1#/** @file 2# Compiler intrinsic for ARM compiler 3# 4# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> 5# This program and the accompanying materials 6# are licensed and made available under the terms and conditions of the BSD License 7# which accompanies this distribution. The full text of the license may be found at 8# http)://opensource.org/licenses/bsd-license.php 9# 10# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.; 12# 13#**/ 14# 15 16#include <AsmMacroIoLib.h> 17 18.syntax unified 19 20ASM_FUNC(__switchu8) 21 ldrb ip,[lr,#-1] 22 cmp r0,ip 23 ldrbcc r0,[lr,r0] 24 ldrbcs r0,[lr,ip] 25 add ip,lr,r0,LSL #1 26 bx ip 27 28