/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  

*

*/

#include <platform.h>

#include "GeneralsDriver.h"

#include <kern_priv.h>		//temporary

#ifdef __WINS__

__NAKED__ TUint* IntStackPtr()

{

	return 0;

}

__NAKED__ TUint32 SPSR()

{

	return 0;

}

__NAKED__ void UsrModLr(TUint32* a)

{

	*a = 0;

}

#else

__NAKED__ TUint* IntStackPtr()

{

	asm("mrs r1, cpsr ");

	asm("bic r3, r1, #0x1f ");

//#ifdef __MISA__

//	asm("orr r3, r3, #0xd1 ");		// mode_fiq, all interrupts off

//#else

	asm("orr r3, r3, #0xd2 ");		// mode_irq, all interrupts off

//#endif

	asm("msr cpsr, r3 ");

	asm("mov r0, sp ");				// r0=sp_irq or sp_fiq

	asm("msr cpsr, r1 ");			// restore interrupts

	__JUMP(,lr);

}

__NAKED__ TUint32 SPSR()

{

	asm("mrs r0, spsr ");

	__JUMP(,lr);

}

__NAKED__ void UsrModLr(TUint32*)

{

	// r0 = address to store

	asm ("stmia r0,{lr}^");

	__JUMP(,lr);

}

#endif