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-rw-r--r--src/aig/gia/giaMfs.c110
1 files changed, 79 insertions, 31 deletions
diff --git a/src/aig/gia/giaMfs.c b/src/aig/gia/giaMfs.c
index ca5d4038..e5dfb788 100644
--- a/src/aig/gia/giaMfs.c
+++ b/src/aig/gia/giaMfs.c
@@ -65,10 +65,13 @@ Sfm_Ntk_t * Gia_ManExtractMfs( Gia_Man_t * p )
int nRealPis = nBoxes ? Tim_ManPiNum(pManTime) : Gia_ManPiNum(p);
int nRealPos = nBoxes ? Tim_ManPoNum(pManTime) : Gia_ManPoNum(p);
int i, j, k, curCi, curCo, nBoxIns, nBoxOuts;
- int Id, iFan, nMfsVars, Counter = 0;
+ int Id, iFan, nMfsVars, nBbIns = 0, nBbOuts = 0, Counter = 0;
assert( !p->pAigExtra || Gia_ManPiNum(p->pAigExtra) <= 6 );
+ Tim_ManBlackBoxIoNum( pManTime, &nBbIns, &nBbOuts );
+ // skip PIs due to box outputs
+ Counter += nBbOuts;
// prepare storage
- nMfsVars = Gia_ManCiNum(p) + 1 + Gia_ManLutNum(p) + Gia_ManCoNum(p);
+ nMfsVars = Gia_ManCiNum(p) + 1 + Gia_ManLutNum(p) + Gia_ManCoNum(p) + nBbIns + nBbOuts;
vFanins = Vec_WecStart( nMfsVars );
vFixed = Vec_StrStart( nMfsVars );
vEmpty = Vec_StrStart( nMfsVars );
@@ -118,16 +121,18 @@ Sfm_Ntk_t * Gia_ManExtractMfs( Gia_Man_t * p )
}
Gia_ObjSetCopyArray( p, Gia_ObjId(p, pObj), Counter++ );
}
+ // skip POs due to box inputs
+ Counter += nBbIns;
assert( Counter == nMfsVars );
// add functions of the boxes
if ( p->pAigExtra )
{
+ int iBbIn = 0, iBbOut = 0;
Gia_ObjComputeTruthTableStart( p->pAigExtra, 6 );
curCi = nRealPis;
curCo = 0;
for ( k = 0; k < nBoxes; k++ )
{
- assert( !Tim_ManBoxIsBlack(pManTime, k) );
nBoxIns = Tim_ManBoxInputNum( pManTime, k );
nBoxOuts = Tim_ManBoxOutputNum( pManTime, k );
// collect truth table leaves
@@ -135,34 +140,62 @@ Sfm_Ntk_t * Gia_ManExtractMfs( Gia_Man_t * p )
for ( i = 0; i < nBoxIns; i++ )
Vec_IntPush( vLeaves, Gia_ObjId(p->pAigExtra, Gia_ManCi(p->pAigExtra, i)) );
// iterate through box outputs
- //printf( "Box %d:\n", k );
- for ( j = 0; j < nBoxOuts; j++ )
+ if ( !Tim_ManBoxIsBlack(pManTime, k) )
{
- // CI corresponding to the box outputs
- pObj = Gia_ManCi( p, curCi + j );
- Counter = Gia_ObjCopyArray( p, Gia_ObjId(p, pObj) );
- // box output in the extra manager
- pObjExtra = Gia_ManCo( p->pAigExtra, curCi - nRealPis + j );
- // compute truth table
- if ( Gia_ObjFaninId0p(p->pAigExtra, pObjExtra) == 0 )
- uTruth = 0;
- else if ( Gia_ObjIsCi(Gia_ObjFanin0(pObjExtra)) )
- uTruth = uTruths6[Gia_ObjCioId(Gia_ObjFanin0(pObjExtra))];
- else
- uTruth = *Gia_ObjComputeTruthTableCut( p->pAigExtra, Gia_ObjFanin0(pObjExtra), vLeaves );
