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abc
Commit f2b6b3be by Alan Mishchenko
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Version abc50813

parent 80983617
Showing with 505 additions and 27 deletions
abc.dsp
......@@ -197,6 +197,14 @@ SOURCE=.\src\base\abc\abcSat.c
# End Source File
# Begin Source File
SOURCE=.\src\base\abc\abcSeq.c
# End Source File
# Begin Source File
SOURCE=.\src\base\abc\abcSeqRetime.c
# End Source File
# Begin Source File
SOURCE=.\src\base\abc\abcShow.c
# End Source File
# Begin Source File
......
abc.opt
No preview for this file type
abc.plg
......@@ -6,13 +6,13 @@
--------------------Configuration: abc - Win32 Debug--------------------
</h3>
<h3>Command Lines</h3>
Creating temporary file "C:\DOCUME~1\alanmi\LOCALS~1\Temp\RSP4DC.tmp" with contents
Creating temporary file "C:\DOCUME~1\alanmi\LOCALS~1\Temp\RSP60E.tmp" with contents
[
/nologo /MLd /W3 /Gm /GX /ZI /Od /I "src\base\abc" /I "src\base\cmd" /I "src\base\io" /I "src\base\main" /I "src\bdd\cudd" /I "src\bdd\epd" /I "src\bdd\mtr" /I "src\bdd\parse" /I "src\bdd\dsd" /I "src\bdd\reo" /I "src\sop\mvc" /I "src\sop\ft" /I "src\sat\asat" /I "src\sat\msat" /I "src\sat\fraig" /I "src\opt\fxa" /I "src\opt\fxu" /I "src\map\fpga" /I "src\map\mapper" /I "src\map\mio" /I "src\map\super" /I "src\misc\extra" /I "src\misc\st" /I "src\misc\util" /I "src\misc\vec" /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /D "__STDC__" /D "HAVE_ASSERT_H" /FR"Debug/" /Fp"Debug/abc.pch" /YX /Fo"Debug/" /Fd"Debug/" /FD /GZ /c
"C:\_projects\abc\src\base\abc\abcMap.c"
"C:\_projects\abc\src\base\abc\abc.c"
]
Creating command line "cl.exe @C:\DOCUME~1\alanmi\LOCALS~1\Temp\RSP4DC.tmp"
Creating temporary file "C:\DOCUME~1\alanmi\LOCALS~1\Temp\RSP4DD.tmp" with contents
Creating command line "cl.exe @C:\DOCUME~1\alanmi\LOCALS~1\Temp\RSP60E.tmp"
Creating temporary file "C:\DOCUME~1\alanmi\LOCALS~1\Temp\RSP60F.tmp" with contents
[
kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /incremental:yes /pdb:"Debug/abc.pdb" /debug /machine:I386 /out:"_TEST/abc.exe" /pdbtype:sept
.\Debug\abc.obj
......@@ -59,6 +59,8 @@ kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32
.\Debug\ioReadBlif.obj
.\Debug\ioReadPla.obj
.\Debug\ioReadVerilog.obj
.\Debug\ioUtil.obj
.\Debug\ioWriteBench.obj
.\Debug\ioWriteBlif.obj
.\Debug\ioWriteCnf.obj
.\Debug\ioWritePla.obj
......@@ -264,15 +266,15 @@ kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32
.\Debug\safe_mem.obj
.\Debug\strsav.obj
.\Debug\texpand.obj
.\Debug\ioUtil.obj
.\Debug\ioWriteBench.obj
.\Debug\abcSeq.obj
.\Debug\abcSeqRetime.obj
]
Creating command line "link.exe @C:\DOCUME~1\alanmi\LOCALS~1\Temp\RSP4DD.tmp"
Creating command line "link.exe @C:\DOCUME~1\alanmi\LOCALS~1\Temp\RSP60F.tmp"
<h3>Output Window</h3>
Compiling...
abcMap.c
abc.c
Linking...
Creating temporary file "C:\DOCUME~1\alanmi\LOCALS~1\Temp\RSP4DE.tmp" with contents
Creating temporary file "C:\DOCUME~1\alanmi\LOCALS~1\Temp\RSP610.tmp" with contents
[
/nologo /o"Debug/abc.bsc"
.\Debug\abc.sbr
......@@ -319,6 +321,8 @@ Creating temporary file "C:\DOCUME~1\alanmi\LOCALS~1\Temp\RSP4DE.tmp" with conte
.\Debug\ioReadBlif.sbr
.\Debug\ioReadPla.sbr
.\Debug\ioReadVerilog.sbr
.\Debug\ioUtil.sbr
.\Debug\ioWriteBench.sbr
.\Debug\ioWriteBlif.sbr
.\Debug\ioWriteCnf.sbr
.\Debug\ioWritePla.sbr
......@@ -524,9 +528,9 @@ Creating temporary file "C:\DOCUME~1\alanmi\LOCALS~1\Temp\RSP4DE.tmp" with conte
.\Debug\safe_mem.sbr
.\Debug\strsav.sbr
.\Debug\texpand.sbr
.\Debug\ioUtil.sbr
.\Debug\ioWriteBench.sbr]
Creating command line "bscmake.exe @C:\DOCUME~1\alanmi\LOCALS~1\Temp\RSP4DE.tmp"
.\Debug\abcSeq.sbr
.\Debug\abcSeqRetime.sbr]
Creating command line "bscmake.exe @C:\DOCUME~1\alanmi\LOCALS~1\Temp\RSP610.tmp"
Creating browse info file...
<h3>Output Window</h3>
......
src/base/abc/abc.c
......@@ -69,6 +69,9 @@ static int Abc_CommandSuperChoice ( Abc_Frame_t * pAbc, int argc, char ** argv
static int Abc_CommandFpga ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandSeq ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandRetime ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandCec ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandSec ( Abc_Frame_t * pAbc, int argc, char ** argv );
......@@ -130,6 +133,9 @@ void Abc_Init( Abc_Frame_t * pAbc )
Cmd_CommandAdd( pAbc, "FPGA mapping", "fpga", Abc_CommandFpga, 1 );
Cmd_CommandAdd( pAbc, "Sequential", "seq", Abc_CommandSeq, 1 );
Cmd_CommandAdd( pAbc, "Sequential", "retime", Abc_CommandRetime, 1 );
Cmd_CommandAdd( pAbc, "Verification", "cec", Abc_CommandCec, 0 );
Cmd_CommandAdd( pAbc, "Verification", "sec", Abc_CommandSec, 0 );
......@@ -170,6 +176,7 @@ int Abc_CommandPrintStats( Abc_Frame_t * pAbc, int argc, char ** argv )
Abc_Ntk_t * pNtk;
bool fShort;
int c;
int fFactor;
pNtk = Abc_FrameReadNet(pAbc);
pOut = Abc_FrameReadOut(pAbc);
......@@ -177,14 +184,18 @@ int Abc_CommandPrintStats( Abc_Frame_t * pAbc, int argc, char ** argv )
// set the defaults
fShort = 1;
fFactor = 0;
util_getopt_reset();
while ( ( c = util_getopt( argc, argv, "sh" ) ) != EOF )
while ( ( c = util_getopt( argc, argv, "sfh" ) ) != EOF )
{
switch ( c )
{
case 's':
fShort ^= 1;
break;
case 'f':
fFactor ^= 1;
break;
case 'h':
goto usage;
default:
......@@ -197,12 +208,13 @@ int Abc_CommandPrintStats( Abc_Frame_t * pAbc, int argc, char ** argv )
fprintf( Abc_FrameReadErr(pAbc), "Empty network\n" );
return 1;
}
Abc_NtkPrintStats( pOut, pNtk );
Abc_NtkPrintStats( pOut, pNtk, fFactor );
return 0;
usage:
