1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
#------------------------------------------------------------------------------
#
# Copyright (c) 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.asm
#
# Abstract:
#
# 64-bit right rotation for Ia32
#
#------------------------------------------------------------------------------
.global _RRotU64
push %ebx
movb 16(%esp),%cl
movl 8(%esp),%eax
movl 12(%esp),%edx
shrdl %cl,%eax,%ebx
shrdl %cl,%edx,%eax
roll %cl,%ebx
shrdl %cl,%ebx,%edx
testb $32,%cl
cmovnz %eax, %ecx
cmovnz %edx, %eax
cmovnz %ecx, %edx
pop %ebx
ret
|
