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diff --git a/src/sat/xsat/xsatDouble.h b/src/sat/xsat/xsatDouble.h
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-/**CFile****************************************************************
-
- FileName [xdouble.h]
-
- SystemName [ABC: Logic synthesis and verification system.]
-
- PackageName []
-
- Synopsis [Double floating point number implementation.]
-
- Author [Alan Mishchenko, Bruno Schmitt]
-
- Affiliation [UC Berkeley / UFRGS]
-
- Date [Ver. 1.0. Started - February 11, 2017.]
-
- Revision []
-
-***********************************************************************/
-
-#ifndef ABC__sat__Xdbl__Xdbl_h
-#define ABC__sat__Xdbl__Xdbl_h
-
-#include "misc/util/abc_global.h"
-
-ABC_NAMESPACE_HEADER_START
-
-////////////////////////////////////////////////////////////////////////
-/// STRUCTURE DEFINITIONS ///
-////////////////////////////////////////////////////////////////////////
-
-/*
- The xdbl floating-point number is represented as a 64-bit unsigned int.
- The number is (2^Exp)*Mnt, where Exp is a 16-bit exponent and Mnt is a
- 48-bit mantissa. The decimal point is located between the MSB of Mnt,
- which is always 1, and the remaining 15 digits of Mnt.
-
- Currently, only positive numbers are represented.
-
- The range of possible values is [1.0; 2^(2^16-1)*1.111111111111111]
- that is, the smallest possible number is 1.0 and the largest possible
- number is 2^(---16 ones---).(1.---47 ones---)
-
- Comparison of numbers can be done by comparing the underlying unsigned ints.
-
- Only addition, multiplication, and division by 2^n are currently implemented.
-*/
-
-static inline word Abc_Dbl2Word( double Dbl ) { union { word x; double y; } v; v.y = Dbl; return v.x; }
-static inline double Abc_Word2Dbl( word Num ) { union { word x; double y; } v; v.x = Num; return v.y; }
-
-
-typedef word xdbl;
-
-static inline word Xdbl_Exp( xdbl a ) { return a >> 48; }
-static inline word Xdbl_Mnt( xdbl a ) { return (a << 16) >> 16; }
-
-static inline xdbl Xdbl_Create( word Exp, word Mnt ) { assert(!(Exp>>16) && (Mnt>>47)==(word)1); return (Exp<<48) | Mnt; }
-
-static inline xdbl Xdbl_Const1() { return Xdbl_Create( (word)0, (word)1 << 47 ); }
-static inline xdbl Xdbl_Const2() { return Xdbl_Create( (word)1, (word)1 << 47 ); }
-static inline xdbl Xdbl_Const3() { return Xdbl_Create( (word)1, (word)3 << 46 ); }
-static inline xdbl Xdbl_Const12() { return Xdbl_Create( (word)3, (word)3 << 46 ); }
-static inline xdbl Xdbl_Const1point5() { return Xdbl_Create( (word)0, (word)3 << 46 ); }
-static inline xdbl Xdbl_Const2point5() { return Xdbl_Create( (word)1, (word)5 << 45 ); }
-static inline xdbl Xdbl_Maximum() { return ~(word)0; }
-
-static inline double Xdbl_ToDouble( xdbl a ) { assert(Xdbl_Exp(a) < 1023); return Abc_Word2Dbl(((Xdbl_Exp(a) + 1023) << 52) | (((a<<17)>>17) << 5)); }
-static inline xdbl Xdbl_FromDouble( double a ) { word A = Abc_Dbl2Word(a); assert(a >= 1.0); return Xdbl_Create((A >> 52)-1023, (((word)1) << 47) | ((A << 12) >> 17)); }
-
-////////////////////////////////////////////////////////////////////////
-/// FUNCTION DEFINITIONS ///
-////////////////////////////////////////////////////////////////////////
-
-/**Function*************************************************************
-
- Synopsis [Adding two floating-point numbers.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-static inline xdbl Xdbl_Add( xdbl a, xdbl b )
-{
- word Exp, Mnt;
- if ( a < b ) a ^= b, b ^= a, a ^= b;
- assert( a >= b );
- Mnt = Xdbl_Mnt(a) + (Xdbl_Mnt(b) >> (Xdbl_Exp(a) - Xdbl_Exp(b)));
- Exp = Xdbl_Exp(a);
- if ( Mnt >> 48 ) // new MSB is created
- Exp++, Mnt >>= 1;
- if ( Exp >> 16 ) // overflow
- return Xdbl_Maximum();
- return Xdbl_Create( Exp, Mnt );
-}
-
-/**Function*************************************************************
-
- Synopsis [Multiplying two floating-point numbers.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-static inline xdbl Xdbl_Mul( xdbl a, xdbl b )
-{
- word Exp, Mnt, MntA, MntB, MntAh, MntBh, MntAl, MntBl;
- if ( a < b ) a ^= b, b ^= a, a ^= b;
- assert( a >= b );
- MntA = Xdbl_Mnt(a);
- MntB = Xdbl_Mnt(b);
- MntAh = MntA>>32;
- MntBh = MntB>>32;
- MntAl = (MntA<<32)>>32;
- MntBl = (MntB<<32)>>32;
- Mnt = ((MntAh * MntBh) << 17) + ((MntAl * MntBl) >> 47) + ((MntAl * MntBh) >> 15) + ((MntAh * MntBl) >> 15);
- Exp = Xdbl_Exp(a) + Xdbl_Exp(b);
- if ( Mnt >> 48 ) // new MSB is created
- Exp++, Mnt >>= 1;
- if ( Exp >> 16 ) // overflow
- return Xdbl_Maximum();
- return Xdbl_Create( Exp, Mnt );
-}
-
-/**Function*************************************************************
-
- Synopsis [Dividing floating point number by a degree of 2.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-static inline xdbl Xdbl_Div( xdbl a, unsigned Deg2 )
-{
- if ( Xdbl_Exp(a) >= (word)Deg2 )
- return Xdbl_Create( Xdbl_Exp(a) - Deg2, Xdbl_Mnt(a) );
- return Xdbl_Const1(); // underflow
-}
-
-/**Function*************************************************************
-
- Synopsis [Testing procedure.]
