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