Abc_Obj_t * Abc_NodeFromMap_rec( Abc_Ntk_t * pNtkNew, Map_Node_t * pNodeMap, int fPhase )
{
Abc_Obj_t * pNodeNew, * pNodeInv;
// check the case of constant node
if ( Map_NodeIsConst(pNodeMap) )
{
pNodeNew = fPhase? Abc_NtkCreateNodeConst1(pNtkNew) : Abc_NtkCreateNodeConst0(pNtkNew);
if ( pNodeNew->pData == NULL )
printf( "Error creating mapped network: Library does not have a constant %d gate.\n", fPhase );
return pNodeNew;
}
// check if the phase is already implemented
pNodeNew = (Abc_Obj_t *)Map_NodeReadData( pNodeMap, fPhase );
if ( pNodeNew )
return pNodeNew;
// implement the node if the best cut is assigned
if ( Map_NodeReadCutBest(pNodeMap, fPhase) != NULL )
return Abc_NodeFromMapPhase_rec( pNtkNew, pNodeMap, fPhase );
// if the cut is not assigned, implement the node
assert( Map_NodeReadCutBest(pNodeMap, !fPhase) != NULL || Map_NodeIsConst(pNodeMap) );
pNodeNew = Abc_NodeFromMapPhase_rec( pNtkNew, pNodeMap, !fPhase );
// add the inverter
pNodeInv = Abc_NtkCreateNode( pNtkNew );
Abc_ObjAddFanin( pNodeInv, pNodeNew );
pNodeInv->pData = Mio_LibraryReadInv((Mio_Library_t *)Abc_FrameReadLibGen());
// set the inverter
Map_NodeSetData( pNodeMap, fPhase, (char *)pNodeInv );
return pNodeInv;
}
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Reads in the supergate library and prepares it for use.]
Description [The supergates library comes in a .super file. This file
contains descriptions of supergates along with some relevant information.
This procedure reads the supergate file, canonicizes the supergates,
and constructs an additional lookup table, which can be used to map
truth tables of the cuts into the pair (phase, supergate). The phase
indicates how the current truth table should be phase assigned to
match the canonical form of the supergate. The resulting phase is the
bitwise EXOR of the phase needed to canonicize the supergate and the
phase needed to transform the truth table into its canonical form.]
SideEffects []
SeeAlso []
***********************************************************************/
Map_SuperLib_t * Map_SuperLibCreate( char * pFileName, char * pExcludeFile, int fAlgorithm, int fVerbose )
{
Map_SuperLib_t * p;
clock_t clk;
// start the supergate library
p = ABC_ALLOC( Map_SuperLib_t, 1 );
memset( p, 0, sizeof(Map_SuperLib_t) );
p->pName = pFileName;
p->fVerbose = fVerbose;
p->mmSupers = Extra_MmFixedStart( sizeof(Map_Super_t) );
p->mmEntries = Extra_MmFixedStart( sizeof(Map_HashEntry_t) );
p->mmForms = Extra_MmFlexStart();
Map_MappingSetupTruthTables( p->uTruths );
// start the hash table
p->tTableC = Map_SuperTableCreate( p );
p->tTable = Map_SuperTableCreate( p );
// read the supergate library from file
clk = clock();
if ( fAlgorithm )
{
if ( !Map_LibraryReadTree( p, pFileName, pExcludeFile ) )
{
Map_SuperLibFree( p );
return NULL;
}
}
else
{
if ( pExcludeFile != 0 )
{
Map_SuperLibFree( p );
printf ("Error: Exclude file support not present for old format. Stop.\n");
return NULL;
}
if ( !Map_LibraryRead( p, pFileName ) )
{
Map_SuperLibFree( p );
return NULL;
}
}
assert( p->nVarsMax > 0 );
// report the stats
if ( fVerbose ) {
printf( "Loaded %d unique %d-input supergates from \"%s\". ",
p->nSupersReal, p->nVarsMax, pFileName );
ABC_PRT( "Time", clock() - clk );
}
// assign the interver parameters
p->pGateInv = Mio_LibraryReadInv( p->pGenlib );
p->tDelayInv.Rise = Mio_LibraryReadDelayInvRise( p->pGenlib );
p->tDelayInv.Fall = Mio_LibraryReadDelayInvFall( p->pGenlib );
p->tDelayInv.Worst = MAP_MAX( p->tDelayInv.Rise, p->tDelayInv.Fall );
p->AreaInv = Mio_LibraryReadAreaInv( p->pGenlib );
p->AreaBuf = Mio_LibraryReadAreaBuf( p->pGenlib );
// assign the interver supergate
p->pSuperInv = (Map_Super_t *)Extra_MmFixedEntryFetch( p->mmSupers );
memset( p->pSuperInv, 0, sizeof(Map_Super_t) );
p->pSuperInv->Num = -1;
p->pSuperInv->nGates = 1;
p->pSuperInv->nFanins = 1;
p->pSuperInv->nFanLimit = 10;
p->pSuperInv->pFanins[0] = p->ppSupers[0];
p->pSuperInv->pRoot = p->pGateInv;
p->pSuperInv->Area = p->AreaInv;
p->pSuperInv->tDelayMax = p->tDelayInv;
p->pSuperInv->tDelaysR[0].Rise = MAP_NO_VAR;
p->pSuperInv->tDelaysR[0].Fall = p->tDelayInv.Rise;
p->pSuperInv->tDelaysF[0].Rise = p->tDelayInv.Fall;
p->pSuperInv->tDelaysF[0].Fall = MAP_NO_VAR;
return p;
}