fprintf( pErr, "usage: print_stats [-h]\n" );
fprintf( pErr, "usage: print_stats [-fh]\n" );
fprintf( pErr, "\t prints the network statistics and\n" );
fprintf( pErr, "\t-f : toggles printing the literal count in the factored forms [default = %s]\n", fFactor? "yes": "no" );
fprintf( pErr, "\t-h : print the command usage\n");
return 1;
}
......@@ -2799,6 +2811,147 @@ usage:
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_CommandSeq( Abc_Frame_t * pAbc, int argc, char ** argv )
{
FILE * pOut, * pErr;
Abc_Ntk_t * pNtk, * pNtkRes;
int c;
extern Abc_Ntk_t * Abc_NtkSuperChoice( Abc_Ntk_t * pNtk );
pNtk = Abc_FrameReadNet(pAbc);
pOut = Abc_FrameReadOut(pAbc);
pErr = Abc_FrameReadErr(pAbc);
// set defaults
util_getopt_reset();
while ( ( c = util_getopt( 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_NtkIsAig(pNtk) )
{
fprintf( pErr, "Works only for AIG.\n" );
return 1;
}
// get the new network
pNtkRes = Abc_NtkAigToSeq( pNtk );
if ( pNtkRes == NULL )
{
fprintf( pErr, "Converting to sequential AIG has failed.\n" );
return 1;
}
// replace the current network
Abc_FrameReplaceCurrentNetwork( pAbc, pNtkRes );
return 0;
usage:
fprintf( pErr, "usage: seq [-h]\n" );
fprintf( pErr, "\t converts AIG into sequential AIG (while sweeping latches)\n" );
fprintf( pErr, "\t-h : print the command usage\n");
return 1;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_CommandRetime( Abc_Frame_t * pAbc, int argc, char ** argv )
{
FILE * pOut, * pErr;
Abc_Ntk_t * pNtk;
int c;
int fForward;
int fBackward;
extern Abc_Ntk_t * Abc_NtkSuperChoice( Abc_Ntk_t * pNtk );
pNtk = Abc_FrameReadNet(pAbc);
pOut = Abc_FrameReadOut(pAbc);
pErr = Abc_FrameReadErr(pAbc);
// set defaults
fForward = 0;
fBackward = 0;
util_getopt_reset();
while ( ( c = util_getopt( argc, argv, "fbh" ) ) != EOF )
{
switch ( c )
{
case 'f':
fForward ^= 1;
break;
case 'b':
fBackward ^= 1;
break;
case 'h':
goto usage;
default:
goto usage;
}
}
if ( pNtk == NULL )
{
fprintf( pErr, "Empty network.\n" );
return 1;
}
if ( !Abc_NtkIsSeq(pNtk) )
{
fprintf( pErr, "Works only for sequential AIG.\n" );
return 1;
}
// get the new network
if ( fForward )
Abc_NtkSeqRetimeForward( pNtk );
else if ( fBackward )
Abc_NtkSeqRetimeBackward( pNtk );
else
Abc_NtkSeqRetimeDelay( pNtk );
return 0;
usage:
fprintf( pErr, "usage: retime [-fbh]\n" );
fprintf( pErr, "\t retimes sequential AIG (default is Pan's algorithm)\n" );
fprintf( pErr, "\t-f : toggle forward retiming [default = %s]\n", fForward? "yes": "no" );
fprintf( pErr, "\t-b : toggle backward retiming [default = %s]\n", fBackward? "yes": "no" );
fprintf( pErr, "\t-h : print the command usage\n");
return 1;
}
/**Function*************************************************************
......
