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/**CFile****************************************************************
FileName [fraigApi.c]
PackageName [FRAIG: Functionally reduced AND-INV graphs.]
Synopsis [Access APIs for the FRAIG manager and node.]
Author [Alan Mishchenko <alanmi@eecs.berkeley.edu>]
Affiliation [UC Berkeley]
Date [Ver. 2.0. Started - October 1, 2004]
Revision [$Id: fraigApi.c,v 1.2 2005/07/08 01:01:30 alanmi Exp $]
***********************************************************************/
#include "fraigInt.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Access functions to read the data members of the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Fraig_NodeVec_t * Fraig_ManReadVecInputs( Fraig_Man_t * p ) { return p->vInputs; }
Fraig_NodeVec_t * Fraig_ManReadVecOutputs( Fraig_Man_t * p ) { return p->vOutputs; }
Fraig_NodeVec_t * Fraig_ManReadVecNodes( Fraig_Man_t * p ) { return p->vNodes; }
Fraig_Node_t ** Fraig_ManReadInputs ( Fraig_Man_t * p ) { return p->vInputs->pArray; }
Fraig_Node_t ** Fraig_ManReadOutputs( Fraig_Man_t * p ) { return p->vOutputs->pArray; }
Fraig_Node_t ** Fraig_ManReadNodes( Fraig_Man_t * p ) { return p->vNodes->pArray; }
int Fraig_ManReadInputNum ( Fraig_Man_t * p ) { return p->vInputs->nSize; }
int Fraig_ManReadOutputNum( Fraig_Man_t * p ) { return p->vOutputs->nSize; }
int Fraig_ManReadNodeNum( Fraig_Man_t * p ) { return p->vNodes->nSize; }
Fraig_Node_t * Fraig_ManReadConst1 ( Fraig_Man_t * p ) { return p->pConst1; }
Fraig_Node_t * Fraig_ManReadIthNode( Fraig_Man_t * p, int i ) { assert ( i < p->vNodes->nSize ); return p->vNodes->pArray[i]; }
char ** Fraig_ManReadInputNames( Fraig_Man_t * p ) { return p->ppInputNames; }
char ** Fraig_ManReadOutputNames( Fraig_Man_t * p ) { return p->ppOutputNames; }
char * Fraig_ManReadVarsInt( Fraig_Man_t * p ) { return (char *)p->vVarsInt; }
char * Fraig_ManReadSat( Fraig_Man_t * p ) { return (char *)p->pSat; }
int Fraig_ManReadFuncRed( Fraig_Man_t * p ) { return p->fFuncRed; }
int Fraig_ManReadFeedBack( Fraig_Man_t * p ) { return p->fFeedBack; }
int Fraig_ManReadDoSparse( Fraig_Man_t * p ) { return p->fDoSparse; }
int Fraig_ManReadChoicing( Fraig_Man_t * p ) { return p->fChoicing; }
int Fraig_ManReadVerbose( Fraig_Man_t * p ) { return p->fVerbose; }
int * Fraig_ManReadModel( Fraig_Man_t * p ) { return p->pModel; }
// returns the number of patterns used for random simulation (this number is fixed for the FRAIG run)
int Fraig_ManReadPatternNumRandom( Fraig_Man_t * p ) { return p->nWordsRand * 32; }
// returns the number of dynamic patterns accumulated at runtime (include SAT solver counter-examples and distance-1 patterns derived from them)
int Fraig_ManReadPatternNumDynamic( Fraig_Man_t * p ) { return p->iWordStart * 32; }
// returns the number of dynamic patterns proved useful to distinquish some FRAIG nodes (this number is more than 0 after the first garbage collection of patterns)
int Fraig_ManReadPatternNumDynamicFiltered( Fraig_Man_t * p ) { return p->iPatsPerm; }
// returns the number of times FRAIG package timed out
int Fraig_ManReadSatFails( Fraig_Man_t * p ) { return p->nSatFailsReal; }
// returns the number of conflicts in the SAT solver
int Fraig_ManReadConflicts( Fraig_Man_t * p ) { return p->pSat? Msat_SolverReadBackTracks(p->pSat) : 0; }
// returns the number of inspections in the SAT solver
int Fraig_ManReadInspects( Fraig_Man_t * p ) { return p->pSat? Msat_SolverReadInspects(p->pSat) : 0; }
/**Function*************************************************************
Synopsis [Access functions to set the data members of the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Fraig_ManSetFuncRed( Fraig_Man_t * p, int fFuncRed ) { p->fFuncRed = fFuncRed; }
