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Diffstat (limited to 'abc70930/src/aig/rwt/rwtDec.c')
| -rw-r--r-- | abc70930/src/aig/rwt/rwtDec.c | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/abc70930/src/aig/rwt/rwtDec.c b/abc70930/src/aig/rwt/rwtDec.c deleted file mode 100644 index 98019629..00000000 --- a/abc70930/src/aig/rwt/rwtDec.c +++ /dev/null @@ -1,150 +0,0 @@ -/**CFile**************************************************************** - - FileName [rwtDec.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [DAG-aware AIG rewriting package.] - - Synopsis [Evaluation and decomposition procedures.] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - June 20, 2005.] - - Revision [$Id: rwtDec.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "rwt.h" -#include "deco.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -static Dec_Graph_t * Rwt_NodePreprocess( Rwt_Man_t * p, Rwt_Node_t * pNode ); -static Dec_Edge_t Rwt_TravCollect_rec( Rwt_Man_t * p, Rwt_Node_t * pNode, Dec_Graph_t * pGraph ); - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Preprocesses computed library of subgraphs.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwt_ManPreprocess( Rwt_Man_t * p ) -{ - Dec_Graph_t * pGraph; - Rwt_Node_t * pNode; - int i, k; - // put the nodes into the structure - p->pMapInv = ALLOC( unsigned short, 222 ); - memset( p->pMapInv, 0, sizeof(unsigned short) * 222 ); - p->vClasses = Vec_VecStart( 222 ); - for ( i = 0; i < p->nFuncs; i++ ) - { - if ( p->pTable[i] == NULL ) - continue; - // consider all implementations of this function - for ( pNode = p->pTable[i]; pNode; pNode = pNode->pNext ) - { - assert( pNode->uTruth == p->pTable[i]->uTruth ); - assert( p->pMap[pNode->uTruth] >= 0 && p->pMap[pNode->uTruth] < 222 ); - Vec_VecPush( p->vClasses, p->pMap[pNode->uTruth], pNode ); - p->pMapInv[ p->pMap[pNode->uTruth] ] = p->puCanons[pNode->uTruth]; - } - } - // compute decomposition forms for each node and verify them - Vec_VecForEachEntry( p->vClasses, pNode, i, k ) - { - pGraph = Rwt_NodePreprocess( p, pNode ); - pNode->pNext = (Rwt_Node_t *)pGraph; -// assert( pNode->uTruth == (Dec_GraphDeriveTruth(pGraph) & 0xFFFF) ); - } -} - -/**Function************************************************************* - - Synopsis [Preprocesses subgraphs rooted at this node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Dec_Graph_t * Rwt_NodePreprocess( Rwt_Man_t * p, Rwt_Node_t * pNode ) -{ - Dec_Graph_t * pGraph; - Dec_Edge_t eRoot; - assert( !Rwt_IsComplement(pNode) ); - // consider constant - if ( pNode->uTruth == 0 ) - return Dec_GraphCreateConst0(); - // consider the case of elementary var - if ( pNode->uTruth == 0x00FF ) - return Dec_GraphCreateLeaf( 3, 4, 1 ); - // start the subgraphs - pGraph = Dec_GraphCreate( 4 ); - // collect the nodes - Rwt_ManIncTravId( p ); - eRoot = Rwt_TravCollect_rec( p, pNode, pGraph ); - Dec_GraphSetRoot( pGraph, eRoot ); - return pGraph; -} - -/**Function************************************************************* - - Synopsis [Adds one node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Dec_Edge_t Rwt_TravCollect_rec( Rwt_Man_t * p, Rwt_Node_t * pNode, Dec_Graph_t * pGraph ) -{ - Dec_Edge_t eNode0, eNode1, eNode; - // elementary variable - if ( pNode->fUsed ) - return Dec_EdgeCreate( pNode->Id - 1, 0 ); - // previously visited node - if ( pNode->TravId == p->nTravIds ) - return Dec_IntToEdge( pNode->Volume ); - pNode->TravId = p->nTravIds; - // solve for children - eNode0 = Rwt_TravCollect_rec( p, Rwt_Regular(pNode->p0), pGraph ); - if ( Rwt_IsComplement(pNode->p0) ) - eNode0.fCompl = !eNode0.fCompl; - eNode1 = Rwt_TravCollect_rec( p, Rwt_Regular(pNode->p1), pGraph ); - if ( Rwt_IsComplement(pNode->p1) ) - eNode1.fCompl = !eNode1.fCompl; - // create the decomposition node(s) - if ( pNode->fExor ) - eNode = Dec_GraphAddNodeXor( pGraph, eNode0, eNode1, 0 ); - else - eNode = Dec_GraphAddNodeAnd( pGraph, eNode0, eNode1 ); - // save the result - pNode->Volume = Dec_EdgeToInt( eNode ); - return eNode; -} - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - |