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-rw-r--r--MdePkg/Library/BaseLib/Ia32/RShiftU64.S46
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diff --git a/MdePkg/Library/BaseLib/Ia32/RShiftU64.S b/MdePkg/Library/BaseLib/Ia32/RShiftU64.S
deleted file mode 100644
index 28102303f2..0000000000
--- a/MdePkg/Library/BaseLib/Ia32/RShiftU64.S
+++ /dev/null
@@ -1,46 +0,0 @@
-#------------------------------------------------------------------------------
-#
-# Copyright (c) 2006 - 2018, 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:
-#
-# RShiftU64.S
-#
-# Abstract:
-#
-# 64-bit logical right shift function for IA-32
-#
-#------------------------------------------------------------------------------
-
-
- .code:
-
-ASM_GLOBAL ASM_PFX(InternalMathRShiftU64)
-
-#------------------------------------------------------------------------------
-# UINT64
-# EFIAPI
-# InternalMathRShiftU64 (
-# IN UINT64 Operand,
-# IN UINTN Count
-# );
-#------------------------------------------------------------------------------
-ASM_PFX(InternalMathRShiftU64):
- movb 12(%esp), %cl # cl <- Count
- xorl %edx, %edx
- movl 8(%esp), %eax
- testb $32, %cl # Count >= 32?
- jnz L0
- movl %eax, %edx
- movl 0x4(%esp), %eax
-L0:
- shrdl %cl, %edx, %eax
- shr %cl, %edx
- ret