X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdePkg%2FLibrary%2FBaseLib%2FX64%2FWriteMm4.nasm;fp=MdePkg%2FLibrary%2FBaseLib%2FX64%2FWriteMm4.nasm;h=7cbd25e70a90185268c9873c7e484adad1107751;hp=d99709d49512f90d39eb62ef0e8e3ec9f909e231;hb=d3febfd9ade35dc552df6b3607c2b15d26b82867;hpb=84338c0d498555f860a480693ee8647a1795fba3

diff --git a/MdePkg/Library/BaseLib/X64/WriteMm4.nasm b/MdePkg/Library/BaseLib/X64/WriteMm4.nasm
index d99709d495..7cbd25e70a 100644
--- a/MdePkg/Library/BaseLib/X64/WriteMm4.nasm
+++ b/MdePkg/Library/BaseLib/X64/WriteMm4.nasm
@@ -1,6 +1,6 @@
 ;------------------------------------------------------------------------------
 ;
-; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+; Copyright (c) 2006 - 2022, Intel Corporation. All rights reserved.<BR>
 ; SPDX-License-Identifier: BSD-2-Clause-Patent
 ;
 ; Module Name:
@@ -27,9 +27,6 @@
 ;------------------------------------------------------------------------------
 global ASM_PFX(AsmWriteMm4)
 ASM_PFX(AsmWriteMm4):
-    ;
-    ; 64-bit MASM doesn't support MMX instructions, so use opcode here
-    ;
-    DB      0x48, 0xf, 0x6e, 0xe1
+    movq    mm4, rcx
     ret