diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/Ia32/RShiftU64.s')
-rw-r--r-- | MdePkg/Library/BaseLib/Ia32/RShiftU64.s | 74 |
1 files changed, 35 insertions, 39 deletions
diff --git a/MdePkg/Library/BaseLib/Ia32/RShiftU64.s b/MdePkg/Library/BaseLib/Ia32/RShiftU64.s index 5b681e391b..efedcf751b 100644 --- a/MdePkg/Library/BaseLib/Ia32/RShiftU64.s +++ b/MdePkg/Library/BaseLib/Ia32/RShiftU64.s @@ -1,39 +1,35 @@ -#------------------------------------------------------------------------------
-#
-# 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
-
-
-
+#------------------------------------------------------------------------------ +# +# 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 +# +#------------------------------------------------------------------------------ + + .686: + .code: + +.global InternalMathRShiftU64 +_InternalMathRShiftU64: + movb 12(%esp),%cl + xorl %edx,%edx + movl 8(%esp),%eax + testb $32,%cl + cmovz %eax, %edx + cmovz 0x4(%esp), %eax + shrdl %cl,%edx,%eax + shr %cl,%edx + ret |