1 files changed, 35 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseLib/X64/WriteMm6.nasm b/roms/edk2/MdePkg/Library/BaseLib/X64/WriteMm6.nasm
new file mode 100644
index 000000000..6d2e5eb8f
--- /dev/null
+++ b/roms/edk2/MdePkg/Library/BaseLib/X64/WriteMm6.nasm
@@ -0,0 +1,35 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Module Name:
+;
+;   WriteMm6.Asm
+;
+; Abstract:
+;
+;   AsmWriteMm6 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    DEFAULT REL
+    SECTION .text
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; AsmWriteMm6 (
+;   IN UINT64   Value
+;   );
+;------------------------------------------------------------------------------
+global ASM_PFX(AsmWriteMm6)
+ASM_PFX(AsmWriteMm6):
+    ;
+    ; 64-bit MASM doesn't support MMX instructions, so use opcode here
+    ;
+    DB      0x48, 0xf, 0x6e, 0xf1
+    ret
+