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1 | #------------------------------------------------------------------------------ |
2 | # |
3 | # Copyright (c) 2006, Intel Corporation |
4 | # All rights reserved. This program and the accompanying materials |
5 | # are licensed and made available under the terms and conditions of the BSD License |
6 | # which accompanies this distribution. The full text of the license may be found at |
7 | # http://opensource.org/licenses/bsd-license.php |
8 | # |
9 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, |
10 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. |
11 | # |
12 | # Module Name: |
13 | # |
14 | # RShiftU64.asm |
15 | # |
16 | # Abstract: |
17 | # |
18 | # 64-bit logical right shift function for IA-32 |
19 | # |
20 | #------------------------------------------------------------------------------ |
21 | |
22 | .686: |
23 | .code: |
24 | |
2cad7af6 |
25 | .global _InternalMathRShiftU64 |
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26 | _InternalMathRShiftU64: |
27 | movb 12(%esp),%cl |
28 | xorl %edx,%edx |
29 | movl 8(%esp),%eax |
30 | testb $32,%cl |
31 | cmovz %eax, %edx |
32 | cmovz 0x4(%esp), %eax |
33 | shrdl %cl,%edx,%eax |
34 | shr %cl,%edx |
35 | ret |