diff options
Diffstat (limited to 'EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseLib/RRotU64.c')
-rw-r--r-- | EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseLib/RRotU64.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseLib/RRotU64.c b/EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseLib/RRotU64.c new file mode 100644 index 0000000000..18b2482e3c --- /dev/null +++ b/EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseLib/RRotU64.c @@ -0,0 +1,50 @@ +/*++
+
+Copyright (c) 2004 - 2006, Intel Corporation
+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.
+
+
+Module Name:
+
+ RRotU64.c
+
+Abstract:
+
+ Math worker functions.
+
+--*/
+
+#include "BaseLibInternal.h"
+
+/**
+ 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.
+
+ If Count is greater than 63, then ASSERT().
+
+ @param Operand The 64-bit operand to rotate right.
+ @param Count The number of bits to rotate right.
+
+ @return Operand >>> Count
+
+**/
+UINT64
+EFIAPI
+RRotU64 (
+ IN UINT64 Operand,
+ IN UINTN Count
+ )
+{
+ ASSERT (Count < sizeof (Operand) * 8);
+ return InternalMathRRotU64 (Operand, Count);
+}
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