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Allowing "lutexact" to take truth table from the current network.

This commit is contained in:
Alan Mishchenko 2025-07-21 07:56:30 -07:00
parent a511d753a6
commit ff56eed4b3
2 changed files with 33 additions and 8 deletions
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23
src/base/abci/abc.c
View File

@ -10617,11 +10617,12 @@ int Abc_CommandLutExact( Abc_Frame_t * pAbc, int argc, char ** argv )
extern int Exa3_ManExactSynthesis( Bmc_EsPar_t * pPars );
extern void Exa3_ManExactSynthesis2( Bmc_EsPar_t * pPars );
extern void Exa3_ManExactSynthesisRand( Bmc_EsPar_t * pPars );
extern char * Abc_NtkReadTruth( Abc_Ntk_t * pNtk );
int c;
Bmc_EsPar_t Pars, * pPars = &Pars;
Bmc_EsParSetDefault( pPars );
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "INKTFMSYiaocfgvh" ) ) != EOF )
while ( ( c = Extra_UtilGetopt( argc, argv, "INKTFUSYiaorfgvh" ) ) != EOF )
{
switch ( c )
{
@ -10678,10 +10679,10 @@ int Abc_CommandLutExact( Abc_Frame_t * pAbc, int argc, char ** argv )
pPars->nRandFuncs = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
break;
case 'M':
case 'U':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-M\" should be followed by an integer.\n" );
Abc_Print( -1, "Command line switch \"-U\" should be followed by an integer.\n" );
goto usage;
}
pPars->nMintNum = atoi(argv[globalUtilOptind]);
@ -10716,7 +10717,7 @@ int Abc_CommandLutExact( Abc_Frame_t * pAbc, int argc, char ** argv )
case 'o':
pPars->fFewerVars ^= 1;
break;
case 'c':
case 'r':
pPars->fLutCascade ^= 1;
break;
case 'f':
@ -10736,6 +10737,12 @@ int Abc_CommandLutExact( Abc_Frame_t * pAbc, int argc, char ** argv )
}
if ( argc == globalUtilOptind + 1 )
pPars->pTtStr = argv[globalUtilOptind];
else if ( argc == globalUtilOptind && Abc_FrameReadNtk(pAbc) )
{
pPars->pTtStr = Abc_NtkReadTruth( Abc_FrameReadNtk(pAbc) );
if ( pPars->pTtStr )
pPars->nVars = Abc_NtkCiNum(Abc_FrameReadNtk(pAbc));
}
if ( pPars->pTtStr == NULL && pPars->pSymStr == NULL && pPars->nRandFuncs == 0 )
{
Abc_Print( -1, "Truth table should be given on the command line.\n" );
@ -10774,23 +10781,25 @@ int Abc_CommandLutExact( Abc_Frame_t * pAbc, int argc, char ** argv )
Exa3_ManExactSynthesis( pPars );
else
Exa3_ManExactSynthesis2( pPars );
if ( argc == globalUtilOptind && Abc_FrameReadNtk(pAbc) )
ABC_FREE( pPars->pTtStr );
return 0;
usage:
Abc_Print( -2, "usage: lutexact [-INKTFMS <num>] [-Y string] [-iaocfgvh] <hex>\n" );
Abc_Print( -2, "usage: lutexact [-INKTFUS <num>] [-Y string] [-iaorfgvh] <hex>\n" );
Abc_Print( -2, "\t exact synthesis of I-input function using N K-input gates\n" );
Abc_Print( -2, "\t-I <num> : the number of input variables [default = %d]\n", pPars->nVars );
Abc_Print( -2, "\t-N <num> : the number of K-input nodes [default = %d]\n", pPars->nNodes );
Abc_Print( -2, "\t-K <num> : the number of node fanins [default = %d]\n", pPars->nLutSize );
Abc_Print( -2, "\t-T <num> : the runtime limit in seconds [default = %d]\n", pPars->RuntimeLim );
Abc_Print( -2, "\t-F <num> : the number of random functions to try [default = unused]\n" );
Abc_Print( -2, "\t-M <num> : the number of positive minterms in the random function [default = unused]\n" );
Abc_Print( -2, "\t-U <num> : the number of positive minterms in the random function [default = unused]\n" );
Abc_Print( -2, "\t-S <num> : the random seed for random function generation with -F <num> [default = %d]\n", pPars->Seed );
Abc_Print( -2, "\t-Y <str> : charasteristic string of a symmetric function [default = %d]\n", pPars->pSymStr );
Abc_Print( -2, "\t-i : toggle using incremental solving [default = %s]\n", pPars->fUseIncr ? "yes" : "no" );
Abc_Print( -2, "\t-a : toggle using only AND-gates when K = 2 [default = %s]\n", pPars->fOnlyAnd ? "yes" : "no" );
Abc_Print( -2, "\t-o : toggle using additional optimizations [default = %s]\n", pPars->fFewerVars ? "yes" : "no" );
Abc_Print( -2, "\t-c : toggle synthesizing a single-rail cascade [default = %s]\n", pPars->fLutCascade ? "yes" : "no" );
Abc_Print( -2, "\t-r : toggle synthesizing a single-rail cascade [default = %s]\n", pPars->fLutCascade ? "yes" : "no" );
Abc_Print( -2, "\t-f : toggle fixing LUT inputs in cascade mapping [default = %s]\n", pPars->fLutInFixed ? "yes" : "no" );
Abc_Print( -2, "\t-g : toggle using Glucose 3.0 by Gilles Audemard and Laurent Simon [default = %s]\n", pPars->fGlucose ? "yes" : "no" );
Abc_Print( -2, "\t-v : toggle verbose printout [default = %s]\n", pPars->fVerbose ? "yes" : "no" );

18
src/base/abci/abcCas.c
View File

@ -962,7 +962,23 @@ Abc_Ntk_t * Abc_NtkLutCascadeGen( int nLutSize, int nStages, int nRails, int nSh
ABC_FREE( pLuts );
return pNew;
}
char * Abc_NtkReadTruth( Abc_Ntk_t * pNtk )
{
if ( Abc_NtkCiNum(pNtk) > 30 )
return NULL;
extern Gia_Man_t * Abc_NtkStrashToGia( Abc_Ntk_t * pNtk );
Gia_Man_t * pGia = Abc_NtkStrashToGia( pNtk );
word * pTruth1 = Gia_ObjComputeTruthTable( pGia, Gia_ManCo(pGia, 0) );
int nWords = Abc_TtWordNum(Abc_NtkCiNum(pNtk));
word * pCopy = ABC_ALLOC( word, nWords );
Abc_TtCopy( pCopy, pTruth1, nWords, 0 );
Gia_ManStop( pGia );
int nVars = Abc_NtkCiNum(pNtk);
char * pTtStr = ABC_CALLOC( char, nVars > 2 ? (1 << (nVars-2)) + 1 : 2 );
Extra_PrintHexadecimalString( pTtStr, (unsigned *)pCopy, nVars );
ABC_FREE( pCopy );
return pTtStr;
}
/**Function*************************************************************