Resync the GNU assembly to the MASM code.
[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / RShiftU64.s
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
25 .global InternalMathRShiftU64
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