diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/base/abc/abcUtil.c | 74 | ||||
| -rw-r--r-- | src/base/abci/abc.c | 78 |
2 files changed, 152 insertions, 0 deletions
diff --git a/src/base/abc/abcUtil.c b/src/base/abc/abcUtil.c index b3b37da0..faf224dd 100644 --- a/src/base/abc/abcUtil.c +++ b/src/base/abc/abcUtil.c @@ -2704,6 +2704,80 @@ void Abc_NtkFromPlaTest() SeeAlso [] ***********************************************************************/ +Abc_Ntk_t * Abc_NtkSplitSop( Abc_Ntk_t * pNtk, int nCubesMax, int fVerbose ) +{ + Vec_Ptr_t * vNodes; + Abc_Ntk_t * pNtkNew; + Abc_Obj_t * pObj, * pFanin, * pObjNew, * pObjNewRoot; + int i, k, j, nCubes, nCubesThis, nSplits; + char * pSopStr, * pSopStr2, * pTempSop, Symb; + if ( pNtk == NULL ) + return NULL; + assert( !Abc_NtkIsStrash(pNtk) && !Abc_NtkIsNetlist(pNtk) ); + // start the network + pNtkNew = Abc_NtkStartFrom( pNtk, pNtk->ntkType, pNtk->ntkFunc ); + // copy the internal nodes + vNodes = Abc_NtkDfs( pNtk, 0 ); + Vec_PtrForEachEntry( Abc_Obj_t *, vNodes, pObj, i ) + { + assert( Abc_ObjIsNode(pObj) ); + pObjNewRoot = Abc_NtkDupObj( pNtkNew, pObj, 0 ); + nCubes = Abc_SopGetCubeNum( (char *)pObj->pData ); + if ( nCubes <= nCubesMax ) + { + Abc_ObjForEachFanin( pObj, pFanin, k ) + Abc_ObjAddFanin( pObj->pCopy, pFanin->pCopy ); + continue; + } + nSplits = (nCubes / nCubesMax) + (int)(nCubes % nCubesMax > 0); + pSopStr = ((char *)pObjNewRoot->pData); + pObjNewRoot->pData = Abc_SopCreateOr(pNtkNew->pManFunc, nSplits, NULL); + if ( Abc_SopIsComplement(pSopStr) ) + { + Abc_SopComplement( pSopStr ); + Abc_SopComplement( (char *)pObjNewRoot->pData ); + } + pTempSop = pObj->pData; pObj->pData = "?"; + for ( j = 0; j < nSplits; j++ ) + { + // clone the node + pObjNew = Abc_NtkDupObj( pNtkNew, pObj, 0 ); + Abc_ObjAddFanin( pObjNewRoot, pObjNew ); + // get its cubes + Abc_ObjForEachFanin( pObj, pFanin, k ) + Abc_ObjAddFanin( pObj->pCopy, pFanin->pCopy ); + // create SOP for this node + nCubesThis = (j < nCubes / nCubesMax) ? nCubesMax : nCubes % nCubesMax; + pSopStr2 = pSopStr + (Abc_ObjFaninNum(pObj) + 3) * nCubesThis; + Symb = *pSopStr2; *pSopStr2 = 0; + pObjNew->pData = Abc_SopRegister( pNtkNew->pManFunc, pSopStr ); + *pSopStr2 = Symb; + pSopStr = pSopStr2; + } + // update + pObj->pData = pTempSop; + pObj->pCopy = pObjNewRoot; + } + Vec_PtrFree( vNodes ); + Abc_NtkFinalize( pNtk, pNtkNew ); + // check correctness + if ( !Abc_NtkCheck( pNtkNew ) ) + fprintf( stdout, "Abc_NtkDup(): Network check has failed.\n" ); + pNtk->pCopy = pNtkNew; + return pNtkNew; +} + +/**Function************************************************************* + + Synopsis [Checks if the logic network is in the topological order.