/**Function*************************************************************
Synopsis [Derives the library from the genlib library.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Map_SuperLibDeriveFromGenlib( Mio_Library_t * pLib )
{
Abc_Frame_t * pAbc = Abc_FrameGetGlobalFrame();
char * pNameGeneric;
char * FileNameGenlib;
char * FileNameSuper;
char * CommandSuper;
char * CommandRead;
FILE * pFile;
if ( pLib == NULL )
return 0;
FileNameGenlib = ABC_ALLOC( char, 10000 );
FileNameSuper = ABC_ALLOC( char, 10000 );
CommandSuper = ABC_ALLOC( char, 10000 );
CommandRead = ABC_ALLOC( char, 10000 );
// write the current library into the file
sprintf( FileNameGenlib, "%s_temp", Mio_LibraryReadName(pLib) );
pFile = fopen( FileNameGenlib, "w" );
Mio_WriteLibrary( pFile, pLib, 0 );
fclose( pFile );
// get the file name with the library
pNameGeneric = Extra_FileNameGeneric( Mio_LibraryReadName(pLib) );
sprintf( FileNameSuper, "%s.super", pNameGeneric );
ABC_FREE( pNameGeneric );
sprintf( CommandSuper, "super -L 1 -I 5 -D 10000000 -A 10000000 -T 100 %s", FileNameGenlib );
if ( Cmd_CommandExecute( pAbc, CommandSuper ) )
{
ABC_FREE( FileNameGenlib );
ABC_FREE( FileNameSuper );
ABC_FREE( CommandSuper );
ABC_FREE( CommandRead );
fprintf( stdout, "Cannot execute command \"%s\".\n", CommandSuper );
return 0;
}
//#ifdef WIN32
// _unlink( FileNameGenlib );
//#else
// unlink( FileNameGenlib );
//#endif
printf( "A simple supergate library is derived from gate library \"%s\".\n", Mio_LibraryReadName(pLib) );
fflush( stdout );
sprintf( CommandRead, "read_super %s", FileNameSuper );
if ( Cmd_CommandExecute( pAbc, CommandRead ) )
{
//#ifdef WIN32
// _unlink( FileNameSuper );
//#else
// unlink( FileNameSuper );
//#endif
fprintf( stdout, "Cannot execute command \"%s\".\n", CommandRead );
ABC_FREE( FileNameGenlib );
ABC_FREE( FileNameSuper );
ABC_FREE( CommandSuper );
ABC_FREE( CommandRead );
return 0;
}
//#ifdef WIN32
// _unlink( FileNameSuper );
//#else
// unlink( FileNameSuper );
//#endif
ABC_FREE( FileNameGenlib );
ABC_FREE( FileNameSuper );
ABC_FREE( CommandSuper );
ABC_FREE( CommandRead );
return 1;
}
/**Function*************************************************************
Synopsis [Interface with the mapping package.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Abc_Ntk_t * Abc_NtkMap( Abc_Ntk_t * pNtk, double DelayTarget, double AreaMulti, double DelayMulti, float LogFan, float Slew, float Gain, int nGatesMin, int fRecovery, int fSwitching, int fSkipFanout, int fVerbose )
{
static int fUseMulti = 0;
int fShowSwitching = 1;
Abc_Ntk_t * pNtkNew;
Map_Man_t * pMan;
Vec_Int_t * vSwitching = NULL;
float * pSwitching = NULL;
abctime clk, clkTotal = Abc_Clock();
Mio_Library_t * pLib = (Mio_Library_t *)Abc_FrameReadLibGen();
assert( Abc_NtkIsStrash(pNtk) );
// derive library from SCL
// if the library is created here, it will be deleted when pSuperLib is deleted in Map_SuperLibFree()
if ( Abc_FrameReadLibScl() && Abc_SclHasDelayInfo( Abc_FrameReadLibScl() ) )
{
pLib = Abc_SclDeriveGenlib( Abc_FrameReadLibScl(), Slew, Gain, nGatesMin, fVerbose );
if ( Abc_FrameReadLibGen() )
Mio_LibraryTransferDelays( (Mio_Library_t *)Abc_FrameReadLibGen(), pLib );
// remove supergate library
Map_SuperLibFree( (Map_SuperLib_t *)Abc_FrameReadLibSuper() );
Abc_FrameSetLibSuper( NULL );
}
// quit if there is no library
if ( pLib == NULL )
{
printf( "The current library is not available.\n" );
return 0;
}
if ( AreaMulti != 0.0 )
fUseMulti = 1, printf( "The cell areas are multiplied by the factor: <num_fanins> ^ (%.2f).\n", AreaMulti );
if ( DelayMulti != 0.0 )
fUseMulti = 1, printf( "The cell delays are multiplied by the factor: <num_fanins> ^ (%.2f).\n", DelayMulti );
