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// Copyright (c) 1995-2009 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\mmu\t_mwait.cia
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//
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//
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#include <e32test.h>
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#include <u32std.h>
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#include "d_shadow.h"
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#if defined(__CPU_ARM)
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#define INS8 asm(".word 0xe1a00000,0xe1a01001,0xe1a02002,0xe1a03003,0xe1a00000,0xe1a01001,0xe1a02002,0xe1a03003 ")
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#define INS16 INS8 ; INS8
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#define INS32 INS16 ; INS16
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#define INS64 INS32 ; INS32
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#define INS128 INS64 ; INS64
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#elif defined(__CPU_X86)
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#ifdef __GCC32__
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#define INC_EAX asm("inc eax");
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#else
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#define INC_EAX __asm inc eax
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#endif
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#define INS4 INC_EAX \
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INC_EAX \
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INC_EAX \
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INC_EAX
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#define INS8 INS4 INS4
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#define INS16 INS8 INS8
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#define INS32 INS16 INS16
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#define INS64 INS32 INS32
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#define INS128 INS64 INS64
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#define INS256 INS128 INS128
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#define INS512 INS256 INS256
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#endif
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__NAKED__ TLinAddr MemSpeedTest(TInt /*aLoopSize*/, TInt& /*aCount*/)
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{
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#if defined(__CPU_ARM)
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asm("memspeedtest: ");
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__SWITCH_TO_ARM;
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asm("movs r0, r0 ");
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asm("beq get_function_end "); // if loopsize=0, return end address of this function
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asm("mov r3, r3 ");
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asm("mov r3, #0 "); // count of how many loops done
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asm("adr r2, loopend ");
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asm("sub r2, r2, r0 "); // r2=point to branch back to in loop
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asm("loopstart: "); // from here to loopend must be 64k bytes
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS128;
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INS64;
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INS32;
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INS16;
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INS8;
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asm(".word 0xe1a00000,0xe1a01001,0xe1a02002 ");
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asm("add r3, r3, #1 "); // increment counter
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asm("str r3, [r1] "); // and store in aCount
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__JUMP(,r2); // branch back to start of loop
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asm("mov r0, r0 "); // two NOPs because of prefetch
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asm("mov r0, r0 ");
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asm("loopend: ");
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asm("get_function_end: ");
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asm("adr r0, memspeedtest_end ");
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__END_ARM;
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__JUMP(,lr);
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asm("memspeedtest_end: ");
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#elif defined(__CPU_X86)
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asm("mov ecx, [esp+4]"); // ecx=loop size
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asm("test ecx, ecx");
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asm("jz get_function_end"); // if zero, return function end address
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asm("mov edx, [esp+8]"); // edx=&aCount
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asm("lea ebx, loopend");
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asm("sub ebx, ecx"); // ebx=point to jump back to in loop
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asm("xor ecx, ecx"); // count of loops done
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asm("loopstart:"); // from here to loopend must be 64k bytes
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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311 |
INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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INS512;
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sl@0
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320 |
INS512;
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sl@0
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INS512;
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sl@0
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322 |
INS512;
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sl@0
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323 |
INS512;
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sl@0
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324 |
INS512;
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sl@0
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325 |
INS512;
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sl@0
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326 |
INS512;
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sl@0
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327 |
INS512;
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sl@0
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328 |
INS512;
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sl@0
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329 |
INS512;
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sl@0
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330 |
INS512;
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sl@0
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331 |
INS512;
|
|
sl@0
|
332 |
INS512;
|
|
sl@0
|
333 |
INS512;
|
|
sl@0
|
334 |
INS512;
|
|
sl@0
|
335 |
INS512;
|
|
sl@0
|
336 |
INS512;
|
|
sl@0
|
337 |
INS512;
|
|
sl@0
|
338 |
INS256;
|
|
sl@0
|
339 |
INS128;
|
|
sl@0
|
340 |
INS64;
|
|
sl@0
|
341 |
INS32;
|
|
sl@0
|
342 |
INS16;
|
|
sl@0
|
343 |
INS8;
|
|
sl@0
|
344 |
asm("inc ecx"); // increment loop counter
|
|
sl@0
|
345 |
asm("mov [edx], ecx"); // update aCount
|
|
sl@0
|
346 |
asm("jmp ebx"); // jump back
|
|
sl@0
|
347 |
asm("nop");
|
|
sl@0
|
348 |
asm("nop");
|
|
sl@0
|
349 |
asm("nop");
|
|
sl@0
|
350 |
asm("loopend:");
|
|
sl@0
|
351 |
asm("get_function_end:");
|
|
sl@0
|
352 |
asm("lea eax, memspeedtest_end");
|
|
sl@0
|
353 |
asm("ret");
|
|
sl@0
|
354 |
asm("memspeedtest_end:");
|
|
sl@0
|
355 |
#endif
|
|
sl@0
|
356 |
}
|
|
sl@0
|
357 |
|