4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# This program and the accompanying materials
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# are licensed and made available under the terms and conditions of the BSD License
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# which accompanies this distribution. The full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# http://opensource.org/licenses/bsd-license.php.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Module Name:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# RShiftU64.S
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Abstract:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# 64-bit logical right shift function for IA-32
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync .686:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync .code:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncASM_GLOBAL ASM_PFX(InternalMathRShiftU64)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# UINT64
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# EFIAPI
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# InternalMathRShiftU64 (
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# IN UINT64 Operand,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# IN UINTN Count
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# );
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncASM_PFX(InternalMathRShiftU64):
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movb 12(%esp), %cl # cl <- Count
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync xorl %edx, %edx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movl 8(%esp), %eax
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync testb $32, %cl # Count >= 32?
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync cmovz %eax, %edx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync cmovz 0x4(%esp), %eax
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync shrdl %cl, %edx, %eax
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync shr %cl, %edx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ret