mirror of https://github.com/acidanthera/audk.git
40 lines
1.0 KiB
ArmAsm
40 lines
1.0 KiB
ArmAsm
|
#------------------------------------------------------------------------------
|
||
|
|
#
|
||
|
|
# 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:
|
||
|
|
#
|
||
|
|
# RShiftU64.asm
|
||
|
|
#
|
||
|
|
# Abstract:
|
||
|
|
#
|
||
|
|
# 64-bit logical right shift function for IA-32
|
||
|
|
#
|
||
|
|
#------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
.global _RShiftU64
|
||
|
|
_RShiftU64:
|
||
|
|
movb 12(%esp),%cl
|
||
|
|
xorl %edx,%edx
|
||
|
|
movl 8(%esp),%eax
|
||
|
|
testb $32,%cl
|
||
|
|
cmovz %eax, %edx
|
||
|
|
cmovz 4(%esp), %eax
|
||
|
|
shrdl %cl,%edx,%eax
|
||
|
|
shrl %cl,%edx
|
||
|
|
ret
|
||
|
|
|
||
|
|
|
||
|
|
|