- uTruth = Gia_ObjFaninC0(pObjExtra) ? ~uTruth : uTruth;
- Vec_WrdWriteEntry( vTruths, Counter, uTruth );
- //Dau_DsdPrintFromTruth( &uTruth, Vec_IntSize(vLeaves) );
- // add box inputs (POs of the AIG) as fanins
- vArray = Vec_WecEntry( vFanins, Counter );
- Vec_IntGrow( vArray, nBoxIns );
+ for ( j = 0; j < nBoxOuts; j++ )
+ {
+ // CI corresponding to the box outputs
+ pObj = Gia_ManCi( p, curCi + j );
+ Counter = Gia_ObjCopyArray( p, Gia_ObjId(p, pObj) );
+ // box output in the extra manager
+ pObjExtra = Gia_ManCo( p->pAigExtra, curCi - nRealPis + j );
+ // compute truth table
+ if ( Gia_ObjFaninId0p(p->pAigExtra, pObjExtra) == 0 )
+ uTruth = 0;
+ else if ( Gia_ObjIsCi(Gia_ObjFanin0(pObjExtra)) )
+ uTruth = uTruths6[Gia_ObjCioId(Gia_ObjFanin0(pObjExtra))];
+ else
+ uTruth = *Gia_ObjComputeTruthTableCut( p->pAigExtra, Gia_ObjFanin0(pObjExtra), vLeaves );
+ uTruth = Gia_ObjFaninC0(pObjExtra) ? ~uTruth : uTruth;
+ Vec_WrdWriteEntry( vTruths, Counter, uTruth );
+ //Dau_DsdPrintFromTruth( &uTruth, Vec_IntSize(vLeaves) );
+ // add box inputs (POs of the AIG) as fanins
+ vArray = Vec_WecEntry( vFanins, Counter );
+ Vec_IntGrow( vArray, nBoxIns );
+ for ( i = 0; i < nBoxIns; i++ )
+ {
+ iFan = Gia_ObjId( p, Gia_ManCo(p, curCo + i) );
+ assert( Gia_ObjCopyArray(p, iFan) >= 0 );
+ Vec_IntPush( vArray, Gia_ObjCopyArray(p, iFan) );
+ }
+ Vec_StrWriteEntry( vFixed, Counter, (char)1 );
+ }
+ }
+ else // create buffers for black box inputs and outputs
+ {
+ for ( j = 0; j < nBoxOuts; j++ )
+ {
+ // CI corresponding to the box outputs
+ pObj = Gia_ManCi( p, curCi + j );
+ Counter = Gia_ObjCopyArray( p, Gia_ObjId(p, pObj) );
+ // connect it with the special primary input (iBbOut)
+ vArray = Vec_WecEntry( vFanins, Counter );
+ assert( Vec_IntSize(vArray) == 0 );
+ Vec_IntFill( vArray, 1, iBbOut++ );
+ Vec_StrWriteEntry( vFixed, Counter, (char)1 );
+ Vec_StrWriteEntry( vEmpty, Counter, (char)1 );
+ Vec_WrdWriteEntry( vTruths, Counter, uTruths6[0] );
+ }
for ( i = 0; i < nBoxIns; i++ )
{
- iFan = Gia_ObjId( p, Gia_ManCo(p, curCo + i) );
- assert( Gia_ObjCopyArray(p, iFan) >= 0 );
- Vec_IntPush( vArray, Gia_ObjCopyArray(p, iFan) );
+ // CO corresponding to the box inputs
+ pObj = Gia_ManCo( p, curCo + i );
+ Counter = Gia_ObjCopyArray( p, Gia_ObjId(p, pObj) );
+ // connect it with the special primary output (iBbIn)
+ vArray = Vec_WecEntry( vFanins, nMfsVars - nBbIns + iBbIn++ );
+ assert( Vec_IntSize(vArray) == 0 );
