audk/BeagleBoardPkg/Library/BeagleBoardSystemLib/GoLittleEndian.S

28 lines
877 B
ArmAsm

#------------------------------------------------------------------------------
#
# Copyright (c) 2008-2009 Apple Inc. All rights reserved.
#
# All rights reserved. This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#------------------------------------------------------------------------------
.text
.align 3
.globl ASM_PFX(GoLittleEndian)
// r0 is target address
ASM_PFX(GoLittleEndian):
// Switch to SVC Mode
mov r2,#0xD3 // SVC mode
msr CPSR_c,r2 // Switch modes
bx r0