diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/Ia32/RShiftU64.S')
-rw-r--r-- | MdePkg/Library/BaseLib/Ia32/RShiftU64.S | 88 |
1 files changed, 44 insertions, 44 deletions
diff --git a/MdePkg/Library/BaseLib/Ia32/RShiftU64.S b/MdePkg/Library/BaseLib/Ia32/RShiftU64.S index ecb67e1552..1e747d43a0 100644 --- a/MdePkg/Library/BaseLib/Ia32/RShiftU64.S +++ b/MdePkg/Library/BaseLib/Ia32/RShiftU64.S @@ -1,44 +1,44 @@ -#------------------------------------------------------------------------------ -# -# Copyright (c) 2006 - 2008, 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.S -# -# Abstract: -# -# 64-bit logical right shift function for IA-32 -# -#------------------------------------------------------------------------------ - - .686: - .code: - -.globl ASM_PFX(InternalMathRShiftU64) - -#------------------------------------------------------------------------------ -# UINT64 -# EFIAPI -# InternalMathRShiftU64 ( -# IN UINT64 Operand, -# IN UINTN Count -# ); -#------------------------------------------------------------------------------ -ASM_PFX(InternalMathRShiftU64): - movb 12(%esp), %cl # cl <- Count - xorl %edx, %edx - movl 8(%esp), %eax - testb $32, %cl # Count >= 32? - cmovz %eax, %edx - cmovz 0x4(%esp), %eax - shrdl %cl, %edx, %eax - shr %cl, %edx - ret +#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006 - 2008, 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.S
+#
+# Abstract:
+#
+# 64-bit logical right shift function for IA-32
+#
+#------------------------------------------------------------------------------
+
+ .686:
+ .code:
+
+.globl ASM_PFX(InternalMathRShiftU64)
+
+#------------------------------------------------------------------------------
+# UINT64
+# EFIAPI
+# InternalMathRShiftU64 (
+# IN UINT64 Operand,
+# IN UINTN Count
+# );
+#------------------------------------------------------------------------------
+ASM_PFX(InternalMathRShiftU64):
+ movb 12(%esp), %cl # cl <- Count
+ xorl %edx, %edx
+ movl 8(%esp), %eax
+ testb $32, %cl # Count >= 32?
+ cmovz %eax, %edx
+ cmovz 0x4(%esp), %eax
+ shrdl %cl, %edx, %eax
+ shr %cl, %edx
+ ret
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