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-rw-r--r--src/base/abci/abc.c114
-rw-r--r--src/base/abci/abcDar.c15
-rw-r--r--src/base/abci/abcStrash.c133
3 files changed, 244 insertions, 18 deletions
diff --git a/src/base/abci/abc.c b/src/base/abci/abc.c
index ae1c110f..2c34ed67 100644
--- a/src/base/abci/abc.c
+++ b/src/base/abci/abc.c
@@ -105,6 +105,7 @@ static int Abc_CommandReach ( Abc_Frame_t * pAbc, int argc, char ** arg
static int Abc_CommandCone ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandNode ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandTopmost ( Abc_Frame_t * pAbc, int argc, char ** argv );
+static int Abc_CommandTopAnd ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandTrim ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandShortNames ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandExdcFree ( Abc_Frame_t * pAbc, int argc, char ** argv );
@@ -361,6 +362,7 @@ void Abc_Init( Abc_Frame_t * pAbc )
Cmd_CommandAdd( pAbc, "Various", "cone", Abc_CommandCone, 1 );
Cmd_CommandAdd( pAbc, "Various", "node", Abc_CommandNode, 1 );
Cmd_CommandAdd( pAbc, "Various", "topmost", Abc_CommandTopmost, 1 );
+ Cmd_CommandAdd( pAbc, "Various", "topand", Abc_CommandTopAnd, 1 );
Cmd_CommandAdd( pAbc, "Various", "trim", Abc_CommandTrim, 1 );
Cmd_CommandAdd( pAbc, "Various", "short_names", Abc_CommandShortNames, 0 );
Cmd_CommandAdd( pAbc, "Various", "exdc_free", Abc_CommandExdcFree, 1 );
@@ -6277,6 +6279,91 @@ usage:
Description []
SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+int Abc_CommandTopAnd( Abc_Frame_t * pAbc, int argc, char ** argv )
+{
+ FILE * pOut, * pErr;
+ Abc_Ntk_t * pNtk, * pNtkRes;
+ int c;
+ extern Abc_Ntk_t * Abc_NtkTopAnd( Abc_Ntk_t * pNtk );
+
+ pNtk = Abc_FrameReadNtk(pAbc);
+ pOut = Abc_FrameReadOut(pAbc);
+ pErr = Abc_FrameReadErr(pAbc);
+
+ // set defaults
+ Extra_UtilGetoptReset();
+ while ( ( c = Extra_UtilGetopt( argc, argv, "h" ) ) != EOF )
+ {
+ switch ( c )
+ {
+ case 'h':
+ goto usage;
+ default:
+ goto usage;
+ }
+ }
+
+ if ( pNtk == NULL )
+ {
+ fprintf( pErr, "Empty network.\n" );
+ return 1;
+ }
+
+ if ( !Abc_NtkIsStrash(pNtk) )
+ {
+ fprintf( stdout, "Currently only works for structurally hashed circuits.\n" );
+ return 0;
+ }
+
+ if ( Abc_NtkLatchNum(pNtk) > 0 )
+ {
+ fprintf( stdout, "Currently can only works for combinational circuits.\n" );
+ return 0;
+ }
+ if ( Abc_NtkPoNum(pNtk) != 1 )
+ {
+ fprintf( stdout, "Currently expects a single-output miter.\n" );
+ return 0;
+ }
+ if ( Abc_ObjFaninC0(Abc_NtkPo(pNtk, 0)) )
+ {
+ fprintf( stdout, "The PO driver is complemented. AND-decomposition is impossible.\n" );
+ return 0;
+ }
+ if ( !Abc_ObjIsNode(Abc_ObjChild0(Abc_NtkPo(pNtk, 0))) )
+ {
+ fprintf( stdout, "The PO driver is not a node. AND-decomposition is impossible.\n" );