src/base/abc/abcCreate.c
......@@ -32,8 +32,6 @@ static Abc_Obj_t * Abc_ObjAlloc( Abc_Ntk_t * pNtk, Abc_ObjType_t Type );
static void Abc_ObjRecycle( Abc_Obj_t * pObj );
static void Abc_ObjAdd( Abc_Obj_t * pObj );
extern void Extra_StopManager( DdManager * dd );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFITIONS ///
////////////////////////////////////////////////////////////////////////
......@@ -78,7 +76,9 @@ Abc_Ntk_t * Abc_NtkAlloc( Abc_NtkType_t Type )
else if ( Abc_NtkIsLogicBdd(pNtk) )
pNtk->pManFunc = Cudd_Init( 20, 0, CUDD_UNIQUE_SLOTS, CUDD_CACHE_SLOTS, 0 );
else if ( Abc_NtkIsAig(pNtk) )
pNtk->pManFunc = Abc_AigAlloc( pNtk );
pNtk->pManFunc = Abc_AigAlloc( pNtk, 0 );
else if ( Abc_NtkIsSeq(pNtk) )
pNtk->pManFunc = Abc_AigAlloc( pNtk, 1 );
else if ( Abc_NtkIsMapped(pNtk) )
pNtk->pManFunc = Abc_FrameReadLibGen(Abc_FrameGetGlobalFrame());
else
......@@ -155,6 +155,30 @@ void Abc_NtkFinalize( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkNew )
/**Function*************************************************************
Synopsis [Finalizes the network adding latches to CI/CO lists and creates their names.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_NtkFinalizeLatches( Abc_Ntk_t * pNtk )
{
Abc_Obj_t * pLatch;
int i;
// set the COs of the strashed network
Abc_NtkForEachLatch( pNtk, pLatch, i )
{
Vec_PtrPush( pNtk->vCis, pLatch );
Vec_PtrPush( pNtk->vCos, pLatch );
Abc_NtkLogicStoreName( pLatch, Abc_ObjNameSuffix(pLatch, "L") );
}
}
/**Function*************************************************************
Synopsis [Starts a new network using existing network as a model.]
Description []
......@@ -564,7 +588,9 @@ Abc_Obj_t * Abc_NtkDupObj( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pObj )
{
Abc_Obj_t * pObjNew;
pObjNew = Abc_ObjAlloc( pNtkNew, pObj->Type );
if ( Abc_ObjIsNode(pObj) ) // copy the function
if ( Abc_ObjIsNode(pObj) ) // copy the function if network is the same type
{
if ( pNtkNew->Type == pObj->pNtk->Type || Abc_NtkIsNetlist(pObj->pNtk) || Abc_NtkIsNetlist(pNtkNew) )
{
if ( Abc_NtkIsSop(pNtkNew) )
pObjNew->pData = Abc_SopRegister( pNtkNew->pManFunc, pObj->pData );
......@@ -575,6 +601,7 @@ Abc_Obj_t * Abc_NtkDupObj( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pObj )
else if ( !Abc_NtkIsAig(pNtkNew) )
assert( 0 );
}
}
else if ( Abc_ObjIsNet(pObj) ) // copy the name
pObjNew->pData = Abc_NtkRegisterName( pNtkNew, pObj->pData );
else if ( Abc_ObjIsLatch(pObj) ) // copy the reset value
......@@ -587,6 +614,55 @@ Abc_Obj_t * Abc_NtkDupObj( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pObj )
/**Function*************************************************************
Synopsis [Creates a new constant node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Abc_Obj_t * Abc_NtkDupConst1( Abc_Ntk_t * pNtkAig, Abc_Ntk_t * pNtkNew )
{
Abc_Obj_t * pConst1;
assert( Abc_NtkIsAig(pNtkAig) );
pConst1 = Abc_AigConst1(pNtkAig->pManFunc);
if ( Abc_ObjFanoutNum( pConst1 ) > 0 )
pConst1->pCopy = Abc_NodeCreateConst1( pNtkNew );
return pConst1->pCopy;
}
/**Function*************************************************************
Synopsis [Creates a new constant node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Abc_Obj_t * Abc_NtkDupReset( Abc_Ntk_t * pNtkAig, Abc_Ntk_t * pNtkNew )
{
Abc_Obj_t * pReset, * pConst1;
assert( Abc_NtkIsAig(pNtkAig) );
assert( Abc_NtkIsLogicSop(pNtkNew) );
pReset = Abc_AigReset(pNtkAig->pManFunc);
if ( Abc_ObjFanoutNum( pReset ) > 0 )
{
// create new latch with reset value 0
pReset->pCopy = Abc_NtkCreateLatch( pNtkNew );
// add constant node fanin to the latch
pConst1 = Abc_AigConst1(pNtkAig->pManFunc);
Abc_ObjAddFanin( pReset->pCopy, pConst1->pCopy );
}
return pReset->pCopy;
}
/**Function*************************************************************
Synopsis [Deletes the object from the network.]
