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Diffstat (limited to 'src/opt/bdc/bdcCore.c')
| -rw-r--r-- | src/opt/bdc/bdcCore.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/src/opt/bdc/bdcCore.c b/src/opt/bdc/bdcCore.c deleted file mode 100644 index 157927b1..00000000 --- a/src/opt/bdc/bdcCore.c +++ /dev/null @@ -1,189 +0,0 @@ -/**CFile**************************************************************** - - FileName [bdcCore.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [Truth-table-based bi-decomposition engine.] - - Synopsis [The gateway to bi-decomposition.] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - January 30, 2007.] - - Revision [$Id: bdcCore.c,v 1.00 2007/01/30 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "bdcInt.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Allocate resynthesis manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Bdc_Man_t * Bdc_ManAlloc( Bdc_Par_t * pPars ) -{ - Bdc_Man_t * p; - unsigned * pData; - int i, k, nBits; - p = ALLOC( Bdc_Man_t, 1 ); - memset( p, 0, sizeof(Bdc_Man_t) ); - assert( pPars->nVarsMax > 3 && pPars->nVarsMax < 16 ); - p->pPars = pPars; - p->nWords = Kit_TruthWordNum( pPars->nVarsMax ); - p->nDivsLimit = 200; - p->nNodesLimit = 0; // will be set later - // memory - p->vMemory = Vec_IntStart( 1 << 16 ); - // internal nodes - p->nNodesAlloc = 512; - p->pNodes = ALLOC( Bdc_Fun_t, p->nNodesAlloc ); - // set up hash table - p->nTableSize = (1 << p->pPars->nVarsMax); - p->pTable = ALLOC( Bdc_Fun_t *, p->nTableSize ); - memset( p->pTable, 0, sizeof(Bdc_Fun_t *) * p->nTableSize ); - p->vSpots = Vec_IntAlloc( 256 ); - // truth tables - p->vTruths = Vec_PtrAllocSimInfo( pPars->nVarsMax + 5, p->nWords ); - // set elementary truth tables - nBits = (1 << pPars->nVarsMax); - Kit_TruthFill( Vec_PtrEntry(p->vTruths, 0), p->nVars ); - for ( k = 0; k < pPars->nVarsMax; k++ ) - { - pData = Vec_PtrEntry( p->vTruths, k+1 ); - Kit_TruthClear( pData, p->nVars ); - for ( i = 0; i < nBits; i++ ) - if ( i & (1 << k) ) - pData[i>>5] |= (1 << (i&31)); - } - p->puTemp1 = Vec_PtrEntry( p->vTruths, pPars->nVarsMax + 1 ); - p->puTemp2 = Vec_PtrEntry( p->vTruths, pPars->nVarsMax + 2 ); - p->puTemp3 = Vec_PtrEntry( p->vTruths, pPars->nVarsMax + 3 ); - p->puTemp4 = Vec_PtrEntry( p->vTruths, pPars->nVarsMax + 4 ); - // start the internal ISFs - p->pIsfOL = &p->IsfOL; Bdc_IsfStart( p, p->pIsfOL ); - p->pIsfOR = &p->IsfOR; Bdc_IsfStart( p, p->pIsfOR ); - p->pIsfAL = &p->IsfAL; Bdc_IsfStart( p, p->pIsfAL ); - p->pIsfAR = &p->IsfAR; Bdc_IsfStart( p, p->pIsfAR ); - return p; -} - -/**Function************************************************************* - - Synopsis [Deallocate resynthesis manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Bdc_ManFree( Bdc_Man_t * p ) -{ - Vec_IntFree( p->vMemory ); - Vec_IntFree( p->vSpots ); - Vec_PtrFree( p->vTruths ); - free( p->pNodes ); - free( p->pTable ); - free( p ); -} - -/**Function************************************************************* - - Synopsis [Clears the manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Bdc_ManPrepare( Bdc_Man_t * p, Vec_Ptr_t * vDivs ) -{ - unsigned * puTruth; - Bdc_Fun_t * pNode; - int i; - Bdc_TableClear( p ); - Vec_IntClear( p->vMemory ); - // add constant 1 and elementary vars - p->nNodes = p->nNodesNew = 0; - for ( i = 0; i <= p->pPars->nVarsMax; i++ ) - { - pNode = Bdc_FunNew( p ); - pNode->Type = BDC_TYPE_PI; - pNode->puFunc = Vec_PtrEntry( p->vTruths, i ); - pNode->uSupp = i? (1 << (i-1)) : 0; - Bdc_TableAdd( p, pNode ); - } - // add the divisors - Vec_PtrForEachEntry( vDivs, puTruth, i ) - { - pNode = Bdc_FunNew( p ); - pNode->Type = BDC_TYPE_PI; - pNode->puFunc = puTruth; - pNode->uSupp = Kit_TruthSupport( puTruth, p->nVars ); - Bdc_TableAdd( p, pNode ); - if ( i == p->nDivsLimit ) - break; - } -} - -/**Function************************************************************* - - Synopsis [Performs decomposition of one function.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Bdc_ManDecompose( Bdc_Man_t * p, unsigned * puFunc, unsigned * puCare, int nVars, Vec_Ptr_t * vDivs, int nNodesMax ) -{ - Bdc_Isf_t Isf, * pIsf = &Isf; - // set current manager parameters - p->nVars = nVars; - p->nWords = Kit_TruthWordNum( nVars ); - Bdc_ManPrepare( p, vDivs ); - p->nNodesLimit = (p->nNodes + nNodesMax < p->nNodesAlloc)? p->nNodes + nNodesMax : p->nNodesAlloc; - // copy the function - Bdc_IsfStart( p, pIsf ); - Bdc_IsfClean( pIsf ); - pIsf->uSupp = Kit_TruthSupport( puFunc, p->nVars ) | Kit_TruthSupport( puCare, p->nVars ); - Kit_TruthAnd( pIsf->puOn, puCare, puFunc, p->nVars ); - Kit_TruthSharp( pIsf->puOff, puCare, puFunc, p->nVars ); - // call decomposition - Bdc_SuppMinimize( p, pIsf ); - p->pRoot = Bdc_ManDecompose_rec( p, pIsf ); - if ( p->pRoot == NULL ) - return -1; - return p->nNodesNew; -} - - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - |