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Diffstat (limited to 'src/aig/fsim/fsimTsim.c')
| -rw-r--r-- | src/aig/fsim/fsimTsim.c | 415 |
1 files changed, 0 insertions, 415 deletions
diff --git a/src/aig/fsim/fsimTsim.c b/src/aig/fsim/fsimTsim.c deleted file mode 100644 index e05e6409..00000000 --- a/src/aig/fsim/fsimTsim.c +++ /dev/null @@ -1,415 +0,0 @@ -/**CFile**************************************************************** - - FileName [fsimTsim.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [Fast sequential AIG simulator.] - - Synopsis [Varius utilities.] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - June 20, 2005.] - - Revision [$Id: fsimTsim.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "fsimInt.h" - -ABC_NAMESPACE_IMPL_START - - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -#define FSIM_ZER 1 -#define FSIM_ONE 2 -#define FSIM_UND 3 - -static inline int Aig_XsimNotCond( int Value, int fCompl ) -{ - if ( Value == FSIM_UND ) - return FSIM_UND; - if ( Value == FSIM_ZER + fCompl ) - return FSIM_ZER; - return FSIM_ONE; -} -static inline int Aig_XsimAndCond( int Value0, int fCompl0, int Value1, int fCompl1 ) -{ - if ( Value0 == FSIM_UND || Value1 == FSIM_UND ) - return FSIM_UND; - if ( Value0 == FSIM_ZER + fCompl0 || Value1 == FSIM_ZER + fCompl1 ) - return FSIM_ZER; - return FSIM_ONE; -} - -static inline int Fsim_ManTerSimInfoGet( unsigned * pInfo, int i ) -{ - return 3 & (pInfo[i >> 4] >> ((i & 15) << 1)); -} -static inline void Fsim_ManTerSimInfoSet( unsigned * pInfo, int i, int Value ) -{ - assert( Value >= FSIM_ZER && Value <= FSIM_UND ); - Value ^= Fsim_ManTerSimInfoGet( pInfo, i ); - pInfo[i >> 4] ^= (Value << ((i & 15) << 1)); -} - -static inline unsigned * Fsim_ManTerStateNext( unsigned * pState, int nWords ) { return *((unsigned **)(pState + nWords)); } -static inline void Fsim_ManTerStateSetNext( unsigned * pState, int nWords, unsigned * pNext ) { *((unsigned **)(pState + nWords)) = pNext; } - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -static inline void Fsim_ManTerSimulateCi( Fsim_Man_t * p, int iNode, int iCi ) -{ - Fsim_ManTerSimInfoSet( p->pDataSim, iNode, Fsim_ManTerSimInfoGet(p->pDataSimCis, iCi) ); -} - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -static inline void Fsim_ManTerSimulateCo( Fsim_Man_t * p, int iCo, int iFan0 ) -{ - int Value = Fsim_ManTerSimInfoGet( p->pDataSim, Fsim_Lit2Var(iFan0) ); - Fsim_ManTerSimInfoSet( p->pDataSimCos, iCo, Aig_XsimNotCond( Value, Fsim_LitIsCompl(iFan0) ) ); -} - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -static inline void Fsim_ManTerSimulateNode( Fsim_Man_t * p, int iNode, int iFan0, int iFan1 ) -{ - int Value0 = Fsim_ManTerSimInfoGet( p->pDataSim, Fsim_Lit2Var(iFan0) ); - int Value1 = Fsim_ManTerSimInfoGet( p->pDataSim, Fsim_Lit2Var(iFan1) ); - Fsim_ManTerSimInfoSet( p->pDataSim, iNode, Aig_XsimAndCond( Value0, Fsim_LitIsCompl(iFan0), Value1, Fsim_LitIsCompl(iFan1) ) ); -} - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -static inline void Fsim_ManTerSimInfoInit( Fsim_Man_t * p ) -{ - int iPioNum, i; - Vec_IntForEachEntry( p->vCis2Ids, iPioNum, i ) - { - if ( iPioNum < p->nPis ) - Fsim_ManTerSimInfoSet( p->pDataSimCis, i, FSIM_UND ); - else - Fsim_ManTerSimInfoSet( p->pDataSimCis, i, FSIM_ZER ); - } -} - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -static inline void Fsim_ManTerSimInfoTransfer( Fsim_Man_t * p ) -{ - int iPioNum, i; - Vec_IntForEachEntry( p->vCis2Ids, iPioNum, i ) - { - if ( iPioNum < p->nPis ) - Fsim_ManTerSimInfoSet( p->pDataSimCis, i, FSIM_UND ); - else - Fsim_ManTerSimInfoSet( p->pDataSimCis, i, Fsim_ManTerSimInfoGet( p->pDataSimCos, p->nPos+iPioNum-p->nPis ) ); - } -} - - -/**Function************************************************************* - - Synopsis [Computes hash value of the node using its simulation info.