/** @file\r
64-bit arithmetic right shift function for IA-32.\r
\r
- Copyright (c) 2006, Intel Corporation<BR>\r
- All rights reserved. This program and the accompanying materials\r
- are licensed and made available under the terms and conditions of the BSD License\r
- which accompanies this distribution. The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php\r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+ Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>\r
+ SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
-#if _MSC_EXTENSIONS\r
\r
+\r
+\r
+/**\r
+ Shifts a 64-bit integer right between 0 and 63 bits. The high bits\r
+ are filled with original integer's bit 63. The shifted value is returned.\r
+\r
+ This function shifts the 64-bit value Operand to the right by Count bits. The\r
+ high Count bits are set to bit 63 of Operand. The shifted value is returned.\r
+\r
+ @param Operand The 64-bit operand to shift right.\r
+ @param Count The number of bits to shift right.\r
+\r
+ @return Operand arithmetically shifted right by Count.\r
+\r
+**/\r
UINT64\r
EFIAPI\r
InternalMathARShiftU64 (\r
mov eax, dword ptr [Operand + 4]\r
cdq\r
test cl, 32\r
- cmovz edx, eax\r
- cmovz eax, dword ptr [Operand + 0]\r
+ jnz L0\r
+ mov edx, eax\r
+ mov eax, dword ptr [Operand + 0]\r
+L0:\r
shrd eax, edx, cl\r
sar edx, cl\r
}\r
}\r
\r
-#endif\r