#------------------------------------------------------------------------------ # # 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: # # LShiftU64.asm # # Abstract: # # 64-bit left shift function for IA-32 # #------------------------------------------------------------------------------ .global _LShiftU64 _LShiftU64: movb 12(%esp),%cl xorl %eax,%eax movl 4(%esp),%edx testb $32,%cl cmovz %edx, %eax cmovz 8(%esp), %edx shldl %cl,%eax,%edx shll %cl,%eax ret