Description []
......@@ -614,6 +690,7 @@ void Abc_NtkDeleteObj( Abc_Obj_t * pObj )
// remove from the list of objects
Vec_PtrWriteEntry( pNtk->vObjs, pObj->Id, NULL );
pObj->Id = (1<<26)-1;
pNtk->nObjs--;
// perform specialized operations depending on the object type
......@@ -625,8 +702,8 @@ void Abc_NtkDeleteObj( Abc_Obj_t * pObj )
printf( "Error: The net is not in the table...\n" );
assert( 0 );
}
pObj->pData = NULL;
pNtk->nNets--;
assert( !Abc_ObjIsPi(pObj) && !Abc_ObjIsPo(pObj) );
}
else if ( Abc_ObjIsNode(pObj) )
{
......@@ -898,6 +975,8 @@ Abc_Obj_t * Abc_NodeCreateConst0( Abc_Ntk_t * pNtk )
Abc_Obj_t * Abc_NodeCreateConst1( Abc_Ntk_t * pNtk )
{
Abc_Obj_t * pNode;
if ( Abc_NtkIsAig(pNtk) || Abc_NtkIsSeq(pNtk) )
return Abc_AigConst1(pNtk->pManFunc);
pNode = Abc_NtkCreateNode( pNtk );
if ( Abc_NtkIsSop(pNtk) )
pNode->pData = Abc_SopRegister( pNtk->pManFunc, " 1\n" );
......
src/base/abc/abcNetlist.c
......@@ -230,15 +230,21 @@ Abc_Ntk_t * Abc_NtkAigToLogicSop( Abc_Ntk_t * pNtk )
assert( Abc_NtkIsAig(pNtk) );
// start the network
pNtkNew = Abc_NtkStartFrom( pNtk, ABC_NTK_LOGIC_SOP );
// create the constant node
Abc_NtkDupConst1( pNtk, pNtkNew );
// duplicate the nodes and create node functions
Abc_NtkForEachNode( pNtk, pObj, i )
{
if ( Abc_NodeIsConst(pObj) )
continue;
Abc_NtkDupObj(pNtkNew, pObj);
pObj->pCopy->pData = Abc_SopCreateAnd2( pNtkNew->pManFunc, Abc_ObjFaninC0(pObj), Abc_ObjFaninC1(pObj) );
}
// create the choice nodes
Abc_NtkForEachNode( pNtk, pObj, i )
{
if ( Abc_NodeIsConst(pObj) )
continue;
if ( !Abc_NodeIsAigChoice(pObj) )
continue;
// create an OR gate
......@@ -255,12 +261,10 @@ Abc_Ntk_t * Abc_NtkAigToLogicSop( Abc_Ntk_t * pNtk )
// set the new node
pObj->pCopy = pNodeNew;
}
// connect the objects
// connect the objects, including the COs
Abc_NtkForEachObj( pNtk, pObj, i )
Abc_ObjForEachFanin( pObj, pFanin, k )
Abc_ObjAddFanin( pObj->pCopy, pFanin->pCopy );
// connect the COs
Abc_NtkFinalize( pNtk, pNtkNew );
// fix the problem with complemented and duplicated CO edges
Abc_NtkLogicMakeSimpleCos( pNtkNew, 0 );
// duplicate the EXDC Ntk
......@@ -299,6 +303,8 @@ Abc_Ntk_t * Abc_NtkAigToLogicSopBench( Abc_Ntk_t * pNtk )
printf( "Warning: Choice nodes are skipped.\n" );
// start the network
pNtkNew = Abc_NtkStartFrom( pNtk, ABC_NTK_LOGIC_SOP );
// create the constant node
Abc_NtkDupConst1( pNtk, pNtkNew );
// collect the nodes to be used (marks all nodes with current TravId)
vNodes = Abc_NtkDfs( pNtk );
// create inverters for the CI and remember them
......@@ -308,8 +314,11 @@ Abc_Ntk_t * Abc_NtkAigToLogicSopBench( Abc_Ntk_t * pNtk )
