1 files changed, 33 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseLib/X64/WriteCr0.nasm b/roms/edk2/MdePkg/Library/BaseLib/X64/WriteCr0.nasm
new file mode 100644
index 000000000..d351396ff
--- /dev/null
+++ b/roms/edk2/MdePkg/Library/BaseLib/X64/WriteCr0.nasm
@@ -0,0 +1,33 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Module Name:
+;
+;   WriteCr0.Asm
+;
+; Abstract:
+;
+;   AsmWriteCr0 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    DEFAULT REL
+    SECTION .text
+
+;------------------------------------------------------------------------------
+; UINTN
+; EFIAPI
+; AsmWriteCr0 (
+;   UINTN  Cr0
+;   );
+;------------------------------------------------------------------------------
+global ASM_PFX(AsmWriteCr0)
+ASM_PFX(AsmWriteCr0):
+    mov     cr0, rcx
+    mov     rax, rcx
+    ret
+