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ int Abc_NtkIsTopo( Abc_Ntk_t * pNtk ) { Abc_Obj_t * pObj, * pFanin; diff --git a/src/base/abci/abc.c b/src/base/abci/abc.c index b9be4a18..3804756a 100644 --- a/src/base/abci/abc.c +++ b/src/base/abci/abc.c @@ -148,6 +148,7 @@ static int Abc_CommandBidec ( Abc_Frame_t * pAbc, int argc, cha static int Abc_CommandOrder ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandMuxes ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandCubes ( Abc_Frame_t * pAbc, int argc, char ** argv ); +static int Abc_CommandSplitSop ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandExtSeqDcs ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandReach ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandCone ( Abc_Frame_t * pAbc, int argc, char ** argv ); @@ -718,6 +719,7 @@ void Abc_Init( Abc_Frame_t * pAbc ) Cmd_CommandAdd( pAbc, "Various", "order", Abc_CommandOrder, 0 ); Cmd_CommandAdd( pAbc, "Various", "muxes", Abc_CommandMuxes, 1 ); Cmd_CommandAdd( pAbc, "Various", "cubes", Abc_CommandCubes, 1 ); + Cmd_CommandAdd( pAbc, "Various", "splitsop", Abc_CommandSplitSop, 1 ); Cmd_CommandAdd( pAbc, "Various", "ext_seq_dcs", Abc_CommandExtSeqDcs, 0 ); Cmd_CommandAdd( pAbc, "Various", "reach", Abc_CommandReach, 0 ); Cmd_CommandAdd( pAbc, "Various", "cone", Abc_CommandCone, 1 ); @@ -8036,6 +8038,82 @@ usage: return 1; } +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Abc_CommandSplitSop( Abc_Frame_t * pAbc, int argc, char ** argv ) +{ + extern Abc_Ntk_t * Abc_NtkSplitSop( Abc_Ntk_t * pNtk, int nCubesMax, int fVerbose ); + Abc_Ntk_t * pNtk, * pNtkRes; + int c, fVerbose = 0, nCubesMax = 100; + pNtk = Abc_FrameReadNtk(pAbc); + // set defaults + Extra_UtilGetoptReset(); + while ( ( c = Extra_UtilGetopt( argc, argv, "Nvh" ) ) != EOF ) + { + switch ( c ) + { + case 'N': + if ( globalUtilOptind >= argc ) + { + Abc_Print( -1, "Command line switch \"-N\" should be followed by an integer.\n" ); + goto usage; + } + nCubesMax = atoi(argv[globalUtilOptind]); + globalUtilOptind++; + if ( nCubesMax < 0 ) + goto usage; + break; + case 'v': + fVerbose ^= 1; + break; + case 'h': + goto usage; + default: + goto usage; + } + } + + if ( pNtk == NULL ) + { + Abc_Print( -1, "Empty network.\n" ); + return 1; + } + + if ( !Abc_NtkIsSopLogic(pNtk) ) + { + Abc_Print( -1, "Only a SOP logic network can be transformed into cubes.\n" ); + return 1; + } + + // get the new network + pNtkRes = Abc_NtkSplitSop( pNtk, nCubesMax, fVerbose ); + if ( pNtkRes == NULL ) + { + Abc_Print( -1, "Converting to cubes has failed.\n" ); + return 1; + } + // replace the current network + Abc_FrameReplaceCurrentNetwork( pAbc, pNtkRes ); + return 0; + +usage: + Abc_Print( -2, "usage: splitsop [-N num] [-vh]\n" ); + Abc_Print( -2, "\t splits nodes whose SOP size is larger than the given one\n" ); + Abc_Print( -2, "\t-N num : the maximum number of cubes after splitting [default = %d]\n", nCubesMax ); + Abc_Print( -2, "\t-v : prints verbose information [default = %s]\n", fVerbose? "yes": "no" ); + Abc_Print( -2, "\t-h : print the command usage\n"); + return 1; +} + /**Function************************************************************* |