// duplicate the nodes, create node functions, and inverters
Vec_PtrForEachEntry( vNodes, pObj, i )
{
if ( !Abc_NodeIsConst(pObj) )
{
Abc_NtkDupObj( pNtkNew, pObj );
pObj->pCopy->pData = Abc_SopCreateAnd( pNtkNew->pManFunc, 2 );
}
if ( Abc_AigNodeHasComplFanoutEdgeTrav(pObj) )
pObj->pCopy->pCopy = Abc_NodeCreateInv( pNtkNew, pObj->pCopy );
}
......@@ -324,7 +333,14 @@ Abc_Ntk_t * Abc_NtkAigToLogicSopBench( Abc_Ntk_t * pNtk )
}
Vec_PtrFree( vNodes );
// connect the COs
Abc_NtkFinalize( pNtk, pNtkNew );
Abc_NtkForEachCo( pNtk, pObj, i )
{
pFanin = Abc_ObjFanin0(pObj);
if ( Abc_ObjFaninC0( pObj ) )
Abc_ObjAddFanin( pObj->pCopy, pFanin->pCopy->pCopy );
else
Abc_ObjAddFanin( pObj->pCopy, pFanin->pCopy );
}
// fix the problem with complemented and duplicated CO edges
Abc_NtkLogicMakeSimpleCos( pNtkNew, 0 );
// duplicate the EXDC Ntk
......
src/base/abc/abcPrint.c
......@@ -40,11 +40,15 @@
SeeAlso []
***********************************************************************/
void Abc_NtkPrintStats( FILE * pFile, Abc_Ntk_t * pNtk )
void Abc_NtkPrintStats( FILE * pFile, Abc_Ntk_t * pNtk, int fFactored )
{
fprintf( pFile, "%-15s:", pNtk->pName );
fprintf( pFile, " i/o = %3d/%3d", Abc_NtkPiNum(pNtk), Abc_NtkPoNum(pNtk) );
if ( !Abc_NtkIsSeq(pNtk) )
fprintf( pFile, " lat = %4d", Abc_NtkLatchNum(pNtk) );
else
fprintf( pFile, " lat = %4d", Abc_NtkSeqLatchNum(pNtk) );
if ( Abc_NtkIsNetlist(pNtk) )
{
......@@ -56,13 +60,16 @@ void Abc_NtkPrintStats( FILE * pFile, Abc_Ntk_t * pNtk )
fprintf( pFile, " and = %5d", Abc_NtkNodeNum(pNtk) );
fprintf( pFile, " choice = %5d", Abc_NtkCountChoiceNodes(pNtk) );
}
else if ( Abc_NtkIsSeq(pNtk) )
fprintf( pFile, " and = %5d", Abc_NtkNodeNum(pNtk) );
else
fprintf( pFile, " nd = %5d", Abc_NtkNodeNum(pNtk) );
if ( Abc_NtkIsLogicSop(pNtk) )
{
fprintf( pFile, " cube = %5d", Abc_NtkGetCubeNum(pNtk) );
fprintf( pFile, " lit(sop) = %5d", Abc_NtkGetLitNum(pNtk) );
// fprintf( pFile, " lit(sop) = %5d", Abc_NtkGetLitNum(pNtk) );
if ( fFactored )
fprintf( pFile, " lit(fac) = %5d", Abc_NtkGetLitFactNum(pNtk) );
}
else if ( Abc_NtkIsLogicBdd(pNtk) )
......@@ -72,11 +79,14 @@ void Abc_NtkPrintStats( FILE * pFile, Abc_Ntk_t * pNtk )
fprintf( pFile, " area = %5.2f", Abc_NtkGetMappedArea(pNtk) );
fprintf( pFile, " delay = %5.2f", Abc_NtkDelayTrace(pNtk) );
}
else if ( !Abc_NtkIsAig(pNtk) )
else if ( !Abc_NtkIsAig(pNtk) && !Abc_NtkIsSeq(pNtk) )
{
assert( 0 );
}
if ( !Abc_NtkIsSeq(pNtk) )
fprintf( pFile, " lev = %2d", Abc_NtkGetLevelNum(pNtk) );
fprintf( pFile, "\n" );
}
......
