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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\us_gcc.cpp
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//
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//
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#include "us_std.h"
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#include <e32math.h>
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extern "C" {
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EXPORT_C TInt64 __fixsfdi(TReal32 a1)
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//
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// Convert float to long long
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//
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{
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const TRealX f(a1);
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const TInt64 ret = f;
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return ret;
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}
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} // end of extern "C" declaration
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#ifndef __REALS_MACHINE_CODED__
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LOCAL_C void MathException(TInt aErrType)
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//
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// Decides on type of maths exception according to error and raises exception.
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// Added by AnnW, December 1996
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//
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{
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TExcType excType=EExcGeneral;
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switch (aErrType)
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{
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case KErrArgument: // error due to invalid operation
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excType=EExcFloatInvalidOperation;
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break;
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case KErrDivideByZero:
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excType=EExcFloatDivideByZero;
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break;
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case KErrOverflow:
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excType=EExcFloatOverflow;
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break;
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case KErrUnderflow:
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excType=EExcFloatUnderflow;
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break;
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/*
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// also errors due to inexact result
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case KErrInexact: // const not defined yet
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excType=EExcFloatInexact;
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break;
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*/
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default:
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// Unknown error
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Panic(EMathUnknownError);
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}
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User::RaiseException(excType);
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}
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EXPORT_C TReal32 __addsf3(TReal32 a1,TReal32 a2)
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//
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// Add two floats
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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TRealX res;
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TReal32 trg;
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x1.Add(res,x2); // need not check error because no underflow and others will not be lost in conversion
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TInt ret=res.GetTReal(trg);
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if (ret!=KErrNone)
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MathException(ret);
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return(trg);
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}
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EXPORT_C TReal64 __adddf3(TReal64 a1,TReal64 a2)
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//
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// Add two doubles
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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TRealX res;
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TReal64 trg;
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x1.Add(res,x2); // need not check error because no underflow and others will not be lost in conversion
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TInt ret=res.GetTReal(trg);
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if (ret!=KErrNone)
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MathException(ret);
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return(trg);
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}
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EXPORT_C TReal32 __subsf3(TReal32 a1,TReal32 a2)
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//
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// Subtract two floats
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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TRealX res;
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TReal32 trg;
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x1.Sub(res,x2); // need not check error because no underflow and others will not be lost in conversion
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TInt ret=res.GetTReal(trg);
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if (ret!=KErrNone)
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MathException(ret);
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return(trg);
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}
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EXPORT_C TReal64 __subdf3(TReal64 a1,TReal64 a2)
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//
