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//
// Copyright (c) 2011, ARM Limited. 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.
//
//
#include <AsmMacroIoLib.h>
#include <Base.h>
#include <AutoGen.h>
IMPORT PrePiCommonExceptionEntry
EXPORT PrePiVectorTable
PRESERVE8
AREA PrePeiCoreException, CODE, READONLY, CODEALIGN, ALIGN=5
//============================================================
//Default Exception Handlers
//============================================================
//TODO: there should be better way to handle the exceptions during the early stage. At the moment they are spinning in infinite loop
PrePiVectorTable
b _DefaultResetHandler
b _DefaultUndefined
b _DefaultSWI
b _DefaultPrefetchAbort
b _DefaultDataAbort
b _DefaultReserved
b _DefaultIrq
b _DefaultFiq
//
// Default Exception handlers: There is no plan to return from any of these exceptions.
// No context saving at all.
//
_DefaultResetHandler
mov r1, lr
cps #0x13 ; Switch to SVC for common stack
mov r0, #0
blx PrePiCommonExceptionEntry
_DefaultUndefined
sub r1, LR, #4
cps #0x13 ; Switch to SVC for common stack
mov r0, #1
blx PrePiCommonExceptionEntry
_DefaultSWI
sub r1, LR, #4
cps #0x13 ; Switch to SVC for common stack
mov r0, #2
blx PrePiCommonExceptionEntry
_DefaultPrefetchAbort
sub r1, LR, #4
cps #0x13 ; Switch to SVC for common stack
mov r0, #3
blx PrePiCommonExceptionEntry
_DefaultDataAbort
sub r1, LR, #8
cps #0x13 ; Switch to SVC for common stack
mov r0, #4
blx PrePiCommonExceptionEntry
_DefaultReserved
mov r1, lr
cps #0x13 ; Switch to SVC for common stack
mov r0, #5
blx PrePiCommonExceptionEntry
_DefaultIrq
sub r1, LR, #4
cps #0x13 ; Switch to SVC for common stack
mov r0, #6
blx PrePiCommonExceptionEntry
_DefaultFiq
sub r1, LR, #4
cps #0x13 ; Switch to SVC for common stack
mov r0, #7
blx PrePiCommonExceptionEntry
END
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