Home | History | Annotate | Download | only in Arm
      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 
     20 GCC_ASM_EXPORT(__switch16)
     21 
     22 ASM_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