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/**CFile****************************************************************
FileName [cut.h]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [K-feasible cut computation package.]
Synopsis [External declarations.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: .h,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#ifndef __CUT_H__
#define __CUT_H__
////////////////////////////////////////////////////////////////////////
/// INCLUDES ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// PARAMETERS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// BASIC TYPES ///
////////////////////////////////////////////////////////////////////////
typedef struct Cut_ManStruct_t_ Cut_Man_t;
typedef struct Cut_CutStruct_t_ Cut_Cut_t;
typedef struct Cut_ParamsStruct_t_ Cut_Params_t;
struct Cut_ParamsStruct_t_
{
int nVarsMax; // the max cut size ("k" of the k-feasible cuts)
int nKeepMax; // the max number of cuts kept at a node
int nIdsMax; // the max number of IDs of cut objects
int fTruth; // compute truth tables
int fHash; // hash cuts to detect unique
int fFilter; // filter dominated cuts
int fSeq; // compute sequential cuts
int fDrop; // drop cuts on the fly
int fVerbose; // the verbosiness flag
};
struct Cut_CutStruct_t_
{
unsigned uTruth : 16; // truth table for 4-input cuts
unsigned uPhase : 7; // the phase when mapping into a canonical form
unsigned fSimul : 1; // the value of cut's output at 000.. pattern
unsigned fCompl : 1; // the cut is complemented
unsigned fSeq : 1; // the cut is sequential
unsigned nVarsMax : 3; // the max number of vars [4-6]
unsigned nLeaves : 3; // the number of leaves [4-6]
Cut_Cut_t * pNext; // the next cut in the list
void * pData; // the user data
int pLeaves[0]; // the array of leaves
};
static inline unsigned * Cut_CutReadTruth( Cut_Cut_t * p ) { if ( p->nVarsMax == 4 ) return (unsigned *)p; return (unsigned *)(p->pLeaves + p->nVarsMax + p->fSeq); }
static inline unsigned Cut_CutReadPhase( Cut_Cut_t * p ) { return p->uPhase; }
static inline int Cut_CutReadLeaveNum( Cut_Cut_t * p ) { return p->nLeaves; }
static inline int * Cut_CutReadLeaves( Cut_Cut_t * p ) { return p->pLeaves; }
static inline void * Cut_CutReadData( Cut_Cut_t * p ) { return p->pData; }
static inline void * Cut_CutWriteData( Cut_Cut_t * p, void * pData ) { p->pData = pData; }
static inline void Cut_CutWriteTruth( Cut_Cut_t * p, unsigned * puTruth ) {
if ( p->nVarsMax == 4 ) { p->uTruth = *puTruth; return; }
p->pLeaves[p->nVarsMax + p->fSeq] = (int)puTruth[0];
if ( p->nVarsMax == 6 ) p->pLeaves[p->nVarsMax + p->fSeq + 1] = (int)puTruth[1];
}
////////////////////////////////////////////////////////////////////////
/// MACRO DEFITIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
/*=== cutMan.c ==========================================================*/
extern Cut_Man_t * Cut_ManStart( Cut_Params_t * pParams );
extern void Cut_ManStop( Cut_Man_t * p );
extern void Cut_ManPrintStats( Cut_Man_t * p );
extern void Cut_ManSetFanoutCounts( Cut_Man_t * p, Vec_Int_t * vFanCounts );
/*=== cutNode.c ==========================================================*/
extern void Cut_NodeSetTriv( Cut_Man_t * p, int Node );
extern Cut_Cut_t * Cut_NodeComputeCuts( Cut_Man_t * p, int Node, int Node0, int Node1, int fCompl0, int fCompl1 );
extern Cut_Cut_t * Cut_NodeUnionCuts( Cut_Man_t * p, Vec_Int_t * vNodes );
extern Cut_Cut_t * Cut_NodeReadCuts( Cut_Man_t * p, int Node );
extern void Cut_NodeWriteCuts( Cut_Man_t * p, int Node, Cut_Cut_t * pList );
extern void Cut_NodeFreeCuts( Cut_Man_t * p, int Node );
extern void Cut_NodeSetComputedAsNew( Cut_Man_t * p, int Node );
extern void Cut_NodeTryDroppingCuts( Cut_Man_t * p, int Node );
extern void Cut_CutPrint( Cut_Cut_t * pCut );
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
#endif
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