src/base/abc/abcSeqRetime.c 0 → 100644
/**CFile****************************************************************
FileName [abcSeqRetime.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Network and node package.]
Synopsis [Peforms retiming for optimal clock cycle.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: abcSeqRetime.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "abc.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
// storing arrival times in the nodes
static inline int Abc_NodeReadLValue( Abc_Obj_t * pNode ) { return Vec_IntEntry( (pNode)->pNtk->pData, (pNode)->Id ); }
static inline void Abc_NodeSetLValue( Abc_Obj_t * pNode, int Value ) { Vec_IntWriteEntry( (pNode)->pNtk->pData, (pNode)->Id, (Value) ); }
// the internal procedures
static int Abc_NtkRetimeSearch_rec( Abc_Ntk_t * pNtk, int FiMin, int FiMax );
static int Abc_NtkRetimeForPeriod( Abc_Ntk_t * pNtk, int Fi );
static int Abc_NodeUpdateLValue( Abc_Obj_t * pObj, int Fi );
// node status after updating its arrival time
enum { ABC_UPDATE_FAIL, ABC_UPDATE_NO, ABC_UPDATE_YES };
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Retimes AIG for optimal delay.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_NtkSeqRetimeDelay( Abc_Ntk_t * pNtk )
{
int FiMax, FiBest;
assert( Abc_NtkIsSeq( pNtk ) );
// start storage for sequential arrival times
assert( pNtk->pData == NULL );
pNtk->pData = Vec_IntAlloc( 0 );
// get the maximum possible clock
FiMax = Abc_NtkNodeNum(pNtk);
// make sure this clock period is feasible
assert( Abc_NtkRetimeForPeriod( pNtk, FiMax ) );
// search for the optimal clock period between 0 and nLevelMax
FiBest = Abc_NtkRetimeSearch_rec( pNtk, 0, FiMax );
// print the result
printf( "The best clock period is %3d.\n", FiBest );
// free storage
Vec_IntFree( pNtk->pData );
pNtk->pData = NULL;
}
/**Function*************************************************************
Synopsis [Performs binary search for the optimal clock period.]
Description [Assumes that FiMin is infeasible while FiMax is feasible.]
