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Diffstat (limited to 'src/opt/dec/decAbc.c')
| -rw-r--r-- | src/opt/dec/decAbc.c | 305 |
1 files changed, 0 insertions, 305 deletions
diff --git a/src/opt/dec/decAbc.c b/src/opt/dec/decAbc.c deleted file mode 100644 index bd960c14..00000000 --- a/src/opt/dec/decAbc.c +++ /dev/null @@ -1,305 +0,0 @@ -/**CFile**************************************************************** - - FileName [decAbc.c] - - PackageName [MVSIS 2.0: Multi-valued logic synthesis system.] - - Synopsis [Interface between the decomposition package and ABC network.] - - Author [MVSIS Group] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - February 1, 2003.] - - Revision [$Id: decAbc.c,v 1.1 2003/05/22 19:20:05 alanmi Exp $] - -***********************************************************************/ - -#include "abc.h" -#include "dec.h" -#include "ivy.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Transforms the decomposition graph into the AIG.] - - Description [AIG nodes for the fanins should be assigned to pNode->pFunc - of the leaves of the graph before calling this procedure.] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Abc_Obj_t * Dec_GraphToNetwork( Abc_Ntk_t * pNtk, Dec_Graph_t * pGraph ) -{ - Abc_Obj_t * pAnd0, * pAnd1; - Dec_Node_t * pNode; - int i; - // check for constant function - if ( Dec_GraphIsConst(pGraph) ) - return Abc_ObjNotCond( Abc_AigConst1(pNtk), Dec_GraphIsComplement(pGraph) ); - // check for a literal - if ( Dec_GraphIsVar(pGraph) ) - return Abc_ObjNotCond( Dec_GraphVar(pGraph)->pFunc, Dec_GraphIsComplement(pGraph) ); - // build the AIG nodes corresponding to the AND gates of the graph - Dec_GraphForEachNode( pGraph, pNode, i ) - { - pAnd0 = Abc_ObjNotCond( Dec_GraphNode(pGraph, pNode->eEdge0.Node)->pFunc, pNode->eEdge0.fCompl ); - pAnd1 = Abc_ObjNotCond( Dec_GraphNode(pGraph, pNode->eEdge1.Node)->pFunc, pNode->eEdge1.fCompl ); - pNode->pFunc = Abc_AigAnd( pNtk->pManFunc, pAnd0, pAnd1 ); - } - // complement the result if necessary - return Abc_ObjNotCond( pNode->pFunc, Dec_GraphIsComplement(pGraph) ); -} - -/**Function************************************************************* - - Synopsis [Transforms the decomposition graph into the AIG.] - - Description [AIG nodes for the fanins should be assigned to pNode->pFunc - of the leaves of the graph before calling this procedure.] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Abc_Obj_t * Dec_GraphToNetworkNoStrash( Abc_Ntk_t * pNtk, Dec_Graph_t * pGraph ) -{ - Abc_Obj_t * pAnd, * pAnd0, * pAnd1; - Dec_Node_t * pNode; - int i; - // check for constant function - if ( Dec_GraphIsConst(pGraph) ) - return Abc_ObjNotCond( Abc_AigConst1(pNtk), Dec_GraphIsComplement(pGraph) ); - // check for a literal - if ( Dec_GraphIsVar(pGraph) ) - return Abc_ObjNotCond( Dec_GraphVar(pGraph)->pFunc, Dec_GraphIsComplement(pGraph) ); - // build the AIG nodes corresponding to the AND gates of the graph - Dec_GraphForEachNode( pGraph, pNode, i ) - { - pAnd0 = Abc_ObjNotCond( Dec_GraphNode(pGraph, pNode->eEdge0.Node)->pFunc, pNode->eEdge0.fCompl ); - pAnd1 = Abc_ObjNotCond( Dec_GraphNode(pGraph, pNode->eEdge1.Node)->pFunc, pNode->eEdge1.fCompl ); -// pNode->pFunc = Abc_AigAnd( pNtk->pManFunc, pAnd0, pAnd1 ); - pAnd = Abc_NtkCreateNode( pNtk ); - Abc_ObjAddFanin( pAnd, pAnd0 ); - Abc_ObjAddFanin( pAnd, pAnd1 ); - pNode->pFunc = pAnd; - } - // complement the result if necessary - return Abc_ObjNotCond( pNode->pFunc, Dec_GraphIsComplement(pGraph) ); -} - -/**Function************************************************************* - - Synopsis [Counts the number of new nodes added when using this graph.] - - Description [AIG nodes for the fanins should be assigned to pNode->pFunc - of the leaves of the graph before calling this procedure. - Returns -1 if the number of nodes and levels exceeded the given limit or - the number of levels exceeded the maximum allowed level.] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Dec_GraphToNetworkCount( Abc_Obj_t * pRoot, Dec_Graph_t * pGraph, int NodeMax, int LevelMax ) -{ - Abc_Aig_t * pMan = pRoot->pNtk->pManFunc; - Dec_Node_t * pNode, * pNode0, * pNode1; - Abc_Obj_t * pAnd, * pAnd0, * pAnd1; - int i, Counter, LevelNew, LevelOld; - // check for constant function or a literal - if ( Dec_GraphIsConst(pGraph) || Dec_GraphIsVar(pGraph) ) - return 0; - // set the levels of the leaves - Dec_GraphForEachLeaf( pGraph, pNode, i ) - pNode->Level = Abc_ObjRegular(pNode->pFunc)->Level; - // compute the AIG size after adding the internal nodes - Counter = 0; - Dec_GraphForEachNode( pGraph, pNode, i ) - { - // get the children of this node - pNode0 = Dec_GraphNode( pGraph, pNode->eEdge0.Node ); - pNode1 = Dec_GraphNode( pGraph, pNode->eEdge1.Node ); - // get the AIG nodes corresponding to the children - pAnd0 = pNode0->pFunc; - pAnd1 = pNode1->pFunc; - if ( pAnd0 && pAnd1 ) - { - // if they are both present, find the resulting node - pAnd0 = Abc_ObjNotCond( pAnd0, pNode->eEdge0.fCompl ); - pAnd1 = Abc_ObjNotCond( pAnd1, pNode->eEdge1.fCompl ); - pAnd = Abc_AigAndLookup( pMan, pAnd0, pAnd1 ); - // return -1 if the node is the same as the original root - if ( Abc_ObjRegular(pAnd) == pRoot ) - return -1; - } - else - pAnd = NULL; - // count the number of added nodes - if ( pAnd == NULL || Abc_NodeIsTravIdCurrent(Abc_ObjRegular(pAnd)) ) - { - if ( ++Counter > NodeMax ) - return -1; - } - // count the number of new levels - LevelNew = 1 + ABC_MAX( pNode0->Level, pNode1->Level ); - if ( pAnd ) - { - if ( Abc_ObjRegular(pAnd) == Abc_AigConst1(pRoot->pNtk) ) - LevelNew = 0; - else if ( Abc_ObjRegular(pAnd) == Abc_ObjRegular(pAnd0) ) - LevelNew = (int)Abc_ObjRegular(pAnd0)->Level; - else if ( Abc_ObjRegular(pAnd) == Abc_ObjRegular(pAnd1) ) - LevelNew = (int)Abc_ObjRegular(pAnd1)->Level; - LevelOld = (int)Abc_ObjRegular(pAnd)->Level; -// assert( LevelNew == LevelOld ); - } - if ( LevelNew > LevelMax ) - return -1; - pNode->pFunc = pAnd; - pNode->Level = LevelNew; - } - return Counter; -} - - -/**Function************************************************************* - - Synopsis [Replaces MFFC of the node by the new factored form.