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.text
17.syntax unified
18.p2align 2
19
20GCC_ASM_EXPORT(__switch16)
21
22ASM_PFX(__switch16):
23    ldrh      ip, [lr, #-1]
24    cmp       r0, ip
25    add       r0, lr, r0, lsl #1
26    ldrshcc   r0, [r0, #1]
27    add       ip, lr, ip, lsl #1
28    ldrshcs   r0, [ip, #1]
29    add       ip, lr, r0, lsl #1
30    bx        ip
31
32
33