diff options
Diffstat (limited to 'src/base/io/ioReadAiger.c')
| -rw-r--r-- | src/base/io/ioReadAiger.c | 116 |
1 files changed, 96 insertions, 20 deletions
diff --git a/src/base/io/ioReadAiger.c b/src/base/io/ioReadAiger.c index a5f6fb1d..13987a1b 100644 --- a/src/base/io/ioReadAiger.c +++ b/src/base/io/ioReadAiger.c @@ -233,7 +233,9 @@ Abc_Ntk_t * Io_ReadAiger( char * pFileName, int fCheck ) Vec_Int_t * vLits = NULL; Abc_Obj_t * pObj, * pNode0, * pNode1; Abc_Ntk_t * pNtkNew; - int nTotal, nInputs, nOutputs, nLatches, nAnds, nFileSize = -1, iTerm, nDigits, i; + int nTotal, nInputs, nOutputs, nLatches, nAnds; + int nBad = 0, nConstr = 0, nJust = 0, nFair = 0; + int nFileSize = -1, iTerm, nDigits, i; char * pContents, * pDrivers = NULL, * pSymbols, * pCur, * pName, * pType; unsigned uLit0, uLit1, uLit; @@ -257,36 +259,88 @@ Abc_Ntk_t * Io_ReadAiger( char * pFileName, int fCheck ) if ( strncmp(pContents, "aig", 3) != 0 || (pContents[3] != ' ' && pContents[3] != '2') ) { fprintf( stdout, "Wrong input file format.\n" ); - free( pContents ); + ABC_FREE( pContents ); return NULL; } - // allocate the empty AIG - pNtkNew = Abc_NtkAlloc( ABC_NTK_STRASH, ABC_FUNC_AIG, 1 ); - pName = Extra_FileNameGeneric( pFileName ); - pNtkNew->pName = Extra_UtilStrsav( pName ); - pNtkNew->pSpec = Extra_UtilStrsav( pFileName ); - ABC_FREE( pName ); - - - // read the file type - pCur = pContents; while ( *pCur++ != ' ' ); + // read the parameters (M I L O A + B C J F) + pCur = pContents; while ( *pCur != ' ' ) pCur++; pCur++; // read the number of objects - nTotal = atoi( pCur ); while ( *pCur++ != ' ' ); + nTotal = atoi( pCur ); while ( *pCur != ' ' ) pCur++; pCur++; // read the number of inputs - nInputs = atoi( pCur ); while ( *pCur++ != ' ' ); + nInputs = atoi( pCur ); while ( *pCur != ' ' ) pCur++; pCur++; // read the number of latches - nLatches = atoi( pCur ); while ( *pCur++ != ' ' ); + nLatches = atoi( pCur ); while ( *pCur != ' ' ) pCur++; pCur++; // read the number of outputs - nOutputs = atoi( pCur ); while ( *pCur++ != ' ' ); + nOutputs = atoi( pCur ); while ( *pCur != ' ' ) pCur++; pCur++; // read the number of nodes - nAnds = atoi( pCur ); while ( *pCur++ != '\n' ); + nAnds = atoi( pCur ); while ( *pCur != ' ' && *pCur != '\n' ) pCur++; + if ( *pCur == ' ' ) + { + assert( nOutputs == 0 ); + // read the number of properties + pCur++; + nBad = atoi( pCur ); while ( *pCur != ' ' && *pCur != '\n' ) pCur++; + nOutputs += nBad; + } + if ( *pCur == ' ' ) + { + // read the number of properties + pCur++; + nConstr = atoi( pCur ); while ( *pCur != ' ' && *pCur != '\n' ) pCur++; + nOutputs += nConstr; + } + if ( *pCur == ' ' ) + { + // read the number of properties + pCur++; + nJust = atoi( pCur ); while ( *pCur != ' ' && *pCur != '\n' ) pCur++; + nOutputs += nJust; + } + if ( *pCur == ' ' ) + { + // read the number of properties + pCur++; + nFair = atoi( pCur ); while ( *pCur != ' ' && *pCur != '\n' ) pCur++; + nOutputs += nFair; + } + if ( *pCur != '\n' ) + { + fprintf( stdout, "The parameter line is in a wrong format.