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-rw-r--r--MdePkg/Library/BaseLib/Ia32/RRotU64.c55
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diff --git a/MdePkg/Library/BaseLib/Ia32/RRotU64.c b/MdePkg/Library/BaseLib/Ia32/RRotU64.c
deleted file mode 100644
index 17fde84b9d..0000000000
--- a/MdePkg/Library/BaseLib/Ia32/RRotU64.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/** @file
- 64-bit right rotation for Ia32
-
- Copyright (c) 2006 - 2015, 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.
-
-**/
-
-
-
-
-/**
- Rotates a 64-bit integer right between 0 and 63 bits, filling
- the high bits with the high low bits that were rotated.
-
- This function rotates the 64-bit value Operand to the right by Count bits.
- The high Count bits are fill with the low Count bits of Operand. The rotated
- value is returned.
-
- @param Operand The 64-bit operand to rotate right.
- @param Count The number of bits to rotate right.
-
- @return Operand >>> Count
-
-**/
-UINT64
-EFIAPI
-InternalMathRRotU64 (
- IN UINT64 Operand,
- IN UINTN Count
- )
-{
- _asm {
- mov cl, byte ptr [Count]
- mov eax, dword ptr [Operand + 0]
- mov edx, dword ptr [Operand + 4]
- shrd ebx, eax, cl
- shrd eax, edx, cl
- rol ebx, cl
- shrd edx, ebx, cl
- test cl, 32 // Count >= 32?
- jz L0
- mov ecx, eax
- mov eax, edx
- mov edx, ecx
-L0:
- }
-}
-