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Dec_GraphUpdateNetwork( Abc_Obj_t * pRoot, Dec_Graph_t * pGraph, bool fUpdateLevel, int nGain ) -{ - Abc_Obj_t * pRootNew; - Abc_Ntk_t * pNtk = pRoot->pNtk; - int nNodesNew, nNodesOld; - nNodesOld = Abc_NtkNodeNum(pNtk); - // create the new structure of nodes - pRootNew = Dec_GraphToNetwork( pNtk, pGraph ); - // remove the old nodes - Abc_AigReplace( pNtk->pManFunc, pRoot, pRootNew, fUpdateLevel ); - // compare the gains - nNodesNew = Abc_NtkNodeNum(pNtk); - assert( nGain <= nNodesOld - nNodesNew ); -} - - -/**Function************************************************************* - - Synopsis [Transforms the decomposition graph into the AIG.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Hop_Obj_t * Dec_GraphToNetworkAig( Hop_Man_t * pMan, Dec_Graph_t * pGraph ) -{ - Dec_Node_t * pNode; - Hop_Obj_t * pAnd0, * pAnd1; - int i; - // check for constant function - if ( Dec_GraphIsConst(pGraph) ) - return Hop_NotCond( Hop_ManConst1(pMan), Dec_GraphIsComplement(pGraph) ); - // check for a literal - if ( Dec_GraphIsVar(pGraph) ) - return Hop_NotCond( Dec_GraphVar(pGraph)->pFunc, Dec_GraphIsComplement(pGraph) ); - // build the AIG nodes corresponding to the AND gates of the graph - Dec_GraphForEachNode( pGraph, pNode, i ) - { - pAnd0 = Hop_NotCond( Dec_GraphNode(pGraph, pNode->eEdge0.Node)->pFunc, pNode->eEdge0.fCompl ); - pAnd1 = Hop_NotCond( Dec_GraphNode(pGraph, pNode->eEdge1.Node)->pFunc, pNode->eEdge1.fCompl ); - pNode->pFunc = Hop_And( pMan, pAnd0, pAnd1 ); - } - // complement the result if necessary - return Hop_NotCond( pNode->pFunc, Dec_GraphIsComplement(pGraph) ); -} - -/**Function************************************************************* - - Synopsis [Strashes one logic node using its SOP.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Hop_Obj_t * Dec_GraphFactorSop( Hop_Man_t * pMan, char * pSop ) -{ - Hop_Obj_t * pFunc; - Dec_Graph_t * pFForm; - Dec_Node_t * pNode; - int i; - // perform factoring - pFForm = Dec_Factor( pSop ); - // collect the fanins - Dec_GraphForEachLeaf( pFForm, pNode, i ) - pNode->pFunc = Hop_IthVar( pMan, i ); - // perform strashing - pFunc = Dec_GraphToNetworkAig( pMan, pFForm ); - Dec_GraphFree( pFForm ); - return pFunc; -} - -/**Function************************************************************* - - Synopsis [Transforms the decomposition graph into the AIG.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Ivy_Obj_t * Dec_GraphToNetworkIvy( Ivy_Man_t * pMan, Dec_Graph_t * pGraph ) -{ - Dec_Node_t * pNode; - Ivy_Obj_t * pAnd0, * pAnd1; - int i; - // check for constant function - if ( Dec_GraphIsConst(pGraph) ) - return Ivy_NotCond( Ivy_ManConst1(pMan), Dec_GraphIsComplement(pGraph) ); - // check for a literal - if ( Dec_GraphIsVar(pGraph) ) - return Ivy_NotCond( Dec_GraphVar(pGraph)->pFunc, Dec_GraphIsComplement(pGraph) ); - // build the AIG nodes corresponding to the AND gates of the graph - Dec_GraphForEachNode( pGraph, pNode, i ) - { - pAnd0 = Ivy_NotCond( Dec_GraphNode(pGraph, pNode->eEdge0.Node)->pFunc, pNode->eEdge0.fCompl ); - pAnd1 = Ivy_NotCond( Dec_GraphNode(pGraph, pNode->eEdge1.Node)->pFunc, pNode->eEdge1.fCompl ); - pNode->pFunc = Ivy_And( pMan, pAnd0, pAnd1 ); - } - // complement the result if necessary - return Ivy_NotCond( pNode->pFunc, Dec_GraphIsComplement(pGraph) ); -} - - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - |