT
X64/ReadMm3.asm | MSFT
X64/ReadMm2.asm | MSFT
@@ -592,6 +593,7 @@
X64/ReadMm6.asm | INTEL
X64/ReadMm5.nasm| INTEL
X64/ReadMm5.asm | INTEL
+ X64/ReadMm4.nasm| INTEL
X64/ReadMm4.asm | INTEL
X64/ReadMm3.asm | INTEL
X64/ReadMm2.asm | INTEL
diff --git a/MdePkg/Library/BaseLib/X64/ReadMm4.nasm b/MdePkg/Library/BaseLib/X64/ReadMm4.nasm
new file mode 100644
index 0000000000..d98e0a99de
--- /dev/null
+++ b/MdePkg/Library/BaseLib/X64/ReadMm4.nasm
@@ -0,0 +1,41 @@
+;------------------------------------------------------------------------------
+;
+; 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:
+;
+; ReadMm4.Asm
+;
+; Abstract:
+;
+; AsmReadMm4 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ DEFAULT REL
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; UINT64
+; EFIAPI
+; AsmReadMm4 (
+; VOID
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(AsmReadMm4)
+ASM_PFX(AsmReadMm4):
+ ;
+ ; 64-bit MASM doesn't support MMX instructions, so use opcode here
+ ;
+ DB 0x48, 0xf, 0x7e, 0xe0
+ ret
+