+ return 0;
+ }
+ pNtkRes = Abc_NtkTopAnd( pNtk );
+ if ( pNtkRes == NULL )
+ {
+ fprintf( pErr, "The command has failed.\n" );
+ return 1;
+ }
+ // replace the current network
+ Abc_FrameReplaceCurrentNetwork( pAbc, pNtkRes );
+ return 0;
+
+usage:
+ fprintf( pErr, "usage: topand [-h]\n" );
+ fprintf( pErr, "\t AND-decomposition of single-output combinational miter\n" );
+ fprintf( pErr, "\t-h : print the command usage\n");
+ fprintf( pErr, "\tname : the node name\n");
+ return 1;
+}
+
+/**Function*************************************************************
+
+ Synopsis []
+
+ Description []
+
+ SideEffects []
SeeAlso []
@@ -13997,7 +14084,7 @@ int Abc_CommandDCec( Abc_Frame_t * pAbc, int argc, char ** argv )
int fPartition;
int fMiter;
- extern int Abc_NtkDSat( Abc_Ntk_t * pNtk, sint64 nConfLimit, sint64 nInsLimit, int fVerbose );
+ extern int Abc_NtkDSat( Abc_Ntk_t * pNtk, sint64 nConfLimit, sint64 nInsLimit, int fFlipBits, int fAndOuts, int fVerbose );
extern int Abc_NtkDarCec( Abc_Ntk_t * pNtk1, Abc_Ntk_t * pNtk2, int fPartition, int fVerbose );
pNtk = Abc_FrameReadNtk(pAbc);
@@ -14097,7 +14184,7 @@ int Abc_CommandDCec( Abc_Frame_t * pAbc, int argc, char ** argv )
// perform equivalence checking
if ( fSat && fMiter )
- Abc_NtkDSat( pNtk1, nConfLimit, nInsLimit, fVerbose );
+ Abc_NtkDSat( pNtk1, nConfLimit, nInsLimit, 0, 0, fVerbose );
else
Abc_NtkDarCec( pNtk1, pNtk2, fPartition, fVerbose );
@@ -14651,12 +14738,14 @@ int Abc_CommandDSat( Abc_Frame_t * pAbc, int argc, char ** argv )
Abc_Ntk_t * pNtk;
int c;
int RetValue;
+ int fFlipBits;
+ int fAndOuts;
int fVerbose;
int nConfLimit;
int nInsLimit;
int clk;
- extern int Abc_NtkDSat( Abc_Ntk_t * pNtk, sint64 nConfLimit, sint64 nInsLimit, int fVerbose );
+ extern int Abc_NtkDSat( Abc_Ntk_t * pNtk, sint64 nConfLimit, sint64 nInsLimit, int fFlipBits, int fAndOuts, int fVerbose );
pNtk = Abc_FrameReadNtk(pAbc);
@@ -14664,11 +14753,13 @@ int Abc_CommandDSat( Abc_Frame_t * pAbc, int argc, char ** argv )
pErr = Abc_FrameReadErr(pAbc);
// set defaults
+ fFlipBits = 0;
+ fAndOuts = 0;
fVerbose = 0;
nConfLimit = 100000;
nInsLimit = 0;
Extra_UtilGetoptReset();
- while ( ( c = Extra_UtilGetopt( argc, argv, "CIvh" ) ) != EOF )
+ while ( ( c = Extra_UtilGetopt( argc, argv, "CIfavh" ) ) != EOF )
{
switch ( c )
{
@@ -14694,6 +14785,12 @@ int Abc_CommandDSat( Abc_Frame_t * pAbc, int argc, char ** argv )
if ( nInsLimit < 0 )
goto usage;
break;
+ case 'f':
+ fFlipBits ^= 1;
+ break;
+ case 'a':
+ fAndOuts ^= 1;
+ break;
case 'v':
fVerbose ^= 1;
break;
@@ -14714,12 +14811,13 @@ int Abc_CommandDSat( Abc_Frame_t * pAbc, int argc, char ** argv )
fprintf( stdout, "Currently can only solve the miter for combinational circuits.\n" );
return 0;
}
+/*
if ( Abc_NtkPoNum(pNtk) != 1 )
{
fprintf( stdout, "Currently expects a single-output miter.\n" );
