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abc/src/base/io/ioReadPla.c

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/**CFile****************************************************************
FileName [ioReadPla.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Command processing package.]
Synopsis [Procedure to read network from file.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: ioReadPla.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "ioAbc.h"
#include "misc/util/utilTruth.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
static Abc_Ntk_t * Io_ReadPlaNetwork( Extra_FileReader_t * p, int fZeros );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
static inline Io_CubesEqual( word * c1, word * c2, int nWords )
{
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
word ** Io_ReadPlaCubeSetup( Vec_Str_t * vSop )
{
char * pSop = Vec_StrArray( vSop ), * pCube, Lit;
int nCubes = Abc_SopGetCubeNum( pSop );
int nVars = Abc_SopGetVarNum( pSop );
int nWords = Abc_Bit6WordNum( 2*nVars ), c, v;
word ** pCs = ABC_ALLOC( word *, nCubes );
pCs[0] = ABC_CALLOC( word, nCubes * nWords );
for ( c = 1; c < nCubes; c++ )
pCs[c] = pCs[c-1] + nWords;
c = 0;
Abc_SopForEachCube( pSop, nVars, pCube )
{
Abc_CubeForEachVar( pCube, Lit, v )
if ( Lit == '0' )
Abc_TtSetBit( pCs[c], Abc_Var2Lit(v,0) );
else if ( Lit == '1' )
Abc_TtSetBit( pCs[c], Abc_Var2Lit(v,1) );
c++;
}
assert( c == nCubes );
return pCs;
}
void Io_ReadPlaCubeSetdown( Vec_Str_t * vSop, word ** pCs, int nCubes, int nVars )
{
char Symbs[3] = {'-', '0', '1'};
int c, v, Lit;
Vec_StrClear( vSop );
for ( c = 0; c < nCubes; c++ )
{
for ( v = 0; v < nVars && ((Lit = Abc_TtGetQua(pCs[c], v)), 1); v++ )
{
assert( Lit < 3 );
Vec_StrPush( vSop, Symbs[Lit] );
}
Vec_StrPrintStr( vSop, " 1\n" );
}
Vec_StrPush( vSop, 0 );
}
void Io_ReadPlaCubePreprocess( Vec_Str_t * vSop, int iCover, int fVerbose )
{
word ** pCs = Io_ReadPlaCubeSetup( vSop );
int nCubes = Abc_SopGetCubeNum( Vec_StrArray(vSop) );
int nVars = Abc_SopGetVarNum( Vec_StrArray(vSop) );
int nWords = Abc_Bit6WordNum( 2*nVars ), c, c1, c2;
Vec_Bit_t * vMarks = Vec_BitStart( nCubes );
if ( fVerbose )
printf( "Cover %5d : V =%5d C =%5d P =%9d ", iCover, nVars, nCubes, nCubes*nCubes/2 );
// check identical
for ( c1 = 0; c1 < nCubes; c1++ )
if ( !Vec_BitEntry(vMarks, c1) )
for ( c2 = c1 + 1; c2 < nCubes; c2++ )
if ( !Vec_BitEntry(vMarks, c2) )
if ( Abc_TtEqual(pCs[c1], pCs[c2], nWords) )
Vec_BitWriteEntry( vMarks, c2, 1 );
// remove identical
for ( c1 = c = 0; c1 < nCubes; c1++ )
if ( !Vec_BitEntry(vMarks, c1) )
{
if ( nCubes == c1 )
c++;
else
Abc_TtCopy( pCs[c++], pCs[c1], nWords, 0 );
}
if ( fVerbose )
printf( " Equal =%5d", nCubes - c );
// check contained
nCubes = c;
Vec_BitFill( vMarks, nCubes, 0 );
for ( c1 = 0; c1 < nCubes; c1++ )
if ( !Vec_BitEntry(vMarks, c1) )
for ( c2 = c1 + 1; c2 < nCubes; c2++ )
if ( !Vec_BitEntry(vMarks, c2) )
{
if ( Abc_TtImply(pCs[c1], pCs[c2], nWords) )
Vec_BitWriteEntry( vMarks, c2, 1 );
else if ( Abc_TtImply(pCs[c2], pCs[c1], nWords) )
{
Vec_BitWriteEntry( vMarks, c1, 1 );
break;
}
}
// remove contained
for ( c1 = c = 0; c1 < nCubes; c1++ )
if ( !Vec_BitEntry(vMarks, c1) )
{
if ( nCubes == c1 )
c++;
else
Abc_TtCopy( pCs[c++], pCs[c1], nWords, 0 );
}
if ( fVerbose )
