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abc/src/map/cov/covMinUtil.c

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/**CFile****************************************************************
FileName [covMinUtil.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Mapping into network of SOPs/ESOPs.]
Synopsis [Utilities.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: covMinUtil.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "covInt.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Min_CubeCreate( Vec_Str_t * vCover, Min_Cube_t * pCube, char Type )
{
int i;
assert( (int)pCube->nLits == Min_CubeCountLits(pCube) );
for ( i = 0; i < (int)pCube->nVars; i++ )
if ( Min_CubeHasBit(pCube, i*2) )
{
if ( Min_CubeHasBit(pCube, i*2+1) )
// fprintf( pFile, "-" );
Vec_StrPush( vCover, '-' );
else
// fprintf( pFile, "0" );
Vec_StrPush( vCover, '0' );
}
else
{
if ( Min_CubeHasBit(pCube, i*2+1) )
// fprintf( pFile, "1" );
Vec_StrPush( vCover, '1' );
else
// fprintf( pFile, "?" );
Vec_StrPush( vCover, '?' );
}
// fprintf( pFile, " 1\n" );
Vec_StrPush( vCover, ' ' );
Vec_StrPush( vCover, Type );
Vec_StrPush( vCover, '\n' );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Min_CoverCreate( Vec_Str_t * vCover, Min_Cube_t * pCover, char Type )
{
Min_Cube_t * pCube;
assert( pCover != NULL );
Vec_StrClear( vCover );
Min_CoverForEachCube( pCover, pCube )
Min_CubeCreate( vCover, pCube, Type );
Vec_StrPush( vCover, 0 );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Min_CubeWrite( FILE * pFile, Min_Cube_t * pCube )
{
int i;
assert( (int)pCube->nLits == Min_CubeCountLits(pCube) );
for ( i = 0; i < (int)pCube->nVars; i++ )
if ( Min_CubeHasBit(pCube, i*2) )
{
if ( Min_CubeHasBit(pCube, i*2+1) )
fprintf( pFile, "-" );
else
fprintf( pFile, "0" );
}
else
{
if ( Min_CubeHasBit(pCube, i*2+1) )
fprintf( pFile, "1" );
else
fprintf( pFile, "?" );
}
fprintf( pFile, " 1\n" );
// fprintf( pFile, " %d\n", pCube->nLits );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Min_CoverWrite( FILE * pFile, Min_Cube_t * pCover )
{
Min_Cube_t * pCube;
Min_CoverForEachCube( pCover, pCube )
Min_CubeWrite( pFile, pCube );
printf( "\n" );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Min_CoverWriteStore( FILE * pFile, Min_Man_t * p )
{
Min_Cube_t * pCube;
int i;
for ( i = 0; i <= p->nVars; i++ )
{
Min_CoverForEachCube( p->ppStore[i], pCube )
{
printf( "%2d : ", i );
if ( pCube == p->pBubble )
{
printf( "Bubble\n" );
continue;
}
Min_CubeWrite( pFile, pCube );
}
}
printf( "\n" );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Min_CoverWriteFile( Min_Cube_t * pCover, char * pName, int fEsop )
{
char Buffer[1000];
Min_Cube_t * pCube;
FILE * pFile;
int i;
sprintf( Buffer, "%s.%s", pName, fEsop? "esop" : "pla" );
for ( i = strlen(Buffer) - 1; i >= 0; i-- )
if ( Buffer[i] == '<' || Buffer[i] == '>' )
Buffer[i] = '_';
pFile = fopen( Buffer, "w" );
fprintf( pFile, "# %s cover for output %s generated by ABC on %s\n", fEsop? "ESOP":"SOP", pName, Extra_TimeStamp() );
fprintf( pFile, ".i %d\n", pCover? pCover->nVars : 0 );
fprintf( pFile, ".o %d\n", 1 );
fprintf( pFile, ".p %d\n", Min_CoverCountCubes(pCover) );
if ( fEsop ) fprintf( pFile, ".type esop\n" );
Min_CoverForEachCube( pCover, pCube )
Min_CubeWrite( pFile, pCube );
fprintf( pFile, ".e\n" );
fclose( pFile );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Min_CoverCheck( Min_Man_t * p )
{
Min_Cube_t * pCube;
int i;
for ( i = 0; i <= p->nVars; i++ )
Min_CoverForEachCube( p->ppStore[i], pCube )
assert( i == (int)pCube->nLits );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Min_CubeCheck( Min_Cube_t * pCube )
{
int i;
for ( i = 0; i < (int)pCube->nVars; i++ )
if ( Min_CubeGetVar( pCube, i ) == 0 )
return 0;
return 1;
}
/**Function*************************************************************
Synopsis [Converts the cover from the sorted structure.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Min_Cube_t * Min_CoverCollect( Min_Man_t * p, int nSuppSize )
{
Min_Cube_t * pCov = NULL, ** ppTail = &pCov;
Min_Cube_t * pCube, * pCube2;
int i;
for ( i = 0; i <= nSuppSize; i++ )
{
Min_CoverForEachCubeSafe( p->ppStore[i], pCube, pCube2 )
{
assert( i == (int)pCube->nLits );
*ppTail = pCube;
ppTail = &pCube->pNext;
assert( pCube->uData[0] ); // not a bubble
}
}
*ppTail = NULL;
return pCov;
}
/**Function*************************************************************
Synopsis [Sorts the cover in the increasing number of literals.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Min_CoverExpand( Min_Man_t * p, Min_Cube_t * pCover )
{
Min_Cube_t * pCube, * pCube2;
Min_ManClean( p, p->nVars );
Min_CoverForEachCubeSafe( pCover, pCube, pCube2 )
{
pCube->pNext = p->ppStore[pCube->nLits];
p->ppStore[pCube->nLits] = pCube;
p->nCubes++;
}
}
/**Function*************************************************************
Synopsis [Sorts the cover in the increasing number of literals.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Min_CoverSuppVarNum( Min_Man_t * p, Min_Cube_t * pCover )
{
Min_Cube_t * pCube;
int i, Counter;
if ( pCover == NULL )
return 0;
// clean the cube
for ( i = 0; i < (int)pCover->nWords; i++ )
p->pTemp->uData[i] = ~((unsigned)0);
// add the bit data
Min_CoverForEachCube( pCover, pCube )
for ( i = 0; i < (int)pCover->nWords; i++ )
p->pTemp->uData[i] &= pCube->uData[i];
// count the vars
Counter = 0;
for ( i = 0; i < (int)pCover->nVars; i++ )
Counter += ( Min_CubeGetVar(p->pTemp, i) != 3 );
return Counter;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
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