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// Subtract two doubles
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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TRealX res;
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TReal64 trg;
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x1.Sub(res,x2); // need not check error because no underflow and others will not be lost in conversion
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TInt ret=res.GetTReal(trg);
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if (ret!=KErrNone)
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MathException(ret);
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return(trg);
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}
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EXPORT_C TInt __cmpsf3(TReal32 a1,TReal32 a2)
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//
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// Compare two floats
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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if (x1<x2)
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return(-1);
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if (x1>x2)
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return(1);
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return(0);
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}
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EXPORT_C TInt __cmpdf3(TReal64 a1,TReal64 a2)
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//
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// Compare two doubles
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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if (x1<x2)
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return(-1);
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if (x1>x2)
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return(1);
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return(0);
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}
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EXPORT_C TInt __eqsf2(TReal32 a1,TReal32 a2)
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//
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// Compare if two floats are equal
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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return (x1==x2 ? 0 : 1);
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}
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EXPORT_C TInt __eqdf2(TReal64 a1,TReal64 a2)
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//
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// Compare if two doubles are equal
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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return (x1==x2 ? 0 : 1);
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}
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EXPORT_C TInt __nesf2(TReal32 a1,TReal32 a2)
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//
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// Compare if two floats are not equal
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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return(x1!=x2 ? 1 : 0);
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}
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EXPORT_C TInt __nedf2(TReal64 a1,TReal64 a2)
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//
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// Compare if two doubles are not equal
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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return(x1!=x2 ? 1 : 0);
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}
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EXPORT_C TInt __gtsf2(TReal32 a1,TReal32 a2)
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//
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// Compare if one float is greater than another
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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return(x1>x2 ? +1 : -1);
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}
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EXPORT_C TInt __gtdf2(TReal64 a1,TReal64 a2)
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//
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// Compare if one double is greater than another
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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return(x1>x2 ? +1 : -1);
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}
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EXPORT_C TInt __gesf2(TReal32 a1,TReal32 a2)
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//
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// Compare if one float is greater than or equal to another
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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return(x1>=x2 ? 1 : -1);
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}
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EXPORT_C TInt __gedf2(TReal64 a1,TReal64 a2)
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//
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// Compare if one double is greater than or equal to another
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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return(x1>=x2 ? 1 : -1);
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}
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EXPORT_C TInt __ltsf2(TReal32 a1,TReal32 a2)
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//
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// Compare if one float is less than another
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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return(x1<x2 ? -1 : +1);
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}
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EXPORT_C TInt __ltdf2(TReal64 a1,TReal64 a2)
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//
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// Compare if one double is less than another
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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return(x1<x2 ? -1 : +1);
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}
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EXPORT_C TInt __lesf2(TReal32 a1,TReal32 a2)
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//
