kernel/eka/euser/maths/um_std.h
author mikek
Tue, 15 Jun 2010 19:10:20 +0100
branchGCC_SURGE
changeset 156 12b6722e7753
parent 0 a41df078684a
permissions -rw-r--r--
1) Revised fix for Bug 2975 - [GCCE] Illegal inline assembler in kernel/eka/drivers/debug/rmdebug/d_rmd_stepping.cpp. Should have conditionally different code for __ARMCC__ and __GCCE_ 2) Fix for Bug 2976 - [GCCE] Overlapping naked function bodies break exception-handling. 3) Fix an incidental "impossible constraint in asm" gripe.

// Copyright (c) 1995-2009 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:
// e32\euser\maths\um_std.h
// 
//

#include <e32std.h>
#include <e32math.h>
#include <u32exec.h>

struct SReal32
    {
    unsigned man:23;
    unsigned exp:8;
    unsigned sign:1;
    };

#if defined(__DOUBLE_WORDS_SWAPPED__)
struct SReal64
    {
    unsigned msm:20;
    unsigned exp:11;
    unsigned sign:1;
    TUint lsm;
    };
#define DVAL(m0,m1,m2,m3,e)     {(TUint)((m0<<16)|m1),e+KExponentBias,0,(TUint)((m2<<16)|m3)}
#else
struct SReal64
    {
    TUint lsm;
    unsigned msm:20;
    unsigned exp:11;
    unsigned sign:1;
    };
#define DVAL(m0,m1,m2,m3,e)     {(TUint)((m2<<16)|m3),(TUint)((m0<<16)|m1),e+KExponentBias,0}
#endif

enum TMathPanic
    {
	EMathDivideByZero,
	EMathOverflow,
	EMathUnderflow,
	EMathBadOperand,
    EMathUnknownError,
	EMathUnexpectedError1
    };

GLREF_C void Panic(TMathPanic aPanic);