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_NtkRetimeSearch_rec( Abc_Ntk_t * pNtk, int FiMin, int FiMax )
{
int Median;
assert( FiMin < FiMax );
if ( FiMin + 1 == FiMax )
return FiMax;
Median = FiMin + (FiMax - FiMin)/2;
if ( Abc_NtkRetimeForPeriod( pNtk, Median ) )
return Abc_NtkRetimeSearch_rec( pNtk, FiMin, Median ); // Median is feasible
else
return Abc_NtkRetimeSearch_rec( pNtk, Median, FiMax ); // Median is infeasible
}
/**Function*************************************************************
Synopsis [Returns 1 if retiming with this clock period is feasible.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_NtkRetimeForPeriod( Abc_Ntk_t * pNtk, int Fi )
{
Vec_Ptr_t * vFrontier;
Abc_Obj_t * pObj, * pFanout;
int RetValue, i, k;
// set l-values of all nodes to be minus infinity
Vec_IntFill( pNtk->pData, Abc_NtkObjNum(pNtk), -ABC_INFINITY );
// start the frontier by including PI fanouts
vFrontier = Vec_PtrAlloc( 100 );
Abc_NtkForEachPi( pNtk, pObj, i )
{
Abc_NodeSetLValue( pObj, 0 );
Abc_ObjForEachFanout( pObj, pFanout, k )
if ( pFanout->fMarkA == 0 )
{
Vec_PtrPush( vFrontier, pFanout );
pFanout->fMarkA = 1;
}
}
// iterate until convergence
Vec_PtrForEachEntry( vFrontier, pObj, i )
{
RetValue = Abc_NodeUpdateLValue( pObj, Fi );
if ( RetValue == ABC_UPDATE_FAIL )
break;
// unmark the node as processed
pObj->fMarkA = 0;
if ( RetValue == ABC_UPDATE_NO )
continue;
assert( RetValue == ABC_UPDATE_YES );
// arrival times have changed - add fanouts to the frontier
Abc_ObjForEachFanout( pObj, pFanout, k )
if ( pFanout->fMarkA == 0 )
{
Vec_PtrPush( vFrontier, pFanout );
pFanout->fMarkA = 1;
}
}
// clean the nodes
Vec_PtrForEachEntryStart( vFrontier, pObj, k, i )
pObj->fMarkA = 0;
// report the results
if ( RetValue == ABC_UPDATE_FAIL )
printf( "Period = %3d. Updated nodes = %6d. Infeasible\n", Fi, vFrontier->nSize );
else
printf( "Period = %3d. Updated nodes = %6d. Feasible\n", Fi, vFrontier->nSize );
Vec_PtrFree( vFrontier );
return RetValue != ABC_UPDATE_FAIL;
}
/**Function*************************************************************
Synopsis [Computes the l-value of the node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_NodeUpdateLValue( Abc_Obj_t * pObj, int Fi )
{
int lValueNew, lValue0, lValue1;
assert( !Abc_ObjIsPi(pObj) );
lValue0 = Abc_NodeReadLValue(Abc_ObjFanin0(pObj)) - Fi * Abc_ObjFaninL0(pObj);
if ( Abc_ObjFaninNum(pObj) == 2 )
lValue1 = Abc_NodeReadLValue(Abc_ObjFanin1(pObj)) - Fi * Abc_ObjFaninL1(pObj);
else
lValue1 = -ABC_INFINITY;
lValueNew = 1 + ABC_MAX( lValue0, lValue1 );
if ( Abc_ObjIsPo(pObj) && lValueNew > Fi )
return ABC_UPDATE_FAIL;
if ( lValueNew == Abc_NodeReadLValue(pObj) )
return ABC_UPDATE_NO;
Abc_NodeSetLValue( pObj, lValueNew );
return ABC_UPDATE_YES;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
src/base/abc/module.make
......@@ -22,6 +22,8 @@ SRC += src/base/abc/abc.c \
src/base/abc/abcRenode.c \
src/base/abc/abcRes.c \
src/base/abc/abcSat.c \
src/base/abc/abcSeq.c \
src/base/abc/abcSeqRetime.c \
src/base/abc/abcShow.c \
src/base/abc/abcSop.c \
src/base/abc/abcStrash.c \
......
src/misc/vec/vecPtr.h
......@@ -51,6 +51,9 @@ struct Vec_Ptr_t_
#define Vec_PtrForEachEntry( vVec, pEntry, i ) \
for ( i = 0; (i < Vec_PtrSize(vVec)) && (((pEntry) = Vec_PtrEntry(vVec, i)), 1); i++ )
#define Vec_PtrForEachEntryStart( vVec, pEntry, i, Start ) \
for ( i = Start; (i < Vec_PtrSize(vVec)) && (((pEntry) = Vec_PtrEntry(vVec, i)), 1); i++ )
#define Vec_PtrForEachEntryByLevel( vVec, pEntry, i, k ) \
for ( i = 0; i < Vec_PtrSize(vVec); i++ ) \
Vec_PtrForEachEntry( ((Vec_Ptr_t *)Vec_PtrEntry(vVec, i)), pEntry, k )
......
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