return 0;
}
-
+*/
if ( !Abc_NtkIsStrash(pNtk) )
{
fprintf( stdout, "Currently only works for structurally hashed circuits.\n" );
@@ -14727,7 +14825,7 @@ int Abc_CommandDSat( Abc_Frame_t * pAbc, int argc, char ** argv )
}
clk = clock();
- RetValue = Abc_NtkDSat( pNtk, (sint64)nConfLimit, (sint64)nInsLimit, fVerbose );
+ RetValue = Abc_NtkDSat( pNtk, (sint64)nConfLimit, (sint64)nInsLimit, fFlipBits, fAndOuts, fVerbose );
// verify that the pattern is correct
if ( RetValue == 0 && Abc_NtkPoNum(pNtk) == 1 )
{
@@ -14760,11 +14858,13 @@ int Abc_CommandDSat( Abc_Frame_t * pAbc, int argc, char ** argv )
return 0;
usage:
- fprintf( pErr, "usage: dsat [-C num] [-I num] [-vh]\n" );
+ fprintf( pErr, "usage: dsat [-C num] [-I num] [-favh]\n" );
fprintf( pErr, "\t solves the combinational miter using SAT solver MiniSat-1.14\n" );
fprintf( pErr, "\t derives CNF from the current network and leave it unchanged\n" );
fprintf( pErr, "\t-C num : limit on the number of conflicts [default = %d]\n", nConfLimit );
fprintf( pErr, "\t-I num : limit on the number of inspections [default = %d]\n", nInsLimit );
+ fprintf( pErr, "\t-f : flip polarity of SAT variables [default = %s]\n", fFlipBits? "yes": "no" );
+ fprintf( pErr, "\t-a : constrain each output of multi-output miter [default = %s]\n", fAndOuts? "yes": "no" );
fprintf( pErr, "\t-v : prints verbose information [default = %s]\n", fVerbose? "yes": "no" );
fprintf( pErr, "\t-h : print the command usage\n");
return 1;
diff --git a/src/base/abci/abcDar.c b/src/base/abci/abcDar.c
index d89ee618..2a234b68 100644
--- a/src/base/abci/abcDar.c
+++ b/src/base/abci/abcDar.c
@@ -932,9 +932,9 @@ Abc_Ntk_t * Abc_NtkConstructFromCnf( Abc_Ntk_t * pNtk, Cnf_Man_t * p, Vec_Ptr_t
***********************************************************************/
Abc_Ntk_t * Abc_NtkDarToCnf( Abc_Ntk_t * pNtk, char * pFileName )
{
- Vec_Ptr_t * vMapped;
+ Vec_Ptr_t * vMapped = NULL;
Aig_Man_t * pMan;
- Cnf_Man_t * pManCnf;
+ Cnf_Man_t * pManCnf = NULL;
Cnf_Dat_t * pCnf;
Abc_Ntk_t * pNtkNew = NULL;
assert( Abc_NtkIsStrash(pNtk) );
@@ -954,13 +954,14 @@ Abc_Ntk_t * Abc_NtkDarToCnf( Abc_Ntk_t * pNtk, char * pFileName )
// derive CNF
pCnf = Cnf_Derive( pMan, 0 );
- pManCnf = Cnf_ManRead();
-
+ Cnf_DataTranformPolarity( pCnf );
+/*
// write the network for verification
+ pManCnf = Cnf_ManRead();
vMapped = Cnf_ManScanMapping( pManCnf, 1, 0 );
pNtkNew = Abc_NtkConstructFromCnf( pNtk, pManCnf, vMapped );
Vec_PtrFree( vMapped );
-
+*/
// write CNF into a file
Cnf_DataWriteIntoFile( pCnf, pFileName, 0 );
Cnf_DataFree( pCnf );
@@ -982,7 +983,7 @@ Abc_Ntk_t * Abc_NtkDarToCnf( Abc_Ntk_t * pNtk, char * pFileName )
SeeAlso []
***********************************************************************/
-int Abc_NtkDSat( Abc_Ntk_t * pNtk, sint64 nConfLimit, sint64 nInsLimit, int fVerbose )
