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878ddf1f | 1 | /** @file\r |
2 | Math worker functions.\r | |
3 | \r | |
4 | Copyright (c) 2006, Intel Corporation<BR>\r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include "BaseLibInternals.h"\r | |
16 | \r | |
17 | /**\r | |
18 | Rotates a 32-bit integer right between 0 and 31 bits, filling the high bits\r | |
19 | with the low bits that were rotated.\r | |
20 | \r | |
21 | This function rotates the 32-bit value Operand to the right by Count bits.\r | |
22 | The high Count bits are fill with the low Count bits of Operand. The rotated\r | |
23 | value is returned.\r | |
24 | \r | |
25 | If Count is greater than 31, then ASSERT().\r | |
26 | \r | |
27 | @param Operand The 32-bit operand to rotate right.\r | |
28 | @param Count The number of bits to rotate right.\r | |
29 | \r | |
30 | @return Operand >>> Count\r | |
31 | \r | |
32 | **/\r | |
33 | UINT32\r | |
34 | EFIAPI\r | |
35 | RRotU32 (\r | |
36 | IN UINT32 Operand,\r | |
37 | IN UINTN Count\r | |
38 | )\r | |
39 | {\r | |
40 | ASSERT (Count < sizeof (Operand) * 8);\r | |
41 | return (Operand >> Count) | (Operand << (32 - Count));\r | |
42 | }\r |