printf( " Contain =%5d", nCubes - c );
nCubes = c;
// check distance-1
// translate
Io_ReadPlaCubeSetdown( vSop, pCs, nCubes, nVars );
// finalize
if ( fVerbose )
printf( "\n" );
Vec_BitFree( vMarks );
ABC_FREE( pCs[0] );
ABC_FREE( pCs );
}
/**Function*************************************************************
Synopsis [Reads the network from a PLA file.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Abc_Ntk_t * Io_ReadPla( char * pFileName, int fZeros, int fCheck )
{
Extra_FileReader_t * p;
Abc_Ntk_t * pNtk;
// start the file
p = Extra_FileReaderAlloc( pFileName, "#", "\n\r", " \t|" );
// p = Extra_FileReaderAlloc( pFileName, "", "\n\r", " \t|" );
if ( p == NULL )
return NULL;
// read the network
pNtk = Io_ReadPlaNetwork( p, fZeros );
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_ReadPla: The network check has failed.\n" );
Abc_NtkDelete( pNtk );
return NULL;
}
return pNtk;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Abc_Ntk_t * Io_ReadPlaNetwork( Extra_FileReader_t * p, int fZeros )
{
ProgressBar * pProgress;
Vec_Ptr_t * vTokens;
Abc_Ntk_t * pNtk;
Abc_Obj_t * pTermPi, * pTermPo, * pNode;
Vec_Str_t ** ppSops = NULL;
char Buffer[100];
int nInputs = -1, nOutputs = -1, nProducts = -1;
char * pCubeIn, * pCubeOut;
int i, k, iLine, nDigits, nCubes;
// allocate the empty network
pNtk = Abc_NtkStartRead( Extra_FileReaderGetFileName(p) );
// go through the lines of the file
nCubes = 0;
pProgress = Extra_ProgressBarStart( stdout, Extra_FileReaderGetFileSize(p) );
while ( (vTokens = (Vec_Ptr_t *)Extra_FileReaderGetTokens(p)) )
{
Extra_ProgressBarUpdate( pProgress, Extra_FileReaderGetCurPosition(p), NULL );
iLine = Extra_FileReaderGetLineNumber( p, 0 );
// if it is the end of file, quit the loop
if ( strncmp( (char *)vTokens->pArray[0], ".e", 2 ) == 0 )
break;
// if it is the model name, get the name
if ( strcmp( (char *)vTokens->pArray[0], ".model" ) == 0 )
{
ABC_FREE( pNtk->pName );
pNtk->pName = Extra_UtilStrsav( (char *)vTokens->pArray[1] );
continue;
}
if ( vTokens->nSize == 1 )
{
printf( "%s (line %d): Wrong number of token.\n",
Extra_FileReaderGetFileName(p), iLine );
Abc_NtkDelete( pNtk );
Extra_ProgressBarStop( pProgress );
ABC_FREE( ppSops );
return NULL;
}
if ( strcmp( (char *)vTokens->pArray[0], ".i" ) == 0 )
nInputs = atoi((char *)vTokens->pArray[1]);
else if ( strcmp( (char *)vTokens->pArray[0], ".o" ) == 0 )
nOutputs = atoi((char *)vTokens->pArray[1]);
else if ( strcmp( (char *)vTokens->pArray[0], ".p" ) == 0 )
nProducts = atoi((char *)vTokens->pArray[1]);
else if ( strcmp( (char *)vTokens->pArray[0], ".ilb" ) == 0 )
{
if ( vTokens->nSize - 1 != nInputs )
printf( "Warning: Mismatch between the number of PIs on the .i line (%d) and the number of PIs on the .ilb line (%d).\n", nInputs, vTokens->nSize - 1 );
for ( i = 1; i < vTokens->nSize; i++ )
Io_ReadCreatePi( pNtk, (char *)vTokens->pArray[i] );
}
else if ( strcmp( (char *)vTokens->pArray[0], ".ob" ) == 0 )
{
if ( vTokens->nSize - 1 != nOutputs )
printf( "Warning: Mismatch between the number of POs on the .o line (%d) and the number of POs on the .ob line (%d).\n", nOutputs, vTokens->nSize - 1 );
for ( i = 1; i < vTokens->nSize; i++ )
Io_ReadCreatePo( pNtk, (char *)vTokens->pArray[i] );
}
else
{
// check if the input/output names are given
if ( Abc_NtkPiNum(pNtk) == 0 )