+ Vec_IntFill( vArray, 1, Counter );
}
- Vec_StrWriteEntry( vFixed, Counter, (char)1 );
}
// set internal POs pointing directly to internal PIs as no-delay
for ( i = 0; i < nBoxIns; i++ )
@@ -182,10 +215,12 @@ Sfm_Ntk_t * Gia_ManExtractMfs( Gia_Man_t * p )
assert( curCi == Gia_ManCiNum(p) );
assert( curCo == Gia_ManCoNum(p) );
assert( curCi - nRealPis == Gia_ManCoNum(p->pAigExtra) );
+ assert( iBbIn == nBbIns );
+ assert( iBbOut == nBbOuts );
}
// finalize
Vec_IntFree( vLeaves );
- return Sfm_NtkConstruct( vFanins, nRealPis, nRealPos, vFixed, vEmpty, vTruths );
+ return Sfm_NtkConstruct( vFanins, nBbOuts + nRealPis, nRealPos + nBbIns, vFixed, vEmpty, vTruths );
}
/**Function*************************************************************
@@ -208,14 +243,19 @@ Gia_Man_t * Gia_ManInsertMfs( Gia_Man_t * p, Sfm_Ntk_t * pNtk )
int nRealPis = nBoxes ? Tim_ManPiNum(pManTime) : Gia_ManPiNum(p);
int nRealPos = nBoxes ? Tim_ManPoNum(pManTime) : Gia_ManPoNum(p);
int i, k, Id, curCi, curCo, nBoxIns, nBoxOuts, iLitNew, iMfsId, iGroup, Fanin;
- int nMfsNodes = 1 + Gia_ManCiNum(p) + Gia_ManLutNum(p) + Gia_ManCoNum(p);
+ int nMfsNodes;
word * pTruth, uTruthVar = ABC_CONST(0xAAAAAAAAAAAAAAAA);
Vec_Wec_t * vGroups = Vec_WecStart( nBoxes );
- Vec_Int_t * vMfs2Gia = Vec_IntStartFull( nMfsNodes );
- Vec_Int_t * vGroupMap = Vec_IntStartFull( nMfsNodes );
+ Vec_Int_t * vMfs2Gia;
+ Vec_Int_t * vGroupMap;
Vec_Int_t * vMfsTopo, * vCover, * vBoxesLeft;
Vec_Int_t * vArray, * vLeaves;
Vec_Int_t * vMapping, * vMapping2;
+ int nBbIns = 0, nBbOuts = 0;
+ Tim_ManBlackBoxIoNum( pManTime, &nBbIns, &nBbOuts );
+ nMfsNodes = 1 + Gia_ManCiNum(p) + Gia_ManLutNum(p) + Gia_ManCoNum(p) + nBbIns + nBbOuts;
+ vMfs2Gia = Vec_IntStartFull( nMfsNodes );
+ vGroupMap = Vec_IntStartFull( nMfsNodes );
// collect nodes
curCi = nRealPis;
curCo = 0;
@@ -280,6 +320,14 @@ Gia_Man_t * Gia_ManInsertMfs( Gia_Man_t * p, Sfm_Ntk_t * pNtk )
pTruth = Sfm_NodeReadTruth( pNtk, iMfsId );
iGroup = Vec_IntEntry( vGroupMap, iMfsId );
vArray = Sfm_NodeReadFanins( pNtk, iMfsId ); // belongs to pNtk
+ if ( Vec_IntSize(vArray) == 1 && Vec_IntEntry(vArray,0) < nBbOuts ) // skip unreal inputs
+ {
+ // create CI for the output of black box
+ assert( Abc_LitIsCompl(iGroup) );
+ iLitNew = Gia_ManAppendCi( pNew );
+ Vec_IntWriteEntry( vMfs2Gia, iMfsId, iLitNew );
+ continue;
+ }
Vec_IntClear( vLeaves );
Vec_IntForEachEntry( vArray, Fanin, k )
{
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