[mirror_edk2.git] / ArmPkg / Library / CompilerIntrinsicsLib / Arm / switch.asm

///------------------------------------------------------------------------------ \r
//\r
// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
//\r
// This program and the accompanying materials\r
// are licensed and made available under the terms and conditions of the BSD License\r
// which accompanies this distribution.  The full text of the license may be found at\r
// http://opensource.org/licenses/bsd-license.php\r
//\r
// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
//\r
//------------------------------------------------------------------------------\r
\r
\r
\r
    EXPORT  __ARM_switch8\r
\r
    AREA  ArmSwitch, CODE, READONLY\r
  \r
__ARM_switch8\r
  LDRB    r12,[lr,#-1]\r
  CMP      r3,r12\r
  LDRBCC  r3,[lr,r3]\r
  LDRBCS  r3,[lr,r12]\r
  ADD      r12,lr,r3,LSL #1\r
  BX      r12\r
  \r
    END\r
Commit	Line	Data
1e57a462	1	///------------------------------------------------------------------------------ \r
	2	//\r
	3	// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
	4	//\r
	5	// This program and the accompanying materials\r
	6	// are licensed and made available under the terms and conditions of the BSD License\r
	7	// which accompanies this distribution. The full text of the license may be found at\r
	8	// http://opensource.org/licenses/bsd-license.php\r
	9	//\r
	10	// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	12	//\r
	13	//------------------------------------------------------------------------------\r
	14	\r
	15	\r
	16	\r
	17	EXPORT __ARM_switch8\r
	18	\r
	19	AREA ArmSwitch, CODE, READONLY\r
	20	\r
	21	__ARM_switch8\r
	22	LDRB r12,[lr,#-1]\r
	23	CMP r3,r12\r
	24	LDRBCC r3,[lr,r3]\r
	25	LDRBCS r3,[lr,r12]\r
	26	ADD r12,lr,r3,LSL #1\r
	27	BX r12\r
	28	\r
	29	END\r