#------------------------------------------------------------------------------ # # 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 #------------------------------------------------------------------------------ # UINT64 # EFIAPI # InternalMathRShiftU64 ( # IN UINT64 Operand, # IN UINTN Count # ); #------------------------------------------------------------------------------ _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