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// Compare if one float is less than or equal to another
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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return(x1<=x2 ? -1 : +1);
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}
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EXPORT_C TInt __ledf2(TReal64 a1,TReal64 a2)
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//
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303 |
// Compare if one double is less than or equal to another
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//
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{
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TRealX x1=a1;
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TRealX x2=a2;
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309 |
return(x1<=x2 ? -1 : +1);
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}
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311 |
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312 |
EXPORT_C TReal32 __mulsf3(TReal32 a1,TReal32 a2)
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313 |
//
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sl@0
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314 |
// Multiply two floats
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315 |
//
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sl@0
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316 |
{
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317 |
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318 |
TRealX x1=a1;
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319 |
TRealX x2=a2;
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sl@0
|
321 |
TRealX res;
|
|
sl@0
|
322 |
TReal32 trg;
|
|
sl@0
|
323 |
TInt ret=x1.Mult(res,x2);
|
|
sl@0
|
324 |
if (ret==KErrNone) // must check this because if underflow, error is lost in conversion
|
|
sl@0
|
325 |
ret=res.GetTReal(trg);
|
|
sl@0
|
326 |
if (ret!=KErrNone)
|
|
sl@0
|
327 |
MathException(ret);
|
|
sl@0
|
328 |
|
|
sl@0
|
329 |
return((TReal32)res);
|
|
sl@0
|
330 |
}
|
|
sl@0
|
331 |
|
|
sl@0
|
332 |
EXPORT_C TReal64 __muldf3(TReal64 a1,TReal64 a2)
|
|
sl@0
|
333 |
//
|
|
sl@0
|
334 |
// Multiply two doubles
|
|
sl@0
|
335 |
//
|
|
sl@0
|
336 |
{
|
|
sl@0
|
337 |
|
|
sl@0
|
338 |
TRealX x1=a1;
|
|
sl@0
|
339 |
TRealX x2=a2;
|
|
sl@0
|
340 |
|
|
sl@0
|
341 |
TRealX res;
|
|
sl@0
|
342 |
TReal64 trg;
|
|
sl@0
|
343 |
TInt ret=x1.Mult(res,x2);
|
|
sl@0
|
344 |
if (ret==KErrNone) // must check this because if underflow, error is lost in conversion
|
|
sl@0
|
345 |
ret=res.GetTReal(trg);
|
|
sl@0
|
346 |
if (ret!=KErrNone)
|
|
sl@0
|
347 |
MathException(ret);
|
|
sl@0
|
348 |
|
|
sl@0
|
349 |
return((TReal64)res);
|
|
sl@0
|
350 |
}
|
|
sl@0
|
351 |
|
|
sl@0
|
352 |
EXPORT_C TReal32 __divsf3(TReal32 a1,TReal32 a2)
|
|
sl@0
|
353 |
//
|
|
sl@0
|
354 |
// Divide two floats
|
|
sl@0
|
355 |
//
|
|
sl@0
|
356 |
{
|
|
sl@0
|
357 |
|
|
sl@0
|
358 |
TRealX x1=a1;
|
|
sl@0
|
359 |
TRealX x2=a2;
|
|
sl@0
|
360 |
|
|
sl@0
|
361 |
TRealX res;
|
|
sl@0
|
362 |
TReal32 trg;
|
|
sl@0
|
363 |
TInt ret=x1.Div(res,x2);
|
|
sl@0
|
364 |
if (ret==KErrNone) // must check this because if underflow, error is lost in conversion
|
|
sl@0
|
365 |
ret=res.GetTReal(trg);
|
|
sl@0
|
366 |
if (ret!=KErrNone)
|
|
sl@0
|
367 |
MathException(ret);
|
|
sl@0
|
368 |
|
|
sl@0
|
369 |
return((TReal32)res);
|
|
sl@0
|
370 |
}
|
|
sl@0
|
371 |
|
|
sl@0
|
372 |
EXPORT_C TReal64 __divdf3(TReal64 a1,TReal64 a2)
|
|
sl@0
|
373 |
//
|
|
sl@0
|
374 |
// Divide two doubles
|
|
sl@0
|
375 |
//
|
|
sl@0
|
376 |
{
|
|
sl@0
|
377 |
|
|
sl@0
|
378 |
TRealX x1=a1;
|
|
sl@0
|
379 |
TRealX x2=a2;
|
|
sl@0
|
380 |
|
|
sl@0
|
381 |
TRealX res;
|
|
sl@0
|
382 |
TReal64 trg;
|
|
sl@0
|
383 |
TInt ret=x1.Div(res,x2);
|
|
sl@0
|
384 |
if (ret==KErrNone) // must check this because if underflow, error is lost in conversion
|
|
sl@0
|
385 |
ret=res.GetTReal(trg);
|
|
sl@0
|
386 |
if (ret!=KErrNone)
|
|
sl@0
|
387 |
MathException(ret);
|
|
sl@0
|
388 |
|
|
sl@0
|
389 |
return((TReal64)res);
|
|
sl@0
|
390 |
}
|
|
sl@0
|
391 |
|
|
sl@0
|
392 |
EXPORT_C TReal32 __negsf2(TReal32 a1)
|
|
sl@0
|
393 |
//
|
|
sl@0
|
394 |
// Negate a float
|
|
sl@0
|
395 |
//
|
|
sl@0
|
396 |
{
|
|
sl@0
|
397 |
|
|
sl@0
|
398 |
TRealX x1=a1;
|
|
sl@0
|
399 |
return((TReal32)-x1);
|
|
sl@0
|
400 |
}
|
|
sl@0
|
401 |
|
|
sl@0
|
402 |
EXPORT_C TReal64 __negdf2(TReal64 a1)
|
|
sl@0
|
403 |
//
|
|
sl@0
|
404 |
// Negate a double
|
|
sl@0
|
405 |
//
|
|
sl@0
|
406 |
{
|
|
sl@0
|
407 |
|
|
sl@0
|
408 |
TRealX x1=a1;
|
|
sl@0
|
409 |
return((TReal64)-x1);
|
|
sl@0
|
410 |
}
|
|
sl@0
|
411 |
|
|
sl@0
|
412 |
EXPORT_C TReal32 __floatsisf(TInt a1)
|
|
sl@0
|
413 |
//
|
|
sl@0
|
414 |
// Convert int to float
|
|
sl@0
|
415 |
//
|
|
sl@0
|
416 |
{
|
|
sl@0
|
417 |
|
|
sl@0
|
418 |
return((TReal32)TRealX(a1));
|
|
sl@0
|
419 |
}
|
|
sl@0
|
420 |
|
|
sl@0
|
421 |
EXPORT_C TReal64 __floatsidf(TInt a1)
|
|
sl@0
|
422 |
//
|
|
sl@0
|
423 |
// Convert int to double
|
|
sl@0
|
424 |
//
|
|
sl@0
|
425 |
{
|
|
sl@0
|
426 |
|
|
sl@0
|
427 |
return((TReal64)TRealX(a1));
|
|
sl@0
|
428 |
}
|
|
sl@0
|
429 |
|
|
sl@0
|
430 |
EXPORT_C TInt __fixsfsi(TReal32 a1)
|
|
sl@0
|
431 |
//
|
|
sl@0
|
432 |
// Convert float to int
|
|
sl@0
|
433 |
//
|
|
sl@0
|
434 |
{
|
|
sl@0
|
435 |
|
|
sl@0
|
436 |
return((TInt)TRealX(a1));
|
|
sl@0
|
437 |
}
|
|
sl@0
|
438 |
|
|
sl@0
|
439 |
EXPORT_C TInt __fixdfsi(TReal64 a1)
|
|
sl@0
|
440 |
//
|
|
sl@0
|
441 |
// Convert double to int
|
|
sl@0
|
442 |
//
|
|
sl@0
|
443 |
{
|
|
sl@0
|
444 |
|
|
sl@0
|
445 |
return((TInt)TRealX(a1));
|
|
sl@0
|
446 |
}
|
|
sl@0
|
447 |
|
|
sl@0
|
448 |
EXPORT_C TReal64 __extendsfdf2(TReal32 a1)
|
|
sl@0
|
449 |
//
|
|
sl@0
|
450 |
// Convert a float to a double
|
|
sl@0
|
451 |
//
|
|
sl@0
|
452 |
{
|
|
sl@0
|
453 |
|
|
sl@0
|
454 |
return((TReal64)TRealX(a1));
|
|
sl@0
|
455 |
}
|
|
sl@0
|
456 |
|
|
sl@0
|
457 |
EXPORT_C TReal32 __truncdfsf2(TReal64 a1)
|
|
sl@0
|
458 |
//
|
|
sl@0
|
459 |
// Convert a double to a float
|
|
sl@0
|
460 |
// Raises an exception if conversion results in an error
|
|
sl@0
|
461 |
//
|
|
sl@0
|
462 |
{
|
|
sl@0
|
463 |
|
|
sl@0
|
464 |
TRealX x1=a1;
|
|
sl@0
|
465 |
|
|
sl@0
|
466 |
TInt ret;
|
|
sl@0
|
467 |
TReal32 trg;
|
|
sl@0
|
468 |
if ((ret=x1.GetTReal(trg))!=KErrNone)
|
|
sl@0
|
469 |
MathException(ret);
|
|
sl@0
|
470 |
|
|
sl@0
|
471 |
return(trg);
|
|
sl@0
|
472 |
}
|
|
sl@0
|
473 |
#endif //__REALS_MACHINE_CODED__
|