// penalize large gates by increasing their area
if ( AreaMulti != 0.0 )
Mio_LibraryMultiArea( pLib, AreaMulti );
if ( DelayMulti != 0.0 )
Mio_LibraryMultiDelay( pLib, DelayMulti );
// derive the supergate library
if ( fUseMulti || Abc_FrameReadLibSuper() == NULL )
{
if ( fVerbose )
printf( "Converting \"%s\" into supergate library \"%s\".\n",
Mio_LibraryReadName(pLib), Extra_FileNameGenericAppend(Mio_LibraryReadName(pLib), ".super") );
// compute supergate library to be used for mapping
Map_SuperLibDeriveFromGenlib( pLib, fVerbose );
}
// return the library to normal
if ( AreaMulti != 0.0 )
Mio_LibraryMultiArea( (Mio_Library_t *)Abc_FrameReadLibGen(), -AreaMulti );
if ( DelayMulti != 0.0 )
Mio_LibraryMultiDelay( (Mio_Library_t *)Abc_FrameReadLibGen(), -DelayMulti );
// print a warning about choice nodes
if ( fVerbose && Abc_NtkGetChoiceNum( pNtk ) )
printf( "Performing mapping with choices.\n" );
// compute switching activity
fShowSwitching |= fSwitching;
if ( fShowSwitching )
{
extern Vec_Int_t * Sim_NtkComputeSwitching( Abc_Ntk_t * pNtk, int nPatterns );
vSwitching = Sim_NtkComputeSwitching( pNtk, 4096 );
pSwitching = (float *)vSwitching->pArray;
}
// perform the mapping
pMan = Abc_NtkToMap( pNtk, DelayTarget, fRecovery, pSwitching, fVerbose );
if ( pSwitching ) Vec_IntFree( vSwitching );
if ( pMan == NULL )
return NULL;
clk = Abc_Clock();
Map_ManSetSwitching( pMan, fSwitching );
Map_ManSetSkipFanout( pMan, fSkipFanout );
if ( LogFan != 0 )
Map_ManCreateNodeDelays( pMan, LogFan );
if ( !Map_Mapping( pMan ) )
{
Map_ManFree( pMan );
return NULL;
}
// Map_ManPrintStatsToFile( pNtk->pSpec, Map_ManReadAreaFinal(pMan), Map_ManReadRequiredGlo(pMan), Abc_Clock()-clk );
// reconstruct the network after mapping
pNtkNew = Abc_NtkFromMap( pMan, pNtk );
Map_ManFree( pMan );
if ( pNtkNew == NULL )
return NULL;
if ( pNtk->pExdc )
pNtkNew->pExdc = Abc_NtkDup( pNtk->pExdc );
if ( fVerbose )
{
ABC_PRT( "Total runtime", Abc_Clock() - clkTotal );
}
// make sure that everything is okay
if ( !Abc_NtkCheck( pNtkNew ) )
{
printf( "Abc_NtkMap: The network check has failed.\n" );
Abc_NtkDelete( pNtkNew );
return NULL;
}
return pNtkNew;
}
/**Function*************************************************************
Synopsis [Derives the functionality of the supergate.]
Description [This procedure is useful for verification the supergate
library. The truth table derived by this procedure should be the same
as the one contained in the original supergate file.]
SideEffects []
SeeAlso []
***********************************************************************/
void Map_LibraryComputeTruth_rec( Map_SuperLib_t * pLib, char * pFormula, unsigned uTruthsIn[][2], unsigned uTruthRes[] )
{
Mio_Gate_t * pMioGate;
char * pGateName, * pStrings[6];
unsigned uTruthsFanins[6][2];
int nStrings, i;
// perform one step parsing of the formula
// detect the root gate name, the next-step strings, and their number
pGateName = Map_LibraryReadFormulaStep( pFormula, pStrings, &nStrings );
if ( nStrings == 0 ) // elementary variable
{
assert( pGateName[0] - 'a' < pLib->nVarsMax );
uTruthRes[0] = uTruthsIn[pGateName[0] - 'a'][0];
uTruthRes[1] = uTruthsIn[pGateName[0] - 'a'][1];
return;
}
// derive the functionality of the fanins
for ( i = 0; i < nStrings; i++ )
Map_LibraryComputeTruth_rec( pLib, pStrings[i], uTruthsIn, uTruthsFanins[i] );
// get the root supergate
pMioGate = Mio_LibraryReadGateByName( pLib->pGenlib, pGateName, NULL );
if ( pMioGate == NULL )
printf( "A supergate contains gate \"%s\" that is not in \"%s\".\n", pGateName, Mio_LibraryReadName(pLib->pGenlib) );
// derive the functionality of the output of the supergate
Mio_DeriveTruthTable( pMioGate, uTruthsFanins, nStrings, pLib->nVarsMax, uTruthRes );
}