mirror of https://github.com/YosysHQ/abc.git
94 lines
3.0 KiB
C
94 lines
3.0 KiB
C
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/**CFile****************************************************************
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FileName [simSym.c]
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SystemName [ABC: Logic synthesis and verification system.]
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PackageName [Network and node package.]
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Synopsis [Simulation to determine two-variable symmetries.]
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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: simSym.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
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***********************************************************************/
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#include "abc.h"
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#include "sim.h"
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////////////////////////////////////////////////////////////////////////
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/// DECLARATIONS ///
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////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////
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/// FUNCTION DEFITIONS ///
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////////////////////////////////////////////////////////////////////////
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/**Function*************************************************************
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Synopsis [Computes two variable symmetries.]
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Description []
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SideEffects []
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SeeAlso []
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***********************************************************************/
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int Sim_ComputeTwoVarSymms( Abc_Ntk_t * pNtk )
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{
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Sym_Man_t * p;
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Vec_Ptr_t * vResult;
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int Result;
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int i, clk = clock();
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// srand( time(NULL) );
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srand( 0xABC );
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// start the simulation manager
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p = Sym_ManStart( pNtk );
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p->nPairsTotal = Sim_UtilCountAllPairs( p->vSuppFun, p->nSimWords, p->vPairsTotal );
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// detect symmetries using circuit structure
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Sim_SymmsStructCompute( pNtk, p->vMatrSymms );
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p->nPairsSymm = p->nPairsSymmStr = Sim_UtilCountPairs( p->vMatrSymms, p->vPairsSym );
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printf( "Total = %6d. Sym = %6d. NonSym = %6d. Remaining = %6d.\n",
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p->nPairsTotal, p->nPairsSymm, p->nPairsNonSymm, p->nPairsTotal-p->nPairsSymm-p->nPairsNonSymm );
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// detect symmetries using simulation
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for ( i = 1; i <= 1000; i++ )
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{
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// generate random pattern
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Sim_UtilGetRandom( p->uPatRand, p->nSimWords );
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// simulate this pattern
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Sim_SymmsSimulate( p, p->uPatRand, p->vMatrNonSymms );
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if ( i % 100 != 0 )
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continue;
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// count the number of pairs
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p->nPairsSymm = Sim_UtilCountPairs( p->vMatrSymms, p->vPairsSym );
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p->nPairsNonSymm = Sim_UtilCountPairs( p->vMatrNonSymms, p->vPairsNonSym );
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printf( "Total = %6d. Sym = %6d. NonSym = %6d. Remaining = %6d.\n",
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p->nPairsTotal, p->nPairsSymm, p->nPairsNonSymm, p->nPairsTotal-p->nPairsSymm-p->nPairsNonSymm );
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}
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Result = p->nPairsSymm;
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vResult = p->vMatrSymms;
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// p->vMatrSymms = NULL;
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Sym_ManStop( p );
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return Result;
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}
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////////////////////////////////////////////////////////////////////////
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/// END OF FILE ///
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////////////////////////////////////////////////////////////////////////
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