os/kernelhwsrv/kernel/eka/euser/maths/um_std.h
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
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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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// e32\euser\maths\um_std.h
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// 
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//
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#include <e32std.h>
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#include <e32math.h>
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#include <u32exec.h>
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struct SReal32
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    {
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    unsigned man:23;
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    unsigned exp:8;
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    unsigned sign:1;
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    };
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#if defined(__DOUBLE_WORDS_SWAPPED__)
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struct SReal64
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    {
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    unsigned msm:20;
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    unsigned exp:11;
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    unsigned sign:1;
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    TUint lsm;
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    };
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#define DVAL(m0,m1,m2,m3,e)     {(TUint)((m0<<16)|m1),e+KExponentBias,0,(TUint)((m2<<16)|m3)}
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#else
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struct SReal64
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    {
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    TUint lsm;
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    unsigned msm:20;
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    unsigned exp:11;
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    unsigned sign:1;
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    };
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#define DVAL(m0,m1,m2,m3,e)     {(TUint)((m2<<16)|m3),(TUint)((m0<<16)|m1),e+KExponentBias,0}
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#endif
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enum TMathPanic
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    {
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	EMathDivideByZero,
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	EMathOverflow,
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	EMathUnderflow,
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	EMathBadOperand,
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    EMathUnknownError,
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	EMathUnexpectedError1
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    };
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GLREF_C void Panic(TMathPanic aPanic);
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