void Fraig_ManSetFeedBack( Fraig_Man_t * p, int fFeedBack ) { p->fFeedBack = fFeedBack; }
void Fraig_ManSetDoSparse( Fraig_Man_t * p, int fDoSparse ) { p->fDoSparse = fDoSparse; }
void Fraig_ManSetChoicing( Fraig_Man_t * p, int fChoicing ) { p->fChoicing = fChoicing; }
void Fraig_ManSetTryProve( Fraig_Man_t * p, int fTryProve ) { p->fTryProve = fTryProve; }
void Fraig_ManSetVerbose( Fraig_Man_t * p, int fVerbose ) { p->fVerbose = fVerbose; }
void Fraig_ManSetTimeToGraph( Fraig_Man_t * p, int Time ) { p->timeToAig = Time; }
void Fraig_ManSetTimeToNet( Fraig_Man_t * p, int Time ) { p->timeToNet = Time; }
void Fraig_ManSetTimeTotal( Fraig_Man_t * p, int Time ) { p->timeTotal = Time; }
void Fraig_ManSetOutputNames( Fraig_Man_t * p, char ** ppNames ) { p->ppOutputNames = ppNames; }
void Fraig_ManSetInputNames( Fraig_Man_t * p, char ** ppNames ) { p->ppInputNames = ppNames; }
/**Function*************************************************************
Synopsis [Access functions to read the data members of the node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Fraig_Node_t * Fraig_NodeReadData0( Fraig_Node_t * p ) { return p->pData0; }
Fraig_Node_t * Fraig_NodeReadData1( Fraig_Node_t * p ) { return p->pData1; }
int Fraig_NodeReadNum( Fraig_Node_t * p ) { return p->Num; }
Fraig_Node_t * Fraig_NodeReadOne( Fraig_Node_t * p ) { assert (!Fraig_IsComplement(p)); return p->p1; }
Fraig_Node_t * Fraig_NodeReadTwo( Fraig_Node_t * p ) { assert (!Fraig_IsComplement(p)); return p->p2; }
Fraig_Node_t * Fraig_NodeReadNextE( Fraig_Node_t * p ) { return p->pNextE; }
Fraig_Node_t * Fraig_NodeReadRepr( Fraig_Node_t * p ) { return p->pRepr; }
int Fraig_NodeReadNumRefs( Fraig_Node_t * p ) { return p->nRefs; }
int Fraig_NodeReadNumFanouts( Fraig_Node_t * p ) { return p->nFanouts; }
int Fraig_NodeReadSimInv( Fraig_Node_t * p ) { return p->fInv; }
int Fraig_NodeReadNumOnes( Fraig_Node_t * p ) { return p->nOnes; }
// returns the pointer to the random simulation patterns (their number is returned by Fraig_ManReadPatternNumRandom)
// memory pointed to by this and the following procedure is maintained by the FRAIG package and exists as long as the package runs
unsigned * Fraig_NodeReadPatternsRandom( Fraig_Node_t * p ) { return p->puSimR; }
// returns the pointer to the dynamic simulation patterns (their number is returned by Fraig_ManReadPatternNumDynamic or Fraig_ManReadPatternNumDynamicFiltered)
// if the number of patterns is not evenly divisible by 32, the patterns beyond the given number contain garbage
unsigned * Fraig_NodeReadPatternsDynamic( Fraig_Node_t * p ) { return p->puSimD; }
/**Function*************************************************************
Synopsis [Access functions to set the data members of the node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Fraig_NodeSetData0( Fraig_Node_t * p, Fraig_Node_t * pData ) { p->pData0 = pData; }
void Fraig_NodeSetData1( Fraig_Node_t * p, Fraig_Node_t * pData ) { p->pData1 = pData; }
/**Function*************************************************************
Synopsis [Checks the type of the node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Fraig_NodeIsConst( Fraig_Node_t * p ) { return (Fraig_Regular(p))->Num == 0; }
int Fraig_NodeIsVar( Fraig_Node_t * p ) { return (Fraig_Regular(p))->NumPi >= 0; }
int Fraig_NodeIsAnd( Fraig_Node_t * p ) { return (Fraig_Regular(p))->NumPi < 0 && (Fraig_Regular(p))->Num > 0; }
int Fraig_NodeComparePhase( Fraig_Node_t * p1, Fraig_Node_t * p2 ) { assert( !Fraig_IsComplement(p1) ); assert( !Fraig_IsComplement(p2) ); return p1->fInv ^ p2->fInv; }
/**Function*************************************************************
Synopsis [Returns a new primary input node.]
