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// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// e32test\misc\t_cp0.cia
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//
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//
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#include <e32test.h>
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#include <cpudefs.h>
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#include "nk_cpu.h"
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__NAKED__ TUint32 BCUCTL()
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{
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asm("mrc p13, 0, r0, c0, c1, 0 ");
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__JUMP(,lr);
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}
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__NAKED__ void GetAcc0(TInt64&)
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{
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MRA(0,1,2);
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asm("stmia r0, {r1,r2} ");
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__JUMP(,lr);
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}
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__NAKED__ void SetAcc0(const TInt64&)
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{
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asm("ldmia r0, {r1,r2} ");
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MAR(0,1,2);
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__JUMP(,lr);
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}
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__NAKED__ void InnerProduct(TInt64& /*aResult*/, const TInt16* /*aVec1*/, const TInt16* /*aVec2*/, TInt /*aLength*/)
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//
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// Calculate the inner product of vectors using the DSP coprocessor
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//
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{
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asm("str lr, [sp, #-4]! ");
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asm("mov r12, #0 ");
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asm("mov r14, #0 ");
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MAR(0,12,14);
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asm("1: ");
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asm("ldrh r12, [r1], #2 ");
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asm("ldrh r14, [r2], #2 ");
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MIABB(0,12,14);
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asm("subs r3, r3, #1 ");
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asm("bne 1b ");
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MRA(0,12,14);
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asm("stmia r0, {r12,r14} ");
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asm("ldr pc, [sp], #4 ");
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}
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__NAKED__ void InnerProduct2(TInt64& /*aResult*/, const TInt16* /*aVec1*/, const TInt16* /*aVec2*/, TInt /*aLength*/)
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//
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// Calculate the inner product of vectors using the normal multiply instructions
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//
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{
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asm("stmfd sp!, {r4-r5,lr} ");
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asm("mov r4, #0 ");
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asm("mov r5, #0 ");
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asm("1: ");
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asm("ldrsh r12, [r1], #2 ");
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asm("ldrsh r14, [r2], #2 ");
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asm("smlal r4, r5, r12, r14 ");
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asm("subs r3, r3, #1 ");
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asm("bne 1b ");
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asm("stmia r0, {r4,r5} ");
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asm("ldmfd sp!, {r4-r5,pc} ");
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}
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