-
- Description [Helpful link https://www.h-schmidt.net/FloatConverter/IEEE754.html]
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-static inline void Xdbl_Test()
-{
- xdbl c1 = Xdbl_Const1();
- xdbl c2 = Xdbl_Const2();
- xdbl c3 = Xdbl_Const3();
- xdbl c12 = Xdbl_Const12();
- xdbl c1p5 = Xdbl_Const1point5();
- xdbl c2p5 = Xdbl_Const2point5();
-
- xdbl c1_ = Xdbl_FromDouble(1.0);
- xdbl c2_ = Xdbl_FromDouble(2.0);
- xdbl c3_ = Xdbl_FromDouble(3.0);
- xdbl c12_ = Xdbl_FromDouble(12.0);
- xdbl c1p5_ = Xdbl_FromDouble(1.5);
- xdbl c2p5_ = Xdbl_FromDouble(2.5);
-
- xdbl sum1 = Xdbl_Add(c1, c1p5);
- xdbl mul1 = Xdbl_Mul(c2, c1p5);
-
- xdbl sum2 = Xdbl_Add(c1p5, c2p5);
- xdbl mul2 = Xdbl_Mul(c1p5, c2p5);
-
- xdbl a = Xdbl_FromDouble(1.2929725);
- xdbl b = Xdbl_FromDouble(10.28828287);
- xdbl ab = Xdbl_Mul(a, b);
-
- xdbl ten100 = Xdbl_FromDouble( 1e100 );
- xdbl ten100_ = ABC_CONST(0x014c924d692ca61b);
-
- assert( ten100 == ten100_ );
-
-// float f1 = Xdbl_ToDouble(c1);
-// Extra_PrintBinary( stdout, (int *)&c1, 32 ); printf( "\n" );
-// Extra_PrintBinary( stdout, (int *)&f1, 32 ); printf( "\n" );
-
- printf( "1 = %lf\n", Xdbl_ToDouble(c1) );
- printf( "2 = %lf\n", Xdbl_ToDouble(c2) );
- printf( "3 = %lf\n", Xdbl_ToDouble(c3) );
- printf( "12 = %lf\n", Xdbl_ToDouble(c12) );
- printf( "1.5 = %lf\n", Xdbl_ToDouble(c1p5) );
- printf( "2.5 = %lf\n", Xdbl_ToDouble(c2p5) );
-
- printf( "Converted 1 = %lf\n", Xdbl_ToDouble(c1_) );
- printf( "Converted 2 = %lf\n", Xdbl_ToDouble(c2_) );
- printf( "Converted 3 = %lf\n", Xdbl_ToDouble(c3_) );
- printf( "Converted 12 = %lf\n", Xdbl_ToDouble(c12_) );
- printf( "Converted 1.5 = %lf\n", Xdbl_ToDouble(c1p5_) );
- printf( "Converted 2.5 = %lf\n", Xdbl_ToDouble(c2p5_) );
-
- printf( "1.0 + 1.5 = %lf\n", Xdbl_ToDouble(sum1) );
- printf( "2.0 * 1.5 = %lf\n", Xdbl_ToDouble(mul1) );
-
- printf( "1.5 + 2.5 = %lf\n", Xdbl_ToDouble(sum2) );
- printf( "1.5 * 2.5 = %lf\n", Xdbl_ToDouble(mul2) );
- printf( "12 / 2^2 = %lf\n", Xdbl_ToDouble(Xdbl_Div(c12, 2)) );
-
- printf( "12 / 2^2 = %lf\n", Xdbl_ToDouble(Xdbl_Div(c12, 2)) );
-
- printf( "%.16lf * %.16lf = %.16lf (%.16lf)\n", Xdbl_ToDouble(a), Xdbl_ToDouble(b), Xdbl_ToDouble(ab), 1.2929725 * 10.28828287 );
-
- assert( sum1 == c2p5 );
- assert( mul1 == c3 );
-}
-
-ABC_NAMESPACE_HEADER_END
-
-#endif
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