Description [If the node with this number does not exist,
create a new PI node with this number.]
SideEffects []
SeeAlso []
***********************************************************************/
Fraig_Node_t * Fraig_ManReadIthVar( Fraig_Man_t * p, int i )
{
int k;
if ( i < 0 )
{
printf( "Requesting a PI with a negative number\n" );
return NULL;
}
// create the PIs to fill in the interval
if ( i >= p->vInputs->nSize )
for ( k = p->vInputs->nSize; k <= i; k++ )
Fraig_NodeCreatePi( p );
return p->vInputs->pArray[i];
}
/**Function*************************************************************
Synopsis [Creates a new PO node.]
Description [This procedure may take a complemented node.]
SideEffects []
SeeAlso []
***********************************************************************/
void Fraig_ManSetPo( Fraig_Man_t * p, Fraig_Node_t * pNode )
{
// internal node may be a PO two times
Fraig_Regular(pNode)->fNodePo = 1;
Fraig_NodeVecPush( p->vOutputs, pNode );
}
/**Function*************************************************************
Synopsis [Perfoms the AND operation with functional hashing.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Fraig_Node_t * Fraig_NodeAnd( Fraig_Man_t * p, Fraig_Node_t * p1, Fraig_Node_t * p2 )
{
return Fraig_NodeAndCanon( p, p1, p2 );
}
/**Function*************************************************************
Synopsis [Perfoms the OR operation with functional hashing.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Fraig_Node_t * Fraig_NodeOr( Fraig_Man_t * p, Fraig_Node_t * p1, Fraig_Node_t * p2 )
{
return Fraig_Not( Fraig_NodeAndCanon( p, Fraig_Not(p1), Fraig_Not(p2) ) );
}
/**Function*************************************************************
Synopsis [Perfoms the EXOR operation with functional hashing.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Fraig_Node_t * Fraig_NodeExor( Fraig_Man_t * p, Fraig_Node_t * p1, Fraig_Node_t * p2 )
{
return Fraig_NodeMux( p, p1, Fraig_Not(p2), p2 );
}
/**Function*************************************************************
Synopsis [Perfoms the MUX operation with functional hashing.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Fraig_Node_t * Fraig_NodeMux( Fraig_Man_t * p, Fraig_Node_t * pC, Fraig_Node_t * pT, Fraig_Node_t * pE )
{
Fraig_Node_t * pAnd1, * pAnd2, * pRes;
pAnd1 = Fraig_NodeAndCanon( p, pC, pT ); Fraig_Ref( pAnd1 );
pAnd2 = Fraig_NodeAndCanon( p, Fraig_Not(pC), pE ); Fraig_Ref( pAnd2 );
pRes = Fraig_NodeOr( p, pAnd1, pAnd2 );
Fraig_RecursiveDeref( p, pAnd1 );
Fraig_RecursiveDeref( p, pAnd2 );
Fraig_Deref( pRes );
return pRes;
}
/**Function*************************************************************
Synopsis [Sets the node to be equivalent to the given one.]
Description [This procedure is a work-around for the equivalence check.
Does not verify the equivalence. Use at the user's risk.]
SideEffects []
SeeAlso []
***********************************************************************/
void Fraig_NodeSetChoice( Fraig_Man_t * pMan, Fraig_Node_t * pNodeOld, Fraig_Node_t * pNodeNew )
{
// assert( pMan->fChoicing );
pNodeNew->pNextE = pNodeOld->pNextE;
pNodeOld->pNextE = pNodeNew;
pNodeNew->pRepr = pNodeOld;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
|
