diff options
Diffstat (limited to 'src/base/io/ioReadBench.c')
| -rw-r--r-- | src/base/io/ioReadBench.c | 69 |
1 files changed, 65 insertions, 4 deletions
diff --git a/src/base/io/ioReadBench.c b/src/base/io/ioReadBench.c index 7e54e5e3..bd01f914 100644 --- a/src/base/io/ioReadBench.c +++ b/src/base/io/ioReadBench.c @@ -84,7 +84,8 @@ Abc_Ntk_t * Io_ReadBenchNetwork( Extra_FileReader_t * p ) Abc_Ntk_t * pNtk; Abc_Obj_t * pNode; Vec_Str_t * vString; - char * pType, ** ppNames; + unsigned uTruth[8]; + char * pType, ** ppNames, * pString; int iLine, nNames; // allocate the empty network @@ -114,11 +115,71 @@ Abc_Ntk_t * Io_ReadBenchNetwork( Extra_FileReader_t * p ) { // get the node name and the node type pType = vTokens->pArray[1]; - if ( strcmp(pType, "DFF") == 0 ) + if ( strncmp(pType, "DFF", 3) == 0 ) // works for both DFF and DFFRSE { pNode = Io_ReadCreateLatch( pNtk, vTokens->pArray[2], vTokens->pArray[0] ); Abc_LatchSetInit0( pNode ); } + else if ( strcmp(pType, "LUT") == 0 ) + { + ppNames = (char **)vTokens->pArray + 3; + nNames = vTokens->nSize - 3; + // check the number of inputs + if ( nNames > 8 ) + { + printf( "%s: Currently cannot read truth tables with more than 8 inputs (%d).\n", Extra_FileReaderGetFileName(p), nNames ); + Vec_StrFree( vString ); + Abc_NtkDelete( pNtk ); + return NULL; + } + // get the hex string + pString = vTokens->pArray[2]; + if ( strncmp( pString, "0x", 2 ) ) + { + printf( "%s: The LUT signature (%s) does not look like a hexadecimal beginning with \"0x\".\n", Extra_FileReaderGetFileName(p), pString ); + Vec_StrFree( vString ); + Abc_NtkDelete( pNtk ); + return NULL; + } + pString += 2; + if ( !Extra_ReadHexadecimal( uTruth, pString, nNames ) ) + { + printf( "%s: Reading hexadecimal number (%s) has failed.\n", Extra_FileReaderGetFileName(p), pString ); + Vec_StrFree( vString ); + Abc_NtkDelete( pNtk ); + return NULL; + } + // check if the node is a constant node + if ( Extra_TruthIsConst0(uTruth, nNames) ) + { + pNode = Io_ReadCreateNode( pNtk, vTokens->pArray[0], ppNames, 0 ); + Abc_ObjSetData( pNode, Abc_SopRegister( pNtk->pManFunc, " 0\n" ) ); + } + else if ( Extra_TruthIsConst1(uTruth, nNames) ) + { + pNode = Io_ReadCreateNode( pNtk, vTokens->pArray[0], ppNames, 0 ); + Abc_ObjSetData( pNode, Abc_SopRegister( pNtk->pManFunc, " 1\n" ) ); + } + else + { + // create the node + pNode = Io_ReadCreateNode( pNtk, vTokens->pArray[0], ppNames, nNames ); + assert( nNames > 0 ); + if ( nNames > 1 ) + Abc_ObjSetData( pNode, Abc_SopCreateFromTruth(pNtk->pManFunc, nNames, uTruth) ); + else if ( pString[0] == '2' ) + Abc_ObjSetData( pNode, Abc_SopCreateBuf(pNtk->pManFunc) ); + else if ( pString[0] == '1' ) + Abc_ObjSetData( pNode, Abc_SopCreateInv(pNtk->pManFunc) ); + else + { + printf( "%s: Reading truth table (%s) of single-input node has failed.\n", Extra_FileReaderGetFileName(p), pString ); + Vec_StrFree( vString ); + Abc_NtkDelete( pNtk ); + return NULL; + } + } + } else { // create a new node and add it to the network @@ -144,10 +205,10 @@ Abc_Ntk_t * Io_ReadBenchNetwork( Extra_FileReader_t * p ) Abc_ObjSetData( pNode, Abc_SopCreateInv(pNtk->pManFunc) ); else if ( strncmp(pType, "MUX", 3) == 0 ) Abc_ObjSetData( pNode, Abc_SopRegister(pNtk->pManFunc, "1-0 1\n-11 1\n") ); - else if ( strncmp(pType, "vdd", 3) == 0 ) - Abc_ObjSetData( pNode, Abc_SopRegister( pNtk->pManFunc, " 1\n" ) ); else if ( strncmp(pType, "gnd", 3) == 0 ) Abc_ObjSetData( pNode, Abc_SopRegister( pNtk->pManFunc, " 0\n" ) ); + else if ( strncmp(pType, "vdd", 3) == 0 ) + Abc_ObjSetData( pNode, Abc_SopRegister( pNtk->pManFunc, " 1\n" ) ); else { printf( "Io_ReadBenchNetwork(): Cannot determine gate type \"%s\" in line %d.\n", pType, Extra_FileReaderGetLineNumber(p, 0) ); |