+int Abc_NtkDSat( Abc_Ntk_t * pNtk, sint64 nConfLimit, sint64 nInsLimit, int fFlipBits, int fAndOuts, int fVerbose )
{
Aig_Man_t * pMan;
int RetValue;//, clk = clock();
@@ -990,7 +991,7 @@ int Abc_NtkDSat( Abc_Ntk_t * pNtk, sint64 nConfLimit, sint64 nInsLimit, int fVer
assert( Abc_NtkLatchNum(pNtk) == 0 );
assert( Abc_NtkPoNum(pNtk) == 1 );
pMan = Abc_NtkToDar( pNtk, 0, 0 );
- RetValue = Fra_FraigSat( pMan, nConfLimit, nInsLimit, fVerbose );
+ RetValue = Fra_FraigSat( pMan, nConfLimit, nInsLimit, fFlipBits, fAndOuts, fVerbose );
pNtk->pModel = pMan->pData, pMan->pData = NULL;
Aig_ManStop( pMan );
return RetValue;
diff --git a/src/base/abci/abcStrash.c b/src/base/abci/abcStrash.c
index 084f6a6c..ad09f084 100644
--- a/src/base/abci/abcStrash.c
+++ b/src/base/abci/abcStrash.c
@@ -443,7 +443,7 @@ Abc_Obj_t * Abc_NtkTopmost_rec( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNode, int Leve
Abc_Ntk_t * Abc_NtkTopmost( Abc_Ntk_t * pNtk, int nLevels )
{
Abc_Ntk_t * pNtkNew;
- Abc_Obj_t * pObjNew, * pPoNew;
+ Abc_Obj_t * pObjNew, * pObjPo;
int LevelCut;
assert( Abc_NtkIsStrash(pNtk) );
assert( Abc_NtkCoNum(pNtk) == 1 );
@@ -458,10 +458,10 @@ Abc_Ntk_t * Abc_NtkTopmost( Abc_Ntk_t * pNtk, int nLevels )
pObjNew = Abc_NtkTopmost_rec( pNtkNew, Abc_ObjFanin0(Abc_NtkPo(pNtk, 0)), LevelCut );
pObjNew = Abc_ObjNotCond( pObjNew, Abc_ObjFaninC0(Abc_NtkPo(pNtk, 0)) );
// add the PO node and name
- pPoNew = Abc_NtkCreatePo(pNtkNew);
- Abc_ObjAddFanin( pPoNew, pObjNew );
+ pObjPo = Abc_NtkCreatePo(pNtkNew);
+ Abc_ObjAddFanin( pObjPo, pObjNew );
Abc_NtkAddDummyPiNames( pNtkNew );
- Abc_ObjAssignName( pPoNew, Abc_ObjName(Abc_NtkPo(pNtk, 0)), NULL );
+ Abc_ObjAssignName( pObjPo, Abc_ObjName(Abc_NtkPo(pNtk, 0)), NULL );
// make sure everything is okay
if ( !Abc_NtkCheck( pNtkNew ) )
{
@@ -473,6 +473,131 @@ Abc_Ntk_t * Abc_NtkTopmost( Abc_Ntk_t * pNtk, int nLevels )
}
+
+/**Function*************************************************************
+
+ Synopsis [Comparison procedure for two integers.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+static int Vec_CompareNodeIds( Abc_Obj_t ** pp1, Abc_Obj_t ** pp2 )
+{
+ if ( Abc_ObjRegular(*pp1)->Id < Abc_ObjRegular(*pp2)->Id )
+ return -1;
+ if ( Abc_ObjRegular(*pp1)->Id > Abc_ObjRegular(*pp2)->Id ) //
+ return 1;
+ return 0;
+}
+
+/**Function*************************************************************
+
+ Synopsis [Collects the large supergate.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+Vec_Ptr_t * Abc_NodeGetSuper( Abc_Obj_t * pNode )
+{
+ Vec_Ptr_t * vSuper, * vFront;
+ Abc_Obj_t * pAnd, * pFanin;
+ int i;
+ assert( Abc_ObjIsNode(pNode) && !Abc_ObjIsComplement(pNode) );
+ vSuper = Vec_PtrAlloc( 100 );
+ // explore the frontier
+ vFront = Vec_PtrAlloc( 100 );
+ Vec_PtrPush( vFront, pNode );