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Fsim_ManTerStateHash( unsigned * pState, int nWords, int nTableSize ) -{ - static int s_FPrimes[128] = { - 1009, 1049, 1093, 1151, 1201, 1249, 1297, 1361, 1427, 1459, - 1499, 1559, 1607, 1657, 1709, 1759, 1823, 1877, 1933, 1997, - 2039, 2089, 2141, 2213, 2269, 2311, 2371, 2411, 2467, 2543, - 2609, 2663, 2699, 2741, 2797, 2851, 2909, 2969, 3037, 3089, - 3169, 3221, 3299, 3331, 3389, 3461, 3517, 3557, 3613, 3671, - 3719, 3779, 3847, 3907, 3943, 4013, 4073, 4129, 4201, 4243, - 4289, 4363, 4441, 4493, 4549, 4621, 4663, 4729, 4793, 4871, - 4933, 4973, 5021, 5087, 5153, 5227, 5281, 5351, 5417, 5471, - 5519, 5573, 5651, 5693, 5749, 5821, 5861, 5923, 6011, 6073, - 6131, 6199, 6257, 6301, 6353, 6397, 6481, 6563, 6619, 6689, - 6737, 6803, 6863, 6917, 6977, 7027, 7109, 7187, 7237, 7309, - 7393, 7477, 7523, 7561, 7607, 7681, 7727, 7817, 7877, 7933, - 8011, 8039, 8059, 8081, 8093, 8111, 8123, 8147 - }; - unsigned uHash; - int i; - uHash = 0; - for ( i = 0; i < nWords; i++ ) - uHash ^= pState[i] * s_FPrimes[i & 0x7F]; - return uHash % nTableSize; -} - -/**Function************************************************************* - - Synopsis [Inserts value into the table.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Fsim_ManTerStateLookup( unsigned * pState, int nWords, unsigned ** pBins, int nBins ) -{ - unsigned * pEntry; - int Hash; - Hash = Fsim_ManTerStateHash( pState, nWords, nBins ); - for ( pEntry = pBins[Hash]; pEntry; pEntry = Fsim_ManTerStateNext(pEntry, nWords) ) - if ( !memcmp( pEntry, pState, sizeof(unsigned) * nWords ) ) - return 1; - return 0; -} - -/**Function************************************************************* - - Synopsis [Inserts value into the table.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Fsim_ManTerStateInsert( unsigned * pState, int nWords, unsigned ** pBins, int nBins ) -{ - int Hash = Fsim_ManTerStateHash( pState, nWords, nBins ); - assert( !Fsim_ManTerStateLookup( pState, nWords, pBins, nBins ) ); - Fsim_ManTerStateSetNext( pState, nWords, pBins[Hash] ); - pBins[Hash] = pState; -} - -/**Function************************************************************* - - Synopsis [Inserts value into the table.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -unsigned * Fsim_ManTerStateCreate( unsigned * pInfo, int nPis, int nCis, int nWords ) -{ - unsigned * pRes; - int i; - pRes = (unsigned *)ABC_CALLOC( char, sizeof(unsigned) * nWords + sizeof(unsigned *) ); - for ( i = nPis; i < nCis; i++ ) - Fsim_ManTerSimInfoSet( pRes, i-nPis, Fsim_ManTerSimInfoGet(pInfo, i) ); - return pRes; -} - -/**Function************************************************************* - - Synopsis [Inserts value into the table.