author | jjkang |
Fri, 11 Jun 2010 15:22:09 +0800 | |
changeset 2 | 806186ab5e14 |
parent 1 | 0a7b44b10206 |
permissions | -rw-r--r-- |
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// Copyright (c) 1997-2009 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\prbs.h |
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// |
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// |
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#ifndef __PRBS_H__ |
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#define __PRBS_H__ |
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#include <e32cmn.h> |
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LOCAL_C TUint Random(TUint* aSeed) |
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{ |
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TUint x = aSeed[0]; |
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TUint r3 = x >> 1; |
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r3 |= (aSeed[1] << 31); |
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aSeed[1] = x & 1; |
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r3 ^= (x << 12); |
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x = r3 ^ (r3 >> 20); |
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aSeed[0] = x; |
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return x; |
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} |
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#endif |