+ Vec_PtrForEachEntry( vFront, pAnd, i )
+ {
+ pFanin = Abc_ObjChild0(pAnd);
+ if ( Abc_ObjIsNode(pFanin) && !Abc_ObjIsComplement(pFanin) && Abc_ObjFanoutNum(pFanin) == 1 )
+ Vec_PtrPush( vFront, pFanin );
+ else
+ Vec_PtrPush( vSuper, pFanin );
+
+ pFanin = Abc_ObjChild1(pAnd);
+ if ( Abc_ObjIsNode(pFanin) && !Abc_ObjIsComplement(pFanin) && Abc_ObjFanoutNum(pFanin) == 1 )
+ Vec_PtrPush( vFront, pFanin );
+ else
+ Vec_PtrPush( vSuper, pFanin );
+ }
+ Vec_PtrFree( vFront );
+ // reverse the array of pointers to start with lower IDs
+ vFront = Vec_PtrAlloc( Vec_PtrSize(vSuper) );
+ Vec_PtrForEachEntryReverse( vSuper, pNode, i )
+ Vec_PtrPush( vFront, pNode );
+ Vec_PtrFree( vSuper );
+ vSuper = vFront;
+ // uniquify and return the frontier
+ Vec_PtrUniqify( vSuper, Vec_CompareNodeIds );
+ return vSuper;
+}
+
+/**Function*************************************************************
+
+ Synopsis [Copies the topmost levels of the network.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+Abc_Ntk_t * Abc_NtkTopAnd( Abc_Ntk_t * pNtk )
+{
+ Vec_Ptr_t * vNodes, * vOrder;
+ Abc_Ntk_t * pNtkAig;
+ Abc_Obj_t * pObj, * pDriver, * pObjPo;
+ int i, nNodes;
+ assert( Abc_NtkIsStrash(pNtk) );
+ // get the first PO
+ pObjPo = Abc_NtkPo(pNtk, 0);
+ vNodes = Abc_NodeGetSuper( Abc_ObjChild0(pObjPo) );
+ assert( Vec_PtrSize(vNodes) >= 2 );
+ // start the new network (constants and CIs of the old network will point to the their counterparts in the new network)
+ Abc_NtkCleanCopy( pNtk );
+ pNtkAig = Abc_NtkAlloc( ABC_NTK_STRASH, ABC_FUNC_AIG, 1 );
+ pNtkAig->pName = Extra_UtilStrsav(pNtk->pName);
+ pNtkAig->pSpec = Extra_UtilStrsav(pNtk->pSpec);
+ Abc_AigConst1(pNtk)->pCopy = Abc_AigConst1(pNtkAig);
+ Abc_NtkForEachPi( pNtk, pObj, i )
+ Abc_NtkDupObj( pNtkAig, pObj, 1 );
+ // restrash the nodes reachable from the roots
+ vOrder = Abc_NtkDfsIterNodes( pNtk, vNodes );
+ Vec_PtrForEachEntry( vOrder, pObj, i )
+ pObj->pCopy = Abc_AigAnd( pNtkAig->pManFunc, Abc_ObjChild0Copy(pObj), Abc_ObjChild1Copy(pObj) );
+ Vec_PtrFree( vOrder );
+ // finalize the network
+ Vec_PtrForEachEntry( vNodes, pObj, i )
+ {
+ pObjPo = Abc_NtkCreatePo(pNtkAig);
+ pDriver = Abc_ObjNotCond(Abc_ObjRegular(pObj)->pCopy, Abc_ObjIsComplement(pObj));
+ Abc_ObjAddFanin( pObjPo, pDriver );
+ Abc_ObjAssignName( pObjPo, Abc_ObjName(pObjPo), NULL );
+ }
+ Vec_PtrFree( vNodes );
+ // perform cleanup if requested
+ if ( (nNodes = Abc_AigCleanup(pNtkAig->pManFunc)) )
+ printf( "Abc_NtkTopAnd(): AIG cleanup removed %d nodes (this is a bug).\n", nNodes );
+ // make sure everything is okay
+ if ( !Abc_NtkCheck( pNtkAig ) )
+ {
+ printf( "Abc_NtkStrash: The network check has failed.\n" );
+ Abc_NtkDelete( pNtkAig );
+ return NULL;
+ }
+ return pNtkAig;
+}
+
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 14:45:09 +0000