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Fsim_ManTerStatePrint( unsigned * pState, int nRegs ) -{ - int i, Value, nZeros = 0, nOnes = 0, nDcs = 0; - for ( i = 0; i < nRegs; i++ ) - { - Value = (Aig_InfoHasBit( pState, 2 * i + 1 ) << 1) | Aig_InfoHasBit( pState, 2 * i ); - if ( Value == 1 ) - printf( "0" ), nZeros++; - else if ( Value == 2 ) - printf( "1" ), nOnes++; - else if ( Value == 3 ) - printf( "x" ), nDcs++; - else - assert( 0 ); - } - printf( " (0=%5d, 1=%5d, x=%5d)\n", nZeros, nOnes, nDcs ); -} - - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -static inline void Fsim_ManTerSimulateRound( Fsim_Man_t * p ) -{ - int * pCur, * pEnd; - int iCis = 0, iCos = 0; - if ( Aig_ObjRefs(Aig_ManConst1(p->pAig)) ) - Fsim_ManTerSimInfoSet( p->pDataSimCis, 1, FSIM_ONE ); - pCur = p->pDataAig2 + 6; - pEnd = p->pDataAig2 + 3 * p->nObjs; - while ( pCur < pEnd ) - { - if ( pCur[1] == 0 ) - Fsim_ManTerSimulateCi( p, pCur[0], iCis++ ); - else if ( pCur[2] == 0 ) - Fsim_ManTerSimulateCo( p, iCos++, pCur[1] ); - else - Fsim_ManTerSimulateNode( p, pCur[0], pCur[1], pCur[2] ); - pCur += 3; - } - assert( iCis == p->nCis ); - assert( iCos == p->nCos ); -} - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Vec_Ptr_t * Fsim_ManTerSimulate( Aig_Man_t * pAig, int fVerbose ) -{ - Fsim_Man_t * p; - Vec_Ptr_t * vStates; - unsigned ** pBins, * pState; - int i, nWords, nBins, clk, clkTotal = clock(); - assert( Aig_ManRegNum(pAig) > 0 ); - // create manager - clk = clock(); - p = Fsim_ManCreate( pAig ); - if ( fVerbose ) - { - printf( "Obj = %8d (%8d). Cut = %6d. Front = %6d. FrtMem = %7.2f Mb. ", - p->nObjs, p->nCis + p->nNodes, p->nCrossCutMax, p->nFront, - 4.0*Aig_BitWordNum(2 * p->nFront)/(1<<20) ); - ABC_PRT( "Time", clock() - clk ); - } - // create simulation frontier - clk = clock(); - Fsim_ManFront( p, 0 ); - if ( fVerbose ) - { - printf( "Max ID = %8d. Log max ID = %2d. AigMem = %7.2f Mb (%5.2f byte/obj). ", - p->iNumber, Aig_Base2Log(p->iNumber), - 1.0*(p->pDataCur-p->pDataAig)/(1<<20), - 1.0*(p->pDataCur-p->pDataAig)/p->nObjs ); - ABC_PRT( "Time", clock() - clk ); - } - // allocate storage for terminary states - nWords = Aig_BitWordNum( 2*Aig_ManRegNum(pAig) ); - vStates = Vec_PtrAlloc( 1000 ); - nBins = Aig_PrimeCudd( 500 ); - pBins = ABC_ALLOC( unsigned *, nBins ); - memset( pBins, 0, sizeof(unsigned *) * nBins ); - // perform simulation - assert( p->pDataSim == NULL ); - p->pDataSim = ABC_ALLOC( unsigned, Aig_BitWordNum(2 * p->nFront) * sizeof(unsigned) ); - p->pDataSimCis = ABC_ALLOC( unsigned, Aig_BitWordNum(2 * p->nCis) * sizeof(unsigned) ); - p->pDataSimCos = ABC_ALLOC( unsigned, Aig_BitWordNum(2 * p->nCos) * sizeof(unsigned) ); - Fsim_ManTerSimInfoInit( p ); - // hash the first state - pState = Fsim_ManTerStateCreate( p->pDataSimCis, p->nPis, p->nCis, nWords ); - Vec_PtrPush( vStates, pState ); - Fsim_ManTerStateInsert( pState, nWords, pBins, nBins ); - // perform simuluation till convergence - for ( i = 0; ; i++ ) - { - Fsim_ManTerSimulateRound( p ); - Fsim_ManTerSimInfoTransfer( p ); - // hash the first state - pState = Fsim_ManTerStateCreate( p->pDataSimCis, p->nPis, p->nCis, nWords ); - Vec_PtrPush( vStates, pState ); - if ( Fsim_ManTerStateLookup(pState, nWords, pBins, nBins) ) - break; - Fsim_ManTerStateInsert( pState, nWords, pBins, nBins ); - } - if ( fVerbose ) - { - printf( "Maxcut = %8d. AigMem = %7.2f Mb. SimMem = %7.2f Mb. ", - p->nCrossCutMax, - p->pDataAig2? 12.0*p->nObjs/(1<<20) : 1.0*(p->pDataCur-p->pDataAig)/(1<<20), - 4.0*(Aig_BitWordNum(2 * p->nFront)+Aig_BitWordNum(2 * p->nCis)+Aig_BitWordNum(2 * p->nCos))/(1<<20) ); - ABC_PRT( "Sim time", clock() - clkTotal ); - } - ABC_FREE( pBins ); - Fsim_ManDelete( p ); - return vStates; - -} - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - -ABC_NAMESPACE_IMPL_END - |