{
if ( nInputs == -1 )
{
printf( "%s: The number of inputs is not specified.\n", Extra_FileReaderGetFileName(p) );
Abc_NtkDelete( pNtk );
Extra_ProgressBarStop( pProgress );
ABC_FREE( ppSops );
return NULL;
}
nDigits = Abc_Base10Log( nInputs );
for ( i = 0; i < nInputs; i++ )
{
sprintf( Buffer, "x%0*d", nDigits, i );
Io_ReadCreatePi( pNtk, Buffer );
}
}
if ( Abc_NtkPoNum(pNtk) == 0 )
{
if ( nOutputs == -1 )
{
printf( "%s: The number of outputs is not specified.\n", Extra_FileReaderGetFileName(p) );
Abc_NtkDelete( pNtk );
Extra_ProgressBarStop( pProgress );
ABC_FREE( ppSops );
return NULL;
}
nDigits = Abc_Base10Log( nOutputs );
for ( i = 0; i < nOutputs; i++ )
{
sprintf( Buffer, "z%0*d", nDigits, i );
Io_ReadCreatePo( pNtk, Buffer );
}
}
if ( Abc_NtkNodeNum(pNtk) == 0 )
{ // first time here
// create the PO drivers and add them
// start the SOP covers
ppSops = ABC_ALLOC( Vec_Str_t *, nOutputs );
Abc_NtkForEachPo( pNtk, pTermPo, i )
{
ppSops[i] = Vec_StrAlloc( 100 );
// create the node
pNode = Abc_NtkCreateNode(pNtk);
// connect the node to the PO net
Abc_ObjAddFanin( Abc_ObjFanin0Ntk(pTermPo), pNode );
// connect the node to the PI nets
Abc_NtkForEachPi( pNtk, pTermPi, k )
Abc_ObjAddFanin( pNode, Abc_ObjFanout0Ntk(pTermPi) );
}
}
// read the cubes
if ( vTokens->nSize != 2 )
{
printf( "%s (line %d): Input and output cubes are not specified.\n",
Extra_FileReaderGetFileName(p), iLine );
Abc_NtkDelete( pNtk );
Extra_ProgressBarStop( pProgress );
ABC_FREE( ppSops );
return NULL;
}
pCubeIn = (char *)vTokens->pArray[0];
pCubeOut = (char *)vTokens->pArray[1];
if ( strlen(pCubeIn) != (unsigned)nInputs )
{
printf( "%s (line %d): Input cube length (%zu) differs from the number of inputs (%d).\n",
Extra_FileReaderGetFileName(p), iLine, strlen(pCubeIn), nInputs );
Abc_NtkDelete( pNtk );
return NULL;
}
if ( strlen(pCubeOut) != (unsigned)nOutputs )
{
printf( "%s (line %d): Output cube length (%zu) differs from the number of outputs (%d).\n",
Extra_FileReaderGetFileName(p), iLine, strlen(pCubeOut), nOutputs );
Abc_NtkDelete( pNtk );
Extra_ProgressBarStop( pProgress );
ABC_FREE( ppSops );
return NULL;
}
if ( fZeros )
{
for ( i = 0; i < nOutputs; i++ )
{
if ( pCubeOut[i] == '0' )
{
Vec_StrPrintStr( ppSops[i], pCubeIn );
Vec_StrPrintStr( ppSops[i], " 1\n" );
}
}
}
else
{
for ( i = 0; i < nOutputs; i++ )
{
if ( pCubeOut[i] == '1' )
{
Vec_StrPrintStr( ppSops[i], pCubeIn );
Vec_StrPrintStr( ppSops[i], " 1\n" );
}
}
}
nCubes++;
}
}
Extra_ProgressBarStop( pProgress );
if ( nProducts != -1 && nCubes != nProducts )
printf( "Warning: Mismatch between the number of cubes (%d) and the number on .p line (%d).\n",
nCubes, nProducts );
// add the SOP covers
Abc_NtkForEachPo( pNtk, pTermPo, i )
{
pNode = Abc_ObjFanin0Ntk( Abc_ObjFanin0(pTermPo) );
if ( ppSops[i]->nSize == 0 )
{
Abc_ObjRemoveFanins(pNode);
pNode->pData = Abc_SopRegister( (Mem_Flex_t *)pNtk->pManFunc, " 0\n" );
Vec_StrFree( ppSops[i] );
continue;
}
Vec_StrPush( ppSops[i], 0 );
Io_ReadPlaCubePreprocess( ppSops[i], i, 0 );
pNode->pData = Abc_SopRegister( (Mem_Flex_t *)pNtk->pManFunc, ppSops[i]->pArray );
Vec_StrFree( ppSops[i] );
}
ABC_FREE( ppSops );
Abc_NtkFinalizeRead( pNtk );
return pNtk;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
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