]>
Commit | Line | Data |
---|---|---|
e1f414b6 | 1 | /** @file\r |
2 | Math worker functions.\r | |
3 | \r | |
bb817c56 HT |
4 | Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r |
5 | This program and the accompanying materials\r | |
e1f414b6 | 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 | |
127010dd | 8 | http://opensource.org/licenses/bsd-license.php.\r |
e1f414b6 | 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 | |
e1f414b6 | 15 | #include "BaseLibInternals.h"\r |
16 | \r | |
17 | /**\r | |
18 | Rotates a 32-bit integer left between 0 and 31 bits, filling the low bits\r | |
19 | with the high bits that were rotated.\r | |
20 | \r | |
21 | This function rotates the 32-bit value Operand to the left by Count bits. The\r | |
22 | low Count bits are fill with the high 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 left.\r | |
28 | @param Count The number of bits to rotate left.\r | |
29 | \r | |
9aa049d9 | 30 | @return Operand << Count\r |
e1f414b6 | 31 | \r |
32 | **/\r | |
33 | UINT32\r | |
34 | EFIAPI\r | |
35 | LRotU32 (\r | |
36 | IN UINT32 Operand,\r | |
37 | IN UINTN Count\r | |
38 | )\r | |
39 | {\r | |
5385a579 | 40 | ASSERT (Count < 32);\r |
e1f414b6 | 41 | return (Operand << Count) | (Operand >> (32 - Count));\r |
42 | }\r |