// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).

 // All rights reserved.

 // This component and the accompanying materials are made available

 // under the terms of the License "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:

 // e32test\misc\t_cp0.cia

 // 

 //

 #include <e32test.h>

 #include <cpudefs.h>

 #include "nk_cpu.h"

 __NAKED__ TUint32 BCUCTL()

 	{

 	asm("mrc p13, 0, r0, c0, c1, 0 ");

 	__JUMP(,lr);

 	}

 __NAKED__ void GetAcc0(TInt64&)

 	{

 	MRA(0,1,2);

 	asm("stmia r0, {r1,r2} ");

 	__JUMP(,lr);

 	}

 __NAKED__ void SetAcc0(const TInt64&)

 	{

 	asm("ldmia r0, {r1,r2} ");

 	MAR(0,1,2);

 	__JUMP(,lr);

 	}

 __NAKED__ void InnerProduct(TInt64& /*aResult*/, const TInt16* /*aVec1*/, const TInt16* /*aVec2*/, TInt /*aLength*/)

 //

 // Calculate the inner product of vectors using the DSP coprocessor

 //

 	{

 	asm("str lr, [sp, #-4]! ");

 	asm("mov r12, #0 ");

 	asm("mov r14, #0 ");

 	MAR(0,12,14);

 	asm("1: ");

 	asm("ldrh r12, [r1], #2 ");

 	asm("ldrh r14, [r2], #2 ");

 	MIABB(0,12,14);

 	asm("subs r3, r3, #1 ");

 	asm("bne 1b ");

 	MRA(0,12,14);

 	asm("stmia r0, {r12,r14} ");

 	asm("ldr pc, [sp], #4 ");

 	}

 __NAKED__ void InnerProduct2(TInt64& /*aResult*/, const TInt16* /*aVec1*/, const TInt16* /*aVec2*/, TInt /*aLength*/)

 //

 // Calculate the inner product of vectors using the normal multiply instructions

 //

 	{

 	asm("stmfd sp!, {r4-r5,lr} ");

 	asm("mov r4, #0 ");

 	asm("mov r5, #0 ");

 	asm("1: ");

 	asm("ldrsh r12, [r1], #2 ");

 	asm("ldrsh r14, [r2], #2 ");

 	asm("smlal r4, r5, r12, r14 ");

 	asm("subs r3, r3, #1 ");

 	asm("bne 1b ");

 	asm("stmia r0, {r4,r5} ");

 	asm("ldmfd sp!, {r4-r5,pc} ");

 	}