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diff --git a/MdePkg/Library/BaseLib/Arm/SetJumpLongJump.S b/MdePkg/Library/BaseLib/Arm/SetJumpLongJump.S
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+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006 - 2009, Intel Corporation<BR>
+# Portions copyright (c) 2008-2009 Apple Inc.<BR>
+# All rights reserved. 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.
+#
+#------------------------------------------------------------------------------
+.text
+.p2align 2
+
+.globl ASM_PFX(SetJump)
+.globl ASM_PFX(InternalLongJump)
+
+#/**
+# Saves the current CPU context that can be restored with a call to LongJump() and returns 0.#
+#
+# Saves the current CPU context in the buffer specified by JumpBuffer and returns 0. The initial
+# call to SetJump() must always return 0. Subsequent calls to LongJump() cause a non-zero
+# value to be returned by SetJump().
+#
+# If JumpBuffer is NULL, then ASSERT().
+# For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().
+#
+# @param JumpBuffer A pointer to CPU context buffer.
+#
+#**/
+#
+#UINTN
+#EFIAPI
+#SetJump (
+# IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer // R0
+# );
+#
+ASM_PFX(SetJump):
+ mov r3, r13
+ stmia r0, {r3-r12,r14}
+ eor r0, r0, r0
+ bx lr
+
+#/**
+# Restores the CPU context that was saved with SetJump().#
+#
+# Restores the CPU context from the buffer specified by JumpBuffer.
+# This function never returns to the caller.
+# Instead is resumes execution based on the state of JumpBuffer.
+#
+# @param JumpBuffer A pointer to CPU context buffer.
+# @param Value The value to return when the SetJump() context is restored.
+#
+#**/
+#VOID
+#EFIAPI
+#InternalLongJump (
+# IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer, // R0
+# IN UINTN Value // R1
+# );
+#
+ASM_PFX(InternalLongJump):
+ ldmia r0, {r3-r12,r14}
+ mov r13, r3
+ mov r0, r1
+ bx lr
+
+ASM_FUNCTION_REMOVE_IF_UNREFERENCED()