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/**CFile****************************************************************
FileName [ioReadBench.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Command processing package.]
Synopsis [Procedures to read BENCH files.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: ioReadBench.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "io.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
static Abc_Ntk_t * Io_ReadBenchNetwork( Extra_FileReader_t * p );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Reads the network from a BENCH file.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Abc_Ntk_t * Io_ReadBench( char * pFileName, int fCheck )
{
Extra_FileReader_t * p;
Abc_Ntk_t * pNtk;
// start the file
p = Extra_FileReaderAlloc( pFileName, "#", "\n\r", " \t,()=" );
if ( p == NULL )
return NULL;
// read the network
pNtk = Io_ReadBenchNetwork( p );
Extra_FileReaderFree( p );
if ( pNtk == NULL )
return NULL;
// make sure that everything is okay with the network structure
if ( fCheck && !Abc_NtkCheckRead( pNtk ) )
{
printf( "Io_ReadBench: The network check has failed.\n" );
Abc_NtkDelete( pNtk );
return NULL;
}
return pNtk;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Abc_Ntk_t * Io_ReadBenchNetwork( Extra_FileReader_t * p )
{
ProgressBar * pProgress;
Vec_Ptr_t * vTokens;
Abc_Ntk_t * pNtk;
Abc_Obj_t * pNode;
Vec_Str_t * vString;
char * pType, ** ppNames;
int iLine, nNames;
// allocate the empty network
pNtk = Abc_NtkStartRead( Extra_FileReaderGetFileName(p) );
// go through the lines of the file
vString = Vec_StrAlloc( 100 );
pProgress = Extra_ProgressBarStart( stdout, Extra_FileReaderGetFileSize(p) );
for ( iLine = 0; vTokens = Extra_FileReaderGetTokens(p); iLine++ )
{
Extra_ProgressBarUpdate( pProgress, Extra_FileReaderGetCurPosition(p), NULL );
if ( vTokens->nSize == 1 )
{
printf( "%s: Wrong input file format.\n", Extra_FileReaderGetFileName(p) );
Vec_StrFree( vString );
Abc_NtkDelete( pNtk );
return NULL;
}
// get the type of the line
if ( strncmp( vTokens->pArray[0], "INPUT", 5 ) == 0 )
Io_ReadCreatePi( pNtk, vTokens->pArray[1] );
else if ( strncmp( vTokens->pArray[0], "OUTPUT", 5 ) == 0 )
Io_ReadCreatePo( pNtk, vTokens->pArray[1] );
else
{
// get the node name and the node type
pType = vTokens->pArray[1];
if ( strcmp(pType, "DFF") == 0 )
{
pNode = Io_ReadCreateLatch( pNtk, vTokens->pArray[2], vTokens->pArray[0] );
Abc_LatchSetInit0( pNode );
}
else
{
// create a new node and add it to the network
ppNames = (char **)vTokens->pArray + 2;
nNames = vTokens->nSize - 2;
pNode = Io_ReadCreateNode( pNtk, vTokens->pArray[0], ppNames, nNames );
// assign the cover
if ( strcmp(pType, "AND") == 0 )
Abc_ObjSetData( pNode, Abc_SopCreateAnd(pNtk->pManFunc, nNames, NULL) );
else if ( strcmp(pType, "OR") == 0 )
Abc_ObjSetData( pNode, Abc_SopCreateOr(pNtk->pManFunc, nNames, NULL) );
else if ( strcmp(pType, "NAND") == 0 )
Abc_ObjSetData( pNode, Abc_SopCreateNand(pNtk->pManFunc, nNames) );
else if ( strcmp(pType, "NOR") == 0 )
Abc_ObjSetData( pNode, Abc_SopCreateNor(pNtk->pManFunc, nNames) );
else if ( strcmp(pType, "XOR") == 0 )
Abc_ObjSetData( pNode, Abc_SopCreateXor(pNtk->pManFunc, nNames) );
else if ( strcmp(pType, "NXOR") == 0 || strcmp(pType, "XNOR") == 0 )
Abc_ObjSetData( pNode, Abc_SopCreateNxor(pNtk->pManFunc, nNames) );
else if ( strncmp(pType, "BUF", 3) == 0 )
Abc_ObjSetData( pNode, Abc_SopCreateBuf(pNtk->pManFunc) );
else if ( strcmp(pType, "NOT") == 0 )
Abc_ObjSetData( pNode, Abc_SopCreateInv(pNtk->pManFunc) );
else if ( strncmp(pType, "MUX", 3) == 0 )
Abc_ObjSetData( pNode, Abc_SopRegister(pNtk->pManFunc, "1-0 1\n-11 1\n") );
else if ( strncmp(pType, "vdd", 3) == 0 )
Abc_ObjSetData( pNode, Abc_SopRegister( pNtk->pManFunc, " 1\n" ) );
else if ( strncmp(pType, "gnd", 3) == 0 )
Abc_ObjSetData( pNode, Abc_SopRegister( pNtk->pManFunc, " 0\n" ) );
else
{
printf( "Io_ReadBenchNetwork(): Cannot determine gate type \"%s\" in line %d.\n", pType, Extra_FileReaderGetLineNumber(p, 0) );
Vec_StrFree( vString );
Abc_NtkDelete( pNtk );
return NULL;
}
}
}
}
Extra_ProgressBarStop( pProgress );
Vec_StrFree( vString );
// check if constant have been added
// if ( pNet = Abc_NtkFindNet( pNtk, "vdd" ) )
// Io_ReadCreateConst( pNtk, "vdd", 1 );
// if ( pNet = Abc_NtkFindNet( pNtk, "gnd" ) )
// Io_ReadCreateConst( pNtk, "gnd", 0 );
Abc_NtkFinalizeRead( pNtk );
return pNtk;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
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