\n" ); + ABC_FREE( pContents ); + return NULL; + } + pCur++; + // check the parameters if ( nTotal != nInputs + nLatches + nAnds ) { - fprintf( stdout, "The paramters are wrong.\n" ); + fprintf( stdout, "The number of objects does not match.\n" ); + ABC_FREE( pContents ); return NULL; } + if ( nJust || nFair ) + { + fprintf( stdout, "Reading AIGER files with liveness properties are currently not supported.\n" ); + ABC_FREE( pContents ); + return NULL; + } + + if ( nConstr ) + { + if ( nConstr == 1 ) + fprintf( stdout, "Warning: The last output is interpreted as a constraint.\n" ); + else + fprintf( stdout, "Warning: The last %d outputs are interpreted as constraints.\n", nConstr ); + } + + // allocate the empty AIG + pNtkNew = Abc_NtkAlloc( ABC_NTK_STRASH, ABC_FUNC_AIG, 1 ); + pName = Extra_FileNameGeneric( pFileName ); + pNtkNew->pName = Extra_UtilStrsav( pName ); + pNtkNew->pSpec = Extra_UtilStrsav( pFileName ); + ABC_FREE( pName ); + pNtkNew->nConstrs = nConstr; // prepare the array of nodes vNodes = Vec_PtrAlloc( 1 + nInputs + nLatches + nAnds ); @@ -359,7 +413,25 @@ Abc_Ntk_t * Io_ReadAiger( char * pFileName, int fCheck ) { Abc_NtkForEachLatchInput( pNtkNew, pObj, i ) { - uLit0 = atoi( pCur ); while ( *pCur++ != '\n' ); + uLit0 = atoi( pCur ); while ( *pCur != ' ' && *pCur != '\n' ) pCur++; + if ( *pCur == ' ' ) // read initial value + { + pCur++; + if ( atoi( pCur ) == 1 ) + Abc_LatchSetInit1( Abc_NtkBox(pNtkNew, i) ); + else if ( atoi( pCur ) == 0 ) + Abc_LatchSetInit0( Abc_NtkBox(pNtkNew, i) ); + else + Abc_LatchSetInitDc( Abc_NtkBox(pNtkNew, i) ); + while ( *pCur != ' ' && *pCur != '\n' ) pCur++; + } + if ( *pCur != '\n' ) + { + fprintf( stdout, "The initial value of latch number %d is not recongnized.\n", i ); + return NULL; + } + pCur++; + pNode0 = Abc_ObjNotCond( (Abc_Obj_t *)Vec_PtrEntry(vNodes, uLit0 >> 1), (uLit0 & 1) );//^ (uLit0 < 2) ); Abc_ObjAddFanin( pObj, pNode0 ); } @@ -403,7 +475,7 @@ Abc_Ntk_t * Io_ReadAiger( char * pFileName, int fCheck ) vTerms = pNtkNew->vPis; else if ( *pCur == 'l' ) vTerms = pNtkNew->vBoxes; - else if ( *pCur == 'o' ) + else if ( *pCur == 'o' || *pCur == 'b' || *pCur == 'c' || *pCur == 'j' || *pCur == 'f' ) vTerms = pNtkNew->vPos; else { @@ -486,6 +558,10 @@ Abc_Ntk_t * Io_ReadAiger( char * pFileName, int fCheck ) // remove the extra nodes Abc_AigCleanup( (Abc_Aig_t *)pNtkNew->pManFunc ); + // update polarity of the additional outputs + if ( nBad || nConstr || nJust || nFair ) + Abc_NtkInvertConstraints( pNtkNew ); + // check the result if ( fCheck && !Abc_NtkCheckRead( pNtkNew ) ) { |